ramnit | 261887c2c51f40ad73d23100643c1390dcc07be84d08b15c2f0da9ec3340eb5f

General

Target

JaffaCakes118_6cf359b45831310b23f1666ae06e6fe8.exe
Size

144KB
MD5

6cf359b45831310b23f1666ae06e6fe8
SHA1

0fdf1208579018a69246825d448bda17d9dc4e3b
SHA256

261887c2c51f40ad73d23100643c1390dcc07be84d08b15c2f0da9ec3340eb5f
SHA512

1354e1781af9bb865f5c975d666390e14978e4ab30cabfcdd27c4aa57a0bd7c589c5c258e58c54164019228764ef7e3ac04defc520ce1a4ee0e92b7c5b30d231
SSDEEP

1536:lVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApEHhTYY/NjtaX9Qppfi:1nxwgxgfR/DVG7wBpEBT/Fxg

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
4460	WaterMark.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3788-2-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3788-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3788-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3788-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3788-16-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4460-24-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3788-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/3788-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4460-32-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4460-33-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4460-31-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4460-35-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px8C32.tmp	JaffaCakes118_6cf359b45831310b23f1666ae06e6fe8.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_6cf359b45831310b23f1666ae06e6fe8.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_6cf359b45831310b23f1666ae06e6fe8.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1128	3964	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_6cf359b45831310b23f1666ae06e6fe8.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-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Internet Explorer\Main	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\DomainSuggestion\FileNames	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\WindowsSearch	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\VersionManager\LastCheckForUpdateLowDateTime = "1873261039"	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\DomainSuggestion\NextUpdateDate = "443798153"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{9B42EA31-D40B-11EF-B9D5-FE5A08828E79} = "0"	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
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\VersionManager	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\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1875448169"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156248"	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	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	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\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\Main	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\LastCheckForUpdateHighDateTime = "31156248"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4460	WaterMark.exe
4460	WaterMark.exe
4460	WaterMark.exe
4460	WaterMark.exe
4460	WaterMark.exe
4460	WaterMark.exe
4460	WaterMark.exe
4460	WaterMark.exe
4460	WaterMark.exe
4460	WaterMark.exe
4460	WaterMark.exe
4460	WaterMark.exe
4460	WaterMark.exe
4460	WaterMark.exe
4460	WaterMark.exe
4460	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4460	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2016	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2016	iexplore.exe
2016	iexplore.exe
3000	IEXPLORE.EXE
3000	IEXPLORE.EXE
3000	IEXPLORE.EXE
3000	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
3788	JaffaCakes118_6cf359b45831310b23f1666ae06e6fe8.exe
4460	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3788 wrote to memory of 4460	3788	JaffaCakes118_6cf359b45831310b23f1666ae06e6fe8.exe	82
PID 3788 wrote to memory of 4460	3788	JaffaCakes118_6cf359b45831310b23f1666ae06e6fe8.exe	82
PID 3788 wrote to memory of 4460	3788	JaffaCakes118_6cf359b45831310b23f1666ae06e6fe8.exe	82
PID 4460 wrote to memory of 3964	4460	WaterMark.exe	83
PID 4460 wrote to memory of 3964	4460	WaterMark.exe	83
PID 4460 wrote to memory of 3964	4460	WaterMark.exe	83
PID 4460 wrote to memory of 3964	4460	WaterMark.exe	83
PID 4460 wrote to memory of 3964	4460	WaterMark.exe	83
PID 4460 wrote to memory of 3964	4460	WaterMark.exe	83
PID 4460 wrote to memory of 3964	4460	WaterMark.exe	83
PID 4460 wrote to memory of 3964	4460	WaterMark.exe	83
PID 4460 wrote to memory of 3964	4460	WaterMark.exe	83
PID 4460 wrote to memory of 2016	4460	WaterMark.exe	87
PID 4460 wrote to memory of 2016	4460	WaterMark.exe	87
PID 4460 wrote to memory of 1324	4460	WaterMark.exe	88
PID 4460 wrote to memory of 1324	4460	WaterMark.exe	88
PID 2016 wrote to memory of 3000	2016	iexplore.exe	89
PID 2016 wrote to memory of 3000	2016	iexplore.exe	89
PID 2016 wrote to memory of 3000	2016	iexplore.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6cf359b45831310b23f1666ae06e6fe8.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6cf359b45831310b23f1666ae06e6fe8.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3788
- 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:4460
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:3964
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3964 -s 204
      4⤵
      Program crash
      PID:1128
- - 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:2016
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2016 CREDAT:17410 /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:3000
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:1324

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3964 -ip 3964
1⤵
PID:4184

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
144KB

MD5
6cf359b45831310b23f1666ae06e6fe8

SHA1
0fdf1208579018a69246825d448bda17d9dc4e3b

SHA256
261887c2c51f40ad73d23100643c1390dcc07be84d08b15c2f0da9ec3340eb5f

SHA512
1354e1781af9bb865f5c975d666390e14978e4ab30cabfcdd27c4aa57a0bd7c589c5c258e58c54164019228764ef7e3ac04defc520ce1a4ee0e92b7c5b30d231

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

Filesize
471B

MD5
eec6845b257a7c8f95b25485b3666ae4

SHA1
79e6f675b80bc885bda844e766088a62d84ded75

SHA256
70a3cfb8ce21db27ecfb8143c459eda8218c5f7a0db0945c3117cbf5c180eb6d

SHA512
b6ceaabb99fb2011f9dd6ae4b59e3435c397204fcd4b3168e65d6616a85d49d13f80cd11a191e223609538d4f144103757f730c61acd21f4053bb5ecb6fb4f1f

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

Filesize
404B

MD5
657e81094417322233944dfd9a48e13f

SHA1
4060141cfd75e5c487c55781bbf62ee404543e80

SHA256
026c1e77e43f58d97ac3e09b9bc97dee74b66e4d884957eda93325bd06b9af80

SHA512
ad348f4fc2c62d3402b09d998b3449c3e61633bf49faf8e65ec4746558512349617e56ff7641e291214ac88b3ac7cf1db22e14b25ca8f3ce6bd2a5849680c179

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
memory/3788-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3788-7-0x0000000000910000-0x0000000000911000-memory.dmp

Filesize
4KB

Download
memory/3788-1-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download
memory/3788-16-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3788-2-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3788-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3788-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3788-0-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download
memory/3788-3-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3788-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3964-28-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/3964-29-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/4460-25-0x0000000000060000-0x0000000000061000-memory.dmp

Filesize
4KB

Download
memory/4460-30-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/4460-32-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4460-34-0x0000000077502000-0x0000000077503000-memory.dmp

Filesize
4KB

Download
memory/4460-33-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4460-31-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4460-35-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4460-26-0x0000000077502000-0x0000000077503000-memory.dmp

Filesize
4KB

Download
memory/4460-24-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4460-21-0x0000000000400000-0x000000000046A000-memory.dmp

Filesize
424KB

Download

Analysis

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