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Overview

overview

10

Static

static

10

AMMYY_Admin.exe

windows7-x64

10

AMMYY_Admin.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    4a9b69734b1ff51dd357edc6addf122e43b08ea7e36d62026b4a27a8da8ad26c

  • Size

    306KB

  • Sample

    250212-285ydszkdn

  • MD5

    1eef4d3f5b8d2094ffeeb683b81bf514

  • SHA1

    085f744ae5a59616d0ed18e574c379c3731f362f

  • SHA256

    4a9b69734b1ff51dd357edc6addf122e43b08ea7e36d62026b4a27a8da8ad26c

  • SHA512

    50bf2bb6d028a4785ef2d23bcd965f721326e99581f50fc304f13e2c78386b8d2e97235164686ac95ac2c9789602a358a240f9de4adfaeee3fb7120efe2a868f

  • SSDEEP

    6144:nBu/emAB6ghBUhnV6Gae6zjunPGxnRgXukHu48hBWTntyFy4kog9x1ciqUzkhUyU:8/eBuX61eUc+gO4zkfmKiqUzkeyZm

Score
10/10
ammyyadminflawedammyyadwarediscoverypersistenceprivilege_escalationstealertrojan

Malware Config

Targets

    • Target

      AMMYY_Admin.exe

    • Size

      651KB

    • MD5

      b730e7b8f3eebd51dc21d7997313b890

    • SHA1

      57ef7a2d07f3703f84c1d7ad33e34e550d23a6fa

    • SHA256

      e4a87095c27219afe9c7a3cb01c13de899e201d2340748a5fc446207c8f99b2a

    • SHA512

      05e87e0ac0e6c097cec3e3801c66752f1a69bd3f8b732062b16596fd4e46388e66eb2e4455ede69769dad62cb7a063849cc2199c140c6ba6a498173eaafe051d

    • SSDEEP

      12288:caA9OKLSwaIN5U8xvFoRQMEoO2rx8ikfRtjIe9rtv8zl6mi/gQ:AkK+waI8JRQMEJ2rufRtse9rtv8zlBi3

    Score
    10/10
    flawedammyydiscoverytrojanadwarepersistenceprivilege_escalationstealer

    • FlawedAmmyy RAT

      Remote-access trojan based on leaked code for the Ammyy remote admin software.

      trojanflawedammyy

    • Flawedammyy family

      flawedammyy

    • 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

    • Checks computer location settings

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

    • 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

    • Checks installed software on the system

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

      discovery

    • Installs/modifies Browser Helper Object

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

      stealeradware

    • Drops file in System32 directory

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Active Setup

1
T1547.014

Browser Extensions

1
T1176

Event Triggered Execution

1
T1546

Component Object Model Hijacking

1
T1546.015

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Active Setup

1
T1547.014

Event Triggered Execution

1
T1546

Component Object Model Hijacking

1
T1546.015

Defense Evasion

Modify Registry

5
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Discovery

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