ramnit | e51bac091a171091098a61a2706c410ff7896d04f1f82bcec6c8b42447544805

Analysis

max time kernel
130s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
23-05-2024 02:50

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General

Target

$PLUGINSDIR/xml.dll
Size

175KB
MD5

0ad70d0ebf9562e53f2fd9518c3b04a3
SHA1

4de4487e4d1e87b782eceb3b74d9510cc28b0c70
SHA256

3bd4a099f0e0eefeaacfdba6c0ab760b6e9250167ba6a30eafaa668ca53ce5e9
SHA512

f75e089f7eb44071f227cd9705b8e44982429f889f93230e98095aac60afc1bdd39a010787235c171cd9fb9ead8023043b147022ab007e8cf1c3204064905719
SSDEEP

3072:vzjLkarn7O+n9z2L6whFtGF42bKgGoqVvbaNXubJ1JI:vzP7n7O7L6K2lqVvWIdjI

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

388 rundll32Srv.exe
4664 DesktopLayer.exe

pid	process
388	rundll32Srv.exe
4664	DesktopLayer.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
C:\Windows\SysWOW64\rundll32Srv.exe	upx
behavioral18/memory/388-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral18/memory/388-7-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral18/memory/4664-15-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral18/memory/4664-14-0x0000000000400000-0x000000000042E000-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\px4EDB.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

Processes:

WerFault.exe

pid pid_target process target process

2912 3824 WerFault.exe rundll32.exe

pid	pid_target	process	target process
2912	3824	WerFault.exe	rundll32.exe

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

Processes:

IEXPLORE.EXEiexplore.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "660968192"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "669092817"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{52FC06A5-18AF-11EF-A084-4A7C5F4B2F01} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "423197651"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "660968192"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31108284"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31108284"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31108284"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

DesktopLayer.exe

pid	process
4664	DesktopLayer.exe
4664	DesktopLayer.exe
4664	DesktopLayer.exe
4664	DesktopLayer.exe
4664	DesktopLayer.exe
4664	DesktopLayer.exe
4664	DesktopLayer.exe
4664	DesktopLayer.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

1196 iexplore.exe
Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

1196 iexplore.exe
1196 iexplore.exe
3680 IEXPLORE.EXE
3680 IEXPLORE.EXE
3680 IEXPLORE.EXE
3680 IEXPLORE.EXE

pid	process
1196	iexplore.exe

pid	process
1196	iexplore.exe
1196	iexplore.exe
3680	IEXPLORE.EXE
3680	IEXPLORE.EXE
3680	IEXPLORE.EXE
3680	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

rundll32.exerundll32.exerundll32Srv.exeDesktopLayer.exeiexplore.exe

description	pid	process	target process
PID 4392 wrote to memory of 3824	4392	rundll32.exe	rundll32.exe
PID 4392 wrote to memory of 3824	4392	rundll32.exe	rundll32.exe
PID 4392 wrote to memory of 3824	4392	rundll32.exe	rundll32.exe
PID 3824 wrote to memory of 388	3824	rundll32.exe	rundll32Srv.exe
PID 3824 wrote to memory of 388	3824	rundll32.exe	rundll32Srv.exe
PID 3824 wrote to memory of 388	3824	rundll32.exe	rundll32Srv.exe
PID 388 wrote to memory of 4664	388	rundll32Srv.exe	DesktopLayer.exe
PID 388 wrote to memory of 4664	388	rundll32Srv.exe	DesktopLayer.exe
PID 388 wrote to memory of 4664	388	rundll32Srv.exe	DesktopLayer.exe
PID 4664 wrote to memory of 1196	4664	DesktopLayer.exe	iexplore.exe
PID 4664 wrote to memory of 1196	4664	DesktopLayer.exe	iexplore.exe
PID 1196 wrote to memory of 3680	1196	iexplore.exe	IEXPLORE.EXE
PID 1196 wrote to memory of 3680	1196	iexplore.exe	IEXPLORE.EXE
PID 1196 wrote to memory of 3680	1196	iexplore.exe	IEXPLORE.EXE

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\xml.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4392

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\xml.dll,#1
2⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3824

C:\Windows\SysWOW64\rundll32Srv.exe
C:\Windows\SysWOW64\rundll32Srv.exe
3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:388

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:4664

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:1196

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1196 CREDAT:17410 /prefetch:2
6⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:3680

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3824 -s 612
3⤵
- Program crash
PID:2912

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3824 -ip 3824
1⤵
PID:832

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
01409a92b179c99711ea8c28d307d0c4

SHA1
a9cc2b0c5727e2af14819f3908c4693f8e891392

SHA256
3034962a4c308ef5e66a2de7faf1ed2439b7e59086a8c07ad59ce3669b8ee01c

SHA512
8e86173a54d253f3e05443c603222b9018d63a3fb8e3a26b2b5602c083c07b117d5c53ede08056b6aa4503380562444c6704de32b2cce76f146478616b7278c9

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
212e7ae68e04f4b5de95fcc69b12bf4c

SHA1
0e511682c66d3a252c40d3e3d2b20d352a71c135

SHA256
af49392d7a183ef7ba5af644bfc0a6347c6e56df12386f3e1fbc8f85735d2a22

SHA512
2415e4bcdc5fbab1d25ccc1b1a2a316e120bc0e0a6e3b80968333caf2f575937ec4528f48d6075a7858ceb9419bf614b4bef507c3b09a38c2c5001293dd2a2b5

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\AKI8W8FH\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
55KB

MD5
ff5e1f27193ce51eec318714ef038bef

SHA1
b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6

SHA256
fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320

SHA512
c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a

Download Submit
memory/388-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/388-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/388-6-0x0000000000590000-0x000000000059F000-memory.dmp

Filesize
60KB

Download
memory/3824-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/3824-17-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4664-13-0x0000000001F10000-0x0000000001F11000-memory.dmp

Filesize
4KB

Download
memory/4664-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4664-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download