General

  • Target

    CONTRACT #683793.exe

  • Size

    966KB

  • Sample

    221126-17xpysch7t

  • MD5

    20fc35db368eec91fa1068dc03147015

  • SHA1

    50ad1f61e404b32795bc7c1a84bf66e1bc424182

  • SHA256

    52f21a43347e87dc80a1c50c97e68535687bc95425289b5797e59d96b7edcd57

  • SHA512

    294ac1dc9800d2caf47c0932ca33d039fc10088b10cd5ebc9d28dd1857d77826b0cb07c8dcabb964b34b51a12e611f26851ef6132260220f329dc5a4e1822a1b

  • SSDEEP

    24576:sCOqU376Cs7kFgJCUVsuICz/B38/qjI9J0zRT8WWSig+IyXt:srMkbkstmJ3eqj9RJWSigAX

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      CONTRACT #683793.exe

    • Size

      966KB

    • MD5

      20fc35db368eec91fa1068dc03147015

    • SHA1

      50ad1f61e404b32795bc7c1a84bf66e1bc424182

    • SHA256

      52f21a43347e87dc80a1c50c97e68535687bc95425289b5797e59d96b7edcd57

    • SHA512

      294ac1dc9800d2caf47c0932ca33d039fc10088b10cd5ebc9d28dd1857d77826b0cb07c8dcabb964b34b51a12e611f26851ef6132260220f329dc5a4e1822a1b

    • SSDEEP

      24576:sCOqU376Cs7kFgJCUVsuICz/B38/qjI9J0zRT8WWSig+IyXt:srMkbkstmJ3eqj9RJWSigAX

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • Checks computer location settings

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

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses Microsoft Outlook profiles

    • 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

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks