ramnit | 0834e8d5ced0336d83a883bef5a8202dcc70cd3ba6b7697d5f58080230d4cfa4

Analysis

max time kernel
147s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240319-en
resource tags

arch:x64arch:x86image:win10v2004-20240319-enlocale:en-usos:windows10-2004-x64system
submitted
30/03/2024, 17:18

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General

Target
0834e8d5ced0336d83a883bef5a8202dcc70cd3ba6b7697d5f58080230d4cfa4.dll
Size 173KB
Sample240330-vvncvsae2v
SHA256 0834e8d5ced0336d83a883bef5a8202dcc70cd3ba6b7697d5f58080230d4cfa4
MD5 8d884b2e4482ed9f3f9898dfa274dc45
SHA1 2e96ab2c61f2ac996c1b1b1733502c4e6dbb28b6
SHA512 bf4d90923fdc3658e44b1e1eb8e52de78ae7ac2b9902fa3e7d3326731012492b34b2aefedf3750b2b50ccb61c22a033e3486c3012a995f78e6f8e18facb4c244
SSDEEP 3072:Erkvs4Mz1kCNjqfF8A+BRGcZ5Cb5JabQA6hjye1aONkaPx7aZG:PWNjqfF8+bFA6hjt1aYTta
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

UPX dump on OEP (original entry point) 5 IoCs

resource	yara_rule
behavioral2/memory/1200-1-0x0000000010000000-0x0000000010032000-memory.dmp	UPX
behavioral2/files/0x000400000001db72-3.dat	UPX
behavioral2/memory/4104-4-0x0000000000400000-0x000000000042E000-memory.dmp	UPX
behavioral2/memory/4104-6-0x0000000000400000-0x000000000042E000-memory.dmp	UPX
behavioral2/memory/2196-15-0x0000000000400000-0x000000000042E000-memory.dmp	UPX

Executes dropped EXE 2 IoCs

pid	Process
4104	regsvr32Srv.exe
2196	DesktopLayer.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000400000001db72-3.dat	upx
behavioral2/memory/4104-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4104-6-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2196-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\regsvr32Srv.exe	regsvr32.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px7232.tmp	regsvr32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	regsvr32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	regsvr32Srv.exe

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1768938177"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31097542"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{94F5927A-EEB9-11EE-BC8C-F2E15656D031} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1779093643"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "418584108"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\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-1-5-21-817259280-2658881748-983986378-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31097542"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1768938177"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31097542"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-817259280-2658881748-983986378-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe

Modifies registry class 5 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{46B5EE7F-3B6B-4079-A756-5EFC10B1F50B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0834e8d5ced0336d83a883bef5a8202dcc70cd3ba6b7697d5f58080230d4cfa4.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{46B5EE7F-3B6B-4079-A756-5EFC10B1F50B}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{46B5EE7F-3B6B-4079-A756-5EFC10B1F50B}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{46B5EE7F-3B6B-4079-A756-5EFC10B1F50B}\ = "WmpLyrics Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{46B5EE7F-3B6B-4079-A756-5EFC10B1F50B}\InprocServer32	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2196	DesktopLayer.exe
2196	DesktopLayer.exe
2196	DesktopLayer.exe
2196	DesktopLayer.exe
2196	DesktopLayer.exe
2196	DesktopLayer.exe
2196	DesktopLayer.exe
2196	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4760	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4760	iexplore.exe
4760	iexplore.exe
3388	IEXPLORE.EXE
3388	IEXPLORE.EXE
3388	IEXPLORE.EXE
3388	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 1200	2176	regsvr32.exe	94
PID 2176 wrote to memory of 1200	2176	regsvr32.exe	94
PID 2176 wrote to memory of 1200	2176	regsvr32.exe	94
PID 1200 wrote to memory of 4104	1200	regsvr32.exe	95
PID 1200 wrote to memory of 4104	1200	regsvr32.exe	95
PID 1200 wrote to memory of 4104	1200	regsvr32.exe	95
PID 4104 wrote to memory of 2196	4104	regsvr32Srv.exe	96
PID 4104 wrote to memory of 2196	4104	regsvr32Srv.exe	96
PID 4104 wrote to memory of 2196	4104	regsvr32Srv.exe	96
PID 2196 wrote to memory of 4760	2196	DesktopLayer.exe	97
PID 2196 wrote to memory of 4760	2196	DesktopLayer.exe	97
PID 4760 wrote to memory of 3388	4760	iexplore.exe	99
PID 4760 wrote to memory of 3388	4760	iexplore.exe	99
PID 4760 wrote to memory of 3388	4760	iexplore.exe	99

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\0834e8d5ced0336d83a883bef5a8202dcc70cd3ba6b7697d5f58080230d4cfa4.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\0834e8d5ced0336d83a883bef5a8202dcc70cd3ba6b7697d5f58080230d4cfa4.dll
  2⤵
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1200
- - C:\Windows\SysWOW64\regsvr32Srv.exe
    C:\Windows\SysWOW64\regsvr32Srv.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of WriteProcessMemory
    PID:4104
  - - 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:2196
    - - 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:4760
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4760 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3388

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4148 --field-trial-handle=2264,i,1475924722205134884,16549311107360026087,262144 --variations-seed-version /prefetch:8
1⤵
PID:768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

suggestions[1].en-US

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\40QGA6IK\suggestions[1].en-US
Size 17KB
SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
MD5 5a34cb996293fde2cb7a4ac89587393a
SHA1 3c96c993500690d1a77873cd62bc639b3a10653f
SHA512 e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
SSDEEP 384:K4gN8sGygaEKfWYSJUKbO7UckxtBjCdY7mO3D0C5l+piEieDSV126ry1/XSGKwG3:K4gNFXiKfWfJ1Kockxbd7mAt5Mp5ie2F
MD5 SHA1 SHA512 SSDEEP

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regsvr32Srv.exe

Path C:\Windows\SysWOW64\regsvr32Srv.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/1200-1-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/2196-13-0x00000000004D0000-0x00000000004DF000-memory.dmp

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memory/2196-15-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/2196-14-0x00000000004E0000-0x00000000004E1000-memory.dmp

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memory/2196-17-0x00000000778A2000-0x00000000778A3000-memory.dmp

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memory/2196-16-0x00000000778A2000-0x00000000778A3000-memory.dmp

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memory/4104-4-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/4104-6-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/4104-7-0x0000000000440000-0x000000000044F000-memory.dmp

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