General

  • Target

    Payment Transfer.rar

  • Size

    641KB

  • Sample

    221128-nyg7pafe6w

  • MD5

    f1f5eb3c650e0949e5f3061f3f731521

  • SHA1

    ca044d17dd588495188316f54dfbec7afd3a37af

  • SHA256

    3e81f3f5c0ec036c7acfa135644e604361f0f3996d90d338828957d9041d48b9

  • SHA512

    92384093834ed46f31a8c7102c1a734583cc0ea565c4e8379af801fbe17f3277c5f3ae7b93a4ad5d40d3635e9240cce5a3c010ec5ea0e27d92ab9cf256529c96

  • SSDEEP

    12288:8ilW/wbA8qPnLdzF+6D3j9o9Yi6Y5bJ8i4RrgSPvCitGA/:8OW/MGLd5/g+Y5bJ+RgsJv/

Malware Config

Targets

    • Target

      2211.exe

    • Size

      653KB

    • MD5

      aeb1becc0f251e643e27c95d2fa1d91b

    • SHA1

      f14bbc296f1da0a6e11993286871f2e9bacff72c

    • SHA256

      8cdd2376c22a3f37faafe3a39f3730b7c03c9e641b729607ca2b083abbc3f05e

    • SHA512

      0f2f2d370b257796b73f227adb055bfdd57621f34198cfabf66eef1dee43c5904263f32a7ce699ef716709dd3119b46639726e571e495533f15a2e8c403c9dec

    • SSDEEP

      12288:ggF5Mgmsq8We1+CGGpKw65AHm9RCBT3g5AnttzyrMNkaM8:ggF5asqb+BFV2RKT/ntMMKaM8

    • AgentTesla

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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks