General

  • Target

    05844bc004af9194e53b16bdb3f0ba6e4f976673df78f41a86edcd437a642fa6

  • Size

    383KB

  • Sample

    220521-ppyzhsfgd3

  • MD5

    da571948c48af8e027ce7578c0470473

  • SHA1

    6f6db5dab366b78ad0029a986888fd06c3148de1

  • SHA256

    05844bc004af9194e53b16bdb3f0ba6e4f976673df78f41a86edcd437a642fa6

  • SHA512

    33ca3e708734f869eeede85fd03cf0dd21662f53e63f7bc0bfcf10649d1177790b99fc3b942cdbbf6acb005efb9f7b43419f1ba8e3626a2cfd87aad2eca80724

Malware Config

Targets

    • Target

      Request For Quotation.exe

    • Size

      422KB

    • MD5

      4e84615687a80db56bb958d06e772099

    • SHA1

      fb822d2c634a8700f263953462a30b0652c25868

    • SHA256

      cb8503881bc157b1c984dfb66a76d2ef039c723666098a917adca4d247ea03d8

    • SHA512

      9c3314c1ed528388d8b8bff7b2c9f5ade7280ff9a1f106656e93613ad5a9b1397ee3af318cbbb6731f7698fb56921a4a15a831f53a0d949079ce69323a7c7930

    • AgentTesla

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

    • AgentTesla Payload

    • ReZer0 packer

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

    • 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

    • Adds Run key to start application

    • 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

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks