Analysis

  • max time kernel
    121s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    29-03-2024 02:53

General

  • Target

    PURCHASE ORDER.exe

  • Size

    670KB

  • MD5

    82ed2d50defbaa3056e1216f7a04fd29

  • SHA1

    b0c53c84b62236adb6dbe7adad055e13c6ff58cd

  • SHA256

    5367bdd7476c6a1d2ac38b0d8efcbaba0c74176f86cc0f76e925407e62605071

  • SHA512

    550d35d6c2dae4cf1d818a5d6d77d9359cdf4420d1dcd831cd39c179bacaf441800afe11d0961f8affe718f349d0aed92816c4b8d0c15a95231a7dad453e9356

  • SSDEEP

    12288:sme0YOwq0IDzlpnjRSsrj65vGdaM6Ge/zqdrAamH8Wss:+O70I3lbBaZo6a3Wb

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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
  • 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2044
    • 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\PURCHASE ORDER.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1288
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\azSeNNFbJYW.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1968
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\azSeNNFbJYW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp89B9.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2168
    • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
      "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:592

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

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

4
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp89B9.tmp
    Filesize

    1KB

    MD5

    ac2efacf77ac6344cafc7701e741da9c

    SHA1

    18dfe0b5e76f4e77d7afb797f8837423df7af0d6

    SHA256

    5ea97112985b4ad2a3a95948d68abb9a927663910bbf6ad9764ca1737486a27b

    SHA512

    46713dddf39aa72e31815c58c432b6a48cfcfa6fbe54db96492cca72864ae5b71bfbbf5ce984e2aa5d3a96ecb69e737685796fb54d97fc163a493b86dae39e87

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
    Filesize

    7KB

    MD5

    7cdeb7a6324d10c8b243c36ab329cfea

    SHA1

    a2b2e300147fd9ce1f9e96e7bac6d86b927f9e55

    SHA256

    87e9dd82e06036e1a3755bd1bf6cd65550f729e4c84c77306e4e5fd30ccbb326

    SHA512

    482c06b9f10fb8af88991d392b084673dda1c4c15a8d5650a7126f41e14cb4a90e12e396e49511547237c8b1bb432baa45aff6678afbf3b634efcc332a36dbea

  • memory/592-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/592-26-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/592-28-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/592-41-0x0000000074ED0000-0x00000000755BE000-memory.dmp
    Filesize

    6.9MB

  • memory/592-30-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/592-20-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/592-18-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/592-37-0x0000000074ED0000-0x00000000755BE000-memory.dmp
    Filesize

    6.9MB

  • memory/592-22-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/592-23-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/1288-39-0x000000006FD60000-0x000000007030B000-memory.dmp
    Filesize

    5.7MB

  • memory/1288-38-0x0000000002570000-0x00000000025B0000-memory.dmp
    Filesize

    256KB

  • memory/1288-36-0x0000000002570000-0x00000000025B0000-memory.dmp
    Filesize

    256KB

  • memory/1288-32-0x000000006FD60000-0x000000007030B000-memory.dmp
    Filesize

    5.7MB

  • memory/1288-34-0x0000000002570000-0x00000000025B0000-memory.dmp
    Filesize

    256KB

  • memory/1968-40-0x000000006FD60000-0x000000007030B000-memory.dmp
    Filesize

    5.7MB

  • memory/1968-35-0x0000000002650000-0x0000000002690000-memory.dmp
    Filesize

    256KB

  • memory/1968-33-0x000000006FD60000-0x000000007030B000-memory.dmp
    Filesize

    5.7MB

  • memory/2044-31-0x0000000074ED0000-0x00000000755BE000-memory.dmp
    Filesize

    6.9MB

  • memory/2044-1-0x0000000074ED0000-0x00000000755BE000-memory.dmp
    Filesize

    6.9MB

  • memory/2044-4-0x00000000003D0000-0x00000000003DC000-memory.dmp
    Filesize

    48KB

  • memory/2044-3-0x00000000003B0000-0x00000000003CA000-memory.dmp
    Filesize

    104KB

  • memory/2044-0-0x00000000008B0000-0x000000000095E000-memory.dmp
    Filesize

    696KB

  • memory/2044-2-0x0000000004D10000-0x0000000004D50000-memory.dmp
    Filesize

    256KB

  • memory/2044-5-0x00000000053A0000-0x0000000005422000-memory.dmp
    Filesize

    520KB