Resubmissions

03-01-2025 23:07

250103-2344xa1kcj 10

03-01-2025 12:42

250103-pxdcsatray 10

03-01-2025 12:26

250103-pmhvhstlhw 10

Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-01-2025 12:26

General

  • Target

    Invoice Confirmation.exe

  • Size

    810.6MB

  • MD5

    63395033fc8d13ddd17e74e4bb13d5d6

  • SHA1

    0a65c313504c8bcac8dc2eec944dd078a71ce384

  • SHA256

    c322c179201974d21315230539606d1292a9159527f3f2eafa9d6167e8f51ae2

  • SHA512

    4a1eb33f370ac2ba32bea1af287abe753edfa63e493e9045960303b1990c1cbdb289dd3ebd273ff87ad68b912b4e016877dd3f78b8ed5ce373a3f20b581a0718

  • SSDEEP

    12288:mIR4R52J+XtyfG+Lzb6C65feSfSecDAMEnLwh8aFfxc1C0rmZdXm8qzd9p2MIR:mIeeJfG+LNzecKiVfaBiHXU9pTI

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6882044231:AAEdfz6RtcLc5FDAwOwS8UYabnK3tQ7x4bs/

Signatures

  • AgentTesla

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

  • Agenttesla family
  • 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.

  • 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 3 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).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 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 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Invoice Confirmation.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice Confirmation.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3324
    • 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\Invoice Confirmation.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5096
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KmihxwKU.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3940
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KmihxwKU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE196.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2972
    • C:\Users\Admin\AppData\Local\Temp\Invoice Confirmation.exe
      "C:\Users\Admin\AppData\Local\Temp\Invoice Confirmation.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4508

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

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

    Filesize

    2KB

    MD5

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    81e4d305bd4991ae7bd0def90abc6a7c

    SHA1

    3d2fb7f5a226ea6d42e7117e9612c5acecd26821

    SHA256

    fab5e58e3160cdb8533507780a17d6874f6ff0b89fe5ef39b6dc8d991b380470

    SHA512

    67eb9cb140e2ac20ac37a878d9ae51eaef0c6fe6d4e5cadbfcb20510032461e644464ffe7bf51e250615a8fc1b40bad22b7d1655a2a9c3d2cb5e0a6adb52c7ae

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1atpfpo4.rop.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpE196.tmp

    Filesize

    1KB

    MD5

    c2b95875d4a5e6a203cefeb919304f6d

    SHA1

    64a5ba8f2769c287bad5552eb4285f7959195435

    SHA256

    213206fa1191b766fe62ba8e488dbc9e30bae9b25100451a387aedd9257fa85f

    SHA512

    4ca149b3ac2f3ea2495581714b0e465cc9dde10d07fc28350222be7e9dde809ea0375d279fb7a14eec0b691b8bac441f45080d7d2f10e8c618d853c9506334d0

  • memory/3324-5-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3324-4-0x0000000005230000-0x000000000523A000-memory.dmp

    Filesize

    40KB

  • memory/3324-7-0x000000007504E000-0x000000007504F000-memory.dmp

    Filesize

    4KB

  • memory/3324-8-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3324-9-0x0000000006D80000-0x0000000006E06000-memory.dmp

    Filesize

    536KB

  • memory/3324-10-0x0000000009190000-0x000000000922C000-memory.dmp

    Filesize

    624KB

  • memory/3324-0-0x000000007504E000-0x000000007504F000-memory.dmp

    Filesize

    4KB

  • memory/3324-62-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3324-1-0x00000000008E0000-0x0000000000996000-memory.dmp

    Filesize

    728KB

  • memory/3324-6-0x00000000054F0000-0x0000000005508000-memory.dmp

    Filesize

    96KB

  • memory/3324-3-0x0000000005290000-0x0000000005322000-memory.dmp

    Filesize

    584KB

  • memory/3324-2-0x00000000057A0000-0x0000000005D44000-memory.dmp

    Filesize

    5.6MB

  • memory/3940-68-0x0000000070020000-0x000000007006C000-memory.dmp

    Filesize

    304KB

  • memory/3940-88-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3940-36-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3940-35-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/4508-89-0x00000000066B0000-0x0000000006700000-memory.dmp

    Filesize

    320KB

  • memory/4508-37-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/5096-11-0x0000000005110000-0x0000000005146000-memory.dmp

    Filesize

    216KB

  • memory/5096-65-0x0000000007A50000-0x0000000007A5A000-memory.dmp

    Filesize

    40KB

  • memory/5096-28-0x00000000066A0000-0x00000000066BE000-memory.dmp

    Filesize

    120KB

  • memory/5096-56-0x0000000006C50000-0x0000000006C6E000-memory.dmp

    Filesize

    120KB

  • memory/5096-46-0x0000000070020000-0x000000007006C000-memory.dmp

    Filesize

    304KB

  • memory/5096-23-0x00000000060A0000-0x00000000063F4000-memory.dmp

    Filesize

    3.3MB

  • memory/5096-61-0x00000000076C0000-0x0000000007763000-memory.dmp

    Filesize

    652KB

  • memory/5096-45-0x0000000006C70000-0x0000000006CA2000-memory.dmp

    Filesize

    200KB

  • memory/5096-16-0x00000000057A0000-0x0000000005806000-memory.dmp

    Filesize

    408KB

  • memory/5096-64-0x0000000005410000-0x000000000542A000-memory.dmp

    Filesize

    104KB

  • memory/5096-63-0x0000000008010000-0x000000000868A000-memory.dmp

    Filesize

    6.5MB

  • memory/5096-29-0x0000000006730000-0x000000000677C000-memory.dmp

    Filesize

    304KB

  • memory/5096-66-0x0000000007C60000-0x0000000007CF6000-memory.dmp

    Filesize

    600KB

  • memory/5096-67-0x0000000007BE0000-0x0000000007BF1000-memory.dmp

    Filesize

    68KB

  • memory/5096-17-0x0000000005E70000-0x0000000005ED6000-memory.dmp

    Filesize

    408KB

  • memory/5096-78-0x0000000007C10000-0x0000000007C1E000-memory.dmp

    Filesize

    56KB

  • memory/5096-79-0x0000000007C20000-0x0000000007C34000-memory.dmp

    Filesize

    80KB

  • memory/5096-80-0x0000000007D20000-0x0000000007D3A000-memory.dmp

    Filesize

    104KB

  • memory/5096-81-0x0000000007D00000-0x0000000007D08000-memory.dmp

    Filesize

    32KB

  • memory/5096-84-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/5096-15-0x0000000005700000-0x0000000005722000-memory.dmp

    Filesize

    136KB

  • memory/5096-14-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB

  • memory/5096-13-0x0000000005840000-0x0000000005E68000-memory.dmp

    Filesize

    6.2MB

  • memory/5096-12-0x0000000075040000-0x00000000757F0000-memory.dmp

    Filesize

    7.7MB