Gen.Heur.Minggy.1_af2910a898

Dynamic Analysis

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

%original file name%.exe:1772
mfynxy.exe:1340

The Trojan injects its code into the following process(es):No processes have been created.

Mutexes

The following mutexes were created/opened:No objects were found.

File activity

The process %original file name%.exe:1772 makes changes in the file system.

The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\All Users\Application Data\Saaaalamm\Mira.h (512124 bytes)
%Documents and Settings%\All Users\Application Data\mfynxy.exe (515770 bytes)

The process mfynxy.exe:1340 makes changes in the file system.

The Trojan creates and/or writes to the following file(s):

C:\AUTOEXEC.BAT .exe (1029784 bytes)
C:\MSDOS.SYS .exe (1029784 bytes)
C:\IO.SYS .exe (1029784 bytes)
C:\boot.ini .exe (1029784 bytes)
C:\%original file name%.exe .exe (1029784 bytes)
%Documents and Settings% .exe (1029784 bytes)
C:\RECYCLER .exe (1029784 bytes)
C:\ntldr .exe (1029784 bytes)
C:\original .exe (1029784 bytes)
C:\totalcmd .exe (1029784 bytes)
C:\NTDETECT.COM .exe (1029784 bytes)
C:\System Volume Information .exe (1029784 bytes)
C:\CONFIG.SYS .exe (1029784 bytes)
C:\marker .exe (1029784 bytes)
%Program Files% .exe (1029784 bytes)
%WinDir% .exe (1029784 bytes)
C:\pagefile.sys .exe (1029784 bytes)

The Trojan deletes the following file(s):

C:\Mirax (0 bytes)
C:\Miray (0 bytes)
C:\Mirat (0 bytes)
C:\Mirau (0 bytes)
C:\Mirav (0 bytes)
C:\Miraw (0 bytes)
C:\Miraq (0 bytes)
C:\Mirar (0 bytes)
C:\Mirah (0 bytes)
C:\Mirai (0 bytes)
C:\Miraj (0 bytes)
C:\Mirad (0 bytes)
C:\Miraf (0 bytes)

Registry activity

The process %original file name%.exe:1772 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "DB D3 D3 28 81 2B 6E C5 14 AD EE FD 77 C6 B6 DA"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

The process mfynxy.exe:1340 makes changes in the system registry.

The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Microsoft® Windows® Operating System" = "%Documents and Settings%\All Users\Application Data\mfynxy.exe"

Dropped PE files

MD5	File path
707f8c7953ebe87cf4a699ae16814b6e	c:\AUTOEXEC.BAT .exe
575a5a23af6e80cc80ee1c2e70db993f	c:\CONFIG.SYS .exe
4f4282fb6eaa4128f1900693d56810ff	c:\Documents and Settings .exe
30d5010415bd31dee3e2e7e30de1a5f5	c:\Documents and Settings\All Users\Application Data\Saaaalamm\Mira.h
cab88783cbe2b62ae35c7de6b7b645e4	c:\Documents and Settings\All Users\Application Data\mfynxy.exe
e6988bd5c02a8135a51bddb978e4b021	c:\IO.SYS .exe
964ac767ac99f9ccd6d1fb42a3de6861	c:\MSDOS.SYS .exe
a9f3801a3d693612ef3c9673b743e778	c:\NTDETECT.COM .exe
aa4753b486c868ea42e375134c99a168	c:\Perl .exe
16c6101a2a0485d55c390c1cd1f2bdab	c:\Program Files .exe
5b1999e6941cc4897aca47ea9ffd18f3	c:\RECYCLER .exe
84b8b3145915cf4f0644688de0a414f7	c:\System Volume Information .exe
ee818f9aff8788bac3daeb68a830b2b1	c:\WINDOWS .exe
146a40742f3c202a5de526a7b63b66a4	c:\%original file name%.exe .exe
8a0707f64a8647cc76aa133133b53493	c:\boot.ini .exe
e8189bd5bed8638f4bcb4faad5353816	c:\marker .exe
56eeecddd79a6b0cdb9794416a3bb678	c:\ntldr .exe
407122cf1ae76f626be5ff3b58aa1725	c:\original .exe
617036522ba0d2f498a9f00e7adc87aa	c:\pagefile.sys .exe
5d5f7e7f71fdc27a7268a8559b04fbfc	c:\totalcmd .exe

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

Removals

Remove it with Ad-Aware

1. Click (here) to download and install Ad-Aware Free Antivirus.
2. Update the definition files.
3. Run a full scan of your computer.

