General

  • Target

    2b96a8e4b300395370ead750ded41da3a8ae6d546e284a87440ea870de86186b

  • Size

    479KB

  • Sample

    220521-n7j3mshhfk

  • MD5

    dcd2763be50611d83c63d53db30158e0

  • SHA1

    81702e1fb3c9f94c913112c562ae9e5f4d6e2e71

  • SHA256

    2b96a8e4b300395370ead750ded41da3a8ae6d546e284a87440ea870de86186b

  • SHA512

    1bf68274e436b6dfedfcd04640cb72145abe7db232bc6a7c9115c52f64f9b40bbe08a1d23747429e5662cb3b3cb2a925570fe31f58670915109dd73cc13a3c78

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    billions@cairoways.me
  • Password:
    Whyworry90#

Targets

    • Target

      TBL PAYMENT COPY.exe

    • Size

      527KB

    • MD5

      6379567925c7097a49aa88e9b0981f95

    • SHA1

      ffb42a0da0e7855ecc339abb944f79e3597e6bd2

    • SHA256

      10b2155331d3b0c7934808e52084c3911f82ece51f39836e3ef0e8db39ee9904

    • SHA512

      c0b45c606cadd64144a9a0b8722582a045c7d3a358769e896b6d9245cfe3ee92bc7daab5d4459f3815bc12fc0e57d3582686cbb3dc73777e33f25f9396163c4f

    • AgentTesla

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

    • CoreEntity .NET Packer

      A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

    • SnakeBOT

      SnakeBOT is a heavily obfuscated .NET downloader.

    • AgentTesla Payload

    • Contains SnakeBOT related strings

    • ReZer0 packer

      Detects ReZer0, a packer with multiple versions used in various campaigns.

    • Checks computer location settings

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

    • Accesses Microsoft Outlook profiles

    • 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

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Email Collection

1
T1114

Tasks