Overview

overview

10

Static

static

8

3b99391d69...4d.exe

windows7_x64

10

3b99391d69...4d.exe

windows10-2004_x64

10

Sharing

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General

  • Target

    3b99391d69a827abeb48c5886c5a7108dfe7dfd79371947b31e126a3a3b5dc4d

  • Size

    810KB

  • Sample

    220703-maq91sehgj

  • MD5

    f39c1d7c5cfde8d8b9dcac2678ed7e37

  • SHA1

    0ddfc33907c9152ad7a181b5f31bffe07e0f9825

  • SHA256

    3b99391d69a827abeb48c5886c5a7108dfe7dfd79371947b31e126a3a3b5dc4d

  • SHA512

    8fbc98f677d43ff38f655edfca786fda04e2db1cede309b01745805bc2bea33d135efe418a93c67553f35eaf61ebc067ff953f1e18d01a0e917601f5e3a5f363

Score
10/10
aspackv2persistence

Malware Config

Targets

    • Target

      3b99391d69a827abeb48c5886c5a7108dfe7dfd79371947b31e126a3a3b5dc4d

    • Size

      810KB

    • MD5

      f39c1d7c5cfde8d8b9dcac2678ed7e37

    • SHA1

      0ddfc33907c9152ad7a181b5f31bffe07e0f9825

    • SHA256

      3b99391d69a827abeb48c5886c5a7108dfe7dfd79371947b31e126a3a3b5dc4d

    • SHA512

      8fbc98f677d43ff38f655edfca786fda04e2db1cede309b01745805bc2bea33d135efe418a93c67553f35eaf61ebc067ff953f1e18d01a0e917601f5e3a5f363

    Score
    10/10
    aspackv2persistence

    • Modifies WinLogon for persistence

      persistence

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

      aspackv2

    • Executes dropped EXE

    • Drops startup file

    • Loads dropped DLL

    • Enumerates connected drives

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

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Replication Through Removable Media

1
T1091

Execution

Persistence

Winlogon Helper DLL

1
T1004

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Lateral Movement

Replication Through Removable Media

1
T1091

Collection

Exfiltration

Command and Control

Impact

Tasks