Analysis

  • max time kernel
    146s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-03-2024 02:13

General

  • Target

    411217082847be5939620211887564a0eb9bce1ba6f5cc20fc73423448270762.exe

  • Size

    680KB

  • MD5

    fb93809f3555b1c19506660419980c84

  • SHA1

    813616f86622b390721d18d3ff930175395f8b03

  • SHA256

    411217082847be5939620211887564a0eb9bce1ba6f5cc20fc73423448270762

  • SHA512

    235001349909eb1825c275beb4314420b2b116fff61a0275323bc1d3c17179884e6422c6713909d0dfce5e8074accacad8fd795a63e2ae64c56347ec0b4b7f2d

  • SSDEEP

    12288:Yma5WqsWsf0XyPDx9VcBRpdFyQIA/tnCe1nyYZvM5BgCcmwpS4bF:YiqsWstPDqTbFQxebZqw

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.ipr-co.org
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    IPRco@100102@

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects executables packed with SmartAssembly 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\411217082847be5939620211887564a0eb9bce1ba6f5cc20fc73423448270762.exe
    "C:\Users\Admin\AppData\Local\Temp\411217082847be5939620211887564a0eb9bce1ba6f5cc20fc73423448270762.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1652
    • C:\Users\Admin\AppData\Local\Temp\411217082847be5939620211887564a0eb9bce1ba6f5cc20fc73423448270762.exe
      "C:\Users\Admin\AppData\Local\Temp\411217082847be5939620211887564a0eb9bce1ba6f5cc20fc73423448270762.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3644
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4112 --field-trial-handle=2292,i,2103142837140538807,15881446839139365070,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4152

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Credential Access

    Unsecured Credentials

    4
    T1552

    Credentials In Files

    3
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Collection

    Data from Local System

    4
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\411217082847be5939620211887564a0eb9bce1ba6f5cc20fc73423448270762.exe.log
      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/1652-8-0x0000000007B40000-0x0000000007B4C000-memory.dmp
      Filesize

      48KB

    • memory/1652-3-0x0000000007880000-0x0000000007912000-memory.dmp
      Filesize

      584KB

    • memory/1652-9-0x0000000002C50000-0x0000000002CD2000-memory.dmp
      Filesize

      520KB

    • memory/1652-1-0x0000000000910000-0x00000000009C0000-memory.dmp
      Filesize

      704KB

    • memory/1652-5-0x0000000007930000-0x000000000793A000-memory.dmp
      Filesize

      40KB

    • memory/1652-6-0x0000000007B50000-0x0000000007BEC000-memory.dmp
      Filesize

      624KB

    • memory/1652-7-0x0000000007B10000-0x0000000007B22000-memory.dmp
      Filesize

      72KB

    • memory/1652-0-0x0000000074DC0000-0x0000000075570000-memory.dmp
      Filesize

      7.7MB

    • memory/1652-15-0x0000000074DC0000-0x0000000075570000-memory.dmp
      Filesize

      7.7MB

    • memory/1652-2-0x0000000007D90000-0x0000000008334000-memory.dmp
      Filesize

      5.6MB

    • memory/1652-4-0x00000000079B0000-0x00000000079C0000-memory.dmp
      Filesize

      64KB

    • memory/3644-13-0x0000000074DC0000-0x0000000075570000-memory.dmp
      Filesize

      7.7MB

    • memory/3644-14-0x0000000002DA0000-0x0000000002DB0000-memory.dmp
      Filesize

      64KB

    • memory/3644-19-0x0000000002DA0000-0x0000000002DB0000-memory.dmp
      Filesize

      64KB

    • memory/3644-16-0x0000000005500000-0x0000000005566000-memory.dmp
      Filesize

      408KB

    • memory/3644-17-0x00000000061E0000-0x0000000006230000-memory.dmp
      Filesize

      320KB

    • memory/3644-18-0x0000000074DC0000-0x0000000075570000-memory.dmp
      Filesize

      7.7MB

    • memory/3644-10-0x0000000000400000-0x0000000000440000-memory.dmp
      Filesize

      256KB