ramnit | bacb6cba0ffe728857f95f6bd42abe04b40c372d860a078df34f8b00d341e3ef

General

Target

bacb6cba0ffe728857f95f6bd42abe04b40c372d860a078df34f8b00d341e3ef.dll
Size

270KB
MD5

0134594a7cc34ca4e0ea65a859c42350
SHA1

cdb378ea8a0c2dc458730558f71e1ef6a7dc827e
SHA256

bacb6cba0ffe728857f95f6bd42abe04b40c372d860a078df34f8b00d341e3ef
SHA512

bbaa108e100ca1fe27fcc119e4bd875ed568d73a66055e9c84deb62b3143f48ef59a8d8a02f6a5fae9e754ba725a0daa6f41eaca4a90772c221b88b62e71247f
SSDEEP

6144:O1XE0nNxr+WGlr8iM1jpOBsnW/tJaFsz9zKSpR:SXPNxr++iM1mmsz

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
836	rundll32Srv.exe
2020	DesktopLayer.exe

UPX packed file 8 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000c0000000054a8-61.dat	upx
behavioral1/files/0x000c0000000054a8-63.dat	upx
behavioral1/files/0x00090000000132f6-64.dat	upx
behavioral1/memory/2020-71-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x00090000000132f6-69.dat	upx
behavioral1/memory/836-68-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x00090000000132f6-66.dat	upx
behavioral1/files/0x000c0000000054a8-59.dat	upx

Loads dropped DLL 2 IoCs

pid	Process
1944	rundll32.exe
836	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\pxA3E.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
1344	1944	WerFault.exe	19

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "373765104"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{266CB211-5719-11ED-BD75-FAF5FAF3A79A} = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2020	DesktopLayer.exe
2020	DesktopLayer.exe
2020	DesktopLayer.exe
2020	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1696	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1696	iexplore.exe
1696	iexplore.exe
1232	IEXPLORE.EXE
1232	IEXPLORE.EXE
1232	IEXPLORE.EXE
1232	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 280 wrote to memory of 1944	280	rundll32.exe	19
PID 280 wrote to memory of 1944	280	rundll32.exe	19
PID 280 wrote to memory of 1944	280	rundll32.exe	19
PID 280 wrote to memory of 1944	280	rundll32.exe	19
PID 280 wrote to memory of 1944	280	rundll32.exe	19
PID 280 wrote to memory of 1944	280	rundll32.exe	19
PID 280 wrote to memory of 1944	280	rundll32.exe	19
PID 1944 wrote to memory of 836	1944	rundll32.exe	26
PID 1944 wrote to memory of 836	1944	rundll32.exe	26
PID 1944 wrote to memory of 836	1944	rundll32.exe	26
PID 1944 wrote to memory of 836	1944	rundll32.exe	26
PID 836 wrote to memory of 2020	836	rundll32Srv.exe	29
PID 836 wrote to memory of 2020	836	rundll32Srv.exe	29
PID 836 wrote to memory of 2020	836	rundll32Srv.exe	29
PID 836 wrote to memory of 2020	836	rundll32Srv.exe	29
PID 1944 wrote to memory of 1344	1944	rundll32.exe	27
PID 1944 wrote to memory of 1344	1944	rundll32.exe	27
PID 1944 wrote to memory of 1344	1944	rundll32.exe	27
PID 1944 wrote to memory of 1344	1944	rundll32.exe	27
PID 2020 wrote to memory of 1696	2020	DesktopLayer.exe	28
PID 2020 wrote to memory of 1696	2020	DesktopLayer.exe	28
PID 2020 wrote to memory of 1696	2020	DesktopLayer.exe	28
PID 2020 wrote to memory of 1696	2020	DesktopLayer.exe	28
PID 1696 wrote to memory of 1232	1696	iexplore.exe	31
PID 1696 wrote to memory of 1232	1696	iexplore.exe	31
PID 1696 wrote to memory of 1232	1696	iexplore.exe	31
PID 1696 wrote to memory of 1232	1696	iexplore.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bacb6cba0ffe728857f95f6bd42abe04b40c372d860a078df34f8b00d341e3ef.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:280
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bacb6cba0ffe728857f95f6bd42abe04b40c372d860a078df34f8b00d341e3ef.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:836
  - - 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:2020
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1944 -s 224
    3⤵
    - Program crash
    PID:1344

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe"
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1696
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1696 CREDAT:275457 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:1232

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\DEGU4ZCW.txt

Filesize
603B

MD5
5de290c803d97414730abc46e0cbaf54

SHA1
bf29b4d1aed97e6370f6bcb22c4c2d79f846fb78

SHA256
cf4771099b82eaa73bb83da60bbef784b55beb4dd45035d57d97ba1e33ac194b

SHA512
0b250c9d704f7cda43ca528dd777915c7bc5eb4e7769ee376ff2837ef22ed87809d5efc65e75fe181a8544781fd0970880e61b21ddf57b13c8f7c2701cc6900a

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/836-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1944-56-0x0000000075490000-0x00000000754D8000-memory.dmp

Filesize
288KB

Download
memory/1944-58-0x0000000075490000-0x00000000754D8000-memory.dmp

Filesize
288KB

Download
memory/1944-57-0x0000000075440000-0x0000000075488000-memory.dmp

Filesize
288KB

Download
memory/1944-72-0x00000000001F0000-0x000000000021E000-memory.dmp

Filesize
184KB

Download
memory/1944-73-0x0000000075440000-0x0000000075488000-memory.dmp

Filesize
288KB

Download
memory/1944-74-0x00000000001F0000-0x000000000021E000-memory.dmp

Filesize
184KB

Download
memory/1944-55-0x0000000076831000-0x0000000076833000-memory.dmp

Filesize
8KB

Download
memory/2020-71-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing