ramnit | 7830cf5e6d6452c6c90887fbfcbf8172574ae668822a3be5ba9e2893a7563f07

General

Target

7830cf5e6d6452c6c90887fbfcbf8172574ae668822a3be5ba9e2893a7563f07.dll
Size

96KB
MD5

69b96a1832ade1ea97d60db72947a930
SHA1

f5636d22d552f5795ce6bf260b22d7d5d2a1820d
SHA256

7830cf5e6d6452c6c90887fbfcbf8172574ae668822a3be5ba9e2893a7563f07
SHA512

e98de2ed252578754c93a1a654173d326fe25f9b4172655cf54281988c4c91f65da413d3d1afcaf9137253232edee423bf355cd24658d292b6d44a4b81e2d561
SSDEEP

1536:9ibToqp78CcMC4nqx5RLc0xuqSw9hHM0vZP3t8DlfCTKF1lrdhu:9ibTTp78CcMuLoqZ9hHrhaRaeNu

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
908	rundll32Srv.exe
1388	DesktopLayer.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000c0000000054a8-56.dat	upx
behavioral1/files/0x000c0000000054a8-58.dat	upx
behavioral1/files/0x000c0000000054a8-60.dat	upx
behavioral1/files/0x000a0000000122ef-61.dat	upx
behavioral1/files/0x000a0000000122ef-64.dat	upx
behavioral1/memory/908-65-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x000a0000000122ef-67.dat	upx
behavioral1/memory/1388-68-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1832	rundll32.exe
908	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\pxF3E1.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
952	1832	WerFault.exe	28

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{11B923C1-490A-11ED-8DB1-7A3897842414} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "372219294"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1388	DesktopLayer.exe
1388	DesktopLayer.exe
1388	DesktopLayer.exe
1388	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1212	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1212	iexplore.exe
1212	iexplore.exe
556	IEXPLORE.EXE
556	IEXPLORE.EXE
556	IEXPLORE.EXE
556	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1960 wrote to memory of 1832	1960	rundll32.exe	28
PID 1960 wrote to memory of 1832	1960	rundll32.exe	28
PID 1960 wrote to memory of 1832	1960	rundll32.exe	28
PID 1960 wrote to memory of 1832	1960	rundll32.exe	28
PID 1960 wrote to memory of 1832	1960	rundll32.exe	28
PID 1960 wrote to memory of 1832	1960	rundll32.exe	28
PID 1960 wrote to memory of 1832	1960	rundll32.exe	28
PID 1832 wrote to memory of 908	1832	rundll32.exe	29
PID 1832 wrote to memory of 908	1832	rundll32.exe	29
PID 1832 wrote to memory of 908	1832	rundll32.exe	29
PID 1832 wrote to memory of 908	1832	rundll32.exe	29
PID 908 wrote to memory of 1388	908	rundll32Srv.exe	31
PID 908 wrote to memory of 1388	908	rundll32Srv.exe	31
PID 908 wrote to memory of 1388	908	rundll32Srv.exe	31
PID 908 wrote to memory of 1388	908	rundll32Srv.exe	31
PID 1832 wrote to memory of 952	1832	rundll32.exe	30
PID 1832 wrote to memory of 952	1832	rundll32.exe	30
PID 1832 wrote to memory of 952	1832	rundll32.exe	30
PID 1832 wrote to memory of 952	1832	rundll32.exe	30
PID 1388 wrote to memory of 1212	1388	DesktopLayer.exe	32
PID 1388 wrote to memory of 1212	1388	DesktopLayer.exe	32
PID 1388 wrote to memory of 1212	1388	DesktopLayer.exe	32
PID 1388 wrote to memory of 1212	1388	DesktopLayer.exe	32
PID 1212 wrote to memory of 556	1212	iexplore.exe	34
PID 1212 wrote to memory of 556	1212	iexplore.exe	34
PID 1212 wrote to memory of 556	1212	iexplore.exe	34
PID 1212 wrote to memory of 556	1212	iexplore.exe	34

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7830cf5e6d6452c6c90887fbfcbf8172574ae668822a3be5ba9e2893a7563f07.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1960
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7830cf5e6d6452c6c90887fbfcbf8172574ae668822a3be5ba9e2893a7563f07.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1832
- - 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:908
  - - 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:1388
    - - 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:1212
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1212 CREDAT:275457 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:556
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1832 -s 228
    3⤵
    - Program crash
    PID:952

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\GPU4U2GS.txt

Filesize
608B

MD5
7923a8812f91e43393c400e0cd631757

SHA1
c48a8a6c629cf788712fe7d8188b29e7da7d33fb

SHA256
d1bd5fe659aa5accfdc5bc9059ca3d1df50ed448ff9310cbc89228dcc58a7212

SHA512
f25f199b1d5a72c75aeddcf9e0a86f6e4a9aada9d68f3947af6ccb45319224991b301464318202717b27567bd052abb2f47fb744a6ff560494e93bd112b74666

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/908-65-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1388-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1832-69-0x000000006D080000-0x000000006D098000-memory.dmp

Filesize
96KB

Download
memory/1832-70-0x0000000000150000-0x000000000017E000-memory.dmp

Filesize
184KB

Download
memory/1832-55-0x00000000751A1000-0x00000000751A3000-memory.dmp

Filesize
8KB

Download

Analysis

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