ramnit | 6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1

General

Target

6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1.exe
Size

1.5MB
MD5

6d2681b248f13382d4556d73a96acf36
SHA1

271eb3b96c6208fd0b8ac3d16d7c4e7a6e58549d
SHA256

6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1
SHA512

d19e45613ab28dcd9a66cf2e6a1d905ca152f23e8f1441be36eb576e5047b1dfefec35914a7fb870d68022a6a021e03f34e4125afaf210a76a60938b004726ea
SSDEEP

24576:9Au5g2JdHjG1jcfJjdywpTsvTo3gDsUR/iiG3F/Bw2jKk3cif6RIKWXI:FbTDG1jcxjIwpTcNDsUxi/Jwe1cii2Kx

Score

10^/10

ramnit banker discovery spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit
Ramnit family
ramnit

Executes dropped EXE 2 IoCs

pid	Process
2888	6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1Srv.exe
3404	DesktopLayer.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4816	6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000b000000023b89-4.dat	upx
behavioral2/memory/3404-10-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2888-5-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3404-13-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3404-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px9E72.tmp	6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1Srv.exe

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1Srv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DesktopLayer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1.exe

Modifies Internet Explorer settings 1 TTPs 26 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157746"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3465163119"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{FA14B9A1-D9E5-11EF-B9D5-5EA348B38F9D} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3471257206"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157746"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444441698"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3404	DesktopLayer.exe
3404	DesktopLayer.exe
3404	DesktopLayer.exe
3404	DesktopLayer.exe
3404	DesktopLayer.exe
3404	DesktopLayer.exe
3404	DesktopLayer.exe
3404	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1188	iexplore.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
4816	6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1.exe
1188	iexplore.exe
1188	iexplore.exe
4352	IEXPLORE.EXE
4352	IEXPLORE.EXE
4352	IEXPLORE.EXE
4352	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4816 wrote to memory of 2888	4816	6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1.exe	83
PID 4816 wrote to memory of 2888	4816	6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1.exe	83
PID 4816 wrote to memory of 2888	4816	6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1.exe	83
PID 2888 wrote to memory of 3404	2888	6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1Srv.exe	84
PID 2888 wrote to memory of 3404	2888	6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1Srv.exe	84
PID 2888 wrote to memory of 3404	2888	6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1Srv.exe	84
PID 3404 wrote to memory of 1188	3404	DesktopLayer.exe	85
PID 3404 wrote to memory of 1188	3404	DesktopLayer.exe	85
PID 1188 wrote to memory of 4352	1188	iexplore.exe	86
PID 1188 wrote to memory of 4352	1188	iexplore.exe	86
PID 1188 wrote to memory of 4352	1188	iexplore.exe	86

C:\Users\Admin\AppData\Local\Temp\6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1.exe
"C:\Users\Admin\AppData\Local\Temp\6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1.exe"
1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4816
- C:\Users\Admin\AppData\Local\Temp\6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1Srv.exe
  C:\Users\Admin\AppData\Local\Temp\6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1Srv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2888
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3404
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1188
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1188 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4352

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
dc142ff8759ecb81417ba231bbcf25d0

SHA1
201681d524cde8af5c11b5111f5fa697521c5739

SHA256
d6e2a573b1e137d8b823b82cfeaadeb30df36a0fa7a268a1278465b28fdc7bb6

SHA512
b36456cf3ef37e4bbe0e4acf8b25cc85a39f8517d1b80b3191b1be7ddc6d58c74247b2d9dedb0b67ac4f8a2f3d92773e90aee326cfe612f8573ba6ad6b73e833

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
463810c3d7efc2148c727407c80bc2ed

SHA1
e09ee025fc32f5a608bf6bc2422de9c0bbb5c0c5

SHA256
3ae7e7ea69253e952db994ad7fc0402248de3689c54e8afedd3e5795a4d022a0

SHA512
46774a07787c30cdedec00b248a90b1bc351d61d4ad49b086815bae39400371c4c942bf95e5490ce7bd6b5b217165482a644385e3ac8edf490f6b6d4fb1d72a0

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FQRZN8O7\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Users\Admin\AppData\Local\Temp\6121035a4467d1f21ec279d164e2ea02ea87cbf74aa5b91459b9ed3ec3eee1b1Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/2888-6-0x0000000000540000-0x000000000054F000-memory.dmp

Filesize
60KB

Download
memory/2888-5-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3404-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3404-14-0x0000000000490000-0x0000000000491000-memory.dmp

Filesize
4KB

Download
memory/3404-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3404-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4816-0-0x0000000000400000-0x000000000083C000-memory.dmp

Filesize
4.2MB

Download
memory/4816-18-0x0000000000400000-0x000000000083C000-memory.dmp

Filesize
4.2MB

Download

Analysis

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