Analysis

  • max time kernel
    119s
  • max time network
    56s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    22-07-2021 08:02

General

  • Target

    a5da6bea30981185e9dadaaa06ccf45b.exe

  • Size

    493KB

  • MD5

    a5da6bea30981185e9dadaaa06ccf45b

  • SHA1

    3166d96dc5c719df87abc726ee1b8785ef8ee7d8

  • SHA256

    efb3cc17330b519d970353a2f8da8ab9a10abbed7fb5ac099bd4ed575ba21fa5

  • SHA512

    e96090c6cd989cccb310d40401bde54eb5db77a2311d5d12b04471cce56d7af589d079230566f0dab873ff80d89319f846a2c6f4e9adfdf9a925361c19df33f0

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot1846829589:AAHSsEDTKvDOQ17YrNRY5_FXv5z4mpfGRIc/sendDocument

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a5da6bea30981185e9dadaaa06ccf45b.exe
    "C:\Users\Admin\AppData\Local\Temp\a5da6bea30981185e9dadaaa06ccf45b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1208
    • C:\Users\Admin\AppData\Local\Temp\a5da6bea30981185e9dadaaa06ccf45b.exe
      C:\Users\Admin\AppData\Local\Temp\a5da6bea30981185e9dadaaa06ccf45b.exe
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:524

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/524-68-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/524-69-0x000000000043774E-mapping.dmp
  • memory/524-70-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/524-72-0x00000000048A0000-0x00000000048A1000-memory.dmp
    Filesize

    4KB

  • memory/524-73-0x00000000048A1000-0x00000000048A2000-memory.dmp
    Filesize

    4KB

  • memory/1208-59-0x0000000000330000-0x0000000000331000-memory.dmp
    Filesize

    4KB

  • memory/1208-61-0x0000000004CB0000-0x0000000004CB1000-memory.dmp
    Filesize

    4KB

  • memory/1208-62-0x0000000002080000-0x00000000020D4000-memory.dmp
    Filesize

    336KB

  • memory/1208-67-0x0000000005A80000-0x0000000005AEB000-memory.dmp
    Filesize

    428KB