General

  • Target

    nPurchase Order items_pdf.lzh

  • Size

    710KB

  • Sample

    240426-ygdhaabf8w

  • MD5

    af245c8f5302901a6e873b880184fd14

  • SHA1

    245a268c54cd9ec484620b94ae053c2fb191be08

  • SHA256

    55cc366d2b0519daa338373098af30bb2a52ba289212e0334eeaca8d709f0c25

  • SHA512

    cb250980aa0ed9a85d402d185c0cbf5e89c615afa508bd17dbd1885d2936c591afc1f16aa619892a0c76e30c56a525382d92045e9089556861a13e2f295bda8e

  • SSDEEP

    12288:ycmr0FNw6Ypk96areEvBPUJinppMdPTddR3H2iM9IFWDnfIGSADQw9Jggb2eq:y6FNwvOw8JvBoipqZhH2TmkDnQ+Qw52v

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.wapination.net
  • Port:
    21
  • Username:
    pop@wapination.net
  • Password:
    sync@#1235

Targets

    • Target

      Purchase Order items_pdf.scr

    • Size

      768KB

    • MD5

      4895ce225ebd6e1a8d1fca5d2b9cb9a9

    • SHA1

      dee3c9200db88bd61653893678a83669df14761c

    • SHA256

      40858de71414dce51754cc1d1098a9573e23d346c016d86e5a0492a82cb06a14

    • SHA512

      8065f45b3ba63ec25a871b4f95d3934388e2be5b2907ab82791856882d021df490d06437b3d739296004138e80d5ee2c17e296f77ec5f2fecbaa76490b4812fe

    • SSDEEP

      12288:AF2iN3MibrvsyZlZRkXN6wjp3Og9iUGtuPsfvBK1SDOQS6lv312Z3:AF1lfvs2Re6AZoU6BfvVDOQS6J312Z

    • 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 WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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.

    • 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 v13

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Tasks