ramnit | 0c2c089d9341b6c1e1511cfe02d6cc3c2bca4a2ed451a174deda6fd8cb619296

General

Target

0c2c089d9341b6c1e1511cfe02d6cc3c2bca4a2ed451a174deda6fd8cb619296.dll
Size

2.3MB
MD5

0ff3cd66f402c409e341afaceeab1d1a
SHA1

fd3aa891831d41b727a8e47c2e17c47d221e7205
SHA256

0c2c089d9341b6c1e1511cfe02d6cc3c2bca4a2ed451a174deda6fd8cb619296
SHA512

fbe1e739a5ad1472718ed7d13e6e69cb0222b7c6eeb99959c8e2e4db4113a6a12fceebaf54a7539216277aedc24416526527306cd2756d4938653e6878aeab96
SSDEEP

49152:gU3U+ZYmxjpv7x4GFM/+b8dTMNh9Wr73h7NXSWEqNJO5hYTVMCRisKEt:giU2YmxjpDx4Zo8dYNh9q73h7NXYkRim

Score

10^/10

ramnit banker 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

Executes dropped EXE 2 IoCs

pid	Process
2188	rundll32mgr.exe
5092	WaterMark.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2188-139-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2188-140-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2188-143-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/5092-152-0x0000000000400000-0x000000000045D000-memory.dmp	upx
behavioral2/memory/5092-153-0x0000000000400000-0x000000000045D000-memory.dmp	upx
behavioral2/memory/5092-154-0x0000000000400000-0x000000000045D000-memory.dmp	upx
behavioral2/memory/5092-155-0x0000000000400000-0x000000000045D000-memory.dmp	upx
behavioral2/memory/5092-156-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

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

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px201B.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 2 IoCs

pid	pid_target	Process	procid_target
4300	3704	WerFault.exe	79
1900	4640	WerFault.exe	85

Modifies Internet Explorer settings 1 TTPs 26 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "493204391"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31001157"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{3FD6EB0B-7638-11ED-B696-F6A3911CAFFB} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "493204391"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31001157"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "377186924"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
5092	WaterMark.exe
5092	WaterMark.exe
5092	WaterMark.exe
5092	WaterMark.exe
5092	WaterMark.exe
5092	WaterMark.exe
5092	WaterMark.exe
5092	WaterMark.exe
5092	WaterMark.exe
5092	WaterMark.exe
5092	WaterMark.exe
5092	WaterMark.exe
5092	WaterMark.exe
5092	WaterMark.exe
5092	WaterMark.exe
5092	WaterMark.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1400	iexplore.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5092	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1400	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1400	iexplore.exe
1400	iexplore.exe
608	IEXPLORE.EXE
608	IEXPLORE.EXE
608	IEXPLORE.EXE
608	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2188	rundll32mgr.exe
5092	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 3068 wrote to memory of 3704	3068	rundll32.exe	79
PID 3068 wrote to memory of 3704	3068	rundll32.exe	79
PID 3068 wrote to memory of 3704	3068	rundll32.exe	79
PID 3704 wrote to memory of 2188	3704	rundll32.exe	80
PID 3704 wrote to memory of 2188	3704	rundll32.exe	80
PID 3704 wrote to memory of 2188	3704	rundll32.exe	80
PID 2188 wrote to memory of 5092	2188	rundll32mgr.exe	83
PID 2188 wrote to memory of 5092	2188	rundll32mgr.exe	83
PID 2188 wrote to memory of 5092	2188	rundll32mgr.exe	83
PID 5092 wrote to memory of 4640	5092	WaterMark.exe	85
PID 5092 wrote to memory of 4640	5092	WaterMark.exe	85
PID 5092 wrote to memory of 4640	5092	WaterMark.exe	85
PID 5092 wrote to memory of 4640	5092	WaterMark.exe	85
PID 5092 wrote to memory of 4640	5092	WaterMark.exe	85
PID 5092 wrote to memory of 4640	5092	WaterMark.exe	85
PID 5092 wrote to memory of 4640	5092	WaterMark.exe	85
PID 5092 wrote to memory of 4640	5092	WaterMark.exe	85
PID 5092 wrote to memory of 4640	5092	WaterMark.exe	85
PID 5092 wrote to memory of 5008	5092	WaterMark.exe	88
PID 5092 wrote to memory of 5008	5092	WaterMark.exe	88
PID 5092 wrote to memory of 1400	5092	WaterMark.exe	89
PID 5092 wrote to memory of 1400	5092	WaterMark.exe	89
PID 1400 wrote to memory of 608	1400	iexplore.exe	90
PID 1400 wrote to memory of 608	1400	iexplore.exe	90
PID 1400 wrote to memory of 608	1400	iexplore.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0c2c089d9341b6c1e1511cfe02d6cc3c2bca4a2ed451a174deda6fd8cb619296.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3068
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\0c2c089d9341b6c1e1511cfe02d6cc3c2bca4a2ed451a174deda6fd8cb619296.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:3704
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:2188
  - - C:\Program Files (x86)\Microsoft\WaterMark.exe
      "C:\Program Files (x86)\Microsoft\WaterMark.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of UnmapMainImage
      Suspicious use of WriteProcessMemory
      PID:5092
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:4640
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4640 -s 204
        6⤵
        Program crash
        