Manual removal*

1. Terminate malicious process(es) (How to End a Process With the Task Manager):

   %original file name%.exe:1772
   mfynxy.exe:1340

2. Delete the original Trojan file.
   
3. Delete or disinfect the following files created/modified by the Trojan:

   %Documents and Settings%\All Users\Application Data\Saaaalamm\Mira.h (512124 bytes)
   %Documents and Settings%\All Users\Application Data\mfynxy.exe (515770 bytes)
   C:\AUTOEXEC.BAT .exe (1029784 bytes)
   C:\MSDOS.SYS .exe (1029784 bytes)
   C:\IO.SYS .exe (1029784 bytes)
   C:\boot.ini .exe (1029784 bytes)
   C:\%original file name%.exe .exe (1029784 bytes)
   %Documents and Settings% .exe (1029784 bytes)
   C:\RECYCLER .exe (1029784 bytes)
   C:\ntldr .exe (1029784 bytes)
   C:\original .exe (1029784 bytes)
   C:\totalcmd .exe (1029784 bytes)
   C:\NTDETECT.COM .exe (1029784 bytes)
   C:\System Volume Information .exe (1029784 bytes)
   C:\CONFIG.SYS .exe (1029784 bytes)
   C:\marker .exe (1029784 bytes)
   %Program Files% .exe (1029784 bytes)
   %WinDir% .exe (1029784 bytes)
   C:\pagefile.sys .exe (1029784 bytes)

4. Delete the following value(s) in the autorun key (How to Work with System Registry):

   [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   "Microsoft® Windows® Operating System" = "%Documents and Settings%\All Users\Application Data\mfynxy.exe"

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.

Static Analysis

VersionInfo

No information is available.

No information is available.

PE Sections

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Section MD5
.text	4096	245368	245760	4.21465	8b164ac8ef3742f37830dc1842275667
.data	249856	608	1024	0.488703	6fda88cf7188a8245a53dfde927250fd
.rdata	253952	9384	9728	3.47165	dbe852009dbd077a9976cb0ecfb9aadf
.bss	266240	18576	0	0	d41d8cd98f00b204e9800998ecf8427e
.idata	286720	2212	2560	2.97703	5e5242c565219f3bd33a6568632559dc
.rsrc	290816	26552	26624	4.79166	966e9a40cbc3ffbf29b29964dfae3bc2

Dropped from:

556edb94fc2d2132bd0a9b2a77c49fd7

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

Network Activity

URLs

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Map

The Trojan connects to the servers at the folowing location(s):

Strings from Dumps

mfynxy.exe_1340:

.text

.text

`.data

`.data

.rdata

.rdata

@.bss

@.bss

.idata

.idata

%Documents and Settings%\All Users\Application Data\mfynxy.exe

%Documents and Settings%\All Users\Application Data\mfynxy.exe

Software\Microsoft\Windows\CurrentVersion\Run

Software\Microsoft\Windows\CurrentVersion\Run

Windows

Windows

Operating System

Operating System

%H:%M:%S

%H:%M:%S

%m/%d/%y

%m/%d/%y

-0123456789

-0123456789

%s:%u: failed assertion `%s'

%s:%u: failed assertion `%s'

RegCloseKey

RegCloseKey

RegOpenKeyA

RegOpenKeyA

ADVAPI32.DLL

ADVAPI32.DLL

KERNEL32.dll

KERNEL32.dll

msvcrt.dll

msvcrt.dll

SHELL32.DLL

SHELL32.DLL