Overview

overview

10

Static

static

SKBMT__B.exe

windows7_x64

10

SKBMT__B.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    60s
  • max time network
    190s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 12:18

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General

  • Target

    SKBMT__B.exe

  • Size

    807KB

  • MD5

    848160f98c9f8649b24e626a9b2b771c

  • SHA1

    0f9b15af9c94d497979efc1ad64e81ce89a8ed76

  • SHA256

    4e232298aee519176835a2da80f0a04ac027ac235a5b5ea51974c66318b59245

  • SHA512

    235f7516b632632a79994cc7d35a725a141d88f301d63c40d4c68ed225075769e2aae6f2d5671c638c002d1ad136e718534517e17d4a206391e40e63610db242

Score
10/10
massloggerransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\8236ADF044\Log.txt

Family

masslogger

Ransom Note
################################################################# MassLogger v1.3.4.0 ################################################################# ### Logger Details ### User Name: Admin IP: 154.61.71.50 Location: United States OS: Microsoft Windows 10 Pro64bit CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 2:30:05 PM MassLogger Started: 5/21/2022 2:29:50 PM Interval: 96 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\SKBMT__B.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes:

Signatures

  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

    stealerspywaremasslogger
  • MassLogger Main Payload 32 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SKBMT__B.exe
    "C:\Users\Admin\AppData\Local\Temp\SKBMT__B.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3204
    • C:\Users\Admin\AppData\Local\Temp\SKBMT__B.exe
      "C:\Users\Admin\AppData\Local\Temp\SKBMT__B.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1656

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\SKBMT__B.exe.log
    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    Download Submit
  • memory/1656-163-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-191-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-646-0x0000000005560000-0x00000000055C6000-memory.dmp
    Filesize

    408KB

    Download
  • memory/1656-161-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-135-0x0000000000000000-mapping.dmp
    Download
  • memory/1656-136-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-197-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-139-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-141-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-143-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-145-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-147-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-149-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-165-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-153-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-155-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-157-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-159-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-199-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-195-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-151-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-167-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-169-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-171-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-173-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-175-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-177-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-179-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-183-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-181-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-185-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-189-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-187-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/1656-193-0x0000000000400000-0x00000000004B0000-memory.dmp
    Filesize

    704KB

    Download
  • memory/3204-130-0x0000000000D00000-0x0000000000DD0000-memory.dmp
    Filesize

    832KB

    Download
  • memory/3204-132-0x00000000057C0000-0x0000000005852000-memory.dmp
    Filesize

    584KB

    Download
  • memory/3204-131-0x0000000005CD0000-0x0000000006274000-memory.dmp
    Filesize

    5.6MB

    Download
  • memory/3204-134-0x0000000009280000-0x000000000931C000-memory.dmp
    Filesize

    624KB

    Download
  • memory/3204-133-0x0000000005790000-0x000000000579A000-memory.dmp
    Filesize

    40KB

    Download