ramnit | d14f995d58f1131696f38b16720fb2643aa9c87e5672a40c8eb329f6bd1cb38d

General

Target

d14f995d58f1131696f38b16720fb2643aa9c87e5672a40c8eb329f6bd1cb38d.dll
Size

823KB
MD5

8306159b2ed68888bc5cec92f92ec5e0
SHA1

7956a73229003cda1340b5d5dc7776625a92ae7a
SHA256

d14f995d58f1131696f38b16720fb2643aa9c87e5672a40c8eb329f6bd1cb38d
SHA512

1ab7f1dfb816213a7166bed6275695639444a42ba3b81a712c87c50dfd3852195e69af40ea955e861480a79658b2c01faf8945203c6f2ecbcd8a60a1b7c00ded
SSDEEP

24576:QL5/rmRsmDWDPNuFhPvYrpLYHSfcoopooLY9Nu0g4:aK5hPILYHSfeY9ng

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
3608	rundll32Srv.exe
464	DesktopLayer.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0001000000022e6a-134.dat	upx
behavioral2/files/0x0001000000022e6a-135.dat	upx
behavioral2/files/0x0002000000022e6b-137.dat	upx
behavioral2/memory/464-140-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/3608-139-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/files/0x0002000000022e6b-138.dat	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\pxC2A9.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
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2071409355"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "377095169"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2071409355"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{9E029AC4-7562-11ED-A0EE-F63A18EFECFD} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31000943"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31000943"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
464	DesktopLayer.exe
464	DesktopLayer.exe
464	DesktopLayer.exe
464	DesktopLayer.exe
464	DesktopLayer.exe
464	DesktopLayer.exe
464	DesktopLayer.exe
464	DesktopLayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3480	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3480	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3480	iexplore.exe
3480	iexplore.exe
916	IEXPLORE.EXE
916	IEXPLORE.EXE
916	IEXPLORE.EXE
916	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4548 wrote to memory of 636	4548	rundll32.exe	82
PID 4548 wrote to memory of 636	4548	rundll32.exe	82
PID 4548 wrote to memory of 636	4548	rundll32.exe	82
PID 636 wrote to memory of 3608	636	rundll32.exe	83
PID 636 wrote to memory of 3608	636	rundll32.exe	83
PID 636 wrote to memory of 3608	636	rundll32.exe	83
PID 3608 wrote to memory of 464	3608	rundll32Srv.exe	84
PID 3608 wrote to memory of 464	3608	rundll32Srv.exe	84
PID 3608 wrote to memory of 464	3608	rundll32Srv.exe	84
PID 464 wrote to memory of 3480	464	DesktopLayer.exe	85
PID 464 wrote to memory of 3480	464	DesktopLayer.exe	85
PID 3480 wrote to memory of 916	3480	iexplore.exe	86
PID 3480 wrote to memory of 916	3480	iexplore.exe	86
PID 3480 wrote to memory of 916	3480	iexplore.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\d14f995d58f1131696f38b16720fb2643aa9c87e5672a40c8eb329f6bd1cb38d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4548
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\d14f995d58f1131696f38b16720fb2643aa9c87e5672a40c8eb329f6bd1cb38d.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:636
- - 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:3608
  - - 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:464
    - - 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:3480
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3480 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:916

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\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

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

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/464-140-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/636-141-0x00000000751C0000-0x0000000075292000-memory.dmp

Filesize
840KB

Download
memory/3608-139-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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