Analysis

  • max time kernel
    117s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/05/2023, 01:55

General

  • Target

    Purchase Order.exe

  • Size

    580KB

  • MD5

    ffb5ff978b543216e4b1317f7d9f97ef

  • SHA1

    a220878a48495fd5b4addcbd6553ca782a403277

  • SHA256

    b58e0980d53aa7891015a450f575a33f08a67c9b5f36674c2684d15ea78194aa

  • SHA512

    0a4ad7253c94039187aa4fc805f963b4e2ebeabc8d13f84755bcacd23844be78cc6f0eda609bb09fadbb5ed64dbf16686d06bef1aa253951c6c5e3c12028ee77

  • SSDEEP

    12288:gVdoVVzEig/V8YBCTGReneNbQjJ+mgeoQscaCqNBv:ooVdO/VaG0ObQt+miQs3H

Malware Config

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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1064
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\aPCyDwLsApDgb.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4176
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aPCyDwLsApDgb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3EAF.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2244
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2680

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gn4azjvs.hh4.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp3EAF.tmp

    Filesize

    1KB

    MD5

    497b5008affb9da741c38ffbda4ee5b5

    SHA1

    55d26a1111ab338ee620fa66940899e4ddf545b1

    SHA256

    6d4f88e06fc2c4b50e4a57960ec47d6834a36bd7a7424d4fecb1831c33e6a979

    SHA512

    a5741b0850cab2635c63c873d7d1d801b5e96bdeb2b93d5ec72e51881790f1111eb5ef26b6f3c2503dc8114efea9f6c8c9fd21dfbfe4f7101040698e021769c6

  • memory/1064-133-0x0000000000E80000-0x0000000000F18000-memory.dmp

    Filesize

    608KB

  • memory/1064-134-0x0000000005F70000-0x0000000006514000-memory.dmp

    Filesize

    5.6MB

  • memory/1064-135-0x00000000058C0000-0x0000000005952000-memory.dmp

    Filesize

    584KB

  • memory/1064-136-0x0000000005BA0000-0x0000000005BB0000-memory.dmp

    Filesize

    64KB

  • memory/1064-137-0x0000000005970000-0x000000000597A000-memory.dmp

    Filesize

    40KB

  • memory/1064-138-0x0000000005BA0000-0x0000000005BB0000-memory.dmp

    Filesize

    64KB

  • memory/1064-139-0x0000000007950000-0x00000000079EC000-memory.dmp

    Filesize

    624KB

  • memory/2680-159-0x0000000005370000-0x0000000005380000-memory.dmp

    Filesize

    64KB

  • memory/2680-183-0x00000000069C0000-0x0000000006B82000-memory.dmp

    Filesize

    1.8MB

  • memory/2680-149-0x00000000052D0000-0x0000000005336000-memory.dmp

    Filesize

    408KB

  • memory/2680-190-0x0000000005370000-0x0000000005380000-memory.dmp

    Filesize

    64KB

  • memory/2680-181-0x0000000006770000-0x00000000067C0000-memory.dmp

    Filesize

    320KB

  • memory/2680-146-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/4176-178-0x0000000007650000-0x0000000007CCA000-memory.dmp

    Filesize

    6.5MB

  • memory/4176-180-0x0000000007080000-0x000000000708A000-memory.dmp

    Filesize

    40KB

  • memory/4176-144-0x0000000004750000-0x0000000004786000-memory.dmp

    Filesize

    216KB

  • memory/4176-179-0x0000000007010000-0x000000000702A000-memory.dmp

    Filesize

    104KB

  • memory/4176-165-0x00000000047F0000-0x0000000004800000-memory.dmp

    Filesize

    64KB

  • memory/4176-166-0x0000000006CB0000-0x0000000006CE2000-memory.dmp

    Filesize

    200KB

  • memory/4176-167-0x0000000070500000-0x000000007054C000-memory.dmp

    Filesize

    304KB

  • memory/4176-177-0x00000000062B0000-0x00000000062CE000-memory.dmp

    Filesize

    120KB

  • memory/4176-153-0x0000000005640000-0x00000000056A6000-memory.dmp

    Filesize

    408KB

  • memory/4176-152-0x00000000047F0000-0x0000000004800000-memory.dmp

    Filesize

    64KB

  • memory/4176-164-0x0000000005CF0000-0x0000000005D0E000-memory.dmp

    Filesize

    120KB

  • memory/4176-151-0x00000000047F0000-0x0000000004800000-memory.dmp

    Filesize

    64KB

  • memory/4176-182-0x000000007F810000-0x000000007F820000-memory.dmp

    Filesize

    64KB

  • memory/4176-147-0x0000000004E30000-0x0000000005458000-memory.dmp

    Filesize

    6.2MB

  • memory/4176-184-0x0000000007290000-0x0000000007326000-memory.dmp

    Filesize

    600KB

  • memory/4176-185-0x0000000007240000-0x000000000724E000-memory.dmp

    Filesize

    56KB

  • memory/4176-186-0x0000000007350000-0x000000000736A000-memory.dmp

    Filesize

    104KB

  • memory/4176-187-0x0000000007330000-0x0000000007338000-memory.dmp

    Filesize

    32KB

  • memory/4176-150-0x0000000004D30000-0x0000000004D52000-memory.dmp

    Filesize

    136KB