ramnit | 9bf3048fb5a564416b8e9eb518e420ac99fdd493ea4e68129b4c81caed3f0534

General

Target

9bf3048fb5a564416b8e9eb518e420ac99fdd493ea4e68129b4c81caed3f0534.dll
Size

172KB
MD5

4adcdd0bb81d91828681f79c5354b500
SHA1

3a64891778b54935d13a95fecf6f404734fbcb1d
SHA256

9bf3048fb5a564416b8e9eb518e420ac99fdd493ea4e68129b4c81caed3f0534
SHA512

0204735ac0163dbd13efc3f5800c2c6e6a5b58ee756e82c9a7f6130db970866e3676bab93592649e6210d5fff9325bc8b41c69697967a6d6b96f746b8e9009c4
SSDEEP

3072:cD7KlRkOpSUPwuOL8QYVo+ZkgWXTBqqWfSHHW:X8xio+ZkFXTBqQ

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
860	rundll32Srv.exe
704	DesktopLayer.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0007000000005c50-56.dat	upx
behavioral1/memory/1120-59-0x00000000001D0000-0x00000000001FE000-memory.dmp	upx
behavioral1/files/0x0007000000005c50-61.dat	upx
behavioral1/files/0x0007000000005c50-63.dat	upx
behavioral1/files/0x000a0000000122e8-64.dat	upx
behavioral1/memory/860-66-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x000a0000000122e8-67.dat	upx
behavioral1/files/0x000a0000000122e8-69.dat	upx
behavioral1/memory/704-70-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1120	rundll32.exe
860	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\px604A.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 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "371525340"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{50D378E1-42BA-11ED-A964-EAF6071D98F9} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
704	DesktopLayer.exe
704	DesktopLayer.exe
704	DesktopLayer.exe
704	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1000	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1000	iexplore.exe
1000	iexplore.exe
532	IEXPLORE.EXE
532	IEXPLORE.EXE
532	IEXPLORE.EXE
532	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1248 wrote to memory of 1120	1248	rundll32.exe	26
PID 1248 wrote to memory of 1120	1248	rundll32.exe	26
PID 1248 wrote to memory of 1120	1248	rundll32.exe	26
PID 1248 wrote to memory of 1120	1248	rundll32.exe	26
PID 1248 wrote to memory of 1120	1248	rundll32.exe	26
PID 1248 wrote to memory of 1120	1248	rundll32.exe	26
PID 1248 wrote to memory of 1120	1248	rundll32.exe	26
PID 1120 wrote to memory of 860	1120	rundll32.exe	27
PID 1120 wrote to memory of 860	1120	rundll32.exe	27
PID 1120 wrote to memory of 860	1120	rundll32.exe	27
PID 1120 wrote to memory of 860	1120	rundll32.exe	27
PID 860 wrote to memory of 704	860	rundll32Srv.exe	28
PID 860 wrote to memory of 704	860	rundll32Srv.exe	28
PID 860 wrote to memory of 704	860	rundll32Srv.exe	28
PID 860 wrote to memory of 704	860	rundll32Srv.exe	28
PID 704 wrote to memory of 1000	704	DesktopLayer.exe	29
PID 704 wrote to memory of 1000	704	DesktopLayer.exe	29
PID 704 wrote to memory of 1000	704	DesktopLayer.exe	29
PID 704 wrote to memory of 1000	704	DesktopLayer.exe	29
PID 1000 wrote to memory of 532	1000	iexplore.exe	31
PID 1000 wrote to memory of 532	1000	iexplore.exe	31
PID 1000 wrote to memory of 532	1000	iexplore.exe	31
PID 1000 wrote to memory of 532	1000	iexplore.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9bf3048fb5a564416b8e9eb518e420ac99fdd493ea4e68129b4c81caed3f0534.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1248
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9bf3048fb5a564416b8e9eb518e420ac99fdd493ea4e68129b4c81caed3f0534.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1120
- - 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:860
  - - 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:704
    - - 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:1000
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1000 CREDAT:275457 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:532

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\9UBT2NIP.txt

Filesize
601B

MD5
203b7502ea8d659f316f94b165211320

SHA1
39b8049cfb65a2cc597f3b168eeb8f3b169fe4a6

SHA256
64a6461caa0d9fc612ba9ce7f7aad97ffe4436f06f7f1a6056ec4f72b1da6b4d

SHA512
e065a37d8ce49bdf3392baeb27f97889ad4517fcaa95eb7a39457dda39846cba8fedbcd24b35341a4145fb549ef3fb9cd8849e76932c4b7c94d494841c70ceb4

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/704-65-0x0000000000000000-mapping.dmp

Download
memory/704-70-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/860-60-0x0000000000000000-mapping.dmp

Download
memory/860-66-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1120-59-0x00000000001D0000-0x00000000001FE000-memory.dmp

Filesize
184KB

Download
memory/1120-58-0x0000000074C70000-0x0000000074C9E000-memory.dmp

Filesize
184KB

Download
memory/1120-54-0x0000000000000000-mapping.dmp

Download
memory/1120-57-0x0000000074CA0000-0x0000000074CCE000-memory.dmp

Filesize
184KB

Download
memory/1120-55-0x0000000075351000-0x0000000075353000-memory.dmp

Filesize
8KB

Download

Analysis

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