ramnit | 71f3ba3217a3221fa5331335a7020a72029e34d6b3c55436e3336b87d2d4e66a

General

Target

JaffaCakes118_23de6ce9e80040716d3d3f3a8e0da4e3.exe
Size

92KB
MD5

23de6ce9e80040716d3d3f3a8e0da4e3
SHA1

09c138f09fe9f9e3dc45009c4bd3b5b31229744c
SHA256

71f3ba3217a3221fa5331335a7020a72029e34d6b3c55436e3336b87d2d4e66a
SHA512

3fcbe1ad895cb35cb433d7fc16f46e8fc020ae0ffc68708ca9078342e7e57cf31984ccc5ba251c1384ec447a5518bda355d0c8e56a50078bfea2f12cd805ad5a
SSDEEP

1536:RVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApE:BnxwgxgfR/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
2248	WaterMark.exe

UPX packed file 13 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5056-4-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/5056-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/5056-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/5056-3-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/5056-2-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/5056-11-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/5056-13-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/5056-10-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2248-27-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2248-26-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2248-34-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2248-36-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2248-37-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px708C.tmp	JaffaCakes118_23de6ce9e80040716d3d3f3a8e0da4e3.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_23de6ce9e80040716d3d3f3a8e0da4e3.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	JaffaCakes118_23de6ce9e80040716d3d3f3a8e0da4e3.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3232	3532	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_23de6ce9e80040716d3d3f3a8e0da4e3.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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157895"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1394423289"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157895"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\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-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444505486"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1392079344"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{7E8FE651-DA7A-11EF-A7EA-D2BD7E71DA05} = "0"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
2248	WaterMark.exe
2248	WaterMark.exe
2248	WaterMark.exe
2248	WaterMark.exe
2248	WaterMark.exe
2248	WaterMark.exe
2248	WaterMark.exe
2248	WaterMark.exe
2248	WaterMark.exe
2248	WaterMark.exe
2248	WaterMark.exe
2248	WaterMark.exe
2248	WaterMark.exe
2248	WaterMark.exe
2248	WaterMark.exe
2248	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2248	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1804	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1804	iexplore.exe
1804	iexplore.exe
4032	IEXPLORE.EXE
4032	IEXPLORE.EXE
4032	IEXPLORE.EXE
4032	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
5056	JaffaCakes118_23de6ce9e80040716d3d3f3a8e0da4e3.exe
2248	WaterMark.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 5056 wrote to memory of 2248	5056	JaffaCakes118_23de6ce9e80040716d3d3f3a8e0da4e3.exe	83
PID 5056 wrote to memory of 2248	5056	JaffaCakes118_23de6ce9e80040716d3d3f3a8e0da4e3.exe	83
PID 5056 wrote to memory of 2248	5056	JaffaCakes118_23de6ce9e80040716d3d3f3a8e0da4e3.exe	83
PID 2248 wrote to memory of 3532	2248	WaterMark.exe	84
PID 2248 wrote to memory of 3532	2248	WaterMark.exe	84
PID 2248 wrote to memory of 3532	2248	WaterMark.exe	84
PID 2248 wrote to memory of 3532	2248	WaterMark.exe	84
PID 2248 wrote to memory of 3532	2248	WaterMark.exe	84
PID 2248 wrote to memory of 3532	2248	WaterMark.exe	84
PID 2248 wrote to memory of 3532	2248	WaterMark.exe	84
PID 2248 wrote to memory of 3532	2248	WaterMark.exe	84
PID 2248 wrote to memory of 3532	2248	WaterMark.exe	84
PID 2248 wrote to memory of 1804	2248	WaterMark.exe	91
PID 2248 wrote to memory of 1804	2248	WaterMark.exe	91
PID 2248 wrote to memory of 1060	2248	WaterMark.exe	92
PID 2248 wrote to memory of 1060	2248	WaterMark.exe	92
PID 1804 wrote to memory of 4032	1804	iexplore.exe	94
PID 1804 wrote to memory of 4032	1804	iexplore.exe	94
PID 1804 wrote to memory of 4032	1804	iexplore.exe	94

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_23de6ce9e80040716d3d3f3a8e0da4e3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_23de6ce9e80040716d3d3f3a8e0da4e3.exe"
1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:5056
- 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:2248
- - C:\Windows\SysWOW64\svchost.exe
    C:\Windows\system32\svchost.exe
    3⤵
    PID:3532
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3532 -s 204
      4⤵
      Program crash
      PID:3232
- - 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:1804
  - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1804 CREDAT:17410 /prefetch:2
      4⤵
      System Location Discovery: System Language Discovery
      Modifies Internet Explorer settings
      Suspicious use of SetWindowsHookEx
      PID:4032
- - C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies Internet Explorer settings
    PID:1060

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3532 -ip 3532
1⤵
PID:772

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
23de6ce9e80040716d3d3f3a8e0da4e3

SHA1
09c138f09fe9f9e3dc45009c4bd3b5b31229744c

SHA256
71f3ba3217a3221fa5331335a7020a72029e34d6b3c55436e3336b87d2d4e66a

SHA512
3fcbe1ad895cb35cb433d7fc16f46e8fc020ae0ffc68708ca9078342e7e57cf31984ccc5ba251c1384ec447a5518bda355d0c8e56a50078bfea2f12cd805ad5a

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

Filesize
471B

MD5
ce36378334f2edb4e728e0632afebb70

SHA1
89d54efcb8c7bbe532e5ad91b38468279d3f5c93

SHA256
6be47a3ecfbf81a123c297ee65d70177b4010bfbe728b94b4337453683b9a6e1

SHA512
3e09cc9ece1907c072f02f768ec749ceef3b8913f394bb075b1948d0409b7910670b91da7d35160c211d0bf8df05e83409a1ad7493ea53864c41f37305f75aa2

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

Filesize
404B

MD5
d216ac6438aba080ee5e4fd3a57be52a

SHA1
4a7bba73f0e5d0c515bf0b9971aaac2725e513eb

SHA256
3c7d14eb79b748dcfca8f2325e993991e95847a88236139062afb6aa4df93a7f

SHA512
f9ec5220dd90a5e61e4a9740bc7ab6c107f19318a0e66008e5bb29fc932f1f2d228b619fef2e2ecf35c8e533b62c7355f26746298a6c4b6403c257cd25a6cff2

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VKYZDMA5\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
memory/2248-34-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2248-36-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2248-27-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2248-35-0x0000000077B32000-0x0000000077B33000-memory.dmp

Filesize
4KB

Download
memory/2248-33-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/2248-28-0x0000000000060000-0x0000000000061000-memory.dmp

Filesize
4KB

Download
memory/2248-26-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2248-29-0x0000000077B32000-0x0000000077B33000-memory.dmp

Filesize
4KB

Download
memory/2248-37-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3532-31-0x0000000001030000-0x0000000001031000-memory.dmp

Filesize
4KB

Download
memory/3532-32-0x0000000001010000-0x0000000001011000-memory.dmp

Filesize
4KB

Download
memory/5056-3-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5056-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5056-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5056-0-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/5056-2-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5056-10-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5056-6-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/5056-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5056-7-0x00000000008F0000-0x00000000008F1000-memory.dmp

Filesize
4KB

Download
memory/5056-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5056-4-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5056-1-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download

Analysis

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