Overview

overview

10

Static

static

3

JaffaCakes...98.exe

windows7-x64

10

JaffaCakes...98.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_f8aa0f8b8dc1527724ba768a89e98798

  • Size

    220KB

  • Sample

    250214-rdywgsymcp

  • MD5

    f8aa0f8b8dc1527724ba768a89e98798

  • SHA1

    5eb2eb5cc9cb90108b69991c604eb5c4836d549f

  • SHA256

    3eeb1fe9f42d01fa2162121c8a37f1360af818be5e41cb0a52e7fbe5877b484c

  • SHA512

    ac3b0513a2ba9887f7d99c19ba0804ec4c546a8a0424042d648abf24a113c0b4f51bd91955952b77127d95f5063e7bc664e1991199bf830f704a70d5bf25a4ed

  • SSDEEP

    3072:b3S8Iy/aNagTeo6isinQ6ZmQGU0yS+y2Q18mn6FEG57:VRri1z0ySL2Q18A6Ft5

Score
10/10
expiroadwarebackdoordiscoverypersistenceprivilege_escalationstealer

Malware Config

Targets

    • Target

      JaffaCakes118_f8aa0f8b8dc1527724ba768a89e98798

    • Size

      220KB

    • MD5

      f8aa0f8b8dc1527724ba768a89e98798

    • SHA1

      5eb2eb5cc9cb90108b69991c604eb5c4836d549f

    • SHA256

      3eeb1fe9f42d01fa2162121c8a37f1360af818be5e41cb0a52e7fbe5877b484c

    • SHA512

      ac3b0513a2ba9887f7d99c19ba0804ec4c546a8a0424042d648abf24a113c0b4f51bd91955952b77127d95f5063e7bc664e1991199bf830f704a70d5bf25a4ed

    • SSDEEP

      3072:b3S8Iy/aNagTeo6isinQ6ZmQGU0yS+y2Q18mn6FEG57:VRri1z0ySL2Q18A6Ft5

    Score
    10/10
    expirobackdoordiscoverypersistenceadwareprivilege_escalationstealer

    • Expiro family

      expiro

    • Expiro, m0yv

      Expiro aka m0yv is a multi-functional backdoor written in C++.

      backdoorexpiro

    • Expiro payload

      backdoor

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

      persistence

    • Downloads MZ/PE file

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

      persistenceprivilege_escalation

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery

    • Enumerates connected drives

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

    • Installs/modifies Browser Helper Object

      BHOs are DLL modules which act as plugins for Internet Explorer.

      stealeradware

    • Modifies WinLogon

      persistence

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

3
T1547

Active Setup

1
T1547.014

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Browser Extensions

1
T1176

Event Triggered Execution

1
T1546

Component Object Model Hijacking

1
T1546.015

Privilege Escalation

Boot or Logon Autostart Execution

3
T1547

Active Setup

1
T1547.014

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

1
T1546

Component Object Model Hijacking

1
T1546.015

Defense Evasion

Modify Registry

6
T1112

Credential Access

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

3
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks