ramnit | 40f53d66470357c900f44fb4273b8a48b0258b652e082edcb8a511c2be85a43a

Analysis

max time kernel
143s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
04/05/2024, 12:31

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General

Target
2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnit.exe
Size 1.8MB
Sample240504-pp3ygagg82
SHA256 40f53d66470357c900f44fb4273b8a48b0258b652e082edcb8a511c2be85a43a
MD5 3b9be6996a25c941ede43f7e288cdea3
SHA1 0d86b4e793e1af36477d3f37c10d8aa809142c6e
SHA512 e931196e211723ea0aa797bc235ed912ea25137a21a8adce11710ddd1b1e4380fa072c2e0dcb1e89eda71fa797a300bd47a7a4a3f5b74920e6459fac132739fd
SSDEEP 49152:sFvOyOV0AdXGwfhkmxj7Ubqhy/GSCyUTdP8SjJSVl7g+DpRHUeF4FI:sFXOV0Ad2wWmxj7Xhy/GSCyGdP8Sj3+5
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/files/0x0006000000023305-3.dat	UPX
behavioral2/memory/2604-12-0x0000000000400000-0x000000000042E000-memory.dmp	UPX
behavioral2/memory/2604-14-0x0000000000400000-0x000000000042E000-memory.dmp	UPX
behavioral2/memory/5004-4-0x0000000000400000-0x000000000042E000-memory.dmp	UPX
behavioral2/memory/224-16-0x0000000000CB0000-0x0000000000E8B000-memory.dmp	UPX

Executes dropped EXE 2 IoCs

pid	Process
5004	2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnitSrv.exe
2604	DesktopLayer.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0006000000023305-3.dat	upx
behavioral2/memory/2604-12-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2604-14-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/5004-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnitSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px4D93.tmp	2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnitSrv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnitSrv.exe

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31104543"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "107549763"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "150674938"	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31104543"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31104543"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{31EC73EB-0A12-11EF-B826-562545111C41} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "107549763"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "421590848"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\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
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2604	DesktopLayer.exe
2604	DesktopLayer.exe
2604	DesktopLayer.exe
2604	DesktopLayer.exe
2604	DesktopLayer.exe
2604	DesktopLayer.exe
2604	DesktopLayer.exe
2604	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
5048	iexplore.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
224	2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnit.exe
224	2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnit.exe
5048	iexplore.exe
5048	iexplore.exe
4752	IEXPLORE.EXE
4752	IEXPLORE.EXE
4752	IEXPLORE.EXE
4752	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 224 wrote to memory of 5004	224	2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnit.exe	85
PID 224 wrote to memory of 5004	224	2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnit.exe	85
PID 224 wrote to memory of 5004	224	2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnit.exe	85
PID 5004 wrote to memory of 2604	5004	2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnitSrv.exe	86
PID 5004 wrote to memory of 2604	5004	2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnitSrv.exe	86
PID 5004 wrote to memory of 2604	5004	2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnitSrv.exe	86
PID 2604 wrote to memory of 5048	2604	DesktopLayer.exe	87
PID 2604 wrote to memory of 5048	2604	DesktopLayer.exe	87
PID 5048 wrote to memory of 4752	5048	iexplore.exe	88
PID 5048 wrote to memory of 4752	5048	iexplore.exe	88
PID 5048 wrote to memory of 4752	5048	iexplore.exe	88

C:\Users\Admin\AppData\Local\Temp\2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnit.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnit.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:224
- C:\Users\Admin\AppData\Local\Temp\2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnitSrv.exe
  C:\Users\Admin\AppData\Local\Temp\2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnitSrv.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:5004
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:2604
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:5048
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:5048 CREDAT:17410 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4752

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

7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Size 471B
SHA256 72c791b342a217d83eb625194c430bc6778ecffa8fdf0f5a9dc0e72a71d33241
MD5 db1d00c8d4aed9e23477029535924cda
SHA1 2c65908ad49ae34035a3212c7c8c32072be706b2
SHA512 d350043d9e26fbf5ce31de0b929201fdb00195da2ce25a1f8778c728adca9530f2c5f111fbe1d44e55078ac89fab5b07394b30e175898a71e54e3b51c3a46dff
MD5 SHA1 SHA512

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7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Size 404B
SHA256 af36d8145394af857a719cc247854eaecd6163b43f5a5d4eb579b30e6b88d799
MD5 761929ca185f91cb07aefc8c70d4f021
SHA1 5765f29a863bd98a1e074baee6efd7770de2df86
SHA512 e13faf171f054cd8119ecf6daaca68bb193a7aa76a03a8ea894978f0f940a5b38d46a1baa92385e1a0a8f4b00bdf58e30b5ed7e122ddd9ed7716b109128e1b21
MD5 SHA1 SHA512

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suggestions[1].en-US

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\YB09K3UP\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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2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnitSrv.exe

Path C:\Users\Admin\AppData\Local\Temp\2024-05-04_3b9be6996a25c941ede43f7e288cdea3_mafia_ramnitSrv.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/224-1-0x0000000000CB0000-0x0000000000E8B000-memory.dmp

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memory/224-16-0x0000000000CB0000-0x0000000000E8B000-memory.dmp

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memory/2604-12-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/2604-14-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/2604-11-0x0000000000490000-0x0000000000491000-memory.dmp

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memory/5004-5-0x0000000000510000-0x000000000051F000-memory.dmp

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memory/5004-4-0x0000000000400000-0x000000000042E000-memory.dmp

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