Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 13:25

General

  • Target

    30% Down Payment Slip.pdf_______________________________________________________.exe

  • Size

    672KB

  • MD5

    b61f68ef968ddae3a9743437fdd26f88

  • SHA1

    3af6f1f6047cbe9319239875f7cc601185d32c94

  • SHA256

    7d7df676602a9235025bdcc7f5e550d532f294d6e4bd2195e12390e342bccd32

  • SHA512

    1d86da57cfaf9697cda684c294da9cc71525e4cc51d9eb8c73eff182ddac5644c2a28887328d408c0e3d12583eba57ce525d08069a28da438475cb9817b33778

  • SSDEEP

    12288:JzDi8LkpEaNB+shFpO31Yw3v2KL9sfHdYrtnoWTKx7FO/fv0Qsb/LkR:JzmjEcB+sbpoSw3JCdY19mQ/fv0QW/O

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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).

  • 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 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\30% Down Payment Slip.pdf_______________________________________________________.exe
    "C:\Users\Admin\AppData\Local\Temp\30% Down Payment Slip.pdf_______________________________________________________.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2924
    • 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\30% Down Payment Slip.pdf_______________________________________________________.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2756
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Jdysdl.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2556
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\Jdysdl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4460.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2892
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2456

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp4460.tmp
    Filesize

    1KB

    MD5

    b0a4e2a60e9047f3859c77e75f04c27d

    SHA1

    6dc5a3c2e46671055638f0872ca2e6b55c3ab061

    SHA256

    b7d3e1d2caca41b3af873b879898eb24c98bd1799d82ded7c22e8be442676dde

    SHA512

    da49a0523a095dc97636b3ad30550d9eccaecb2ed0969fcf4fc57e7f708f92a0d0b2d8104d005da7e096d217312552f2849c1751ac62afdb763370f7b099a819

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\0QR05LZJZ1QPP5KOGBI3.temp
    Filesize

    7KB

    MD5

    42f083949b60a5dd748e004409680ed4

    SHA1

    11c6e6db976802037cc99cd096b8f27d894d4767

    SHA256

    332ee686b45cb9f46edbb03d924c5e6d73442f2ea0f898a887c3627f37aab22b

    SHA512

    38a80bfac906eb325ba1353fec3d96f2ab41dd7a9a8f19db641b7a76f77e22c4e2bf41af4ef72358044a163441005b918800739dd00639b1a02f61421ba6ba9d

  • memory/2456-27-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2456-18-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2456-20-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2456-23-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2456-28-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2456-24-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2456-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2456-29-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2924-4-0x0000000000530000-0x0000000000540000-memory.dmp
    Filesize

    64KB

  • memory/2924-30-0x0000000074470000-0x0000000074B5E000-memory.dmp
    Filesize

    6.9MB

  • memory/2924-5-0x0000000005270000-0x00000000052F2000-memory.dmp
    Filesize

    520KB

  • memory/2924-0-0x000000007447E000-0x000000007447F000-memory.dmp
    Filesize

    4KB

  • memory/2924-3-0x0000000000970000-0x000000000098A000-memory.dmp
    Filesize

    104KB

  • memory/2924-2-0x0000000074470000-0x0000000074B5E000-memory.dmp
    Filesize

    6.9MB

  • memory/2924-1-0x00000000009C0000-0x0000000000A6A000-memory.dmp
    Filesize

    680KB