Overview

overview

10

Static

static

10

ClientH.exe

windows7-x64

10

ClientH.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    ClientH.exe

  • Size

    90KB

  • Sample

    230806-gssb5sgb66

  • MD5

    5558467d200c00a5acab51d4a9ca98dd

  • SHA1

    f9d50c3556451b056deb0950b6bdd4c3ecbb570f

  • SHA256

    213452a323be1617cfa62abeae43d873bec1e5c740aa2177e157a9772a92f231

  • SHA512

    80167cbf7301726ef6a1fd8f2c91db4076f5f5c869338953b1dacc88bf7f82e7caadabbbf32ecda3327c1be4c9da2477a198123a9ac1acf114f03c64bada3921

  • SSDEEP

    1536:ebRiQMhQ57SK3bUzZdQ1iIMvnZlbLxjV3AGq5gWlocT1wzySsd9NJ33p:ebRF57SKsstcnZTJQDgWPaySsdH5Z

Score
10/10
arrowratvenomhvncpersistencerat

Malware Config

Extracted

Family

arrowrat

Botnet

VenomHVNC

C2

185.183.35.122:4448

Mutex

GHAEYKXuf.exe

Targets

    • Target

      ClientH.exe

    • Size

      90KB

    • MD5

      5558467d200c00a5acab51d4a9ca98dd

    • SHA1

      f9d50c3556451b056deb0950b6bdd4c3ecbb570f

    • SHA256

      213452a323be1617cfa62abeae43d873bec1e5c740aa2177e157a9772a92f231

    • SHA512

      80167cbf7301726ef6a1fd8f2c91db4076f5f5c869338953b1dacc88bf7f82e7caadabbbf32ecda3327c1be4c9da2477a198123a9ac1acf114f03c64bada3921

    • SSDEEP

      1536:ebRiQMhQ57SK3bUzZdQ1iIMvnZlbLxjV3AGq5gWlocT1wzySsd9NJ33p:ebRF57SKsstcnZTJQDgWPaySsdH5Z

    Score
    10/10
    arrowratvenomhvncpersistencerat

    • ArrowRat

      Remote access tool with various capabilities first seen in late 2021.

      ratarrowrat

    • Modifies WinLogon for persistence

      persistence

    • Modifies Installed Components in the registry

      persistence

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Defense Evasion

Modify Registry

3
T1112

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks