ramnit | 2691942c5687969cd4137c99628fb566377c3cb16ddca078b7ccdcb1332e0b15

General

Target

nizanmfts_fr/load.dll
Size

3.7MB
MD5

bfdd804c8e727b5ca53fd6d859a9975a
SHA1

23e0aaf72c3d10374942d58d42bcf5e35be2a92e
SHA256

57bc0df44cdd059fb169f6754d1065d9f639d8c78f126fe4f3acc7a9811841e5
SHA512

b851d60b2a7e60526a4006a25090d282bbef88064c8fb4bb59159cc3672af4ac93ee50cc0c68072f93555efab83723da38444918302a5e4c95fff57da525d929

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

Processes:

rundll32Srv.exeDesktopLayer.exe

pid process

4768 rundll32Srv.exe
3876 DesktopLayer.exe

pid	process
4768	rundll32Srv.exe
3876	DesktopLayer.exe

UPX packed file 7 IoCs

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

upx

Processes:

resource	yara_rule
C:\Windows\SysWOW64\rundll32Srv.exe	upx
C:\Windows\SysWOW64\rundll32Srv.exe	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral8/memory/4768-136-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral8/memory/3876-138-0x0000000000400000-0x000000000042E000-memory.dmp	upx
C:\Program Files (x86)\Microsoft\DesktopLayer.exe	upx
behavioral8/memory/3876-140-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File created C:\Windows\SysWOW64\rundll32Srv.exe rundll32.exe

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

Drops file in Program Files directory 3 IoCs

Processes:

rundll32Srv.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Microsoft\pxD44C.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 18 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{92B40011-ED6E-11EC-B274-DA7DD4493A95} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "362146945"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

DesktopLayer.exe

pid	process
3876	DesktopLayer.exe
3876	DesktopLayer.exe
3876	DesktopLayer.exe
3876	DesktopLayer.exe
3876	DesktopLayer.exe
3876	DesktopLayer.exe
3876	DesktopLayer.exe
3876	DesktopLayer.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

iexplore.exe

pid process

2368 iexplore.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 4196 rundll32.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

2368 iexplore.exe

pid	process
2368	iexplore.exe

description	pid	process
Token: SeDebugPrivilege	4196	rundll32.exe

pid	process
2368	iexplore.exe

Suspicious use of SetWindowsHookEx 49 IoCs

Processes:

rundll32.exeiexplore.exeIEXPLORE.EXE

pid	process
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
4196	rundll32.exe
2368	iexplore.exe
2368	iexplore.exe
2480	IEXPLORE.EXE
2480	IEXPLORE.EXE
2480	IEXPLORE.EXE
2480	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

rundll32.exerundll32.exerundll32Srv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 4188 wrote to memory of 4196	4188	rundll32.exe	rundll32.exe
PID 4188 wrote to memory of 4196	4188	rundll32.exe	rundll32.exe
PID 4188 wrote to memory of 4196	4188	rundll32.exe	rundll32.exe
PID 4196 wrote to memory of 4768	4196	rundll32.exe	rundll32Srv.exe
PID 4196 wrote to memory of 4768	4196	rundll32.exe	rundll32Srv.exe
PID 4196 wrote to memory of 4768	4196	rundll32.exe	rundll32Srv.exe
PID 4768 wrote to memory of 3876	4768	rundll32Srv.exe	DesktopLayer.exe
PID 4768 wrote to memory of 3876	4768	rundll32Srv.exe	DesktopLayer.exe
PID 4768 wrote to memory of 3876	4768	rundll32Srv.exe	DesktopLayer.exe
PID 3876 wrote to memory of 2368	3876	DesktopLayer.exe	iexplore.exe
PID 3876 wrote to memory of 2368	3876	DesktopLayer.exe	iexplore.exe
PID 2368 wrote to memory of 2480	2368	iexplore.exe	IEXPLORE.EXE
PID 2368 wrote to memory of 2480	2368	iexplore.exe	IEXPLORE.EXE
PID 2368 wrote to memory of 2480	2368	iexplore.exe	IEXPLORE.EXE

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\nizanmfts_fr\load.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4188
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\nizanmfts_fr\load.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4196
- - 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:4768
  - - 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:3876
    - - 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:2368
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2368 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:2480

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

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/3876-134-0x0000000000000000-mapping.dmp

Download
memory/3876-138-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3876-140-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4196-130-0x0000000000000000-mapping.dmp

Download
memory/4196-137-0x0000000010000000-0x00000000103DA000-memory.dmp

Filesize
3.9MB

Download
memory/4196-141-0x0000000010000000-0x00000000103DA000-memory.dmp

Filesize
3.9MB

Download
memory/4768-131-0x0000000000000000-mapping.dmp

Download
memory/4768-136-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads