vipkeylogger | 321b137e3d9fb127daa8a992a5e2d826361456054ccd70f2308a369663db755d

General

Target

2025-01-14_4c6155abdd35075944e44249e13a89b8_cobalt-strike_hiddentear.exe
Size

649KB
MD5

4c6155abdd35075944e44249e13a89b8
SHA1

badcccacec1ef981465c198cda1a14655b500916
SHA256

321b137e3d9fb127daa8a992a5e2d826361456054ccd70f2308a369663db755d
SHA512

d788a5d941a3e649feea8fdfa83b537d62cb4e7cd125152950dde551803939fb1b5576a8885a7e69add1a41201e9600d334334b85ace6f0b535c73eddeccab52
SSDEEP

12288:JaUEPcD6Tx+ir6hNmTTHqQV68rRt2dAAr7Q:JaUEA4uAm7Q

Score

10^/10

vipkeylogger collection discovery keylogger stealer

Malware Config

Extracted

Family

vipkeylogger

C2

https://api.telegram.org/bot8142303375:AAHX-mzhzTV-i-RQwine3fdKTn0LVxq54ng/sendMessage?chat_id=7656766151

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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.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
6	checkip.dyndns.org
14	reallyfreegeoip.org
15	reallyfreegeoip.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 916 set thread context of 1864	916	2025-01-14_4c6155abdd35075944e44249e13a89b8_cobalt-strike_hiddentear.exe	83

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

System Location Discovery: System Language Discovery 1 TTPs 1 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	AddInProcess32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1864	AddInProcess32.exe
1864	AddInProcess32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1864	AddInProcess32.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 916 wrote to memory of 1864	916	2025-01-14_4c6155abdd35075944e44249e13a89b8_cobalt-strike_hiddentear.exe	83
PID 916 wrote to memory of 1864	916	2025-01-14_4c6155abdd35075944e44249e13a89b8_cobalt-strike_hiddentear.exe	83
PID 916 wrote to memory of 1864	916	2025-01-14_4c6155abdd35075944e44249e13a89b8_cobalt-strike_hiddentear.exe	83
PID 916 wrote to memory of 1864	916	2025-01-14_4c6155abdd35075944e44249e13a89b8_cobalt-strike_hiddentear.exe	83
PID 916 wrote to memory of 1864	916	2025-01-14_4c6155abdd35075944e44249e13a89b8_cobalt-strike_hiddentear.exe	83
PID 916 wrote to memory of 1864	916	2025-01-14_4c6155abdd35075944e44249e13a89b8_cobalt-strike_hiddentear.exe	83
PID 916 wrote to memory of 1864	916	2025-01-14_4c6155abdd35075944e44249e13a89b8_cobalt-strike_hiddentear.exe	83
PID 916 wrote to memory of 1864	916	2025-01-14_4c6155abdd35075944e44249e13a89b8_cobalt-strike_hiddentear.exe	83

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	AddInProcess32.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-14_4c6155abdd35075944e44249e13a89b8_cobalt-strike_hiddentear.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-14_4c6155abdd35075944e44249e13a89b8_cobalt-strike_hiddentear.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:916
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1864

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

Replay Monitor

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Downloads

memory/1864-0-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/1864-1-0x000000007545E000-0x000000007545F000-memory.dmp

Filesize
4KB

Download
memory/1864-2-0x0000000005B90000-0x0000000006134000-memory.dmp

Filesize
5.6MB

Download
memory/1864-3-0x0000000005440000-0x00000000054DC000-memory.dmp

Filesize
624KB

Download
memory/1864-4-0x0000000075450000-0x0000000075C00000-memory.dmp

Filesize
7.7MB

Download
memory/1864-5-0x0000000006810000-0x00000000069D2000-memory.dmp

Filesize
1.8MB

Download
memory/1864-6-0x0000000006640000-0x0000000006690000-memory.dmp

Filesize
320KB

Download
memory/1864-7-0x0000000006F10000-0x000000000743C000-memory.dmp

Filesize
5.2MB

Download
memory/1864-8-0x000000007545E000-0x000000007545F000-memory.dmp

Filesize
4KB

Download
memory/1864-9-0x0000000075450000-0x0000000075C00000-memory.dmp

Filesize
7.7MB

Download
memory/1864-10-0x00000000069E0000-0x0000000006A72000-memory.dmp

Filesize
584KB

Download
memory/1864-11-0x0000000006790000-0x000000000679A000-memory.dmp

Filesize
40KB

Download
memory/1864-12-0x0000000075450000-0x0000000075C00000-memory.dmp

Filesize
7.7MB

Download
memory/1864-13-0x0000000075450000-0x0000000075C00000-memory.dmp

Filesize
7.7MB

Download
memory/1864-14-0x0000000075450000-0x0000000075C00000-memory.dmp

Filesize
7.7MB

Download
memory/1864-15-0x0000000075450000-0x0000000075C00000-memory.dmp

Filesize
7.7MB

Download

Analysis

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