vipkeylogger | af8878eb8a759d1aff4b2fa4747fbf420f138f7b0fb6fd6182140a96c6eafe1f

General

Target

af8878eb8a759d1aff4b2fa4747fbf420f138f7b0fb6fd6182140a96c6eafe1f.exe
Size

993KB
MD5

cee416c06c1d15f65b3774b222c02286
SHA1

757b458be33e42a3f41b95fa848a97f1039941dd
SHA256

af8878eb8a759d1aff4b2fa4747fbf420f138f7b0fb6fd6182140a96c6eafe1f
SHA512

df2133b5d300fe243241a6ed19bf025045759df55a5395e2693667cd59174c2e2147dd3ff090682f0cd41112b50fe208930400bf3e49113605745917e7dbf575
SSDEEP

24576:QAHnh+eWsN3skA4RV1Hom2KXFmIaIovzLqQMOvL+5:Hh+ZkldoPK1XaIo3dQ

Score

10^/10

vipkeylogger collection discovery keylogger stealer

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot7721085569:AAH1tkciy-nKykIEUNjOAUsItTcvNCVmFLo/sendMessage?chat_id=6236275763

Signatures

VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
stealer keylogger vipkeylogger
Vipkeylogger family
vipkeylogger

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\eupolyzoan.vbs	eupolyzoan.exe

Executes dropped EXE 1 IoCs

pid	Process
2372	eupolyzoan.exe

Loads dropped DLL 1 IoCs

pid	Process
2520	af8878eb8a759d1aff4b2fa4747fbf420f138f7b0fb6fd6182140a96c6eafe1f.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	checkip.dyndns.org
8	reallyfreegeoip.org
9	reallyfreegeoip.org

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x00070000000175f1-13.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2372 set thread context of 2740	2372	eupolyzoan.exe	31

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	af8878eb8a759d1aff4b2fa4747fbf420f138f7b0fb6fd6182140a96c6eafe1f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	eupolyzoan.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2740	RegSvcs.exe
2740	RegSvcs.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2372	eupolyzoan.exe
2372	eupolyzoan.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2740	RegSvcs.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2520	af8878eb8a759d1aff4b2fa4747fbf420f138f7b0fb6fd6182140a96c6eafe1f.exe
2520	af8878eb8a759d1aff4b2fa4747fbf420f138f7b0fb6fd6182140a96c6eafe1f.exe
2372	eupolyzoan.exe
2372	eupolyzoan.exe

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
2520	af8878eb8a759d1aff4b2fa4747fbf420f138f7b0fb6fd6182140a96c6eafe1f.exe
2520	af8878eb8a759d1aff4b2fa4747fbf420f138f7b0fb6fd6182140a96c6eafe1f.exe
2372	eupolyzoan.exe
2372	eupolyzoan.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2372	2520	af8878eb8a759d1aff4b2fa4747fbf420f138f7b0fb6fd6182140a96c6eafe1f.exe	30
PID 2520 wrote to memory of 2372	2520	af8878eb8a759d1aff4b2fa4747fbf420f138f7b0fb6fd6182140a96c6eafe1f.exe	30
PID 2520 wrote to memory of 2372	2520	af8878eb8a759d1aff4b2fa4747fbf420f138f7b0fb6fd6182140a96c6eafe1f.exe	30
PID 2520 wrote to memory of 2372	2520	af8878eb8a759d1aff4b2fa4747fbf420f138f7b0fb6fd6182140a96c6eafe1f.exe	30
PID 2372 wrote to memory of 2740	2372	eupolyzoan.exe	31
PID 2372 wrote to memory of 2740	2372	eupolyzoan.exe	31
PID 2372 wrote to memory of 2740	2372	eupolyzoan.exe	31
PID 2372 wrote to memory of 2740	2372	eupolyzoan.exe	31
PID 2372 wrote to memory of 2740	2372	eupolyzoan.exe	31
PID 2372 wrote to memory of 2740	2372	eupolyzoan.exe	31
PID 2372 wrote to memory of 2740	2372	eupolyzoan.exe	31
PID 2372 wrote to memory of 2740	2372	eupolyzoan.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\af8878eb8a759d1aff4b2fa4747fbf420f138f7b0fb6fd6182140a96c6eafe1f.exe
"C:\Users\Admin\AppData\Local\Temp\af8878eb8a759d1aff4b2fa4747fbf420f138f7b0fb6fd6182140a96c6eafe1f.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Users\Admin\AppData\Local\unfatigued\eupolyzoan.exe
  "C:\Users\Admin\AppData\Local\Temp\af8878eb8a759d1aff4b2fa4747fbf420f138f7b0fb6fd6182140a96c6eafe1f.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2372
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\af8878eb8a759d1aff4b2fa4747fbf420f138f7b0fb6fd6182140a96c6eafe1f.exe"
    3⤵
    - Accesses Microsoft Outlook profiles
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - outlook_office_path
    - outlook_win_path
    PID:2740

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

1

T1217

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\unfatigued\eupolyzoan.exe

Filesize
993KB

MD5
cee416c06c1d15f65b3774b222c02286

SHA1
757b458be33e42a3f41b95fa848a97f1039941dd

SHA256
af8878eb8a759d1aff4b2fa4747fbf420f138f7b0fb6fd6182140a96c6eafe1f

SHA512
df2133b5d300fe243241a6ed19bf025045759df55a5395e2693667cd59174c2e2147dd3ff090682f0cd41112b50fe208930400bf3e49113605745917e7dbf575

Download Submit
memory/2372-31-0x0000000000720000-0x0000000000B20000-memory.dmp

Filesize
4.0MB

Download
memory/2520-11-0x0000000000C10000-0x0000000001010000-memory.dmp

Filesize
4.0MB

Download
memory/2740-33-0x0000000000090000-0x00000000000DA000-memory.dmp

Filesize
296KB

Download
memory/2740-35-0x0000000000090000-0x00000000000DA000-memory.dmp

Filesize
296KB

Download
memory/2740-42-0x0000000000090000-0x00000000000DA000-memory.dmp

Filesize
296KB

Download
memory/2740-39-0x0000000000090000-0x00000000000DA000-memory.dmp

Filesize
296KB

Download
memory/2740-43-0x0000000073F5E000-0x0000000073F5F000-memory.dmp

Filesize
4KB

Download
memory/2740-44-0x0000000073F50000-0x000000007463E000-memory.dmp

Filesize
6.9MB

Download
memory/2740-45-0x0000000073F5E000-0x0000000073F5F000-memory.dmp

Filesize
4KB

Download
memory/2740-46-0x0000000073F50000-0x000000007463E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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