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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
    154s
  • max time network
    152s
  • 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, 11:38

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:516
    • 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:1668
    • 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:4836
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KmihxwKU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFE94.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:924
    • 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:3340

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

    3d086a433708053f9bf9523e1d87a4e8

    SHA1

    b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

    SHA256

    6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

    SHA512

    931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

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

    Filesize

    18KB

    MD5

    4997121abd5ecaf4e3402565763f0d69

    SHA1

    cb38ef9ab83406629969876d00cd3a428f55f015

    SHA256

    2c8b2896a392ac6057040a035ee2b874ea4ee258a043a326e7a53291067b2df2

    SHA512

    dd93436706a2bc01707d991563b549c16b397624c1b918c9d59f5f537e3eac963767a9fb89bd8bcdc0a497de917946046efda841fb364f0664d6abebcce260df

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1uzeyoxz.nva.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpFE94.tmp

    Filesize

    1KB

    MD5

    de9addb69dc56ef5cc96b1b2294530e6

    SHA1

    f89890ff635451736292c07a44ba62799c76121b

    SHA256

    88727f15506a8dbe6865251201b014193af9069536f5f28bc9885640af54674d

    SHA512

    997abca70f000cda7457b2425e6067fc48453d45415ee0dab32b443f04bcd1706d643760c3ac50a4dc690fe42ac7df35287486fa49b8717055c63225555201c2

  • memory/516-4-0x00000000059B0000-0x00000000059BA000-memory.dmp

    Filesize

    40KB

  • memory/516-5-0x0000000074A60000-0x0000000075210000-memory.dmp

    Filesize

    7.7MB

  • memory/516-6-0x0000000005D10000-0x0000000005D28000-memory.dmp

    Filesize

    96KB

  • memory/516-7-0x0000000074A6E000-0x0000000074A6F000-memory.dmp

    Filesize

    4KB

  • memory/516-8-0x0000000074A60000-0x0000000075210000-memory.dmp

    Filesize

    7.7MB

  • memory/516-9-0x0000000007470000-0x00000000074F6000-memory.dmp

    Filesize

    536KB

  • memory/516-10-0x0000000007260000-0x00000000072FC000-memory.dmp

    Filesize

    624KB

  • memory/516-3-0x0000000005910000-0x00000000059A2000-memory.dmp

    Filesize

    584KB

  • memory/516-2-0x0000000005FA0000-0x0000000006544000-memory.dmp

    Filesize

    5.6MB

  • memory/516-69-0x0000000074A60000-0x0000000075210000-memory.dmp

    Filesize

    7.7MB

  • memory/516-1-0x0000000000EA0000-0x0000000000F56000-memory.dmp

    Filesize

    728KB

  • memory/516-0-0x0000000074A6E000-0x0000000074A6F000-memory.dmp

    Filesize

    4KB

  • memory/1668-35-0x0000000006910000-0x0000000006942000-memory.dmp

    Filesize

    200KB

  • memory/1668-14-0x0000000074A60000-0x0000000075210000-memory.dmp

    Filesize

    7.7MB

  • memory/1668-24-0x0000000005E80000-0x0000000005EE6000-memory.dmp

    Filesize

    408KB

  • memory/1668-21-0x0000000005BE0000-0x0000000005C02000-memory.dmp

    Filesize

    136KB

  • memory/1668-28-0x0000000005F50000-0x00000000062A4000-memory.dmp

    Filesize

    3.3MB

  • memory/1668-29-0x0000000006370000-0x000000000638E000-memory.dmp

    Filesize

    120KB

  • memory/1668-30-0x00000000063A0000-0x00000000063EC000-memory.dmp

    Filesize

    304KB

  • memory/1668-36-0x000000006FA40000-0x000000006FA8C000-memory.dmp

    Filesize

    304KB

  • memory/1668-38-0x0000000074A60000-0x0000000075210000-memory.dmp

    Filesize

    7.7MB

  • memory/1668-47-0x0000000006950000-0x000000000696E000-memory.dmp

    Filesize

    120KB

  • memory/1668-15-0x0000000074A60000-0x0000000075210000-memory.dmp

    Filesize

    7.7MB

  • memory/1668-48-0x0000000007550000-0x00000000075F3000-memory.dmp

    Filesize

    652KB

  • memory/1668-49-0x0000000074A60000-0x0000000075210000-memory.dmp

    Filesize

    7.7MB

  • memory/1668-11-0x0000000002A00000-0x0000000002A36000-memory.dmp

    Filesize

    216KB

  • memory/1668-50-0x0000000074A60000-0x0000000075210000-memory.dmp

    Filesize

    7.7MB

  • memory/1668-13-0x0000000074A60000-0x0000000075210000-memory.dmp

    Filesize

    7.7MB

  • memory/1668-78-0x0000000074A60000-0x0000000075210000-memory.dmp

    Filesize

    7.7MB

  • memory/1668-54-0x0000000007680000-0x000000000769A000-memory.dmp

    Filesize

    104KB

  • memory/1668-53-0x0000000007CC0000-0x000000000833A000-memory.dmp

    Filesize

    6.5MB

  • memory/1668-22-0x0000000005DA0000-0x0000000005E06000-memory.dmp

    Filesize

    408KB

  • memory/1668-66-0x00000000076F0000-0x00000000076FA000-memory.dmp

    Filesize

    40KB

  • memory/1668-74-0x00000000079C0000-0x00000000079DA000-memory.dmp

    Filesize

    104KB

  • memory/1668-70-0x0000000007900000-0x0000000007996000-memory.dmp

    Filesize

    600KB

  • memory/1668-12-0x00000000054F0000-0x0000000005B18000-memory.dmp

    Filesize

    6.2MB

  • memory/1668-71-0x0000000007880000-0x0000000007891000-memory.dmp

    Filesize

    68KB

  • memory/1668-72-0x00000000078B0000-0x00000000078BE000-memory.dmp

    Filesize

    56KB

  • memory/1668-73-0x00000000078C0000-0x00000000078D4000-memory.dmp

    Filesize

    80KB

  • memory/1668-75-0x00000000079A0000-0x00000000079A8000-memory.dmp

    Filesize

    32KB

  • memory/3340-67-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/3340-95-0x0000000005ED0000-0x0000000005F20000-memory.dmp

    Filesize

    320KB

  • memory/4836-55-0x0000000074A60000-0x0000000075210000-memory.dmp

    Filesize

    7.7MB

  • memory/4836-89-0x0000000006C90000-0x0000000006D33000-memory.dmp

    Filesize

    652KB

  • memory/4836-79-0x000000006FA40000-0x000000006FA8C000-memory.dmp

    Filesize

    304KB

  • memory/4836-90-0x0000000007020000-0x0000000007034000-memory.dmp

    Filesize

    80KB

  • memory/4836-52-0x0000000074A60000-0x0000000075210000-memory.dmp

    Filesize

    7.7MB

  • memory/4836-51-0x0000000074A60000-0x0000000075210000-memory.dmp

    Filesize

    7.7MB

  • memory/4836-94-0x0000000074A60000-0x0000000075210000-memory.dmp

    Filesize

    7.7MB