ramnit | 207ade18b0e9cc372d078ca17923d5a91d6544ccc1156700a5073988518d1fed

General

Target

JaffaCakes118_643388aa9b323b7343a85874d3c2eca9.exe
Size

123KB
MD5

643388aa9b323b7343a85874d3c2eca9
SHA1

445e9a73232b3dfff6076040c3779fd9fd61b3b2
SHA256

207ade18b0e9cc372d078ca17923d5a91d6544ccc1156700a5073988518d1fed
SHA512

f536fba277699892fddfd508e96c7b37504a04b6bf63555fa246209b2f74e49821b3c3a10ae64c9f5aa2ee73038427ffaa57c3d04aff3cd2a483158e48ab24ee
SSDEEP

1536:wR0vxn3Pc0LCH9MtbvabUDzJYWu3BmiIuw22Jn1fbO4V:wR2xn3k0CdM1vabyzJYWqQa2

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
1956	WaterMark.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1544-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1544-12-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1544-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1544-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1956-27-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1956-22-0x0000000000400000-0x0000000000442000-memory.dmp	upx
behavioral2/memory/1544-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1544-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1544-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1956-34-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1956-35-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxD978.tmp	JaffaCakes118_643388aa9b323b7343a85874d3c2eca9.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_643388aa9b323b7343a85874d3c2eca9.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_643388aa9b323b7343a85874d3c2eca9.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3628	4608	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_643388aa9b323b7343a85874d3c2eca9.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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1710729226"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156198"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "443776662"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\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 (data)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{91822F79-D3D9-11EF-9361-CAF61997B0B0} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156198"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1709322983"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
1956	WaterMark.exe
1956	WaterMark.exe
1956	WaterMark.exe
1956	WaterMark.exe
1956	WaterMark.exe
1956	WaterMark.exe
1956	WaterMark.exe
1956	WaterMark.exe
1956	WaterMark.exe
1956	WaterMark.exe
1956	WaterMark.exe
1956	WaterMark.exe
1956	WaterMark.exe
1956	WaterMark.exe
1956	WaterMark.exe
1956	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1956	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4216	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4216	iexplore.exe
4216	iexplore.exe
1540	IEXPLORE.EXE
1540	IEXPLORE.EXE
1540	IEXPLORE.EXE
1540	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1544	JaffaCakes118_643388aa9b323b7343a85874d3c2eca9.exe
1956	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1544 wrote to memory of 1956	1544	JaffaCakes118_643388aa9b323b7343a85874d3c2eca9.exe	82
PID 1544 wrote to memory of 1956	1544	JaffaCakes118_643388aa9b323b7343a85874d3c2eca9.exe	82
PID 1544 wrote to memory of 1956	1544	JaffaCakes118_643388aa9b323b7343a85874d3c2eca9.exe	82
PID 1956 wrote to memory of 4608	1956	WaterMark.exe	83
PID 1956 wrote to memory of 4608	1956	WaterMark.exe	83
PID 1956 wrote to memory of 4608	1956	WaterMark.exe	83
PID 1956 wrote to memory of 4608	1956	WaterMark.exe	83
PID 1956 wrote to memory of 4608	1956	WaterMark.exe	83
PID 1956 wrote to memory of 4608	1956	WaterMark.exe	83
PID 1956 wrote to memory of 4608	1956	WaterMark.exe	83
PID 1956 wrote to memory of 4608	1956	WaterMark.exe	83
PID 1956 wrote to memory of 4608	1956	WaterMark.exe	83
PID 1956 wrote to memory of 4216	1956	WaterMark.exe	87
PID 1956 wrote to memory of 4216	1956	WaterMark.exe	87
PID 1956 wrote to memory of 1448	1956	WaterMark.exe	88
PID 1956 wrote to memory of 1448	1956	WaterMark.exe	88
PID 4216 wrote to memory of 1540	4216	iexplore.exe	89
PID 4216 wrote to memory of 1540	4216	iexplore.exe	89
PID 4216 wrote to memory of 1540	4216	iexplore.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_643388aa9b323b7343a85874d3c2eca9.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_643388aa9b323b7343a85874d3c2eca9.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1544
- 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:1956
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:4608
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4608 -s 204
      4⤵
      Program crash
      PID:3628
- - 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:4216
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4216 CREDAT:17410 /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:1540
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:1448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4608 -ip 4608
1⤵
PID:4384

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
123KB

MD5
643388aa9b323b7343a85874d3c2eca9

SHA1
445e9a73232b3dfff6076040c3779fd9fd61b3b2

SHA256
207ade18b0e9cc372d078ca17923d5a91d6544ccc1156700a5073988518d1fed

SHA512
f536fba277699892fddfd508e96c7b37504a04b6bf63555fa246209b2f74e49821b3c3a10ae64c9f5aa2ee73038427ffaa57c3d04aff3cd2a483158e48ab24ee

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

Filesize
471B

MD5
9e22a9c34466faf7bc9cf642444b3f30

SHA1
0ac45262532cce40083cc9049fb12d4efb06c01f

SHA256
57569469879a3144b391cf9def258ad9ef29d7fd1d3d70a28cfb506443d7a119

SHA512
c60649fb0ecdd14c9a6d8f9ea7ac4356b24a5e1a238705bbc8294b72ea2fda21965af200746ae20dd5f45e386fc30e2189de6007e08ff3d7ec72b8dfc39435fe

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

Filesize
404B

MD5
7e82be11eef16c03909fe8a6ccc0ae04

SHA1
c76041b9d285e5f80b9f8457ebbb4f39d9f6a2a1

SHA256
83bbb4311b246a3afcc208d716f8b5b0320221699df86260037371162303d10b

SHA512
b3b304a4389beae15d8bb60dbf51627ee4e323f9a2f13f8effa6cb2e720c4717f2e7bc8f3255c55d5474d92668bfa1af04f803b177c99dde7396311dcca44f9e

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0BHOTC3C\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
memory/1544-3-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1544-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1544-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1544-1-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download
memory/1544-2-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1544-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1544-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1544-0-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1544-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1544-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1544-8-0x0000000000900000-0x0000000000901000-memory.dmp

Filesize
4KB

Download
memory/1544-7-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1956-27-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1956-22-0x0000000000400000-0x0000000000442000-memory.dmp

Filesize
264KB

Download
memory/1956-25-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/1956-34-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1956-33-0x00000000777B2000-0x00000000777B3000-memory.dmp

Filesize
4KB

Download
memory/1956-32-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/1956-35-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1956-28-0x00000000777B2000-0x00000000777B3000-memory.dmp

Filesize
4KB

Download
memory/4608-30-0x00000000001C0000-0x00000000001C1000-memory.dmp

Filesize
4KB

Download
memory/4608-31-0x00000000001A0000-0x00000000001A1000-memory.dmp

Filesize
4KB

Download

Analysis

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