ramnit | 56784c281beab1fa1322a18448bc05fea4b5af795253c1f761a033b373e4f0d8

General

Target
56784c281beab1fa1322a18448bc05fea4b5af795253c1f761a033b373e4f0d8.dll
Size 276KB
Sample221001-wfeylshch4
SHA256 56784c281beab1fa1322a18448bc05fea4b5af795253c1f761a033b373e4f0d8
MD5 469ba9794bf6f1fa0fefccccfc5029f0
SHA1 d2af6342f7cbd647649f49b69eedb731e139995d
SHA512 86dd66dd88a1f5e141b239ca4aa6ce2318122f08e65528079711f9ae24a1794e302b0ff627b22bbbe261531f18dc07d4f975b65d345ff9b59f3df1e5cae8b563
SSDEEP 3072:ANJOtymoYgSNDQRRX0bpz88j70rLJzko4S+2da6CMihsXUkVjHu/IYXu7v2:ANJOtymoqNURV0Ae2Y6CJY3VrucL
MD5 SHA1 SHA512 SSDEEP

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
1848	rundll32Srv.exe
3508	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000a000000022f71-134.dat	upx
behavioral2/files/0x000a000000022f71-135.dat	upx
behavioral2/files/0x0007000000022f75-139.dat	upx
behavioral2/memory/1848-138-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x0007000000022f75-137.dat	upx
behavioral2/memory/3508-140-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxEE6C.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Modifies Internet Explorer settings 1 TTPs 25 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "371696259"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{47A05B91-4448-11ED-AECB-F639923F7CA1} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30988373"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "519941787"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30988373"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "519941787"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3508	DesktopLayer.exe
3508	DesktopLayer.exe
3508	DesktopLayer.exe
3508	DesktopLayer.exe
3508	DesktopLayer.exe
3508	DesktopLayer.exe
3508	DesktopLayer.exe
3508	DesktopLayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2296	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2296	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
2296	iexplore.exe
2296	iexplore.exe
3764	IEXPLORE.EXE
3764	IEXPLORE.EXE
3764	IEXPLORE.EXE
3764	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 5008 wrote to memory of 4888	5008	rundll32.exe	81
PID 5008 wrote to memory of 4888	5008	rundll32.exe	81
PID 5008 wrote to memory of 4888	5008	rundll32.exe	81
PID 4888 wrote to memory of 1848	4888	rundll32.exe	82
PID 4888 wrote to memory of 1848	4888	rundll32.exe	82
PID 4888 wrote to memory of 1848	4888	rundll32.exe	82
PID 1848 wrote to memory of 3508	1848	rundll32Srv.exe	83
PID 1848 wrote to memory of 3508	1848	rundll32Srv.exe	83
PID 1848 wrote to memory of 3508	1848	rundll32Srv.exe	83
PID 3508 wrote to memory of 2296	3508	DesktopLayer.exe	84
PID 3508 wrote to memory of 2296	3508	DesktopLayer.exe	84
PID 2296 wrote to memory of 3764	2296	iexplore.exe	85
PID 2296 wrote to memory of 3764	2296	iexplore.exe	85
PID 2296 wrote to memory of 3764	2296	iexplore.exe	85

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\56784c281beab1fa1322a18448bc05fea4b5af795253c1f761a033b373e4f0d8.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5008
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\56784c281beab1fa1322a18448bc05fea4b5af795253c1f761a033b373e4f0d8.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:4888
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of WriteProcessMemory
    PID:1848
  - - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
      "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:3508
    - - 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:2296
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2296 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3764

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

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Downloads

DesktopLayer.exe

Path C:\Program Files (x86)\Microsoft\DesktopLayer.exe
Size 55KB
SHA256 fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
MD5 ff5e1f27193ce51eec318714ef038bef
SHA1 b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA512 c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
SSDEEP 1536:Q+hzRsibKplyXTq8OGRnsPFG+RODTb7MXL5uXZnzE:bROzoTq0+RO7IwnY
MD5 SHA1 SHA512 SSDEEP

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DesktopLayer.exe

Path C:\Program Files (x86)\Microsoft\DesktopLayer.exe
Size 55KB
SHA256 fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
MD5 ff5e1f27193ce51eec318714ef038bef
SHA1 b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA512 c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
SSDEEP 1536:Q+hzRsibKplyXTq8OGRnsPFG+RODTb7MXL5uXZnzE:bROzoTq0+RO7IwnY
MD5 SHA1 SHA512 SSDEEP

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rundll32Srv.exe

Path C:\Windows\SysWOW64\rundll32Srv.exe
Size 55KB
SHA256 fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
MD5 ff5e1f27193ce51eec318714ef038bef
SHA1 b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA512 c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
SSDEEP 1536:Q+hzRsibKplyXTq8OGRnsPFG+RODTb7MXL5uXZnzE:bROzoTq0+RO7IwnY
MD5 SHA1 SHA512 SSDEEP

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rundll32Srv.exe

Path C:\Windows\SysWOW64\rundll32Srv.exe
Size 55KB
SHA256 fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
MD5 ff5e1f27193ce51eec318714ef038bef
SHA1 b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA512 c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
SSDEEP 1536:Q+hzRsibKplyXTq8OGRnsPFG+RODTb7MXL5uXZnzE:bROzoTq0+RO7IwnY
MD5 SHA1 SHA512 SSDEEP

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memory/1848-138-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/3508-140-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/3508-141-0x0000000000470000-0x000000000047F000-memory.dmp

Download

memory/3508-142-0x0000000000470000-0x000000000047F000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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