vkeylogger | 7325d304e8560ff643a656fd3689adcaec39650840efa8273c4556f6532e98d5

General

Target

41d46166752bc1ca3251f45caaab670c.exe
Size

337KB
MD5

41d46166752bc1ca3251f45caaab670c
SHA1

bde17b99bd1502e04c644548f40fdb6212db2aa7
SHA256

7325d304e8560ff643a656fd3689adcaec39650840efa8273c4556f6532e98d5
SHA512

6606c144a73d59cf68080bfa58f8e26401d768be614bd94843a2eb003e457ee53487b0e9284e4dffaea9befeae1c57edd39f9e84d0c1df261b31372473077741

Score

10^/10

vkeylogger keylogger persistence stealer

Malware Config

Signatures

VKeylogger
A keylogger first seen in Nov 2020.
stealer keylogger vkeylogger

VKeylogger Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1756-132-0x0000000002210000-0x000000000221E000-memory.dmp	family_vkeylogger
behavioral2/memory/1756-133-0x0000000000400000-0x00000000004D5000-memory.dmp	family_vkeylogger
behavioral2/memory/3708-134-0x0000000001040000-0x000000000104F000-memory.dmp	family_vkeylogger

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

explorer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fefgre = "C:\\Users\\Admin\\AppData\\Local\\Temp\\41d46166752bc1ca3251f45caaab670c.exe"	explorer.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1346565761-3498240568-4147300184-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ytyr = "C:\\Windows\\system32\\mshta.exe javascript:x=new%20ActiveXObject(\"wscript.shell\");v=x.RegRead(\"HKCU\\\\Software\\\\Microsoft\\\\SMSvcHost\\\\ComponentID\");eval(v);"	explorer.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

41d46166752bc1ca3251f45caaab670c.exe

description pid process target process

PID 1756 set thread context of 3708 1756 41d46166752bc1ca3251f45caaab670c.exe explorer.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4452 1756 WerFault.exe 41d46166752bc1ca3251f45caaab670c.exe
Suspicious behavior: MapViewOfSection 2 IoCs

Processes:

41d46166752bc1ca3251f45caaab670c.exeexplorer.exe

pid process

1756 41d46166752bc1ca3251f45caaab670c.exe
3708 explorer.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

explorer.exe

pid process

3708 explorer.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

explorer.exe

pid process

3708 explorer.exe

description	pid	process	target process
PID 1756 set thread context of 3708	1756	41d46166752bc1ca3251f45caaab670c.exe	explorer.exe

pid	pid_target	process	target process
4452	1756	WerFault.exe	41d46166752bc1ca3251f45caaab670c.exe

pid	process
1756	41d46166752bc1ca3251f45caaab670c.exe
3708	explorer.exe

pid	process
3708	explorer.exe

pid	process
3708	explorer.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

41d46166752bc1ca3251f45caaab670c.exe

description	pid	process	target process
PID 1756 wrote to memory of 3708	1756	41d46166752bc1ca3251f45caaab670c.exe	explorer.exe
PID 1756 wrote to memory of 3708	1756	41d46166752bc1ca3251f45caaab670c.exe	explorer.exe
PID 1756 wrote to memory of 3708	1756	41d46166752bc1ca3251f45caaab670c.exe	explorer.exe

C:\Users\Admin\AppData\Local\Temp\41d46166752bc1ca3251f45caaab670c.exe
"C:\Users\Admin\AppData\Local\Temp\41d46166752bc1ca3251f45caaab670c.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1756

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:3708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1756 -s 480
2⤵
- Program crash
PID:4452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 1756 -ip 1756
1⤵
PID:4264

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1756-130-0x0000000000598000-0x00000000005A9000-memory.dmp

Filesize
68KB

Download
memory/1756-131-0x0000000000598000-0x00000000005A9000-memory.dmp

Filesize
68KB

Download
memory/1756-132-0x0000000002210000-0x000000000221E000-memory.dmp

Filesize
56KB

Download
memory/1756-133-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/3708-134-0x0000000001040000-0x000000000104F000-memory.dmp

Filesize
60KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads