ramnit | 2466b3a23e68eee914f194e50a3d2459d8e0627de91af757cf23408699bc43b8

General

Target

JaffaCakes118_c54a214a9e5c8add94d1c40d9562f8a3.exe
Size

92KB
MD5

c54a214a9e5c8add94d1c40d9562f8a3
SHA1

837826fd437162403f206053ccd74058a552aafe
SHA256

2466b3a23e68eee914f194e50a3d2459d8e0627de91af757cf23408699bc43b8
SHA512

64e9181274120d2b76ae8c45caaf4ab2880e5cd31417625726166a9a51248f17622cd9c62d056218fe2050ebcc9abda08745640a9b453e135af6f6ebde2fd527
SSDEEP

1536:CVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApE:SnxwgxgfR/DVG7wBpE

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 1 IoCs

pid	Process
736	WaterMark.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1140-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/736-21-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral2/memory/736-26-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/736-24-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1140-11-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1140-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1140-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1140-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1140-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1140-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/736-35-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/736-34-0x0000000000400000-0x000000000044E000-memory.dmp	upx
behavioral2/memory/736-36-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxA4EB.tmp	JaffaCakes118_c54a214a9e5c8add94d1c40d9562f8a3.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_c54a214a9e5c8add94d1c40d9562f8a3.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_c54a214a9e5c8add94d1c40d9562f8a3.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3536	4700	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 3 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	JaffaCakes118_c54a214a9e5c8add94d1c40d9562f8a3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WaterMark.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 27 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "336113054"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156830"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{3F84E689-D651-11EF-BDBF-FA89EA07D49F} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "337675859"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\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
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444047966"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156830"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
736	WaterMark.exe
736	WaterMark.exe
736	WaterMark.exe
736	WaterMark.exe
736	WaterMark.exe
736	WaterMark.exe
736	WaterMark.exe
736	WaterMark.exe
736	WaterMark.exe
736	WaterMark.exe
736	WaterMark.exe
736	WaterMark.exe
736	WaterMark.exe
736	WaterMark.exe
736	WaterMark.exe
736	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	736	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4336	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4336	iexplore.exe
4336	iexplore.exe
220	IEXPLORE.EXE
220	IEXPLORE.EXE
220	IEXPLORE.EXE
220	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1140	JaffaCakes118_c54a214a9e5c8add94d1c40d9562f8a3.exe
736	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1140 wrote to memory of 736	1140	JaffaCakes118_c54a214a9e5c8add94d1c40d9562f8a3.exe	83
PID 1140 wrote to memory of 736	1140	JaffaCakes118_c54a214a9e5c8add94d1c40d9562f8a3.exe	83
PID 1140 wrote to memory of 736	1140	JaffaCakes118_c54a214a9e5c8add94d1c40d9562f8a3.exe	83
PID 736 wrote to memory of 4700	736	WaterMark.exe	84
PID 736 wrote to memory of 4700	736	WaterMark.exe	84
PID 736 wrote to memory of 4700	736	WaterMark.exe	84
PID 736 wrote to memory of 4700	736	WaterMark.exe	84
PID 736 wrote to memory of 4700	736	WaterMark.exe	84
PID 736 wrote to memory of 4700	736	WaterMark.exe	84
PID 736 wrote to memory of 4700	736	WaterMark.exe	84
PID 736 wrote to memory of 4700	736	WaterMark.exe	84
PID 736 wrote to memory of 4700	736	WaterMark.exe	84
PID 736 wrote to memory of 4336	736	WaterMark.exe	89
PID 736 wrote to memory of 4336	736	WaterMark.exe	89
PID 736 wrote to memory of 2768	736	WaterMark.exe	90
PID 736 wrote to memory of 2768	736	WaterMark.exe	90
PID 4336 wrote to memory of 220	4336	iexplore.exe	92
PID 4336 wrote to memory of 220	4336	iexplore.exe	92
PID 4336 wrote to memory of 220	4336	iexplore.exe	92

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c54a214a9e5c8add94d1c40d9562f8a3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_c54a214a9e5c8add94d1c40d9562f8a3.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1140
- C:\Program Files (x86)\Microsoft\WaterMark.exe
  "C:\Program Files (x86)\Microsoft\WaterMark.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of UnmapMainImage
  - Suspicious use of WriteProcessMemory
  PID:736
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:4700
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4700 -s 204
      4⤵
      Program crash
      PID:3536
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4336
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4336 CREDAT:17410 /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:220
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:2768

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4700 -ip 4700
1⤵
PID:1796

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:\Program Files (x86)\Microsoft\WaterMark.exe

Filesize
92KB

MD5
c54a214a9e5c8add94d1c40d9562f8a3

SHA1
837826fd437162403f206053ccd74058a552aafe

SHA256
2466b3a23e68eee914f194e50a3d2459d8e0627de91af757cf23408699bc43b8

SHA512
64e9181274120d2b76ae8c45caaf4ab2880e5cd31417625726166a9a51248f17622cd9c62d056218fe2050ebcc9abda08745640a9b453e135af6f6ebde2fd527

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

Filesize
471B

MD5
5c880ecece7595aea41224edbf5f8bba

SHA1
883636d01cf260db4e245913bf0bf90ead6bbacf

SHA256
31736fecaf227fc906a4146252d5b452d9118e68c3a12c72095969f42724c621

SHA512
d5f565aa1cafa0fa8217c59355e7289138b862a99df2bbea6059b4f4ec1af0bd337e53d8349b9595606dfddbfe82d743ee748cff9b7c65b741d09e3cf9abb1cc

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

Filesize
404B

MD5
2624a9ae5feae1a6ba89ccef68b411c4

SHA1
2c2536da050a5f516533c47fac38401a115223e5

SHA256
dcb3dee7885665ea810e3ea81ba2c160c1e41e38014d326babe1d07daf9abad6

SHA512
580c39efd5363f34768789792a8cf1f30850312983a4338c19c41132bdcbc8406fa5e5a7cdab0e940bf287776b43e3e1e1792187460a33152319b2c421b6c9b9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\6IJLDY7V\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
memory/736-35-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/736-32-0x0000000076F02000-0x0000000076F03000-memory.dmp

Filesize
4KB

Download
memory/736-21-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/736-27-0x0000000076F02000-0x0000000076F03000-memory.dmp

Filesize
4KB

Download
memory/736-36-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/736-33-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/736-34-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/736-26-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/736-24-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/736-25-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/1140-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1140-0-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1140-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1140-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1140-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1140-3-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1140-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1140-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1140-2-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/1140-1-0x0000000000401000-0x0000000000404000-memory.dmp

Filesize
12KB

Download
memory/1140-28-0x0000000000401000-0x0000000000404000-memory.dmp

Filesize
12KB

Download
memory/1140-7-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/4700-31-0x0000000000870000-0x0000000000871000-memory.dmp

Filesize
4KB

Download
memory/4700-30-0x00000000008A0000-0x00000000008A1000-memory.dmp

Filesize
4KB

Download

Analysis

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