Analysis

  • max time kernel
    138s
  • 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
    08-12-2023 02:04

General

  • Target

    c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe

  • Size

    46KB

  • MD5

    e6a54ac9fc726f9e97bf504300cce3b2

  • SHA1

    735ef8962bd6a9e4f45d7b9e03d6b5066923bfd5

  • SHA256

    c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1

  • SHA512

    ca5ac209f710e7a7d9fbf2d32258548afe757b149869d68257bd4fda6499c78c9174e4763991f1b6c27846038a6c286b3f465643b57bf8e1bfb19a7f48a24f5a

  • SSDEEP

    768:ebFP85m9v/hW+i20vMu/eDFxm5a2pc1SdwBLObtNGF58b60sADZEpYinAMxK6dQ:eRP8ka+BuCxiaY/SB4LGH06gi7HxLdQ

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6414995176:AAGuFTS3tKhdeIu6sCNhCNw8cv7vkPJh1TQ/

Signatures

  • AgentTesla

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

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe
    "C:\Users\Admin\AppData\Local\Temp\c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4024
    • C:\Users\Admin\AppData\Local\Temp\c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe
      C:\Users\Admin\AppData\Local\Temp\c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1076

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\c552b8ecaf95f50de9d1bd6e73bd241227d202b483cc6f9179d9a9b88ad796a1.exe.log

    Filesize

    1KB

    MD5

    489c7565f9b029ba9fadff774073cc98

    SHA1

    56c05089b33ee7e7dfa9e6a2d098164efd8e1150

    SHA256

    10bf6242da02dad8b2e1208b9dab9a7303cf986320e05e5ef20b99c9b71326d4

    SHA512

    ddea09c011a8d4f85905842c2f34c98add0110a0b6b3b2709718c3614a2c42dec5f4f5d5b9442cfd3c6c23e9a90c8c0b25c14c3dbd42faea9cc8dd232cace1ac

  • memory/1076-14-0x0000000005490000-0x00000000054F6000-memory.dmp

    Filesize

    408KB

  • memory/1076-13-0x00000000753B0000-0x0000000075B60000-memory.dmp

    Filesize

    7.7MB

  • memory/1076-18-0x00000000753B0000-0x0000000075B60000-memory.dmp

    Filesize

    7.7MB

  • memory/1076-17-0x0000000006A00000-0x0000000006A0A000-memory.dmp

    Filesize

    40KB

  • memory/1076-9-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1076-16-0x0000000006A30000-0x0000000006AC2000-memory.dmp

    Filesize

    584KB

  • memory/1076-15-0x00000000067B0000-0x000000000684C000-memory.dmp

    Filesize

    624KB

  • memory/4024-1-0x00000000753B0000-0x0000000075B60000-memory.dmp

    Filesize

    7.7MB

  • memory/4024-5-0x0000000006360000-0x00000000063A0000-memory.dmp

    Filesize

    256KB

  • memory/4024-12-0x00000000753B0000-0x0000000075B60000-memory.dmp

    Filesize

    7.7MB

  • memory/4024-7-0x00000000069F0000-0x0000000006F94000-memory.dmp

    Filesize

    5.6MB

  • memory/4024-0-0x0000000000520000-0x0000000000530000-memory.dmp

    Filesize

    64KB

  • memory/4024-2-0x0000000004F90000-0x0000000004F96000-memory.dmp

    Filesize

    24KB

  • memory/4024-6-0x00000000063A0000-0x00000000063EC000-memory.dmp

    Filesize

    304KB

  • memory/4024-4-0x0000000006300000-0x0000000006342000-memory.dmp

    Filesize

    264KB

  • memory/4024-3-0x0000000006190000-0x00000000061EA000-memory.dmp

    Filesize

    360KB