Analysis

  • max time kernel
    143s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-12-2023 01:55

General

  • Target

    Purchase Order.exe

  • Size

    646KB

  • MD5

    fd4f5db156867b51baf72ce10cb1a486

  • SHA1

    d1c1ce8f0bf2bb7445610333ded67c4759209289

  • SHA256

    1ff764ec5a79ed2072a558af6de49b863e9e5683e63b3c070e86c9d1b7814f4d

  • SHA512

    f013a7c900d5f11fe041d88423c07efcbf31fcdc400da00db8be661ddedd5f7913083c3faf5ee6d49ab97741389a21e82c2050870677afc3383b7d5436bc92cb

  • SSDEEP

    12288:aH3IU8S6eUdsifKXhLvlg8J3PE1Nfjhm6MqOdWK3TLiMl:aXItSAdsiohRgWYHmaOMK33Bl

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect ZGRat V1 1 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • 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.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3388
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:640

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Purchase Order.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/640-11-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/640-20-0x00000000052C0000-0x00000000052D0000-memory.dmp

    Filesize

    64KB

  • memory/640-19-0x00000000747B0000-0x0000000074F60000-memory.dmp

    Filesize

    7.7MB

  • memory/640-18-0x00000000069F0000-0x0000000006A40000-memory.dmp

    Filesize

    320KB

  • memory/640-17-0x0000000005480000-0x00000000054E6000-memory.dmp

    Filesize

    408KB

  • memory/640-15-0x00000000052C0000-0x00000000052D0000-memory.dmp

    Filesize

    64KB

  • memory/640-14-0x00000000747B0000-0x0000000074F60000-memory.dmp

    Filesize

    7.7MB

  • memory/3388-10-0x0000000006C30000-0x0000000006CCC000-memory.dmp

    Filesize

    624KB

  • memory/3388-9-0x0000000003050000-0x00000000030CA000-memory.dmp

    Filesize

    488KB

  • memory/3388-0-0x0000000000B70000-0x0000000000C18000-memory.dmp

    Filesize

    672KB

  • memory/3388-8-0x0000000005860000-0x000000000586A000-memory.dmp

    Filesize

    40KB

  • memory/3388-7-0x0000000005850000-0x0000000005858000-memory.dmp

    Filesize

    32KB

  • memory/3388-6-0x00000000057D0000-0x00000000057E8000-memory.dmp

    Filesize

    96KB

  • memory/3388-5-0x0000000005600000-0x000000000560A000-memory.dmp

    Filesize

    40KB

  • memory/3388-16-0x00000000747B0000-0x0000000074F60000-memory.dmp

    Filesize

    7.7MB

  • memory/3388-4-0x0000000005800000-0x0000000005810000-memory.dmp

    Filesize

    64KB

  • memory/3388-3-0x00000000056C0000-0x0000000005752000-memory.dmp

    Filesize

    584KB

  • memory/3388-2-0x0000000005BD0000-0x0000000006174000-memory.dmp

    Filesize

    5.6MB

  • memory/3388-1-0x00000000747B0000-0x0000000074F60000-memory.dmp

    Filesize

    7.7MB