ramnit | 6de9db5189d1f16891d6b581572205a00e19087f5340c74d72cfdf60252e24d6

General

Target

6de9db5189d1f16891d6b581572205a00e19087f5340c74d72cfdf60252e24d6.dll
Size

292KB
MD5

192e487e2c363d7810841c9e4dc290e8
SHA1

0778158f00b83e8be52bdd737b338c43397627bd
SHA256

6de9db5189d1f16891d6b581572205a00e19087f5340c74d72cfdf60252e24d6
SHA512

9e7d8ac7fb2aaa8354b19807ad089e4be67ea947cd191e822597a4ee33d1bcc273ee8c6c59b0ae122ebb7215e888cef9840cd50cf243a270ec5060c5879a0fc1
SSDEEP

6144:dl9XgnzxOP/sFR2h+9q1kih6ibUxrp3/vIyRxkQq7T6C:dlCzcMg+9YkDiQ3/QbQuTr

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
1168	rundll32Srv.exe
1736	DesktopLayer.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000500000000b2d2-56.dat	upx
behavioral1/files/0x000500000000b2d2-58.dat	upx
behavioral1/files/0x000500000000b2d2-60.dat	upx
behavioral1/files/0x000a00000001230f-62.dat	upx
behavioral1/files/0x000a00000001230f-64.dat	upx
behavioral1/memory/1168-65-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x000a00000001230f-67.dat	upx
behavioral1/memory/1736-68-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1352-72-0x0000000074590000-0x00000000745D9000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1352	rundll32.exe
1168	rundll32Srv.exe

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\px17F5.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

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1160	1352	WerFault.exe	27

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376574766"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{F19D95C1-70A6-11ED-B63A-76C12A601AFA} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1736	DesktopLayer.exe
1736	DesktopLayer.exe
1736	DesktopLayer.exe
1736	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
588	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
588	iexplore.exe
588	iexplore.exe
1512	IEXPLORE.EXE
1512	IEXPLORE.EXE
1512	IEXPLORE.EXE
1512	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1324 wrote to memory of 1352	1324	rundll32.exe	27
PID 1324 wrote to memory of 1352	1324	rundll32.exe	27
PID 1324 wrote to memory of 1352	1324	rundll32.exe	27
PID 1324 wrote to memory of 1352	1324	rundll32.exe	27
PID 1324 wrote to memory of 1352	1324	rundll32.exe	27
PID 1324 wrote to memory of 1352	1324	rundll32.exe	27
PID 1324 wrote to memory of 1352	1324	rundll32.exe	27
PID 1352 wrote to memory of 1168	1352	rundll32.exe	28
PID 1352 wrote to memory of 1168	1352	rundll32.exe	28
PID 1352 wrote to memory of 1168	1352	rundll32.exe	28
PID 1352 wrote to memory of 1168	1352	rundll32.exe	28
PID 1352 wrote to memory of 1160	1352	rundll32.exe	29
PID 1352 wrote to memory of 1160	1352	rundll32.exe	29
PID 1352 wrote to memory of 1160	1352	rundll32.exe	29
PID 1352 wrote to memory of 1160	1352	rundll32.exe	29
PID 1168 wrote to memory of 1736	1168	rundll32Srv.exe	30
PID 1168 wrote to memory of 1736	1168	rundll32Srv.exe	30
PID 1168 wrote to memory of 1736	1168	rundll32Srv.exe	30
PID 1168 wrote to memory of 1736	1168	rundll32Srv.exe	30
PID 1736 wrote to memory of 588	1736	DesktopLayer.exe	31
PID 1736 wrote to memory of 588	1736	DesktopLayer.exe	31
PID 1736 wrote to memory of 588	1736	DesktopLayer.exe	31
PID 1736 wrote to memory of 588	1736	DesktopLayer.exe	31
PID 588 wrote to memory of 1512	588	iexplore.exe	33
PID 588 wrote to memory of 1512	588	iexplore.exe	33
PID 588 wrote to memory of 1512	588	iexplore.exe	33
PID 588 wrote to memory of 1512	588	iexplore.exe	33

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6de9db5189d1f16891d6b581572205a00e19087f5340c74d72cfdf60252e24d6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1324
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\6de9db5189d1f16891d6b581572205a00e19087f5340c74d72cfdf60252e24d6.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1352
- - C:\Windows\SysWOW64\rundll32Srv.exe
    C:\Windows\SysWOW64\rundll32Srv.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Program Files directory
    - Suspicious use of WriteProcessMemory
    PID:1168
  - - 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:1736
    - - 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:588
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:588 CREDAT:275457 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1512
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1352 -s 228
    3⤵
    - Program crash
    PID:1160

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:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\BMCN0SN2.txt

Filesize
539B

MD5
d52d7864090e1fbbc3521d60a6deab3b

SHA1
e12f60dd433b1627d35f426618255811b872ec85

SHA256
c7ade567b7c701dd2066186207615dc2c2da5295e7b0a6cb8b5012532539a61d

SHA512
93f73b6318aea59d031b9eae9ad2c32b03856d3d0a4063c9b2d368baa58f86034978cba5349b55f3adcbcba3a26a79c0d738c878096bbbf74bd7672b94bd0add

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
\Program Files (x86)\Microsoft\DesktopLayer.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1168-65-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1352-73-0x0000000074590000-0x00000000745D9000-memory.dmp

Filesize
292KB

Download
memory/1352-55-0x00000000752B1000-0x00000000752B3000-memory.dmp

Filesize
8KB

Download
memory/1352-69-0x0000000074590000-0x00000000745D9000-memory.dmp

Filesize
292KB

Download
memory/1352-70-0x0000000074540000-0x0000000074589000-memory.dmp

Filesize
292KB

Download
memory/1352-71-0x00000000001F0000-0x000000000021E000-memory.dmp

Filesize
184KB

Download
memory/1352-72-0x0000000074590000-0x00000000745D9000-memory.dmp

Filesize
292KB

Download
memory/1736-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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