ramnit | df1cfb0304da20e931a5d8e974e82461e9f435720cefa0b0d4143aa948333934

General

Target

df1cfb0304da20e931a5d8e974e82461e9f435720cefa0b0d4143aa948333934.dll
Size

228KB
MD5

0b9dc555cc3576908a238763445354c0
SHA1

f9a0a140311bb921d22a860f755d1f3e4e734f62
SHA256

df1cfb0304da20e931a5d8e974e82461e9f435720cefa0b0d4143aa948333934
SHA512

f4494f627a49bdd9069c4d0a024e84b14dd8e313d565177990f043efedda17a0982a06b4cb383c5e1fea89ec09a65f647543b94f80a50c9c0a9546eed555b28d
SSDEEP

3072:Aen8Z3LQF3u/RvsU5ItqFjpgXJjbVor64Yfpijb745PzR+4S4T3oX1hIcQI7SpQv:F8ZbswvsUiQu/orN/4hvSPFhItQB

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
1020	rundll32Srv.exe
1108	DesktopLayer.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000c0000000054a8-56.dat	upx
behavioral1/files/0x000c0000000054a8-58.dat	upx
behavioral1/files/0x00090000000126c7-67.dat	upx
behavioral1/memory/1108-68-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x00090000000126c7-65.dat	upx
behavioral1/memory/1020-64-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/memory/1900-71-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral1/files/0x00090000000126c7-61.dat	upx
behavioral1/files/0x000c0000000054a8-60.dat	upx

Loads dropped DLL 2 IoCs

pid	Process
1900	rundll32.exe
1020	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\px25AB.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
1120	1900	WerFault.exe

Modifies Internet Explorer settings 1 TTPs 23 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
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\InternetRegistry	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\Recovery\PendingRecovery	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\Main\WindowsSearch	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\LowRegistry\DOMStorage	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\Toolbar\WebBrowser	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\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{5B390301-5718-11ED-808D-42A98B637845} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	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\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	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
Set value (data)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1108	DesktopLayer.exe
1108	DesktopLayer.exe
1108	DesktopLayer.exe
1108	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1064	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
1064	iexplore.exe
1064	iexplore.exe
812	IEXPLORE.EXE
812	IEXPLORE.EXE
812	IEXPLORE.EXE
812	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 1460 wrote to memory of 1900	1460	rundll32.exe	22
PID 1460 wrote to memory of 1900	1460	rundll32.exe	22
PID 1460 wrote to memory of 1900	1460	rundll32.exe	22
PID 1460 wrote to memory of 1900	1460	rundll32.exe	22
PID 1460 wrote to memory of 1900	1460	rundll32.exe	22
PID 1460 wrote to memory of 1900	1460	rundll32.exe	22
PID 1460 wrote to memory of 1900	1460	rundll32.exe	22
PID 1900 wrote to memory of 1020	1900	rundll32.exe	21
PID 1900 wrote to memory of 1020	1900	rundll32.exe	21
PID 1900 wrote to memory of 1020	1900	rundll32.exe	21
PID 1900 wrote to memory of 1020	1900	rundll32.exe	21
PID 1020 wrote to memory of 1108	1020	rundll32Srv.exe	19
PID 1020 wrote to memory of 1108	1020	rundll32Srv.exe	19
PID 1020 wrote to memory of 1108	1020	rundll32Srv.exe	19
PID 1020 wrote to memory of 1108	1020	rundll32Srv.exe	19
PID 1900 wrote to memory of 1120	1900	rundll32.exe	16
PID 1900 wrote to memory of 1120	1900	rundll32.exe	16
PID 1900 wrote to memory of 1120	1900	rundll32.exe	16
PID 1900 wrote to memory of 1120	1900	rundll32.exe	16
PID 1108 wrote to memory of 1064	1108	DesktopLayer.exe	17
PID 1108 wrote to memory of 1064	1108	DesktopLayer.exe	17
PID 1108 wrote to memory of 1064	1108	DesktopLayer.exe	17
PID 1108 wrote to memory of 1064	1108	DesktopLayer.exe	17
PID 1064 wrote to memory of 812	1064	iexplore.exe	20
PID 1064 wrote to memory of 812	1064	iexplore.exe	20
PID 1064 wrote to memory of 812	1064	iexplore.exe	20
PID 1064 wrote to memory of 812	1064	iexplore.exe	20

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1900 -s 224
1⤵
- Program crash
PID:1120

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:1064
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1064 CREDAT:275457 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:812

C:\Program Files (x86)\Microsoft\DesktopLayer.exe
"C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1108

C:\Windows\SysWOW64\rundll32Srv.exe
C:\Windows\SysWOW64\rundll32Srv.exe
1⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1020

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\df1cfb0304da20e931a5d8e974e82461e9f435720cefa0b0d4143aa948333934.dll,#1
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1900

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\df1cfb0304da20e931a5d8e974e82461e9f435720cefa0b0d4143aa948333934.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1460

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\X9QL7NMJ.txt

Filesize
603B

MD5
2154c269ddffd3be14cfd988d5507180

SHA1
e40c492397b3712307745090527d4787f1c0f827

SHA256
1f3f12a49e01f7966442018a124d777d8cdd60029ce15f4e31802424a1dfea99

SHA512
646dada217f090202402aacd9050296682bbae7f8049e673718d78eee61302efb95813814e14f97d77aa502a39770880c293e95b4424d55fc8b07f945b948ded

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/1020-64-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1108-68-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1900-70-0x0000000074780000-0x00000000747C4000-memory.dmp

Filesize
272KB

Download
memory/1900-71-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1900-69-0x00000000747D0000-0x0000000074814000-memory.dmp

Filesize
272KB

Download
memory/1900-72-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1900-55-0x0000000075981000-0x0000000075983000-memory.dmp

Filesize
8KB

Download

Analysis

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