ramnit | b2be0a8fbf293f3e8916a3b8539ac03525b945f7418bd488685f143c21403a29

General

Target

b2be0a8fbf293f3e8916a3b8539ac03525b945f7418bd488685f143c21403a29.dll
Size

932KB
MD5

13cc08e9d292e2201f0b8e9627d66110
SHA1

358149010795a4d081e2d31b3383125578eaf56d
SHA256

b2be0a8fbf293f3e8916a3b8539ac03525b945f7418bd488685f143c21403a29
SHA512

36654f893f5a5d3f73a26ff1a39c52ee57111c91c2c0c6fe522e6e3bfd6cb4e7033d4058edc6ad80f5ec695bcec19a5a3449313480bf7a76c81e4f98596e68df
SSDEEP

24576:hn6jLuJPy2Od0TuSddwJPucjsta1MpKvV3:hsaPy2OdUYaU93

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
1636	rundll32Srv.exe
1684	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/0x000a0000000122fa-62.dat	upx
behavioral1/files/0x000a0000000122fa-65.dat	upx
behavioral1/memory/1636-64-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x000a0000000122fa-67.dat	upx
behavioral1/memory/1684-68-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1808	rundll32.exe
1636	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\pxEA9E.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
848	1808	WerFault.exe	28

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\LowRegistry\DontShowMeThisDialogAgain	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\Toolbar	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\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	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	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "374562262"	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\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{2AE47931-5E59-11ED-A448-E20468906380} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	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
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	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	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\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	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\Recovery\PendingRecovery	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\IntelliForms	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1684	DesktopLayer.exe
1684	DesktopLayer.exe
1684	DesktopLayer.exe
1684	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1344	iexplore.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
1808	rundll32.exe
1344	iexplore.exe
1344	iexplore.exe
872	IEXPLORE.EXE
872	IEXPLORE.EXE
872	IEXPLORE.EXE
872	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1096 wrote to memory of 1808	1096	rundll32.exe	28
PID 1096 wrote to memory of 1808	1096	rundll32.exe	28
PID 1096 wrote to memory of 1808	1096	rundll32.exe	28
PID 1096 wrote to memory of 1808	1096	rundll32.exe	28
PID 1096 wrote to memory of 1808	1096	rundll32.exe	28
PID 1096 wrote to memory of 1808	1096	rundll32.exe	28
PID 1096 wrote to memory of 1808	1096	rundll32.exe	28
PID 1808 wrote to memory of 1636	1808	rundll32.exe	29
PID 1808 wrote to memory of 1636	1808	rundll32.exe	29
PID 1808 wrote to memory of 1636	1808	rundll32.exe	29
PID 1808 wrote to memory of 1636	1808	rundll32.exe	29
PID 1808 wrote to memory of 848	1808	rundll32.exe	30
PID 1808 wrote to memory of 848	1808	rundll32.exe	30
PID 1808 wrote to memory of 848	1808	rundll32.exe	30
PID 1808 wrote to memory of 848	1808	rundll32.exe	30
PID 1636 wrote to memory of 1684	1636	rundll32Srv.exe	31
PID 1636 wrote to memory of 1684	1636	rundll32Srv.exe	31
PID 1636 wrote to memory of 1684	1636	rundll32Srv.exe	31
PID 1636 wrote to memory of 1684	1636	rundll32Srv.exe	31
PID 1684 wrote to memory of 1344	1684	DesktopLayer.exe	32
PID 1684 wrote to memory of 1344	1684	DesktopLayer.exe	32
PID 1684 wrote to memory of 1344	1684	DesktopLayer.exe	32
PID 1684 wrote to memory of 1344	1684	DesktopLayer.exe	32
PID 1344 wrote to memory of 872	1344	iexplore.exe	34
PID 1344 wrote to memory of 872	1344	iexplore.exe	34
PID 1344 wrote to memory of 872	1344	iexplore.exe	34
PID 1344 wrote to memory of 872	1344	iexplore.exe	34

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b2be0a8fbf293f3e8916a3b8539ac03525b945f7418bd488685f143c21403a29.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1096
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b2be0a8fbf293f3e8916a3b8539ac03525b945f7418bd488685f143c21403a29.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1808
- - 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:1636
  - - 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:1684
    - - 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:1344
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1344 CREDAT:275457 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:872
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 248
    3⤵
    - Program crash
    PID:848

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\CNID1CCO.txt

Filesize
603B

MD5
f3cab5175980219c7ba2559aff8a9a66

SHA1
11c5a26adc139996317bd2ba76f6d9b8bc0bd17d

SHA256
6509522c145bd57c26f4dcb8f490124028f2335e0be823d149731dafc0497ca0

SHA512
6971443cb95958e1a1c6b8d0700dea7554e71c74d842bc4f7f7546daabe6967efcac3ccbfb3aeca6a0b6c99c253a5175d440f02a29ad87ccff534c1052565a96

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/1636-64-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1684-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1808-69-0x0000000010000000-0x00000000100F0000-memory.dmp

Filesize
960KB

Download
memory/1808-70-0x0000000000180000-0x00000000001AE000-memory.dmp

Filesize
184KB

Download
memory/1808-55-0x0000000075211000-0x0000000075213000-memory.dmp

Filesize
8KB

Download

Analysis

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