Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-10-2023 13:04

General

  • Target

    Remittance Copy 101.exe

  • Size

    1.1MB

  • MD5

    afa11589139cc3af4a7387aea75eb857

  • SHA1

    c79d8be86a5062c75d532c0ce93f2e8174a3831d

  • SHA256

    d35dce5a33e43611c39ea134ece8746a4192f1bfd8c1577d7ebd77c0ebd66120

  • SHA512

    8841af140306dbab500d2f34332fabc6b6c464bafd014dca8c9c93b92cfcddbfff25c9677d47e23060be75c2e7e1ef12a38ebd2d2f7a19b307aac2bb8165736c

  • SSDEEP

    12288:hFu1U9go+prxvTK09LYAkrL1zrG2Gj6DJxRpKc8FbUJ4YVLyi:Hu1UW1IhzRGjK7Rpz8FbUJ4YA

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.cbinet.net
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    G@hungu2020

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Remittance Copy 101.exe
    "C:\Users\Admin\AppData\Local\Temp\Remittance Copy 101.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3484
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XhLQnVFQIqnW.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2380
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XhLQnVFQIqnW" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB12.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4080
    • C:\Users\Admin\AppData\Local\Temp\Remittance Copy 101.exe
      "C:\Users\Admin\AppData\Local\Temp\Remittance Copy 101.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4824

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_opay4un4.3nx.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpB12.tmp
    Filesize

    1KB

    MD5

    aea6ab3173b4faadbfcfe2cdf8678fe9

    SHA1

    de7b8d5cf7ef451a78d7c16f60cce96fa8c27865

    SHA256

    5dae38b33a22712c01a64363f7c1f116214669ea0419ddfd300bc9a40ffc56a5

    SHA512

    0a914c14610f422bf0ecd02304ea70d4a0cae19f510722a2fc7291f06a29400853b3fcb01e57939b9c676b6f78576c6a71f3c237f76e08be426b22c7de59d365

  • memory/2380-28-0x0000000005E60000-0x0000000005EC6000-memory.dmp
    Filesize

    408KB

  • memory/2380-66-0x0000000007A20000-0x0000000007A34000-memory.dmp
    Filesize

    80KB

  • memory/2380-71-0x0000000074E50000-0x0000000075600000-memory.dmp
    Filesize

    7.7MB

  • memory/2380-68-0x0000000007B00000-0x0000000007B08000-memory.dmp
    Filesize

    32KB

  • memory/2380-67-0x0000000007B20000-0x0000000007B3A000-memory.dmp
    Filesize

    104KB

  • memory/2380-65-0x0000000007A10000-0x0000000007A1E000-memory.dmp
    Filesize

    56KB

  • memory/2380-64-0x0000000005020000-0x0000000005030000-memory.dmp
    Filesize

    64KB

  • memory/2380-63-0x0000000005020000-0x0000000005030000-memory.dmp
    Filesize

    64KB

  • memory/2380-62-0x00000000079C0000-0x00000000079D1000-memory.dmp
    Filesize

    68KB

  • memory/2380-61-0x0000000007A40000-0x0000000007AD6000-memory.dmp
    Filesize

    600KB

  • memory/2380-16-0x0000000074E50000-0x0000000075600000-memory.dmp
    Filesize

    7.7MB

  • memory/2380-17-0x0000000005020000-0x0000000005030000-memory.dmp
    Filesize

    64KB

  • memory/2380-18-0x0000000004ED0000-0x0000000004F06000-memory.dmp
    Filesize

    216KB

  • memory/2380-60-0x0000000074E50000-0x0000000075600000-memory.dmp
    Filesize

    7.7MB

  • memory/2380-59-0x0000000007830000-0x000000000783A000-memory.dmp
    Filesize

    40KB

  • memory/2380-57-0x00000000077C0000-0x00000000077DA000-memory.dmp
    Filesize

    104KB

  • memory/2380-22-0x0000000005660000-0x0000000005C88000-memory.dmp
    Filesize

    6.2MB

  • memory/2380-39-0x0000000005ED0000-0x0000000006224000-memory.dmp
    Filesize

    3.3MB

  • memory/2380-55-0x00000000074B0000-0x0000000007553000-memory.dmp
    Filesize

    652KB

  • memory/2380-26-0x00000000053E0000-0x0000000005402000-memory.dmp
    Filesize

    136KB

  • memory/2380-27-0x0000000005D00000-0x0000000005D66000-memory.dmp
    Filesize

    408KB

  • memory/2380-54-0x0000000006A60000-0x0000000006A7E000-memory.dmp
    Filesize

    120KB

  • memory/2380-19-0x0000000005020000-0x0000000005030000-memory.dmp
    Filesize

    64KB

  • memory/2380-44-0x0000000070AD0000-0x0000000070B1C000-memory.dmp
    Filesize

    304KB

  • memory/2380-56-0x0000000007E10000-0x000000000848A000-memory.dmp
    Filesize

    6.5MB

  • memory/2380-40-0x00000000064B0000-0x00000000064CE000-memory.dmp
    Filesize

    120KB

  • memory/2380-41-0x0000000006550000-0x000000000659C000-memory.dmp
    Filesize

    304KB

  • memory/2380-42-0x0000000005020000-0x0000000005030000-memory.dmp
    Filesize

    64KB

  • memory/2380-43-0x0000000006A80000-0x0000000006AB2000-memory.dmp
    Filesize

    200KB

  • memory/3484-7-0x0000000005760000-0x000000000577C000-memory.dmp
    Filesize

    112KB

  • memory/3484-0-0x0000000074E50000-0x0000000075600000-memory.dmp
    Filesize

    7.7MB

  • memory/3484-5-0x00000000052B0000-0x00000000052C0000-memory.dmp
    Filesize

    64KB

  • memory/3484-25-0x0000000074E50000-0x0000000075600000-memory.dmp
    Filesize

    7.7MB

  • memory/3484-4-0x00000000052D0000-0x0000000005362000-memory.dmp
    Filesize

    584KB

  • memory/3484-11-0x0000000006810000-0x00000000068AC000-memory.dmp
    Filesize

    624KB

  • memory/3484-10-0x0000000001210000-0x000000000128A000-memory.dmp
    Filesize

    488KB

  • memory/3484-6-0x0000000005590000-0x000000000559A000-memory.dmp
    Filesize

    40KB

  • memory/3484-1-0x00000000008C0000-0x00000000009D6000-memory.dmp
    Filesize

    1.1MB

  • memory/3484-2-0x00000000057E0000-0x0000000005D84000-memory.dmp
    Filesize

    5.6MB

  • memory/3484-8-0x00000000052B0000-0x00000000052C0000-memory.dmp
    Filesize

    64KB

  • memory/3484-9-0x0000000000EB0000-0x0000000000EC0000-memory.dmp
    Filesize

    64KB

  • memory/3484-3-0x0000000074E50000-0x0000000075600000-memory.dmp
    Filesize

    7.7MB

  • memory/4824-24-0x0000000074E50000-0x0000000075600000-memory.dmp
    Filesize

    7.7MB

  • memory/4824-72-0x0000000005500000-0x0000000005510000-memory.dmp
    Filesize

    64KB

  • memory/4824-69-0x0000000074E50000-0x0000000075600000-memory.dmp
    Filesize

    7.7MB

  • memory/4824-58-0x0000000006330000-0x0000000006380000-memory.dmp
    Filesize

    320KB

  • memory/4824-21-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/4824-29-0x0000000005500000-0x0000000005510000-memory.dmp
    Filesize

    64KB