ramnit | 1f55ad5a2b7e8ed045d6e5eb5bb1804f1d84ecf3959f27dd4b38eae3c588365c

General

Target

JaffaCakes118_4d1cdce2344c6b4b66678f35724d4c5d.exe
Size

188KB
MD5

4d1cdce2344c6b4b66678f35724d4c5d
SHA1

888656eea4037abc11f7c03457ef06c6a7f4f637
SHA256

1f55ad5a2b7e8ed045d6e5eb5bb1804f1d84ecf3959f27dd4b38eae3c588365c
SHA512

a3c0dba81edfcd86b38c44927b85f9eaffcea4dcba050761a2d964057d9026b3cefdc718e00699c2ba7fbd05c6c7daf83d3062fd4274a3142b01064e3429ec8b
SSDEEP

1536:9VZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApE:NnxwgxgfR/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
2608	WaterMark.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1000-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1000-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1000-12-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1000-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1000-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1000-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1000-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2608-26-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2608-25-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2608-33-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2608-35-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2608-36-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxAC3E.tmp	JaffaCakes118_4d1cdce2344c6b4b66678f35724d4c5d.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_4d1cdce2344c6b4b66678f35724d4c5d.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_4d1cdce2344c6b4b66678f35724d4c5d.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1120	4820	WerFault.exe	83

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_4d1cdce2344c6b4b66678f35724d4c5d.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
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1689986922"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31155975"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{9045B0BF-D2FA-11EF-ADF2-5227CD58F2D9} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1690612548"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31155975"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\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-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "443680882"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
2608	WaterMark.exe
2608	WaterMark.exe
2608	WaterMark.exe
2608	WaterMark.exe
2608	WaterMark.exe
2608	WaterMark.exe
2608	WaterMark.exe
2608	WaterMark.exe
2608	WaterMark.exe
2608	WaterMark.exe
2608	WaterMark.exe
2608	WaterMark.exe
2608	WaterMark.exe
2608	WaterMark.exe
2608	WaterMark.exe
2608	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2608	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1840	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1840	iexplore.exe
1840	iexplore.exe
2772	IEXPLORE.EXE
2772	IEXPLORE.EXE
2772	IEXPLORE.EXE
2772	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1000	JaffaCakes118_4d1cdce2344c6b4b66678f35724d4c5d.exe
2608	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1000 wrote to memory of 2608	1000	JaffaCakes118_4d1cdce2344c6b4b66678f35724d4c5d.exe	82
PID 1000 wrote to memory of 2608	1000	JaffaCakes118_4d1cdce2344c6b4b66678f35724d4c5d.exe	82
PID 1000 wrote to memory of 2608	1000	JaffaCakes118_4d1cdce2344c6b4b66678f35724d4c5d.exe	82
PID 2608 wrote to memory of 4820	2608	WaterMark.exe	83
PID 2608 wrote to memory of 4820	2608	WaterMark.exe	83
PID 2608 wrote to memory of 4820	2608	WaterMark.exe	83
PID 2608 wrote to memory of 4820	2608	WaterMark.exe	83
PID 2608 wrote to memory of 4820	2608	WaterMark.exe	83
PID 2608 wrote to memory of 4820	2608	WaterMark.exe	83
PID 2608 wrote to memory of 4820	2608	WaterMark.exe	83
PID 2608 wrote to memory of 4820	2608	WaterMark.exe	83
PID 2608 wrote to memory of 4820	2608	WaterMark.exe	83
PID 2608 wrote to memory of 1840	2608	WaterMark.exe	87
PID 2608 wrote to memory of 1840	2608	WaterMark.exe	87
PID 2608 wrote to memory of 5000	2608	WaterMark.exe	88
PID 2608 wrote to memory of 5000	2608	WaterMark.exe	88
PID 1840 wrote to memory of 2772	1840	iexplore.exe	89
PID 1840 wrote to memory of 2772	1840	iexplore.exe	89
PID 1840 wrote to memory of 2772	1840	iexplore.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4d1cdce2344c6b4b66678f35724d4c5d.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4d1cdce2344c6b4b66678f35724d4c5d.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1000
- 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:2608
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:4820
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4820 -s 208
      4⤵
      Program crash
      PID:1120
- - 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:1840
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1840 CREDAT:17410 /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:2772
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:5000

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4820 -ip 4820
1⤵
PID:4024

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
188KB

MD5
4d1cdce2344c6b4b66678f35724d4c5d

SHA1
888656eea4037abc11f7c03457ef06c6a7f4f637

SHA256
1f55ad5a2b7e8ed045d6e5eb5bb1804f1d84ecf3959f27dd4b38eae3c588365c

SHA512
a3c0dba81edfcd86b38c44927b85f9eaffcea4dcba050761a2d964057d9026b3cefdc718e00699c2ba7fbd05c6c7daf83d3062fd4274a3142b01064e3429ec8b

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
e1ab6e5b5cf3a4ed76fdfeb35cb0b402

SHA1
0392a562c62058d0d25cb435b760c2c8e67f8ffa

SHA256
9886a707a09fcb0af6422eed6ea05d1fc9539008d10e97d5ec57de77ba3df2a9

SHA512
176af9b5ca91b71a815908bcb556af04f36ee7c85e0dd1181f1e0dd4fb9561fcc9aaebeed7a86651cef40dd7948bec51305690b0edaebca2683b56e45379c7a8

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PGH3GSHW\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
memory/1000-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1000-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1000-0-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/1000-8-0x00000000030F0000-0x00000000030F1000-memory.dmp

Filesize
4KB

Download
memory/1000-7-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/1000-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1000-3-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1000-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1000-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1000-1-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download
memory/1000-2-0x0000000000400000-0x0000000000481000-memory.dmp

Filesize
516KB

Download
memory/1000-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2608-27-0x0000000000060000-0x0000000000061000-memory.dmp

Filesize
4KB

Download
memory/2608-32-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/2608-34-0x0000000077052000-0x0000000077053000-memory.dmp

Filesize
4KB

Download
memory/2608-33-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2608-35-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2608-36-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2608-28-0x0000000077052000-0x0000000077053000-memory.dmp

Filesize
4KB

Download
memory/2608-25-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2608-26-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4820-31-0x00000000012D0000-0x00000000012D1000-memory.dmp

Filesize
4KB

Download
memory/4820-30-0x00000000012F0000-0x00000000012F1000-memory.dmp

Filesize
4KB

Download

Analysis

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