Overview

overview

10

Static

static

7

faef33856a...18.exe

windows7-x64

10

faef33856a...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    faef33856a369132191698c0a840528b_JaffaCakes118

  • Size

    4.5MB

  • Sample

    240419-xdck5sdb91

  • MD5

    faef33856a369132191698c0a840528b

  • SHA1

    3a19eb9fa03fe8aa7103632ce21cfb3a31a9d252

  • SHA256

    bca6174060b7300acd77e73eafa87810ae6939dff2216c19d1e9c162730ad579

  • SHA512

    91f5f128ecf241f3e09b72e0783449c1ce348351474b57b745beda1ea1f1199fd64c1ed260ae643cfae403b715dea982e8170bf576a3d724148591c2938fb2b3

  • SSDEEP

    49152:Kwi0L0q10g7mM+M6RkMkIM7I0674B8NIMI8Sfpwotkzaxc1OGz8r:Vi0iM+M6RkMkIM7oIMzKpXOMGQr

Score
10/10
aspackv2persistenceransomware

Malware Config

Targets

    • Target

      faef33856a369132191698c0a840528b_JaffaCakes118

    • Size

      4.5MB

    • MD5

      faef33856a369132191698c0a840528b

    • SHA1

      3a19eb9fa03fe8aa7103632ce21cfb3a31a9d252

    • SHA256

      bca6174060b7300acd77e73eafa87810ae6939dff2216c19d1e9c162730ad579

    • SHA512

      91f5f128ecf241f3e09b72e0783449c1ce348351474b57b745beda1ea1f1199fd64c1ed260ae643cfae403b715dea982e8170bf576a3d724148591c2938fb2b3

    • SSDEEP

      49152:Kwi0L0q10g7mM+M6RkMkIM7I0674B8NIMI8Sfpwotkzaxc1OGz8r:Vi0iM+M6RkMkIM7oIMzKpXOMGQr

    Score
    10/10
    aspackv2persistenceransomware

    • Modifies WinLogon for persistence

      persistence

    • Renames multiple (91) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • ASPack v2.12-2.42

      Detects executables packed with ASPack v2.12-2.42

      aspackv2

    • Drops startup file

    • Executes dropped EXE

    • 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 v13

Initial Access

Replication Through Removable Media

1
T1091

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Winlogon Helper DLL

1
T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Winlogon Helper DLL

1
T1547.004

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

Resource Development

Reconnaissance

Tasks