Overview

overview

10

Static

static

1

38ea07deea...12.exe

windows7-x64

10

38ea07deea...12.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-03-2023 01:15

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General

  • Target

    38ea07deea1266829ec35c3e8c5cac83686e5efac1727405dd2c7361ae47e612.exe

  • Size

    519KB

  • MD5

    99d1d1a753ded2c46de75059bc9f27ce

  • SHA1

    6b71e8875664df78b52d741756671549993cc79c

  • SHA256

    38ea07deea1266829ec35c3e8c5cac83686e5efac1727405dd2c7361ae47e612

  • SHA512

    15c58058a531460712aa00e684d1025f3f86084719e85a331d824229cf059fc55ef972e24a9c391a1193d123cacab3fd92c59c934d070a0c8525d44b0e784409

  • SSDEEP

    12288:2ToPWBv/cpGrU3yVtX+t4VjxjCY0RNdA4k5TuuxrGn:2TbBv5rUyXVj10/dAN5KudO

Score
10/10
asyncratrat

Malware Config

Extracted

Family

asyncrat

Version

0.5.6

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808
Mutex

eiviqnxpqs

Attributes
  • delay

    5

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • Async RAT payload 4 IoCs
    rat
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\38ea07deea1266829ec35c3e8c5cac83686e5efac1727405dd2c7361ae47e612.exe
    "C:\Users\Admin\AppData\Local\Temp\38ea07deea1266829ec35c3e8c5cac83686e5efac1727405dd2c7361ae47e612.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2220
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\tamer.sfx.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\tamer.sfx.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2700
      • C:\Users\Admin\AppData\Local\Temp\RarSFX1\tamer.exe
        "C:\Users\Admin\AppData\Local\Temp\RarSFX1\tamer.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4952

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

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\tamer.sfx.exe
    Filesize

    349KB

    MD5

    6f037981df7ed239e5f6b138a14ecbb3

    SHA1

    d97bc2f25642e576b464f732e6518563b44fea1d

    SHA256

    8ec5ba9c65b748ba6ccdcbc63286f2a54c5bc3de241a7d3ab1b32d6664b01899

    SHA512

    35384d7a6e7056aa6569134756e927322cb9806ba1e3613cc97e75f50b84ad27fa1bbb2251390188e5525436d083b1d239712fac8fd1491863967c7857770198

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\tamer.sfx.exe
    Filesize

    349KB

    MD5

    6f037981df7ed239e5f6b138a14ecbb3

    SHA1

    d97bc2f25642e576b464f732e6518563b44fea1d

    SHA256

    8ec5ba9c65b748ba6ccdcbc63286f2a54c5bc3de241a7d3ab1b32d6664b01899

    SHA512

    35384d7a6e7056aa6569134756e927322cb9806ba1e3613cc97e75f50b84ad27fa1bbb2251390188e5525436d083b1d239712fac8fd1491863967c7857770198

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\RarSFX0\tamer.sfx.exe
    Filesize

    349KB

    MD5

    6f037981df7ed239e5f6b138a14ecbb3

    SHA1

    d97bc2f25642e576b464f732e6518563b44fea1d

    SHA256

    8ec5ba9c65b748ba6ccdcbc63286f2a54c5bc3de241a7d3ab1b32d6664b01899

    SHA512

    35384d7a6e7056aa6569134756e927322cb9806ba1e3613cc97e75f50b84ad27fa1bbb2251390188e5525436d083b1d239712fac8fd1491863967c7857770198

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\RarSFX1\tamer.exe
    Filesize

    46KB

    MD5

    a89bf20ec8b14beced21c9795063ff5d

    SHA1

    7fa675d4e3d120039a8325367c5935f3727aeddf

    SHA256

    c09e0e10bc6053236b158d615f387447f6af4a8658bcd25a8bf37f56b5d9a2ae

    SHA512

    f2b6441232352bc796a0d56e1d88db24cfe9afaef1d0a39c311991f4ee5d3a17283c41b6bf1cda2b4d395d045fa5e518a447eb660f2fe6005d15ab00c80c5142

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\RarSFX1\tamer.exe
    Filesize

    46KB

    MD5

    a89bf20ec8b14beced21c9795063ff5d

    SHA1

    7fa675d4e3d120039a8325367c5935f3727aeddf

    SHA256

    c09e0e10bc6053236b158d615f387447f6af4a8658bcd25a8bf37f56b5d9a2ae

    SHA512

    f2b6441232352bc796a0d56e1d88db24cfe9afaef1d0a39c311991f4ee5d3a17283c41b6bf1cda2b4d395d045fa5e518a447eb660f2fe6005d15ab00c80c5142

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\RarSFX1\tamer.exe
    Filesize

    46KB

    MD5

    a89bf20ec8b14beced21c9795063ff5d

    SHA1

    7fa675d4e3d120039a8325367c5935f3727aeddf

    SHA256

    c09e0e10bc6053236b158d615f387447f6af4a8658bcd25a8bf37f56b5d9a2ae

    SHA512

    f2b6441232352bc796a0d56e1d88db24cfe9afaef1d0a39c311991f4ee5d3a17283c41b6bf1cda2b4d395d045fa5e518a447eb660f2fe6005d15ab00c80c5142

    Download Submit
  • memory/4952-156-0x0000000000CE0000-0x0000000000CF2000-memory.dmp
    Filesize

    72KB

    Download
  • memory/4952-157-0x000000001C630000-0x000000001C640000-memory.dmp
    Filesize

    64KB

    Download
  • memory/4952-158-0x000000001C630000-0x000000001C640000-memory.dmp
    Filesize

    64KB

    Download