Overview

overview

10

Static

static

3

b030a9aaa2...0c.exe

windows7-x64

10

b030a9aaa2...0c.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    b030a9aaa27be2c9db6c0f15e95626025f51430466b13a196908b1ec4172160c.exe

  • Size

    8.4MB

  • Sample

    240617-w8fevatcrq

  • MD5

    3c6fd2d056ed6d09b0ac9d34de202353

  • SHA1

    a79a8b9c0092266e0388a6dc9941667ef208b233

  • SHA256

    b030a9aaa27be2c9db6c0f15e95626025f51430466b13a196908b1ec4172160c

  • SHA512

    dd2b0c97ed39add7ffda1b6fbc552daad7385eef3ff5f82068c419a674fa92c07e853f523ced0da2705b6dc922b086f89b10682e335ecc1e7966a8247e2d7614

  • SSDEEP

    196608:jth2KKRkb+gKVAECO4GZM7b2qiTzRUxgVkdMOwEvz2VcPxgC:z2rk+ggAEp/CbQKxgcM5ymcpgC

Score
10/10
asyncratnjrat05kan24discoveryevasionpersistencerattrojan

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

05KAN24

C2

4Mekey.myftp.biz:8848

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

njrat

Version

im523

Botnet

05KAN24

C2

4mekey.myftp.biz:1124

Mutex

8574ec729578662a3d2b4a9c0c2f21d3

Attributes
  • reg_key

    8574ec729578662a3d2b4a9c0c2f21d3

  • splitter

    |'|'|

Targets

    • Target

      b030a9aaa27be2c9db6c0f15e95626025f51430466b13a196908b1ec4172160c.exe

    • Size

      8.4MB

    • MD5

      3c6fd2d056ed6d09b0ac9d34de202353

    • SHA1

      a79a8b9c0092266e0388a6dc9941667ef208b233

    • SHA256

      b030a9aaa27be2c9db6c0f15e95626025f51430466b13a196908b1ec4172160c

    • SHA512

      dd2b0c97ed39add7ffda1b6fbc552daad7385eef3ff5f82068c419a674fa92c07e853f523ced0da2705b6dc922b086f89b10682e335ecc1e7966a8247e2d7614

    • SSDEEP

      196608:jth2KKRkb+gKVAECO4GZM7b2qiTzRUxgVkdMOwEvz2VcPxgC:z2rk+ggAEp/CbQKxgcM5ymcpgC

    Score
    10/10
    asyncratnjrat05kan24discoveryevasionpersistencerattrojan

    • AsyncRat

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

      ratasyncrat

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

      trojannjrat

    • Modifies Windows Firewall

      evasion

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

3
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks