blakcsee_stealer | 173a9aba054121c8642d46330a99037b6d13455b07b312130ad9c68afd93914f

Analysis

max time kernel
149s
max time network
163s
platform
windows10-ltsc_2021_x64
resource
win10ltsc2021-20260513-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20260513-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows
submitted
09/08/2026, 12:16

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General

Target
vsdbg.dll
Size 3.3MB
Sample260809-pfgnwaxdnc
SHA256 173a9aba054121c8642d46330a99037b6d13455b07b312130ad9c68afd93914f
MD5 7493dbfd016e62ab2fdfb32420d4554e
SHA1 6ee9c5ab525cfce93e2bedcf07b4373c42ed36c8
SHA512 fa4ec8e816adf19ef3b1d7ca6ae3abb0d01a2812877dd7366432a7fa026da71d8e49a5090a911ad800f72c325889c3e3cc2935a5d9f552630c75d31dfc752e04
SSDEEP 98304:PUdVeVQnwWoI4N9DXQpOuodDwO9WnhW1v3f9I/2ELhJNJizXGEe76/6a3plBjF8q:PUEQLolN9kpiwOyOu/2SlJir/eOz7ZFn
TLSH
T1D4F5BF85B3C4AAD9C146DD3A9714F232C1B2B9234FB6D0CA5E97C70A4ABAD514F3DB40
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery blakcsee_stealer stealer

Malware Config

Extracted

Family

blakcsee_stealer

94.183.168.16

Signatures

Family: BlakcSeeStealer
BlakcSeeStealer is a Windows stealer written in C++.
stealer blakcsee_stealer

Looks up external IP address via web service 1 TTPs 5 IoCs

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

discovery

Internet Connection Discovery

T1016.001

flow	ioc
11	api.ipify.org
12	ip-api.com
20	ipapi.co
31	ipapi.co
10	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1928 set thread context of 1720	1928	rundll32.exe	84

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ServiceModelReg.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ServiceModelReg.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1928 wrote to memory of 1720	1928	rundll32.exe	84
PID 1928 wrote to memory of 1720	1928	rundll32.exe	84
PID 1928 wrote to memory of 1720	1928	rundll32.exe	84
PID 1928 wrote to memory of 1720	1928	rundll32.exe	84
PID 1928 wrote to memory of 1720	1928	rundll32.exe	84
PID 1928 wrote to memory of 1720	1928	rundll32.exe	84
PID 1928 wrote to memory of 1720	1928	rundll32.exe	84
PID 1928 wrote to memory of 1720	1928	rundll32.exe	84
PID 1720 wrote to memory of 228	1720	ServiceModelReg.exe	93
PID 1720 wrote to memory of 228	1720	ServiceModelReg.exe	93
PID 1720 wrote to memory of 4140	1720	ServiceModelReg.exe	95
PID 1720 wrote to memory of 4140	1720	ServiceModelReg.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\vsdbg.dll,#1
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1928
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ServiceModelReg.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ServiceModelReg.exe"
  2⤵
  - Checks processor information in registry
  - Suspicious use of WriteProcessMemory
  PID:1720
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    3⤵
    PID:228
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    3⤵
    PID:4140

C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
1⤵
PID:676

C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
1⤵
PID:476

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Browser Information Discovery

T1217

Query Registry

T1012

System Information Discovery

T1082

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1720-0-0x0000000140000000-0x00000001400E1000-memory.dmp

Download

memory/1720-3-0x0000000140000000-0x00000001400E1000-memory.dmp

Download

memory/1720-16-0x0000000140000000-0x00000001400E1000-memory.dmp

Download

memory/1720-15-0x0000000140000000-0x00000001400E1000-memory.dmp

Download

memory/1720-14-0x0000000140000000-0x00000001400E1000-memory.dmp

Download

memory/1720-13-0x0000000140000000-0x00000001400E1000-memory.dmp

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memory/1720-12-0x0000000140000000-0x00000001400E1000-memory.dmp

Download

memory/1720-11-0x0000000140000000-0x00000001400E1000-memory.dmp

Download

memory/1720-8-0x0000000140000000-0x00000001400E1000-memory.dmp

Download

memory/1720-7-0x0000000140000000-0x00000001400E1000-memory.dmp

Download

memory/1720-6-0x0000000140000000-0x00000001400E1000-memory.dmp

Download

memory/1720-5-0x0000000140000000-0x00000001400E1000-memory.dmp

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memory/1720-2-0x0000000140000000-0x00000001400E1000-memory.dmp

Download

memory/1720-1-0x0000000140000000-0x00000001400E1000-memory.dmp

Download

memory/1720-10-0x0000000140000000-0x00000001400E1000-memory.dmp

Download

memory/1720-9-0x0000000140000000-0x00000001400E1000-memory.dmp

Download

memory/1720-4-0x0000000140000000-0x00000001400E1000-memory.dmp

Download

memory/1720-32-0x0000000140000000-0x00000001400E1000-memory.dmp

Download

memory/1720-33-0x0000000140000000-0x00000001400E1000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads