ramnit | 2b2c749e5264c90086a465252d86f2bf4313bba7065b4574d3c2e5cc5e57b50c

General

Target

JaffaCakes118_4012d348057128a3e96bd7db0e5cb2df.exe
Size

120KB
MD5

4012d348057128a3e96bd7db0e5cb2df
SHA1

d4e5e3236f36a88d04338c64d50f04118455e4d9
SHA256

2b2c749e5264c90086a465252d86f2bf4313bba7065b4574d3c2e5cc5e57b50c
SHA512

ecec45b00d575926d8896dde6a8cd33bcc451be442776f6a7c3a10002ed871830f30e34b1b68f2edbebe1c467fa419e756d6b54c41683a1a57c5bad12bc6bd0f
SSDEEP

1536:KVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApEwMTkRA3Npsn:6nxwgxgfR/DVG7wBpEwnRA3Nen

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
4792	WaterMark.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1648-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1648-2-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1648-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1648-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4792-24-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1648-12-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1648-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1648-1-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4792-30-0x0000000000400000-0x000000000061B000-memory.dmp	upx
behavioral2/memory/4792-34-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4792-33-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4792-31-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4792-36-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px9BB3.tmp	JaffaCakes118_4012d348057128a3e96bd7db0e5cb2df.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_4012d348057128a3e96bd7db0e5cb2df.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_4012d348057128a3e96bd7db0e5cb2df.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4764	3280	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_4012d348057128a3e96bd7db0e5cb2df.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-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\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-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "443635584"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31155869"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3975032803"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{188967E6-D291-11EF-AEE2-CAF61997B0B0} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3976751533"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31155869"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4792	WaterMark.exe
4792	WaterMark.exe
4792	WaterMark.exe
4792	WaterMark.exe
4792	WaterMark.exe
4792	WaterMark.exe
4792	WaterMark.exe
4792	WaterMark.exe
4792	WaterMark.exe
4792	WaterMark.exe
4792	WaterMark.exe
4792	WaterMark.exe
4792	WaterMark.exe
4792	WaterMark.exe
4792	WaterMark.exe
4792	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4792	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1700	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1700	iexplore.exe
1700	iexplore.exe
3308	IEXPLORE.EXE
3308	IEXPLORE.EXE
3308	IEXPLORE.EXE
3308	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1648	JaffaCakes118_4012d348057128a3e96bd7db0e5cb2df.exe
4792	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1648 wrote to memory of 4792	1648	JaffaCakes118_4012d348057128a3e96bd7db0e5cb2df.exe	83
PID 1648 wrote to memory of 4792	1648	JaffaCakes118_4012d348057128a3e96bd7db0e5cb2df.exe	83
PID 1648 wrote to memory of 4792	1648	JaffaCakes118_4012d348057128a3e96bd7db0e5cb2df.exe	83
PID 4792 wrote to memory of 3280	4792	WaterMark.exe	84
PID 4792 wrote to memory of 3280	4792	WaterMark.exe	84
PID 4792 wrote to memory of 3280	4792	WaterMark.exe	84
PID 4792 wrote to memory of 3280	4792	WaterMark.exe	84
PID 4792 wrote to memory of 3280	4792	WaterMark.exe	84
PID 4792 wrote to memory of 3280	4792	WaterMark.exe	84
PID 4792 wrote to memory of 3280	4792	WaterMark.exe	84
PID 4792 wrote to memory of 3280	4792	WaterMark.exe	84
PID 4792 wrote to memory of 3280	4792	WaterMark.exe	84
PID 4792 wrote to memory of 1700	4792	WaterMark.exe	89
PID 4792 wrote to memory of 1700	4792	WaterMark.exe	89
PID 4792 wrote to memory of 636	4792	WaterMark.exe	90
PID 4792 wrote to memory of 636	4792	WaterMark.exe	90
PID 1700 wrote to memory of 3308	1700	iexplore.exe	92
PID 1700 wrote to memory of 3308	1700	iexplore.exe	92
PID 1700 wrote to memory of 3308	1700	iexplore.exe	92

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4012d348057128a3e96bd7db0e5cb2df.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4012d348057128a3e96bd7db0e5cb2df.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1648
- 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:4792
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:3280
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3280 -s 204
      4⤵
      Program crash
      PID:4764
- - 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:1700
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1700 CREDAT:17410 /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:3308
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3280 -ip 3280
1⤵
PID:4092

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
120KB

MD5
4012d348057128a3e96bd7db0e5cb2df

SHA1
d4e5e3236f36a88d04338c64d50f04118455e4d9

SHA256
2b2c749e5264c90086a465252d86f2bf4313bba7065b4574d3c2e5cc5e57b50c

SHA512
ecec45b00d575926d8896dde6a8cd33bcc451be442776f6a7c3a10002ed871830f30e34b1b68f2edbebe1c467fa419e756d6b54c41683a1a57c5bad12bc6bd0f

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

Filesize
471B

MD5
fdba1e1aaafa78dc1bc5319f2afb6f86

SHA1
5432b1fa5f940052c9f9117307b2c97a7950cab2

SHA256
83c001e05993c8e603aec23cc4fa21a1515943496a69e18ab4a1196294b5354d

SHA512
ad7a1db5d9f4ac4edc07dfaacd2dd5aa15d8e228b2e096f9add822e4be84c66db28729583f9fdd5ae4f20fe685854cf2c35ced250a19df3b001c7b563c78a13e

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

Filesize
404B

MD5
dd9cb2ab97dfa048409c1eabbe8c561a

SHA1
bb1b8349bd21a3994f6d079564225bdde6b33590

SHA256
777504902fc80e9acc8c0fc06dd536d0db2522bc84fef6a816451dbf5976a5bd

SHA512
5f4638bc12d4cb4714e3bfd1a3a40e60de9dc04f640f258a98ece0d5dad05e6ba4cee977d4e96f96d9a8c7ecce6f0b68195a3b8f12c4bc81457d655ab6bb4e5d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\M6JHG9EK\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
memory/1648-3-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1648-2-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1648-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1648-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1648-6-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

Filesize
4KB

Download
memory/1648-1-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1648-0-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/1648-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1648-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3280-29-0x00000000010E0000-0x00000000010E1000-memory.dmp

Filesize
4KB

Download
memory/3280-28-0x0000000001100000-0x0000000001101000-memory.dmp

Filesize
4KB

Download
memory/4792-24-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4792-30-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/4792-34-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4792-33-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4792-32-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/4792-31-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4792-35-0x0000000077BD2000-0x0000000077BD3000-memory.dmp

Filesize
4KB

Download
memory/4792-36-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4792-25-0x00000000005B0000-0x00000000005B1000-memory.dmp

Filesize
4KB

Download
memory/4792-26-0x0000000077BD2000-0x0000000077BD3000-memory.dmp

Filesize
4KB

Download
memory/4792-20-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download

Analysis

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