ramnit | af8ff94957bef83b68e4047ee8c8dde2ddc81b785bfe345cf8c88ed7dcd09e5b

Analysis

max time kernel
132s
max time network
125s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
13-06-2024 09:39

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General

Target

$PLUGINSDIR/MyNsisExtend.dll
Size

596KB
MD5

37e4e1ab9aee0596c2fa5888357a63b0
SHA1

a5dba8c0a1bd936dca2b6a81f2dc9a3005f1a2b6
SHA256

ff4b245fea98cedd881ca102468623a449a0b40df0c557dd8a6ea32e788d56fe
SHA512

5cbab2872683079c6cc09423a2baf7107b5ac5731f336cd237fa93a4a4ee53a127963dc0ec0dbc6168b9b3d2c3a881c7663ce4ecd84d964628dd566395d49bb3
SSDEEP

12288:1QXznhWxifqPG8yDAay0BQeMrtQW27ZJ6ObWTE5lqtmsVsIdj:1QXznYybPJnWTE5lqwsKG

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

Processes:

rundll32Srv.exeDesktopLayer.exe

pid process

2168 rundll32Srv.exe
3056 DesktopLayer.exe
Loads dropped DLL 2 IoCs

Processes:

rundll32.exerundll32Srv.exe

pid process

1512 rundll32.exe
2168 rundll32Srv.exe

pid	process
2168	rundll32Srv.exe
3056	DesktopLayer.exe

pid	process
1512	rundll32.exe
2168	rundll32Srv.exe

UPX packed file 7 IoCs

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

upx

Processes:

resource	yara_rule
\Windows\SysWOW64\rundll32Srv.exe	upx
behavioral5/memory/1512-4-0x0000000000680000-0x00000000006AE000-memory.dmp	upx
behavioral5/memory/2168-8-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral5/memory/2168-11-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral5/memory/3056-22-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral5/memory/3056-20-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral5/memory/3056-19-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

Processes:

rundll32.exe

description ioc process

File created C:\Windows\SysWOW64\rundll32Srv.exe rundll32.exe

description	ioc	process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe

Drops file in Program Files directory 3 IoCs

Processes:

rundll32Srv.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px19F6.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\DesktopLayer.exe	rundll32Srv.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2220 1512 WerFault.exe rundll32.exe

pid	pid_target	process	target process
2220	1512	WerFault.exe	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 28 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "424433490"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{E75DBB41-2968-11EF-AE65-4658C477BD5D} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\SearchScopes	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\SearchScopes\DownloadRetries = "3"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

DesktopLayer.exe

pid process

3056 DesktopLayer.exe
3056 DesktopLayer.exe
3056 DesktopLayer.exe
3056 DesktopLayer.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

2700 iexplore.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

2700 iexplore.exe
2700 iexplore.exe
2628 IEXPLORE.EXE
2628 IEXPLORE.EXE
2628 IEXPLORE.EXE
2628 IEXPLORE.EXE

pid	process
3056	DesktopLayer.exe
3056	DesktopLayer.exe
3056	DesktopLayer.exe
3056	DesktopLayer.exe

pid	process
2700	iexplore.exe

pid	process
2700	iexplore.exe
2700	iexplore.exe
2628	IEXPLORE.EXE
2628	IEXPLORE.EXE
2628	IEXPLORE.EXE
2628	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

rundll32.exerundll32.exerundll32Srv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 616 wrote to memory of 1512	616	rundll32.exe	rundll32.exe
PID 616 wrote to memory of 1512	616	rundll32.exe	rundll32.exe
PID 616 wrote to memory of 1512	616	rundll32.exe	rundll32.exe
PID 616 wrote to memory of 1512	616	rundll32.exe	rundll32.exe
PID 616 wrote to memory of 1512	616	rundll32.exe	rundll32.exe
PID 616 wrote to memory of 1512	616	rundll32.exe	rundll32.exe
PID 616 wrote to memory of 1512	616	rundll32.exe	rundll32.exe
PID 1512 wrote to memory of 2168	1512	rundll32.exe	rundll32Srv.exe
PID 1512 wrote to memory of 2168	1512	rundll32.exe	rundll32Srv.exe
PID 1512 wrote to memory of 2168	1512	rundll32.exe	rundll32Srv.exe
PID 1512 wrote to memory of 2168	1512	rundll32.exe	rundll32Srv.exe
PID 1512 wrote to memory of 2220	1512	rundll32.exe	WerFault.exe
PID 1512 wrote to memory of 2220	1512	rundll32.exe	WerFault.exe
PID 1512 wrote to memory of 2220	1512	rundll32.exe	WerFault.exe
PID 1512 wrote to memory of 2220	1512	rundll32.exe	WerFault.exe
PID 2168 wrote to memory of 3056	2168	rundll32Srv.exe	DesktopLayer.exe
PID 2168 wrote to memory of 3056	2168	rundll32Srv.exe	DesktopLayer.exe
PID 2168 wrote to memory of 3056	2168	rundll32Srv.exe	DesktopLayer.exe
PID 2168 wrote to memory of 3056	2168	rundll32Srv.exe	DesktopLayer.exe
PID 3056 wrote to memory of 2700	3056	DesktopLayer.exe	iexplore.exe
PID 3056 wrote to memory of 2700	3056	DesktopLayer.exe	iexplore.exe
PID 3056 wrote to memory of 2700	3056	DesktopLayer.exe	iexplore.exe
PID 3056 wrote to memory of 2700	3056	DesktopLayer.exe	iexplore.exe
PID 2700 wrote to memory of 2628	2700	iexplore.exe	IEXPLORE.EXE
PID 2700 wrote to memory of 2628	2700	iexplore.exe	IEXPLORE.EXE
PID 2700 wrote to memory of 2628	2700	iexplore.exe	IEXPLORE.EXE
PID 2700 wrote to memory of 2628	2700	iexplore.exe	IEXPLORE.EXE

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\MyNsisExtend.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:616

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\MyNsisExtend.dll,#1
2⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1512

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:2168

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:3056

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:2700

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2700 CREDAT:275457 /prefetch:2
6⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2628

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1512 -s 240
3⤵
- Program crash
PID:2220

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Windows\SysWOW64\rundll32Srv.exe
Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/1512-3-0x0000000010000000-0x000000001009A000-memory.dmp

Filesize
616KB

Download
memory/1512-1-0x0000000010000000-0x000000001009A000-memory.dmp

Filesize
616KB

Download
memory/1512-4-0x0000000000680000-0x00000000006AE000-memory.dmp

Filesize
184KB

Download
memory/1512-25-0x0000000000680000-0x00000000006AE000-memory.dmp

Filesize
184KB

Download
memory/1512-24-0x0000000010000000-0x000000001009A000-memory.dmp

Filesize
616KB

Download
memory/2168-10-0x0000000000230000-0x000000000023F000-memory.dmp

Filesize
60KB

Download
memory/2168-11-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2168-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3056-22-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3056-21-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/3056-20-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3056-19-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download