ramnit | e33fdddf32359a0c4493b82a2b3b51d05f09913cd048f861a9f2793628221984

General

Target

e33fdddf32359a0c4493b82a2b3b51d05f09913cd048f861a9f2793628221984.dll
Size

120KB
MD5

1b8ac4723c74781001ac7bf42606546b
SHA1

3a0fb345504586e9c03007678ea45ebf99854f18
SHA256

e33fdddf32359a0c4493b82a2b3b51d05f09913cd048f861a9f2793628221984
SHA512

a76bc91c0bf97677f8ebfb7339b51eed82b980d10cadca1417f21c1dfd3cc737b8a4e7ebb2eb9002ba48ee054575a8498baa6c1e267c4c2b64b996d093a03743
SSDEEP

3072:q61Ye3TaEu2CoCcn3zO7A4D8X4A59gzo+9:nTa12CoCckAe8XQzo+9

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
1972	rundll32Srv.exe
2016	DesktopLayer.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x00140000000054ab-56.dat	upx
behavioral1/files/0x00140000000054ab-58.dat	upx
behavioral1/files/0x00140000000054ab-60.dat	upx
behavioral1/files/0x00070000000149b7-61.dat	upx
behavioral1/memory/1972-65-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x00070000000149b7-64.dat	upx
behavioral1/files/0x00070000000149b7-67.dat	upx
behavioral1/memory/2016-68-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1956	rundll32.exe
1972	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\px66A0.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
1920	1956	WerFault.exe	27

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376578249"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{0B4BE3C1-70AF-11ED-A645-626C2AE6DC56} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2016	DesktopLayer.exe
2016	DesktopLayer.exe
2016	DesktopLayer.exe
2016	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1716	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1716	iexplore.exe
1716	iexplore.exe
1736	IEXPLORE.EXE
1736	IEXPLORE.EXE
1736	IEXPLORE.EXE
1736	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 1956	1936	rundll32.exe	27
PID 1936 wrote to memory of 1956	1936	rundll32.exe	27
PID 1936 wrote to memory of 1956	1936	rundll32.exe	27
PID 1936 wrote to memory of 1956	1936	rundll32.exe	27
PID 1936 wrote to memory of 1956	1936	rundll32.exe	27
PID 1936 wrote to memory of 1956	1936	rundll32.exe	27
PID 1936 wrote to memory of 1956	1936	rundll32.exe	27
PID 1956 wrote to memory of 1972	1956	rundll32.exe	28
PID 1956 wrote to memory of 1972	1956	rundll32.exe	28
PID 1956 wrote to memory of 1972	1956	rundll32.exe	28
PID 1956 wrote to memory of 1972	1956	rundll32.exe	28
PID 1956 wrote to memory of 1920	1956	rundll32.exe	29
PID 1956 wrote to memory of 1920	1956	rundll32.exe	29
PID 1956 wrote to memory of 1920	1956	rundll32.exe	29
PID 1956 wrote to memory of 1920	1956	rundll32.exe	29
PID 1972 wrote to memory of 2016	1972	rundll32Srv.exe	30
PID 1972 wrote to memory of 2016	1972	rundll32Srv.exe	30
PID 1972 wrote to memory of 2016	1972	rundll32Srv.exe	30
PID 1972 wrote to memory of 2016	1972	rundll32Srv.exe	30
PID 2016 wrote to memory of 1716	2016	DesktopLayer.exe	31
PID 2016 wrote to memory of 1716	2016	DesktopLayer.exe	31
PID 2016 wrote to memory of 1716	2016	DesktopLayer.exe	31
PID 2016 wrote to memory of 1716	2016	DesktopLayer.exe	31
PID 1716 wrote to memory of 1736	1716	iexplore.exe	33
PID 1716 wrote to memory of 1736	1716	iexplore.exe	33
PID 1716 wrote to memory of 1736	1716	iexplore.exe	33
PID 1716 wrote to memory of 1736	1716	iexplore.exe	33

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e33fdddf32359a0c4493b82a2b3b51d05f09913cd048f861a9f2793628221984.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e33fdddf32359a0c4493b82a2b3b51d05f09913cd048f861a9f2793628221984.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1956
- - 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:1972
  - - 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:2016
    - - 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:1716
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1716 CREDAT:275457 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1736
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1956 -s 228
    3⤵
    - Program crash
    PID:1920

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\M3E5KZG9.txt

Filesize
603B

MD5
b06d14271a5246bf45b5296a8eaad273

SHA1
def8281220b685de12d8e3014aa084f7dff02d24

SHA256
e83d88ecebceafb93640c9c14c1d3337327f2bc10717d9c8d071da3fb2e196ce

SHA512
283e4b4ea528db3214e61ee9a214484c3545ab4cf83c03bb07ab94db680d14ea69f53db9506a74e3ceea2eccc9444d768799ecf240e44af151c63ff4e35487e6

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/1956-69-0x000000006D100000-0x000000006D11E000-memory.dmp

Filesize
120KB

Download
memory/1956-70-0x0000000000170000-0x000000000019E000-memory.dmp

Filesize
184KB

Download
memory/1956-55-0x0000000075571000-0x0000000075573000-memory.dmp

Filesize
8KB

Download
memory/1972-65-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2016-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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