bd8bab6bad5bb4658a9101e8ddbac3f1770ce350cf081e77131c1a6d3a120b3f

Analysis

max time kernel
150s
max time network
143s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
21/08/2026, 11:39

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General

Target
bd8bab6bad5bb4658a9101e8ddbac3f1770ce350cf081e77131c1a6d3a120b3f.exe
Size 7.3MB
Sample260821-nsppksbb89
SHA256 bd8bab6bad5bb4658a9101e8ddbac3f1770ce350cf081e77131c1a6d3a120b3f
MD5 c03afc2ffd81f833135e1c980df101a9
SHA1 251812f4660a1cc889618cbec53a1ee22c4e777b
SHA512 cfa58955e6a234f0a224c474be0d82232abdc41bf2eee3ff2c8c6cefbb77ac02b7f783ad343f50c2ed44b36b1dfa103f95e36162848d908863369fb548859738
SSDEEP 98304:oKgFq5u5F3PErnC0sUDODEhI17FEXyubD:oR75FGDODsDD
TLSH
T172762807E86554E8C0BED9308A7396A27B617C486F2173D71EA0BA293F77BE06D75340
MD5 SHA1 SHA512 SSDEEP TLSH

Score

6^/10

persistence

Malware Config

Signatures

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1014449518-1831897916-4205727055-1000\Software\Microsoft\Windows\CurrentVersion\Run\ClassmessengerClient = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\bd8bab6bad5bb4658a9101e8ddbac3f1770ce350cf081e77131c1a6d3a120b3f.exe\""	reg.exe

Modifies registry key 1 TTPs 2 IoCs

Modify Registry

T1112

pid	Process
6952	reg.exe
6276	reg.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4384 wrote to memory of 6952	4384	bd8bab6bad5bb4658a9101e8ddbac3f1770ce350cf081e77131c1a6d3a120b3f.exe	89
PID 4384 wrote to memory of 6276	4384	bd8bab6bad5bb4658a9101e8ddbac3f1770ce350cf081e77131c1a6d3a120b3f.exe	91

C:\Users\Admin\AppData\Local\Temp\bd8bab6bad5bb4658a9101e8ddbac3f1770ce350cf081e77131c1a6d3a120b3f.exe
"C:\Users\Admin\AppData\Local\Temp\bd8bab6bad5bb4658a9101e8ddbac3f1770ce350cf081e77131c1a6d3a120b3f.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4384
- C:\Windows\system32\reg.exe
  reg query HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v ClassmessengerClient
  2⤵
  - Modifies registry key
  PID:6952
- C:\Windows\system32\reg.exe
  reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v ClassmessengerClient /t REG_SZ /d \"C:\Users\Admin\AppData\Local\Temp\bd8bab6bad5bb4658a9101e8ddbac3f1770ce350cf081e77131c1a6d3a120b3f.exe\" /f
  2⤵
  - Adds Run key to start application
  - Modifies registry key
  PID:6276

C:\Users\Admin\AppData\Local\Temp\bd8bab6bad5bb4658a9101e8ddbac3f1770ce350cf081e77131c1a6d3a120b3f.exe
"C:\Users\Admin\AppData\Local\Temp\bd8bab6bad5bb4658a9101e8ddbac3f1770ce350cf081e77131c1a6d3a120b3f.exe"
1⤵
PID:6284

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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