ramnit | a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda

General

Target

a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda.exe
Size

489KB
MD5

036e49e0290e58f9fda1963849abb550
SHA1

a76723a0d5d24aec7b263eb8f708e8b3c7ba682b
SHA256

a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda
SHA512

a120ffcdb13ecc9d59ea553a0d568a09dc3b2d4c39d7dd7441469b5025127adefaf57253ac72f1d1da6d8b34a61d6c37ebc4bfa44f790d8b2281cbe7bb72a001
SSDEEP

12288:0mMxGXFTqVw4zS5MU49/3Y89DqzpMh0BFIQD:HXUw4zS5MU4O81ApMh0zrD

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
2040	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe
1812	DesktopLayer.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0007000000005c50-56.dat	upx
behavioral1/files/0x0007000000005c50-58.dat	upx
behavioral1/files/0x0007000000005c50-60.dat	upx
behavioral1/files/0x000b000000012329-62.dat	upx
behavioral1/memory/2040-65-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x000b000000012329-64.dat	upx
behavioral1/files/0x000b000000012329-67.dat	upx
behavioral1/memory/1812-68-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1164	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda.exe
2040	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px4E21.tmp	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.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\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	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\Recovery\AdminActive	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\DomainSuggestion\FileNames	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\Recovery\PendingRecovery	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\IETld\LowMic	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\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\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\GPU	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
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "374562484"	iexplore.exe
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\LowRegistry\DontShowMeThisDialogAgain	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
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{B1714461-5E59-11ED-90F1-D6AAFEFD221A} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	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\Main\WindowsSearch	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
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1812	DesktopLayer.exe
1812	DesktopLayer.exe
1812	DesktopLayer.exe
1812	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1596	iexplore.exe

Suspicious use of SetWindowsHookEx 7 IoCs

pid	Process
1164	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda.exe
1596	iexplore.exe
1596	iexplore.exe
1152	IEXPLORE.EXE
1152	IEXPLORE.EXE
1152	IEXPLORE.EXE
1152	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1164 wrote to memory of 2040	1164	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda.exe	27
PID 1164 wrote to memory of 2040	1164	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda.exe	27
PID 1164 wrote to memory of 2040	1164	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda.exe	27
PID 1164 wrote to memory of 2040	1164	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda.exe	27
PID 2040 wrote to memory of 1812	2040	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe	28
PID 2040 wrote to memory of 1812	2040	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe	28
PID 2040 wrote to memory of 1812	2040	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe	28
PID 2040 wrote to memory of 1812	2040	a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe	28
PID 1812 wrote to memory of 1596	1812	DesktopLayer.exe	29
PID 1812 wrote to memory of 1596	1812	DesktopLayer.exe	29
PID 1812 wrote to memory of 1596	1812	DesktopLayer.exe	29
PID 1812 wrote to memory of 1596	1812	DesktopLayer.exe	29
PID 1596 wrote to memory of 1152	1596	iexplore.exe	31
PID 1596 wrote to memory of 1152	1596	iexplore.exe	31
PID 1596 wrote to memory of 1152	1596	iexplore.exe	31
PID 1596 wrote to memory of 1152	1596	iexplore.exe	31

C:\Users\Admin\AppData\Local\Temp\a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda.exe
"C:\Users\Admin\AppData\Local\Temp\a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281eda.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1164
- C:\Users\Admin\AppData\Local\Temp\a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe
  C:\Users\Admin\AppData\Local\Temp\a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2040
- - C:\Program Files (x86)\Microsoft\DesktopLayer.exe
    "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:1812
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:1596
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1596 CREDAT:275457 /prefetch:2
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1152

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\Local\Temp\a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Local\Temp\a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\781H2M2Q.txt

Filesize
606B

MD5
366802d44da3d56f1123e4848dbd6c0f

SHA1
c3c196e0e8293751fc038e5b23f6345799b833af

SHA256
efd6b839f84c85b5315f2dd93aaa274f189060c5374aa1eaed7efd9dafef127a

SHA512
8e268fd67391609089e43f8388b0dbc0b0fcf65b85b26d17f5a3422c9a5ff83becae46276e94387eef3936120369d1a43b96b2414b99fe840e0f73ff5c0c8bbe

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

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
\Users\Admin\AppData\Local\Temp\a4f3576c67c32150e0a7feca785efb65f7ef8c69309068640af9b72a7a281edaSrv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1164-61-0x00000000001E0000-0x0000000000261000-memory.dmp

Filesize
516KB

Download
memory/1164-54-0x0000000075C61000-0x0000000075C63000-memory.dmp

Filesize
8KB

Download
memory/1164-55-0x00000000001E0000-0x0000000000261000-memory.dmp

Filesize
516KB

Download
memory/1812-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2040-65-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

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