ramnit | c7c8de4b4943d9c245fb59ca60ea5697120d70495c50abccf56617ac3e13c990

General

Target

JaffaCakes118_85d5610e08d116e2edf3846ee138ea80.dll
Size

216KB
MD5

85d5610e08d116e2edf3846ee138ea80
SHA1

bbfcf941f4b5f18f1a884f38475a2c1681e3f9a7
SHA256

c7c8de4b4943d9c245fb59ca60ea5697120d70495c50abccf56617ac3e13c990
SHA512

fda76353c51b99d90a4c0c2cecf3e4a6970eef0101d0365290989b5017c49546b5b76863bc1ad5f54eba4060b232a685c16d5743c4fb4fa6aa233a1d239967d4
SSDEEP

3072:E2UxPvVKNiNz1a2JRC+Tq/Kc7/md/l9KIgzXnR5:nGvQ4Nx9RHTVVRL8Xnn

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
1864	rundll32mgr.exe
2248	WaterMark.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1864-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1864-12-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1864-15-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1864-17-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2248-33-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2248-26-0x0000000000400000-0x000000000042D000-memory.dmp	upx
behavioral2/memory/1864-14-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1864-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/1864-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2248-38-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2248-40-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2248-41-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px789B.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
3464	2076	WerFault.exe	92

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	rundll32mgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WaterMark.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 21 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\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-1-5-21-805952410-2104024357-1716932545-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "449386727"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{84F04DF0-06DF-11F0-AA2C-E209D95EDBF1} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\Software\Microsoft\Internet Explorer\GPU	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
1992	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1992	iexplore.exe
1992	iexplore.exe
3228	IEXPLORE.EXE
3228	IEXPLORE.EXE
3228	IEXPLORE.EXE
3228	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
1864	rundll32mgr.exe
2248	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 3168 wrote to memory of 1176	3168	rundll32.exe	89
PID 3168 wrote to memory of 1176	3168	rundll32.exe	89
PID 3168 wrote to memory of 1176	3168	rundll32.exe	89
PID 1176 wrote to memory of 1864	1176	rundll32.exe	90
PID 1176 wrote to memory of 1864	1176	rundll32.exe	90
PID 1176 wrote to memory of 1864	1176	rundll32.exe	90
PID 1864 wrote to memory of 2248	1864	rundll32mgr.exe	91
PID 1864 wrote to memory of 2248	1864	rundll32mgr.exe	91
PID 1864 wrote to memory of 2248	1864	rundll32mgr.exe	91
PID 2248 wrote to memory of 2076	2248	WaterMark.exe	92
PID 2248 wrote to memory of 2076	2248	WaterMark.exe	92
PID 2248 wrote to memory of 2076	2248	WaterMark.exe	92
PID 2248 wrote to memory of 2076	2248	WaterMark.exe	92
PID 2248 wrote to memory of 2076	2248	WaterMark.exe	92
PID 2248 wrote to memory of 2076	2248	WaterMark.exe	92
PID 2248 wrote to memory of 2076	2248	WaterMark.exe	92
PID 2248 wrote to memory of 2076	2248	WaterMark.exe	92
PID 2248 wrote to memory of 2076	2248	WaterMark.exe	92
PID 2248 wrote to memory of 1992	2248	WaterMark.exe	100
PID 2248 wrote to memory of 1992	2248	WaterMark.exe	100
PID 2248 wrote to memory of 4220	2248	WaterMark.exe	101
PID 2248 wrote to memory of 4220	2248	WaterMark.exe	101
PID 1992 wrote to memory of 3228	1992	iexplore.exe	102
PID 1992 wrote to memory of 3228	1992	iexplore.exe	102
PID 1992 wrote to memory of 3228	1992	iexplore.exe	102

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_85d5610e08d116e2edf3846ee138ea80.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3168
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_85d5610e08d116e2edf3846ee138ea80.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1176
- - 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:1864
  - - 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:2248
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:2076
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2076 -s 204
        6⤵
        Program crash
        
        PID:3464
    - - 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:1992
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1992 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3228
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        
        PID:4220

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2076 -ip 2076
1⤵
PID:3632

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\Local\Microsoft\Windows\INetCache\IE\28X5YDPF\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
115KB

MD5
0a745aeddb83ec4d137dfcc0f3d1ccad

SHA1
bc9f3298a33b71a6a26dc56408eca55d313800ab

SHA256
d28522f5a1bdd4cc70d29ce457e9bfcbb75d6d5fd2537ff15877ee2a502dd907

SHA512
85be6d620235ac9447ab8a65055cbf4d29ef0b6dbffc5d38bfd35071c26622fd0c48729daf4323d7c58e34b0204ba131792b40c9ec38bb4a597f5693e5ba2eaf

Download Submit
memory/1176-0-0x000000006D280000-0x000000006D2B6000-memory.dmp

Filesize
216KB

Download
memory/1864-29-0x0000000000401000-0x0000000000405000-memory.dmp

Filesize
16KB

Download
memory/1864-14-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1864-15-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1864-17-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1864-4-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/1864-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1864-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1864-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1864-10-0x0000000000401000-0x0000000000405000-memory.dmp

Filesize
16KB

Download
memory/1864-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1864-11-0x00000000001A0000-0x00000000001A1000-memory.dmp

Filesize
4KB

Download
memory/2076-35-0x0000000001070000-0x0000000001071000-memory.dmp

Filesize
4KB

Download
memory/2076-36-0x0000000001050000-0x0000000001051000-memory.dmp

Filesize
4KB

Download
memory/2248-26-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2248-30-0x0000000000910000-0x0000000000911000-memory.dmp

Filesize
4KB

Download
memory/2248-32-0x0000000077C02000-0x0000000077C03000-memory.dmp

Filesize
4KB

Download
memory/2248-37-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/2248-39-0x0000000077C02000-0x0000000077C03000-memory.dmp

Filesize
4KB

Download
memory/2248-38-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2248-40-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2248-41-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2248-33-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

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