Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-04-2024 13:51

General

  • Target

    PO49000880.exe

  • Size

    696KB

  • MD5

    f81737bc40ede28ebedf91d62330f9fc

  • SHA1

    17c89376f2f53b155887652e5ce0cbc8b246ad20

  • SHA256

    75d0f8641ab2d7d47457fa1f1eeb338b2aacb9e356a539d18780c273d5a37a0f

  • SHA512

    b14f15d2354dceb0b54b4193a47130e811149ccf8cb1fc67bb15b59de1e5f773fae7d96aa8bcdc221cc72e6d7e82692663259d6c9529f20bad4dd2e08b4f5946

  • SSDEEP

    12288:eF2iN3XfwMTOEygb6x4eSSGAZDxXeOBb+c2f6DvtszpUlv312Z3:eF15wMCrgb6x4hRA3eOBb1dDtslUJ31s

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 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.

  • 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).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO49000880.exe
    "C:\Users\Admin\AppData\Local\Temp\PO49000880.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1876
    • 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\PO49000880.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1104
    • C:\Users\Admin\AppData\Local\Temp\PO49000880.exe
      "C:\Users\Admin\AppData\Local\Temp\PO49000880.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3416

Network

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO49000880.exe.log
    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_prdafiz1.tok.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1104-32-0x0000000006280000-0x00000000065D4000-memory.dmp
    Filesize

    3.3MB

  • memory/1104-49-0x0000000007B90000-0x0000000007BAA000-memory.dmp
    Filesize

    104KB

  • memory/1104-33-0x0000000006860000-0x000000000687E000-memory.dmp
    Filesize

    120KB

  • memory/1104-59-0x0000000074B60000-0x0000000075310000-memory.dmp
    Filesize

    7.7MB

  • memory/1104-55-0x0000000007ED0000-0x0000000007EEA000-memory.dmp
    Filesize

    104KB

  • memory/1104-56-0x0000000007EB0000-0x0000000007EB8000-memory.dmp
    Filesize

    32KB

  • memory/1104-54-0x0000000007DD0000-0x0000000007DE4000-memory.dmp
    Filesize

    80KB

  • memory/1104-53-0x0000000007DC0000-0x0000000007DCE000-memory.dmp
    Filesize

    56KB

  • memory/1104-52-0x0000000007D90000-0x0000000007DA1000-memory.dmp
    Filesize

    68KB

  • memory/1104-51-0x0000000007E10000-0x0000000007EA6000-memory.dmp
    Filesize

    600KB

  • memory/1104-50-0x0000000007C00000-0x0000000007C0A000-memory.dmp
    Filesize

    40KB

  • memory/1104-34-0x0000000006910000-0x000000000695C000-memory.dmp
    Filesize

    304KB

  • memory/1104-48-0x00000000081D0000-0x000000000884A000-memory.dmp
    Filesize

    6.5MB

  • memory/1104-36-0x00000000707C0000-0x000000007080C000-memory.dmp
    Filesize

    304KB

  • memory/1104-17-0x00000000052C0000-0x00000000052F6000-memory.dmp
    Filesize

    216KB

  • memory/1104-20-0x0000000005270000-0x0000000005280000-memory.dmp
    Filesize

    64KB

  • memory/1104-19-0x0000000005930000-0x0000000005F58000-memory.dmp
    Filesize

    6.2MB

  • memory/1104-18-0x0000000074B60000-0x0000000075310000-memory.dmp
    Filesize

    7.7MB

  • memory/1104-22-0x00000000060F0000-0x0000000006156000-memory.dmp
    Filesize

    408KB

  • memory/1104-21-0x0000000005FD0000-0x0000000005FF2000-memory.dmp
    Filesize

    136KB

  • memory/1104-46-0x0000000006E60000-0x0000000006E7E000-memory.dmp
    Filesize

    120KB

  • memory/1104-47-0x0000000007A50000-0x0000000007AF3000-memory.dmp
    Filesize

    652KB

  • memory/1104-35-0x0000000006E20000-0x0000000006E52000-memory.dmp
    Filesize

    200KB

  • memory/1876-9-0x000000000C540000-0x000000000C5DC000-memory.dmp
    Filesize

    624KB

  • memory/1876-6-0x0000000005A60000-0x0000000005A80000-memory.dmp
    Filesize

    128KB

  • memory/1876-3-0x0000000005610000-0x00000000056A2000-memory.dmp
    Filesize

    584KB

  • memory/1876-5-0x00000000056D0000-0x00000000056DA000-memory.dmp
    Filesize

    40KB

  • memory/1876-4-0x0000000005860000-0x0000000005870000-memory.dmp
    Filesize

    64KB

  • memory/1876-0-0x0000000000B70000-0x0000000000C24000-memory.dmp
    Filesize

    720KB

  • memory/1876-7-0x0000000005850000-0x0000000005864000-memory.dmp
    Filesize

    80KB

  • memory/1876-13-0x0000000074B60000-0x0000000075310000-memory.dmp
    Filesize

    7.7MB

  • memory/1876-2-0x0000000005B10000-0x00000000060B4000-memory.dmp
    Filesize

    5.6MB

  • memory/1876-8-0x0000000005030000-0x00000000050A0000-memory.dmp
    Filesize

    448KB

  • memory/1876-1-0x0000000074B60000-0x0000000075310000-memory.dmp
    Filesize

    7.7MB

  • memory/3416-10-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/3416-14-0x0000000074B60000-0x0000000075310000-memory.dmp
    Filesize

    7.7MB

  • memory/3416-15-0x0000000005080000-0x00000000050E6000-memory.dmp
    Filesize

    408KB

  • memory/3416-16-0x00000000051D0000-0x00000000051E0000-memory.dmp
    Filesize

    64KB

  • memory/3416-60-0x00000000063F0000-0x0000000006440000-memory.dmp
    Filesize

    320KB

  • memory/3416-61-0x0000000006610000-0x00000000067D2000-memory.dmp
    Filesize

    1.8MB

  • memory/3416-62-0x0000000074B60000-0x0000000075310000-memory.dmp
    Filesize

    7.7MB

  • memory/3416-63-0x00000000051D0000-0x00000000051E0000-memory.dmp
    Filesize

    64KB