Overview

overview

10

Static

static

8

bac325eb84...bc.exe

windows7-x64

10

bac325eb84...bc.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    bac325eb84d39b4f17dd53c7f9c3a1187fdd33ea169920640bb0284c5fb3c5bc

  • Size

    42KB

  • Sample

    221129-hny5kafa59

  • MD5

    a4ffa86f2f2bd79d6620f3762f3717dc

  • SHA1

    c91221cd293a2e13b592150006e4c395c8439333

  • SHA256

    bac325eb84d39b4f17dd53c7f9c3a1187fdd33ea169920640bb0284c5fb3c5bc

  • SHA512

    632d5c3398da059336d51f83c5335a26858eee255f5d29067ec5f86f3ef345f1ed467cdf6e09c98b474f199122e1046765df606f8b0cbe0ede77290bff41eaa4

  • SSDEEP

    768:gyz0/XBwayCUOwV3TNZHdrPeqzEWvpbPwSMX6+w6pqZxLdeVgol9D8888888888x:hzOCay4wV339rPjzbpLwRJ9pSdoIE

Score
10/10
aspackv2evasionpersistence

Malware Config

Targets

    • Target

      bac325eb84d39b4f17dd53c7f9c3a1187fdd33ea169920640bb0284c5fb3c5bc

    • Size

      42KB

    • MD5

      a4ffa86f2f2bd79d6620f3762f3717dc

    • SHA1

      c91221cd293a2e13b592150006e4c395c8439333

    • SHA256

      bac325eb84d39b4f17dd53c7f9c3a1187fdd33ea169920640bb0284c5fb3c5bc

    • SHA512

      632d5c3398da059336d51f83c5335a26858eee255f5d29067ec5f86f3ef345f1ed467cdf6e09c98b474f199122e1046765df606f8b0cbe0ede77290bff41eaa4

    • SSDEEP

      768:gyz0/XBwayCUOwV3TNZHdrPeqzEWvpbPwSMX6+w6pqZxLdeVgol9D8888888888x:hzOCay4wV339rPjzbpLwRJ9pSdoIE

    Score
    10/10
    aspackv2evasionpersistence

    • Modifies WinLogon for persistence

      persistence

    • Modifies visibility of file extensions in Explorer

      evasion

    • Modifies visiblity of hidden/system files in Explorer

      evasion

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

      aspackv2

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1
T1004

Hidden Files and Directories

2
T1158

Privilege Escalation

Defense Evasion

Modify Registry

4
T1112

Hidden Files and Directories

2
T1158

Credential Access

Discovery

Query Registry

4
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks