Analysis

  • max time kernel
    138s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2023 02:14

General

  • Target

    3dc941e16fa811b0a6dbf4695d19077a92885568d49be5e623d55762c2343b6f.exe

  • Size

    1.3MB

  • MD5

    c6aecc0e4d3db5d4e736eeeadb0b973c

  • SHA1

    71fe414f85aca7cc91794e9a73af124ab05ea2b4

  • SHA256

    3dc941e16fa811b0a6dbf4695d19077a92885568d49be5e623d55762c2343b6f

  • SHA512

    1571556ffeb44821ea1797ad0c404c39f7acea0119054e67a66fe4609b7fd66bf203f9c6157740119f4e35a3604fd0b4c336d3a55629e047953c5d744af1062d

  • SSDEEP

    12288:LcxnAA8HyJ4pyUsjthkZ5pxXt3978OiVbkqttKm9lgxGKJF8rdgqiMShXCz+FRHx:LmAfWhK/LrEYKt9Y5FT0z+bdCj1q

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.

  • Looks up external IP address via web service 1 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).

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3dc941e16fa811b0a6dbf4695d19077a92885568d49be5e623d55762c2343b6f.exe
    "C:\Users\Admin\AppData\Local\Temp\3dc941e16fa811b0a6dbf4695d19077a92885568d49be5e623d55762c2343b6f.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2360
    • 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\3dc941e16fa811b0a6dbf4695d19077a92885568d49be5e623d55762c2343b6f.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2568
    • C:\Users\Admin\AppData\Local\Temp\3dc941e16fa811b0a6dbf4695d19077a92885568d49be5e623d55762c2343b6f.exe
      "C:\Users\Admin\AppData\Local\Temp\3dc941e16fa811b0a6dbf4695d19077a92885568d49be5e623d55762c2343b6f.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3760

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\3dc941e16fa811b0a6dbf4695d19077a92885568d49be5e623d55762c2343b6f.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zx0s04m4.z5h.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/2360-8-0x0000000005110000-0x000000000511A000-memory.dmp

    Filesize

    40KB

  • memory/2360-9-0x0000000008B80000-0x0000000008BFC000-memory.dmp

    Filesize

    496KB

  • memory/2360-4-0x0000000007770000-0x0000000007780000-memory.dmp

    Filesize

    64KB

  • memory/2360-5-0x0000000007620000-0x000000000762A000-memory.dmp

    Filesize

    40KB

  • memory/2360-6-0x0000000007990000-0x00000000079AA000-memory.dmp

    Filesize

    104KB

  • memory/2360-7-0x0000000005080000-0x0000000005088000-memory.dmp

    Filesize

    32KB

  • memory/2360-18-0x0000000074F30000-0x00000000756E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2360-3-0x0000000007630000-0x00000000076C2000-memory.dmp

    Filesize

    584KB

  • memory/2360-10-0x0000000006340000-0x00000000063DC000-memory.dmp

    Filesize

    624KB

  • memory/2360-11-0x0000000074F30000-0x00000000756E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2360-12-0x0000000007770000-0x0000000007780000-memory.dmp

    Filesize

    64KB

  • memory/2360-2-0x0000000007B40000-0x00000000080E4000-memory.dmp

    Filesize

    5.6MB

  • memory/2360-1-0x0000000000600000-0x0000000000748000-memory.dmp

    Filesize

    1.3MB

  • memory/2360-0-0x0000000074F30000-0x00000000756E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2568-23-0x0000000005100000-0x0000000005728000-memory.dmp

    Filesize

    6.2MB

  • memory/2568-40-0x0000000070BB0000-0x0000000070BFC000-memory.dmp

    Filesize

    304KB

  • memory/2568-19-0x0000000074F30000-0x00000000756E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2568-21-0x0000000002610000-0x0000000002620000-memory.dmp

    Filesize

    64KB

  • memory/2568-20-0x0000000002610000-0x0000000002620000-memory.dmp

    Filesize

    64KB

  • memory/2568-64-0x0000000074F30000-0x00000000756E0000-memory.dmp

    Filesize

    7.7MB

  • memory/2568-61-0x0000000007520000-0x0000000007528000-memory.dmp

    Filesize

    32KB

  • memory/2568-24-0x0000000004E10000-0x0000000004E32000-memory.dmp

    Filesize

    136KB

  • memory/2568-25-0x0000000005830000-0x0000000005896000-memory.dmp

    Filesize

    408KB

  • memory/2568-60-0x0000000007540000-0x000000000755A000-memory.dmp

    Filesize

    104KB

  • memory/2568-31-0x0000000005910000-0x0000000005C64000-memory.dmp

    Filesize

    3.3MB

  • memory/2568-36-0x0000000005F00000-0x0000000005F1E000-memory.dmp

    Filesize

    120KB

  • memory/2568-37-0x00000000062F0000-0x000000000633C000-memory.dmp

    Filesize

    304KB

  • memory/2568-38-0x0000000002610000-0x0000000002620000-memory.dmp

    Filesize

    64KB

  • memory/2568-39-0x00000000064D0000-0x0000000006502000-memory.dmp

    Filesize

    200KB

  • memory/2568-16-0x0000000002620000-0x0000000002656000-memory.dmp

    Filesize

    216KB

  • memory/2568-50-0x00000000064B0000-0x00000000064CE000-memory.dmp

    Filesize

    120KB

  • memory/2568-51-0x00000000070D0000-0x0000000007173000-memory.dmp

    Filesize

    652KB

  • memory/2568-52-0x0000000007840000-0x0000000007EBA000-memory.dmp

    Filesize

    6.5MB

  • memory/2568-53-0x0000000007200000-0x000000000721A000-memory.dmp

    Filesize

    104KB

  • memory/2568-59-0x0000000007440000-0x0000000007454000-memory.dmp

    Filesize

    80KB

  • memory/2568-55-0x0000000007270000-0x000000000727A000-memory.dmp

    Filesize

    40KB

  • memory/2568-56-0x0000000007480000-0x0000000007516000-memory.dmp

    Filesize

    600KB

  • memory/2568-57-0x0000000007400000-0x0000000007411000-memory.dmp

    Filesize

    68KB

  • memory/2568-58-0x0000000007430000-0x000000000743E000-memory.dmp

    Filesize

    56KB

  • memory/3760-54-0x0000000006C30000-0x0000000006C80000-memory.dmp

    Filesize

    320KB

  • memory/3760-13-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3760-17-0x0000000074F30000-0x00000000756E0000-memory.dmp

    Filesize

    7.7MB

  • memory/3760-22-0x0000000005690000-0x00000000056F6000-memory.dmp

    Filesize

    408KB

  • memory/3760-65-0x0000000074F30000-0x00000000756E0000-memory.dmp

    Filesize

    7.7MB