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
    129s
  • max time network
    157s
  • 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 23:07

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:2784
    • 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:1416
    • 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:3264
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KmihxwKU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF8A8.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2944
    • 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:932

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • 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

    d3ee5b8c34d47fdc5b3407743bbfb136

    SHA1

    4042198bbfba3eb1850872c3de6f9a7c5c331d49

    SHA256

    f2aaeb43bb24ef459c74487a1aea4d3d3b2022450d67d5dcaafe1b35d46935de

    SHA512

    08e3ee2c3a93bf00dd55025d37dd57d8b7054595a0d7507d880f332a9288442ee741c12ced21eeaeb41f105928ee2904b4adfa425a5a18702085a89df186369a

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ojndrlxr.eih.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpF8A8.tmp

    Filesize

    1KB

    MD5

    1a2efb5507274ad2c494a298ce17bfb2

    SHA1

    f9969c524facbc67f4cdbe3100c14bb7b305debe

    SHA256

    2913f8fe0f302ee680bda8389e14d7f64b7327bfd7e8bd11b80f4e9e6db9b1aa

    SHA512

    ced88f5d6097d6b04605eb0725730a6ba9e3733e23d34ff417a90cde231087186b692f3e62de711fbb1faf6fd22cf9a2d51b9538c1a6f73deceee01efcafe771

  • memory/932-90-0x0000000006530000-0x0000000006580000-memory.dmp

    Filesize

    320KB

  • memory/932-48-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1416-67-0x0000000007AF0000-0x0000000007B86000-memory.dmp

    Filesize

    600KB

  • memory/1416-68-0x0000000007A70000-0x0000000007A81000-memory.dmp

    Filesize

    68KB

  • memory/1416-85-0x0000000074BD0000-0x0000000075380000-memory.dmp

    Filesize

    7.7MB

  • memory/1416-82-0x0000000007B90000-0x0000000007B98000-memory.dmp

    Filesize

    32KB

  • memory/1416-81-0x0000000007BB0000-0x0000000007BCA000-memory.dmp

    Filesize

    104KB

  • memory/1416-12-0x0000000074BD0000-0x0000000075380000-memory.dmp

    Filesize

    7.7MB

  • memory/1416-13-0x0000000074BD0000-0x0000000075380000-memory.dmp

    Filesize

    7.7MB

  • memory/1416-11-0x0000000002C20000-0x0000000002C56000-memory.dmp

    Filesize

    216KB

  • memory/1416-14-0x0000000005620000-0x0000000005C48000-memory.dmp

    Filesize

    6.2MB

  • memory/1416-15-0x0000000074BD0000-0x0000000075380000-memory.dmp

    Filesize

    7.7MB

  • memory/1416-16-0x0000000005D80000-0x0000000005DA2000-memory.dmp

    Filesize

    136KB

  • memory/1416-18-0x0000000005E90000-0x0000000005EF6000-memory.dmp

    Filesize

    408KB

  • memory/1416-80-0x0000000007AB0000-0x0000000007AC4000-memory.dmp

    Filesize

    80KB

  • memory/1416-17-0x0000000005E20000-0x0000000005E86000-memory.dmp

    Filesize

    408KB

  • memory/1416-28-0x0000000006000000-0x0000000006354000-memory.dmp

    Filesize

    3.3MB

  • memory/1416-29-0x0000000006510000-0x000000000652E000-memory.dmp

    Filesize

    120KB

  • memory/1416-30-0x0000000006540000-0x000000000658C000-memory.dmp

    Filesize

    304KB

  • memory/1416-79-0x0000000007AA0000-0x0000000007AAE000-memory.dmp

    Filesize

    56KB

  • memory/1416-66-0x00000000078E0000-0x00000000078EA000-memory.dmp

    Filesize

    40KB

  • memory/1416-65-0x0000000007870000-0x000000000788A000-memory.dmp

    Filesize

    104KB

  • memory/1416-64-0x0000000007EB0000-0x000000000852A000-memory.dmp

    Filesize

    6.5MB

  • memory/1416-63-0x0000000007750000-0x00000000077F3000-memory.dmp

    Filesize

    652KB

  • memory/1416-62-0x0000000006AE0000-0x0000000006AFE000-memory.dmp

    Filesize

    120KB

  • memory/1416-51-0x0000000006B30000-0x0000000006B62000-memory.dmp

    Filesize

    200KB

  • memory/1416-52-0x000000006FBB0000-0x000000006FBFC000-memory.dmp

    Filesize

    304KB

  • memory/2784-8-0x0000000074BD0000-0x0000000075380000-memory.dmp

    Filesize

    7.7MB

  • memory/2784-4-0x00000000059A0000-0x00000000059AA000-memory.dmp

    Filesize

    40KB

  • memory/2784-1-0x0000000000F30000-0x0000000000FE6000-memory.dmp

    Filesize

    728KB

  • memory/2784-5-0x0000000074BD0000-0x0000000075380000-memory.dmp

    Filesize

    7.7MB

  • memory/2784-50-0x0000000074BD0000-0x0000000075380000-memory.dmp

    Filesize

    7.7MB

  • memory/2784-0-0x0000000074BDE000-0x0000000074BDF000-memory.dmp

    Filesize

    4KB

  • memory/2784-7-0x0000000074BDE000-0x0000000074BDF000-memory.dmp

    Filesize

    4KB

  • memory/2784-2-0x0000000006080000-0x0000000006624000-memory.dmp

    Filesize

    5.6MB

  • memory/2784-3-0x00000000059B0000-0x0000000005A42000-memory.dmp

    Filesize

    584KB

  • memory/2784-6-0x0000000005D80000-0x0000000005D98000-memory.dmp

    Filesize

    96KB

  • memory/2784-10-0x0000000009990000-0x0000000009A2C000-memory.dmp

    Filesize

    624KB

  • memory/2784-9-0x00000000074C0000-0x0000000007546000-memory.dmp

    Filesize

    536KB

  • memory/3264-36-0x0000000074BD0000-0x0000000075380000-memory.dmp

    Filesize

    7.7MB

  • memory/3264-35-0x0000000074BD0000-0x0000000075380000-memory.dmp

    Filesize

    7.7MB

  • memory/3264-69-0x000000006FBB0000-0x000000006FBFC000-memory.dmp

    Filesize

    304KB

  • memory/3264-89-0x0000000074BD0000-0x0000000075380000-memory.dmp

    Filesize

    7.7MB

  • memory/3264-47-0x0000000074BD0000-0x0000000075380000-memory.dmp

    Filesize

    7.7MB