ramnit | 8e672177719bf04b8591d66d5b07c6bb2986176b0d8eaea77c10c9dcde2b77f7

Analysis

max time kernel
92s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
17/04/2024, 11:51

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General

Target
8e672177719bf04b8591d66d5b07c6bb2986176b0d8eaea77c10c9dcde2b77f7.dll
Size 2.5MB
Sample240417-nz82ssfd31
SHA256 8e672177719bf04b8591d66d5b07c6bb2986176b0d8eaea77c10c9dcde2b77f7
MD5 d30f5c71d32b1c63b620dfabf6e2e0a0
SHA1 f3e4f03aaf732dd4bd346f046637844bf825633d
SHA512 ea9d07a15fba4f58597bdd3670fd4a1e38ace7ba0766f7c74adfe353f654997d81e1edb7d0953b25e5736ca03c4a6bf17b2d2c9157d2d11768015ffce5e3022d
SSDEEP 49152:Kig29oZGW4oNAamXLmYv/Mk13S4SP+Qz1RsWPD8whFTIRUHAsdrrVhHKT971PrGu:62qZGWyamXLp/Mk13SBz1qWPD8whFTIz
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
4524	rundll32Srv.exe
2912	DesktopLayer.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x00070000000233d7-3.dat	upx
behavioral2/memory/4524-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/4524-6-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2912-14-0x0000000000400000-0x000000000042E000-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\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px6477.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4548	2116	WerFault.exe	82

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2737159068"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2745753776"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31101117"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2737315137"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31101117"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "420119656"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31101117"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\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 (str)	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{CEB506A0-FCB0-11EE-B576-D636941CBDF8} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-553605503-2331009851-2137262461-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2912	DesktopLayer.exe
2912	DesktopLayer.exe
2912	DesktopLayer.exe
2912	DesktopLayer.exe
2912	DesktopLayer.exe
2912	DesktopLayer.exe
2912	DesktopLayer.exe
2912	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3420	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3420	iexplore.exe
3420	iexplore.exe
3412	IEXPLORE.EXE
3412	IEXPLORE.EXE
3412	IEXPLORE.EXE
3412	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2572 wrote to memory of 2116	2572	rundll32.exe	82
PID 2572 wrote to memory of 2116	2572	rundll32.exe	82
PID 2572 wrote to memory of 2116	2572	rundll32.exe	82
PID 2116 wrote to memory of 4524	2116	rundll32.exe	84
PID 2116 wrote to memory of 4524	2116	rundll32.exe	84
PID 2116 wrote to memory of 4524	2116	rundll32.exe	84
PID 4524 wrote to memory of 2912	4524	rundll32Srv.exe	85
PID 4524 wrote to memory of 2912	4524	rundll32Srv.exe	85
PID 4524 wrote to memory of 2912	4524	rundll32Srv.exe	85
PID 2912 wrote to memory of 3420	2912	DesktopLayer.exe	86
PID 2912 wrote to memory of 3420	2912	DesktopLayer.exe	86
PID 3420 wrote to memory of 3412	3420	iexplore.exe	90
PID 3420 wrote to memory of 3412	3420	iexplore.exe	90
PID 3420 wrote to memory of 3412	3420	iexplore.exe	90

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\8e672177719bf04b8591d66d5b07c6bb2986176b0d8eaea77c10c9dcde2b77f7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2572
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\8e672177719bf04b8591d66d5b07c6bb2986176b0d8eaea77c10c9dcde2b77f7.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:2116
- - 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:4524
  - - 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:2912
    - - 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:3420
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3420 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3412
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2116 -s 700
    3⤵
    - Program crash
    PID:4548

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2116 -ip 2116
1⤵
PID:5084

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

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Downloads

suggestions[1].en-US

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\FBEJHBLX\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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rundll32Srv.exe

Path C:\Windows\SysWOW64\rundll32Srv.exe
Size 55KB
SHA256 d1a57e19ddb9892e423248cc8ff0c4b1211d22e1ccad6111fcac218290f246f0
MD5 42bacbdf56184c2fa5fe6770857e2c2d
SHA1 521a63ee9ce2f615eda692c382b16fc1b1d57cac
SHA512 0ab916dd15278e51bccfd2ccedd80d942b0bddb9544cec3f73120780d4f7234ff7456530e1465caf3846616821d1b385b6ae58a5dff9ffe4d622902c24fd4b71
SSDEEP 1536:C+hzRsibKplyXTq8OGRnsPFG+RODTb7MXL5uXZnzE:5ROzoTq0+RO7IwnY
MD5 SHA1 SHA512 SSDEEP

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memory/2116-0-0x0000000075160000-0x00000000753E5000-memory.dmp

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memory/2116-19-0x0000000075160000-0x00000000753E5000-memory.dmp

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memory/2912-16-0x0000000077982000-0x0000000077983000-memory.dmp

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memory/2912-14-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/2912-17-0x0000000077982000-0x0000000077983000-memory.dmp

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memory/2912-13-0x0000000000560000-0x0000000000561000-memory.dmp

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memory/2912-11-0x0000000000550000-0x000000000055F000-memory.dmp

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memory/4524-4-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/4524-6-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/4524-8-0x00000000004C0000-0x00000000004CF000-memory.dmp

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