Analysis

  • max time kernel
    146s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2023 18:40

General

  • Target

    INVOICE & AWB #5291760_pdf.exe

  • Size

    639KB

  • MD5

    c60068fde058f588a2b7fe236cfbc0e9

  • SHA1

    d5b3d029b3645a1f2cbf14ec1d134276e47d60e2

  • SHA256

    a75840200db6ba9313053ab15551f6c758d78ac9ffbe75ede0f36e744eaed24b

  • SHA512

    146f766575aa3f81a4d90247871e17cd99bb572720f1a5b72a0ace9140476556d321e82526176bc831eefd029253c5fa627eb7ba78bbd73e2c080447fa2249c0

  • SSDEEP

    12288:CE5QaueH5qjR82KUIdsNQ3GZDlOPk9JiPB7a4pZ5fBJfOUmtakjg7s:CE3qjWsI6wKo44PBu8Z5L2Umtaks

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.dcc-asia.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    soso@#1235

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.

  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\INVOICE & AWB #5291760_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\INVOICE & AWB #5291760_pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3336
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\INVOICE & AWB #5291760_pdf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:848
    • C:\Users\Admin\AppData\Local\Temp\INVOICE & AWB #5291760_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\INVOICE & AWB #5291760_pdf.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4016

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xdyelngg.r1n.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/848-36-0x00000000065B0000-0x00000000065FC000-memory.dmp

    Filesize

    304KB

  • memory/848-37-0x00000000051B0000-0x00000000051C0000-memory.dmp

    Filesize

    64KB

  • memory/848-19-0x0000000074470000-0x0000000074C20000-memory.dmp

    Filesize

    7.7MB

  • memory/848-35-0x0000000006580000-0x000000000659E000-memory.dmp

    Filesize

    120KB

  • memory/848-30-0x0000000005F50000-0x00000000062A4000-memory.dmp

    Filesize

    3.3MB

  • memory/848-40-0x0000000074470000-0x0000000074C20000-memory.dmp

    Filesize

    7.7MB

  • memory/848-24-0x0000000005640000-0x00000000056A6000-memory.dmp

    Filesize

    408KB

  • memory/848-23-0x0000000005490000-0x00000000054B2000-memory.dmp

    Filesize

    136KB

  • memory/848-22-0x00000000057F0000-0x0000000005E18000-memory.dmp

    Filesize

    6.2MB

  • memory/848-17-0x0000000004FC0000-0x0000000004FF6000-memory.dmp

    Filesize

    216KB

  • memory/848-20-0x00000000051B0000-0x00000000051C0000-memory.dmp

    Filesize

    64KB

  • memory/848-21-0x00000000051B0000-0x00000000051C0000-memory.dmp

    Filesize

    64KB

  • memory/3336-8-0x0000000005930000-0x0000000005938000-memory.dmp

    Filesize

    32KB

  • memory/3336-4-0x0000000005790000-0x00000000057A0000-memory.dmp

    Filesize

    64KB

  • memory/3336-15-0x0000000074470000-0x0000000074C20000-memory.dmp

    Filesize

    7.7MB

  • memory/3336-1-0x0000000000B80000-0x0000000000C24000-memory.dmp

    Filesize

    656KB

  • memory/3336-2-0x0000000005AD0000-0x0000000006074000-memory.dmp

    Filesize

    5.6MB

  • memory/3336-3-0x0000000005600000-0x0000000005692000-memory.dmp

    Filesize

    584KB

  • memory/3336-11-0x00000000092A0000-0x000000000933C000-memory.dmp

    Filesize

    624KB

  • memory/3336-10-0x0000000006B30000-0x0000000006BAA000-memory.dmp

    Filesize

    488KB

  • memory/3336-9-0x0000000005940000-0x000000000594A000-memory.dmp

    Filesize

    40KB

  • memory/3336-0-0x0000000074470000-0x0000000074C20000-memory.dmp

    Filesize

    7.7MB

  • memory/3336-7-0x0000000074470000-0x0000000074C20000-memory.dmp

    Filesize

    7.7MB

  • memory/3336-6-0x00000000058F0000-0x000000000590A000-memory.dmp

    Filesize

    104KB

  • memory/3336-5-0x00000000057C0000-0x00000000057CA000-memory.dmp

    Filesize

    40KB

  • memory/4016-16-0x0000000005960000-0x0000000005970000-memory.dmp

    Filesize

    64KB

  • memory/4016-12-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/4016-14-0x0000000074470000-0x0000000074C20000-memory.dmp

    Filesize

    7.7MB

  • memory/4016-18-0x00000000058F0000-0x0000000005956000-memory.dmp

    Filesize

    408KB

  • memory/4016-41-0x0000000006E50000-0x0000000006EA0000-memory.dmp

    Filesize

    320KB

  • memory/4016-42-0x0000000074470000-0x0000000074C20000-memory.dmp

    Filesize

    7.7MB

  • memory/4016-43-0x0000000005960000-0x0000000005970000-memory.dmp

    Filesize

    64KB