Overview

overview

10

Static

static

1

0158aa84c2...2b.exe

windows7_x64

10

0158aa84c2...2b.exe

windows10-2004_x64

10

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General

  • Target

    0158aa84c26e2890a241fb43dbef52a745fcf2961661b3d670296d86bd92682b

  • Size

    218KB

  • Sample

    220523-y2hmqsehb5

  • MD5

    15e278d69ec44692ffaf07f239aac819

  • SHA1

    431d35d893067533e5af3ff4a3521d84e4833455

  • SHA256

    0158aa84c26e2890a241fb43dbef52a745fcf2961661b3d670296d86bd92682b

  • SHA512

    5a29bb6e8b569c7e72c6ce8974cd0f6823e7e71a9a3eae62b7d43c615ab8d4836160822f8f67941bff03a768a3116c83b757f24f971428a948327999dec57540

Score
10/10
discoveryevasionpersistenceransomwaresuricata

Malware Config

Targets

    • Target

      0158aa84c26e2890a241fb43dbef52a745fcf2961661b3d670296d86bd92682b

    • Size

      218KB

    • MD5

      15e278d69ec44692ffaf07f239aac819

    • SHA1

      431d35d893067533e5af3ff4a3521d84e4833455

    • SHA256

      0158aa84c26e2890a241fb43dbef52a745fcf2961661b3d670296d86bd92682b

    • SHA512

      5a29bb6e8b569c7e72c6ce8974cd0f6823e7e71a9a3eae62b7d43c615ab8d4836160822f8f67941bff03a768a3116c83b757f24f971428a948327999dec57540

    Score
    10/10
    discoveryevasionpersistenceransomwaresuricata

    • suricata: ET MALWARE Ransomware/Cerber Checkin 2

      suricata: ET MALWARE Ransomware/Cerber Checkin 2

      suricata

    • Contacts a large (3210) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

      discovery

    • Contacts a large (7554) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

      discovery

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomware

    • Modifies boot configuration data using bcdedit

      ransomwareevasion

    • Adds policy Run key to start application

      persistence

    • Executes dropped EXE

    • Checks computer location settings

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

    • Deletes itself

    • Drops startup file

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Creates a large amount of network flows

      This may indicate a network scan to discover remotely running services.

      discovery

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2
T1060

Privilege Escalation

Defense Evasion

File Deletion

2
T1107

Modify Registry

2
T1112

Credential Access

Discovery

Network Service Scanning

3
T1046

Query Registry

1
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

3
T1490

Tasks