ramnit | 345d574d5aeece2b190fbb296bc6b75a8853ed186d4b2d21e37db3e56a4e3e18

General

Target

345d574d5aeece2b190fbb296bc6b75a8853ed186d4b2d21e37db3e56a4e3e18.dll
Size

108KB
MD5

0002c4b6f852101d7c1de3966f1df030
SHA1

f985a6203a3e7b1a162172b9d964b9cdf35233d6
SHA256

345d574d5aeece2b190fbb296bc6b75a8853ed186d4b2d21e37db3e56a4e3e18
SHA512

db5e30e2f90ed8c28174d142a0b5db6f88714f9d5e86fadf851fe8f2fdf7aebf7af0795fc40175cb15305e49ff9c8d69707f7587b3666a4f67d3003fdbb59519
SSDEEP

3072:5Pz7YzBDQ0cMYPyptWL6ShBGl6Anu7LZoj/f4COCutnr:F7uDQuYES7LZtCOCU

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
1480	rundll32Srv.exe
1392	DesktopLayer.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x0007000000005c50-57.dat	upx
behavioral1/memory/1944-58-0x00000000000D0000-0x00000000000FE000-memory.dmp	upx
behavioral1/files/0x0007000000005c50-60.dat	upx
behavioral1/memory/1480-61-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x0007000000005c50-63.dat	upx
behavioral1/files/0x000b0000000122cc-64.dat	upx
behavioral1/memory/1480-67-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x000b0000000122cc-66.dat	upx
behavioral1/files/0x000b0000000122cc-69.dat	upx
behavioral1/memory/1392-70-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Loads dropped DLL 2 IoCs

pid	Process
1944	rundll32.exe
1480	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\pxEB2A.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\LowRegistry\DOMStorage	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 (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "372280017"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	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
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\BrowserEmulation\LowMic	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\AdminActive	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\DomainSuggestion\FileNames\	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\DomainSuggestion\FileNames	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\Zoom	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{66C48570-4997-11ED-AAA1-C6F54D7498C3} = "0"	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\InternetRegistry	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\PageSetup	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\Recovery\PendingRecovery	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\IntelliForms	iexplore.exe
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
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1392	DesktopLayer.exe
1392	DesktopLayer.exe
1392	DesktopLayer.exe
1392	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1160	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1160	iexplore.exe
1160	iexplore.exe
336	IEXPLORE.EXE
336	IEXPLORE.EXE
336	IEXPLORE.EXE
336	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 904 wrote to memory of 1944	904	rundll32.exe	26
PID 904 wrote to memory of 1944	904	rundll32.exe	26
PID 904 wrote to memory of 1944	904	rundll32.exe	26
PID 904 wrote to memory of 1944	904	rundll32.exe	26
PID 904 wrote to memory of 1944	904	rundll32.exe	26
PID 904 wrote to memory of 1944	904	rundll32.exe	26
PID 904 wrote to memory of 1944	904	rundll32.exe	26
PID 1944 wrote to memory of 1480	1944	rundll32.exe	27
PID 1944 wrote to memory of 1480	1944	rundll32.exe	27
PID 1944 wrote to memory of 1480	1944	rundll32.exe	27
PID 1944 wrote to memory of 1480	1944	rundll32.exe	27
PID 1480 wrote to memory of 1392	1480	rundll32Srv.exe	28
PID 1480 wrote to memory of 1392	1480	rundll32Srv.exe	28
PID 1480 wrote to memory of 1392	1480	rundll32Srv.exe	28
PID 1480 wrote to memory of 1392	1480	rundll32Srv.exe	28
PID 1392 wrote to memory of 1160	1392	DesktopLayer.exe	29
PID 1392 wrote to memory of 1160	1392	DesktopLayer.exe	29
PID 1392 wrote to memory of 1160	1392	DesktopLayer.exe	29
PID 1392 wrote to memory of 1160	1392	DesktopLayer.exe	29
PID 1160 wrote to memory of 336	1160	iexplore.exe	31
PID 1160 wrote to memory of 336	1160	iexplore.exe	31
PID 1160 wrote to memory of 336	1160	iexplore.exe	31
PID 1160 wrote to memory of 336	1160	iexplore.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\345d574d5aeece2b190fbb296bc6b75a8853ed186d4b2d21e37db3e56a4e3e18.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:904
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\345d574d5aeece2b190fbb296bc6b75a8853ed186d4b2d21e37db3e56a4e3e18.dll,#1
  2⤵
  - Loads dropped DLL
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1944
- - 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:1480
  - - 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:1392
    - - 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:1160
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1160 CREDAT:275457 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:336

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

Loading Replay Monitor...

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\4GWBR4GF.txt

Filesize
605B

MD5
65e535060cf6e4b2b1dd9ec701fa80c4

SHA1
f15e78630e7d1c6646208871e6847e7268928c8a

SHA256
99c8950e30a248a679fb00c4cb6442cc638719bc61d9d94eaf68f2b058f19df7

SHA512
f878527986c4a640babc7106ebf057a51cab9db3994a116b6d651844a53879f7105de103736ca6fe9582bd8fd14b0d62a2551fcdba676ea3317934c084a024d8

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/1392-70-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1480-61-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1480-67-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1944-58-0x00000000000D0000-0x00000000000FE000-memory.dmp

Filesize
184KB

Download
memory/1944-56-0x0000000050780000-0x000000005079D000-memory.dmp

Filesize
116KB

Download
memory/1944-71-0x00000000000D0000-0x00000000000D6000-memory.dmp

Filesize
24KB

Download
memory/1944-55-0x0000000074D81000-0x0000000074D83000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing