Analysis

  • max time kernel
    142s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2023 02:55

General

  • Target

    5f849dcbc164231e9b8d15845c0e21f4de3dcbc2c44c49eedb38bc2fefac09c0.exe

  • Size

    741KB

  • MD5

    0241edc90faddac63e16747eb0762ea8

  • SHA1

    0ecbf9a7faa6262d8d70df11389c3e9105e29f0d

  • SHA256

    5f849dcbc164231e9b8d15845c0e21f4de3dcbc2c44c49eedb38bc2fefac09c0

  • SHA512

    85c59e45d5ec7755720427aa1ef6651a8dda267ad86f5a227a2e69fdca987fcf6e49113ef370ba3114a4993fd650fce94ab4743531f3c69598f84e98fafec6af

  • SSDEEP

    12288:J1CFQELXGkJlv7tNtE8EN6w7yTRhjwFf0IGJVDa4wNsiMoEi:J1CFQQ2k7v7xNNTRhUZ0IuePNsNoEi

Malware Config

Extracted

Family

agenttesla

C2

https://discord.com/api/webhooks/1176151058632937522/y3_ZQ9r_IRjvTwuuG-qOGBsgjULALJ5GOiLifCNfXyDDpjQXVdGAXe9Pwh2OfkhBFusI

Signatures

  • AgentTesla

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

  • 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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5f849dcbc164231e9b8d15845c0e21f4de3dcbc2c44c49eedb38bc2fefac09c0.exe
    "C:\Users\Admin\AppData\Local\Temp\5f849dcbc164231e9b8d15845c0e21f4de3dcbc2c44c49eedb38bc2fefac09c0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3240
    • C:\Users\Admin\AppData\Local\Temp\5f849dcbc164231e9b8d15845c0e21f4de3dcbc2c44c49eedb38bc2fefac09c0.exe
      "C:\Users\Admin\AppData\Local\Temp\5f849dcbc164231e9b8d15845c0e21f4de3dcbc2c44c49eedb38bc2fefac09c0.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2064
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2064 -s 2236
        3⤵
        • Program crash
        PID:1492
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2064 -ip 2064
    1⤵
      PID:1216

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\5f849dcbc164231e9b8d15845c0e21f4de3dcbc2c44c49eedb38bc2fefac09c0.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/2064-11-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2064-19-0x00000000747F0000-0x0000000074FA0000-memory.dmp

      Filesize

      7.7MB

    • memory/2064-18-0x0000000006660000-0x00000000066B0000-memory.dmp

      Filesize

      320KB

    • memory/2064-16-0x0000000005060000-0x0000000005070000-memory.dmp

      Filesize

      64KB

    • memory/2064-17-0x0000000004F90000-0x0000000004FF6000-memory.dmp

      Filesize

      408KB

    • memory/2064-15-0x00000000747F0000-0x0000000074FA0000-memory.dmp

      Filesize

      7.7MB

    • memory/3240-4-0x0000000004DA0000-0x0000000004DB0000-memory.dmp

      Filesize

      64KB

    • memory/3240-8-0x0000000004E40000-0x0000000004E46000-memory.dmp

      Filesize

      24KB

    • memory/3240-9-0x00000000023D0000-0x00000000023DA000-memory.dmp

      Filesize

      40KB

    • memory/3240-10-0x00000000077B0000-0x0000000007838000-memory.dmp

      Filesize

      544KB

    • memory/3240-7-0x0000000005160000-0x0000000005178000-memory.dmp

      Filesize

      96KB

    • memory/3240-6-0x0000000004E50000-0x0000000004EEC000-memory.dmp

      Filesize

      624KB

    • memory/3240-14-0x00000000747F0000-0x0000000074FA0000-memory.dmp

      Filesize

      7.7MB

    • memory/3240-5-0x0000000004D30000-0x0000000004D3A000-memory.dmp

      Filesize

      40KB

    • memory/3240-0-0x00000000000E0000-0x00000000001A0000-memory.dmp

      Filesize

      768KB

    • memory/3240-3-0x0000000004B70000-0x0000000004C02000-memory.dmp

      Filesize

      584KB

    • memory/3240-2-0x00000000051E0000-0x0000000005784000-memory.dmp

      Filesize

      5.6MB

    • memory/3240-1-0x00000000747F0000-0x0000000074FA0000-memory.dmp

      Filesize

      7.7MB