        PID:1900
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        
        PID:5008
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:1400
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1400 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:608
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3704 -s 636
    3⤵
    - Program crash
    PID:4300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3704 -ip 3704
1⤵
PID:1896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4640 -ip 4640
1⤵
PID:2720

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

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
f3cd42733c9f17686eb97e547f595220

SHA1
63579bee2925fc4c6dc1c1d1c43548bdfb474e32

SHA256
46eeefd6ce0063d613b07a8a4765b23ae0dd30c5ee5638294c696a81da47e758

SHA512
82d426939e4d3155b7260eb9b67680652a68deebfc7391307a70647f17f8621d744389c791b1585f34b4aaf16ea309901363189b07a1962b0f3bdae3c3ef0fb4

Download Submit
C:\Program Files (x86)\Microsoft\WaterMark.exe

Filesize
92KB

MD5
f3cd42733c9f17686eb97e547f595220

SHA1
63579bee2925fc4c6dc1c1d1c43548bdfb474e32

SHA256
46eeefd6ce0063d613b07a8a4765b23ae0dd30c5ee5638294c696a81da47e758

SHA512
82d426939e4d3155b7260eb9b67680652a68deebfc7391307a70647f17f8621d744389c791b1585f34b4aaf16ea309901363189b07a1962b0f3bdae3c3ef0fb4

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

Filesize
92KB

MD5
f3cd42733c9f17686eb97e547f595220

SHA1
63579bee2925fc4c6dc1c1d1c43548bdfb474e32

SHA256
46eeefd6ce0063d613b07a8a4765b23ae0dd30c5ee5638294c696a81da47e758

SHA512
82d426939e4d3155b7260eb9b67680652a68deebfc7391307a70647f17f8621d744389c791b1585f34b4aaf16ea309901363189b07a1962b0f3bdae3c3ef0fb4

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

Filesize
92KB

MD5
f3cd42733c9f17686eb97e547f595220

SHA1
63579bee2925fc4c6dc1c1d1c43548bdfb474e32

SHA256
46eeefd6ce0063d613b07a8a4765b23ae0dd30c5ee5638294c696a81da47e758

SHA512
82d426939e4d3155b7260eb9b67680652a68deebfc7391307a70647f17f8621d744389c791b1585f34b4aaf16ea309901363189b07a1962b0f3bdae3c3ef0fb4

Download Submit
memory/2188-143-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2188-140-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2188-139-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3704-151-0x0000000008000000-0x0000000008252000-memory.dmp

Filesize
2.3MB

Download
memory/5092-152-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/5092-153-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/5092-154-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/5092-155-0x0000000000400000-0x000000000045D000-memory.dmp

Filesize
372KB

Download
memory/5092-156-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

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