ramnit | 3f30d26b8e104e4c7b3bf2710a7ca8ac82c386e9f025bd868814240c6e304020

General

Target

JaffaCakes118_15afd7474e67c670eccb95ea356052e9.dll
Size

212KB
MD5

15afd7474e67c670eccb95ea356052e9
SHA1

4b5cfe87fa938639a1a9411908823479ab6fe4cd
SHA256

3f30d26b8e104e4c7b3bf2710a7ca8ac82c386e9f025bd868814240c6e304020
SHA512

e21bc5b97f688ede554685670bb076b421b1faadf28127c9f21b7fd73452b2daeaa0dcfe5050bb0b4b77a62cfcae82a2b04dbbaf1c24f7d7a735a57d50daf615
SSDEEP

3072:9dcQ2ZNMSQvbajUTUItjT68+xQoZZMPLItBjEWdvBQ0tM2:dATSOjUQKS/MzItzdvBQ0tT

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 2 IoCs

pid	Process
1028	rundll32mgr.exe
2760	WaterMark.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1028-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1028-13-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1028-12-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2760-27-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1028-11-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1028-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1028-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1028-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2760-35-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2760-36-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2760-37-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxB2C5.tmp	rundll32mgr.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2676	4832	WerFault.exe	87

System Location Discovery: System Language Discovery 1 TTPs 4 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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32mgr.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\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157621"	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\LastCheckForUpdateLowDateTime = "3546667570"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157621"	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
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Software\Microsoft\Internet Explorer\Main	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
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\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\Recovery\PendingRecovery	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\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{FED88B40-D968-11EF-AEE2-7ECF469E42CC} = "0"	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\Main	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\Main\WindowsSearch	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
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3544636439"	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\DomainSuggestion\NextUpdateDate = "444388019"	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\GPU	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
2760	WaterMark.exe
2760	WaterMark.exe
2760	WaterMark.exe
2760	WaterMark.exe
2760	WaterMark.exe
2760	WaterMark.exe
2760	WaterMark.exe
2760	WaterMark.exe
2760	WaterMark.exe
2760	WaterMark.exe
2760	WaterMark.exe
2760	WaterMark.exe
2760	WaterMark.exe
2760	WaterMark.exe
2760	WaterMark.exe
2760	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2760	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
212	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
212	iexplore.exe
212	iexplore.exe
2116	IEXPLORE.EXE
2116	IEXPLORE.EXE
2116	IEXPLORE.EXE
2116	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1028	rundll32mgr.exe
2760	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 4368 wrote to memory of 4468	4368	rundll32.exe	84
PID 4368 wrote to memory of 4468	4368	rundll32.exe	84
PID 4368 wrote to memory of 4468	4368	rundll32.exe	84
PID 4468 wrote to memory of 1028	4468	rundll32.exe	85
PID 4468 wrote to memory of 1028	4468	rundll32.exe	85
PID 4468 wrote to memory of 1028	4468	rundll32.exe	85
PID 1028 wrote to memory of 2760	1028	rundll32mgr.exe	86
PID 1028 wrote to memory of 2760	1028	rundll32mgr.exe	86
PID 1028 wrote to memory of 2760	1028	rundll32mgr.exe	86
PID 2760 wrote to memory of 4832	2760	WaterMark.exe	87
PID 2760 wrote to memory of 4832	2760	WaterMark.exe	87
PID 2760 wrote to memory of 4832	2760	WaterMark.exe	87
PID 2760 wrote to memory of 4832	2760	WaterMark.exe	87
PID 2760 wrote to memory of 4832	2760	WaterMark.exe	87
PID 2760 wrote to memory of 4832	2760	WaterMark.exe	87
PID 2760 wrote to memory of 4832	2760	WaterMark.exe	87
PID 2760 wrote to memory of 4832	2760	WaterMark.exe	87
PID 2760 wrote to memory of 4832	2760	WaterMark.exe	87
PID 2760 wrote to memory of 212	2760	WaterMark.exe	92
PID 2760 wrote to memory of 212	2760	WaterMark.exe	92
PID 2760 wrote to memory of 1524	2760	WaterMark.exe	93
PID 2760 wrote to memory of 1524	2760	WaterMark.exe	93
PID 212 wrote to memory of 2116	212	iexplore.exe	95
PID 212 wrote to memory of 2116	212	iexplore.exe	95
PID 212 wrote to memory of 2116	212	iexplore.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_15afd7474e67c670eccb95ea356052e9.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4368
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_15afd7474e67c670eccb95ea356052e9.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4468
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:1028
  - - C:\Program Files (x86)\Microsoft\WaterMark.exe
      "C:\Program Files (x86)\Microsoft\WaterMark.exe"
      4⤵
      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:2760
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:4832
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4832 -s 204
        6⤵
        Program crash
        
        PID:2676
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:212
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:212 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2116
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        
        PID:1524

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4832 -ip 4832
1⤵
PID:3436

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:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
2c48c73220d62a8faffe599e95896274

SHA1
452cd4222360fe7e881055d815ec65a2bbac564b

SHA256
35a3978f9dea3056b0c4a0a1945d785bb7a0022484782f414fa9ffa04f3d5967

SHA512
6547f2798297acc7ac11506328ef05f29074655f3e5a60adb188106c769806a2b1a8a15c7bd38c39da560df7df953798561398245667095536fc5748692cc9d8

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

Filesize
404B

MD5
302c61de3b144f7ef448ca7874bd2b7d

SHA1
1861f850637caaf26818fcb7ac1de95d43918278

SHA256
fa4e9472d90508ffd59096f797fe8b2ea3385ba3b1143002a0968575aeeada19

SHA512
105ae9956d9eeb5158070673b4b161184775ed1e61a95c69c62b6cad83841fd55a6d2185546a6398b8374c1cdf4c54a5df560dfe4957f4fc227cdf42cdac88d6

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
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
60KB

MD5
cd963c64ad0bea4ca85a4819f6eefed1

SHA1
d9cd6316cf3c6ce5ceec9694c2debc7b7981775f

SHA256
33c4b715dc8b183dff9aac65cc42c7f2c70658580b8e3d449878251482a5d906

SHA512
f7cd12c57eff3acf7c89b0e7b55dfa81623618a65d6c49b490c199cfe63ae9e858f2681c8ef1425d1e4b25f7b0bbd6d4a9d9788956c23f52fece3d5d79b5907e

Download Submit
memory/1028-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1028-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1028-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1028-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1028-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1028-10-0x00000000012B0000-0x00000000012B1000-memory.dmp

Filesize
4KB

Download
memory/1028-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1028-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2760-28-0x0000000077D42000-0x0000000077D43000-memory.dmp

Filesize
4KB

Download
memory/2760-34-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/2760-35-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2760-33-0x0000000077D42000-0x0000000077D43000-memory.dmp

Filesize
4KB

Download
memory/2760-36-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2760-37-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2760-27-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2760-26-0x00000000008A0000-0x00000000008A1000-memory.dmp

Filesize
4KB

Download
memory/4468-0-0x0000000010000000-0x0000000010037000-memory.dmp

Filesize
220KB

Download
memory/4832-32-0x0000000000E30000-0x0000000000E31000-memory.dmp

Filesize
4KB

Download
memory/4832-31-0x0000000000E50000-0x0000000000E51000-memory.dmp

Filesize
4KB

Download

Analysis

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