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Analysis

  • max time kernel
    112s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/02/2024, 01:33

General

  • Target

    YU SV Payment.exe

  • Size

    716KB

  • MD5

    b27d59190142193a25e728f708a2723c

  • SHA1

    64374d07e20daa15d8f02ad0d2f40458a67fbbca

  • SHA256

    0e2ca3a22077ff6c9460e2033e1e53419053336bb81973252a764f56497a52c6

  • SHA512

    4839bc0f24c7a09e85dbdf0116bd31a34b58511862676766337d9fae2dfe5c658fa9132db310dcef0a0512120a902cc8d79c7baf78de63b0f265b5321e02b7bd

  • SSDEEP

    12288:j5zScVfJTMK+r8fmCwnhZby00RCjs3gwmsYGu9pxA5k1kR:tzSOb26B8hZbz0Ys+Wu/I

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    zqamcx.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Methodman991

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 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).

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\YU SV Payment.exe
    "C:\Users\Admin\AppData\Local\Temp\YU SV Payment.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3388
    • 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\YU SV Payment.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1712
    • C:\Users\Admin\AppData\Local\Temp\YU SV Payment.exe
      "C:\Users\Admin\AppData\Local\Temp\YU SV Payment.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2904

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\YU SV Payment.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mvep5jnr.2pr.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1712-62-0x0000000007850000-0x0000000007ECA000-memory.dmp

    Filesize

    6.5MB

  • memory/1712-44-0x00000000059F0000-0x0000000005D44000-memory.dmp

    Filesize

    3.3MB

  • memory/1712-61-0x00000000070F0000-0x0000000007193000-memory.dmp

    Filesize

    652KB

  • memory/1712-63-0x0000000007210000-0x000000000722A000-memory.dmp

    Filesize

    104KB

  • memory/1712-74-0x0000000074E30000-0x00000000755E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1712-71-0x0000000007530000-0x0000000007538000-memory.dmp

    Filesize

    32KB

  • memory/1712-70-0x0000000007550000-0x000000000756A000-memory.dmp

    Filesize

    104KB

  • memory/1712-69-0x0000000007450000-0x0000000007464000-memory.dmp

    Filesize

    80KB

  • memory/1712-68-0x0000000007440000-0x000000000744E000-memory.dmp

    Filesize

    56KB

  • memory/1712-49-0x0000000070AB0000-0x0000000070AFC000-memory.dmp

    Filesize

    304KB

  • memory/1712-66-0x0000000007410000-0x0000000007421000-memory.dmp

    Filesize

    68KB

  • memory/1712-48-0x000000007F3A0000-0x000000007F3B0000-memory.dmp

    Filesize

    64KB

  • memory/1712-34-0x0000000005810000-0x0000000005876000-memory.dmp

    Filesize

    408KB

  • memory/1712-65-0x0000000007490000-0x0000000007526000-memory.dmp

    Filesize

    600KB

  • memory/1712-47-0x00000000070B0000-0x00000000070E2000-memory.dmp

    Filesize

    200KB

  • memory/1712-26-0x0000000004920000-0x0000000004956000-memory.dmp

    Filesize

    216KB

  • memory/1712-46-0x0000000005F10000-0x0000000005F5C000-memory.dmp

    Filesize

    304KB

  • memory/1712-27-0x0000000074E30000-0x00000000755E0000-memory.dmp

    Filesize

    7.7MB

  • memory/1712-45-0x0000000005EE0000-0x0000000005EFE000-memory.dmp

    Filesize

    120KB

  • memory/1712-29-0x0000000004A30000-0x0000000004A40000-memory.dmp

    Filesize

    64KB

  • memory/1712-31-0x0000000004A30000-0x0000000004A40000-memory.dmp

    Filesize

    64KB

  • memory/1712-32-0x0000000005070000-0x0000000005698000-memory.dmp

    Filesize

    6.2MB

  • memory/1712-64-0x0000000007280000-0x000000000728A000-memory.dmp

    Filesize

    40KB

  • memory/1712-33-0x0000000005030000-0x0000000005052000-memory.dmp

    Filesize

    136KB

  • memory/1712-59-0x00000000064D0000-0x00000000064EE000-memory.dmp

    Filesize

    120KB

  • memory/1712-60-0x0000000004A30000-0x0000000004A40000-memory.dmp

    Filesize

    64KB

  • memory/2904-30-0x0000000005330000-0x0000000005340000-memory.dmp

    Filesize

    64KB

  • memory/2904-28-0x00000000054B0000-0x0000000005516000-memory.dmp

    Filesize

    408KB

  • memory/2904-24-0x0000000074E30000-0x00000000755E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2904-21-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2904-67-0x00000000062C0000-0x0000000006310000-memory.dmp

    Filesize

    320KB

  • memory/2904-75-0x0000000074E30000-0x00000000755E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2904-76-0x0000000005330000-0x0000000005340000-memory.dmp

    Filesize

    64KB

  • memory/3388-2-0x0000000005810000-0x0000000005DB4000-memory.dmp

    Filesize

    5.6MB

  • memory/3388-0-0x0000000000800000-0x00000000008B6000-memory.dmp

    Filesize

    728KB

  • memory/3388-1-0x0000000074E30000-0x00000000755E0000-memory.dmp

    Filesize

    7.7MB

  • memory/3388-3-0x0000000005300000-0x0000000005392000-memory.dmp

    Filesize

    584KB

  • memory/3388-25-0x0000000074E30000-0x00000000755E0000-memory.dmp

    Filesize

    7.7MB

  • memory/3388-20-0x0000000005560000-0x0000000005570000-memory.dmp

    Filesize

    64KB

  • memory/3388-19-0x0000000074E30000-0x00000000755E0000-memory.dmp

    Filesize

    7.7MB

  • memory/3388-18-0x000000000AED0000-0x000000000AF6C000-memory.dmp

    Filesize

    624KB

  • memory/3388-17-0x0000000007420000-0x00000000074A4000-memory.dmp

    Filesize

    528KB

  • memory/3388-16-0x0000000002C30000-0x0000000002C42000-memory.dmp

    Filesize

    72KB

  • memory/3388-15-0x0000000009DF0000-0x0000000009DFC000-memory.dmp

    Filesize

    48KB

  • memory/3388-14-0x00000000061A0000-0x00000000061BC000-memory.dmp

    Filesize

    112KB

  • memory/3388-13-0x0000000005730000-0x000000000573A000-memory.dmp

    Filesize

    40KB

  • memory/3388-12-0x0000000005560000-0x0000000005570000-memory.dmp

    Filesize

    64KB