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
    131s
  • max time network
    156s
  • 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 12:42

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:3644
    • 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:4052
    • 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:4024
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KmihxwKU" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD7D2.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2460
    • 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:5048

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

    204B

    MD5

    38f21ba6cfdce3bde5b29eb535e679ea

    SHA1

    3a5ed7a3d99d91031ceb6e30e84031a014df2967

    SHA256

    65ddb1f5d141ca22562a1e4115182e3d60a82fa4b7b90f3d36928f20611f3e5b

    SHA512

    4e35986e2590ac010ffcd2377225c33314c89b0b55825237133843fed116f4c56ac9a735e0d1fd68dc37c6c93d24028a3d90ca7b19c238724ffa6e22d2a6822f

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fsayrmjh.mew.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpD7D2.tmp

    Filesize

    1KB

    MD5

    31625d66fdbf2997f9dcff0b6907c91a

    SHA1

    7b595af92e4fda7fe5d5984b8998ab242508270d

    SHA256

    a3d924573b67a461b84595debec38057224fe4c7f1dd509d3c67ca03f2abace6

    SHA512

    1d962a01d9b9d7c290d0ed44b9cc2669adfc3bb7a2f9a71bc7ea474204f0725f9e574db0343a98555a8e7f15f5f4fd97f0d6570398e3066928a10b4b302e2b0c

  • memory/3644-10-0x0000000007360000-0x00000000073FC000-memory.dmp

    Filesize

    624KB

  • memory/3644-0-0x0000000074F7E000-0x0000000074F7F000-memory.dmp

    Filesize

    4KB

  • memory/3644-7-0x0000000074F7E000-0x0000000074F7F000-memory.dmp

    Filesize

    4KB

  • memory/3644-8-0x0000000074F70000-0x0000000075720000-memory.dmp

    Filesize

    7.7MB

  • memory/3644-9-0x0000000007230000-0x00000000072B6000-memory.dmp

    Filesize

    536KB

  • memory/3644-1-0x0000000000F00000-0x0000000000FB6000-memory.dmp

    Filesize

    728KB

  • memory/3644-2-0x0000000005F10000-0x00000000064B4000-memory.dmp

    Filesize

    5.6MB

  • memory/3644-6-0x0000000005D80000-0x0000000005D98000-memory.dmp

    Filesize

    96KB

  • memory/3644-5-0x0000000074F70000-0x0000000075720000-memory.dmp

    Filesize

    7.7MB

  • memory/3644-4-0x0000000005A20000-0x0000000005A2A000-memory.dmp

    Filesize

    40KB

  • memory/3644-3-0x0000000005960000-0x00000000059F2000-memory.dmp

    Filesize

    584KB

  • memory/3644-67-0x0000000074F70000-0x0000000075720000-memory.dmp

    Filesize

    7.7MB

  • memory/4024-74-0x000000006FF50000-0x000000006FF9C000-memory.dmp

    Filesize

    304KB

  • memory/4024-90-0x0000000074F70000-0x0000000075720000-memory.dmp

    Filesize

    7.7MB

  • memory/4024-50-0x0000000074F70000-0x0000000075720000-memory.dmp

    Filesize

    7.7MB

  • memory/4052-12-0x0000000074F70000-0x0000000075720000-memory.dmp

    Filesize

    7.7MB

  • memory/4052-15-0x00000000051C0000-0x00000000051E2000-memory.dmp

    Filesize

    136KB

  • memory/4052-37-0x0000000074F70000-0x0000000075720000-memory.dmp

    Filesize

    7.7MB

  • memory/4052-47-0x0000000006C50000-0x0000000006CF3000-memory.dmp

    Filesize

    652KB

  • memory/4052-46-0x0000000006070000-0x000000000608E000-memory.dmp

    Filesize

    120KB

  • memory/4052-35-0x000000006FF50000-0x000000006FF9C000-memory.dmp

    Filesize

    304KB

  • memory/4052-34-0x0000000006030000-0x0000000006062000-memory.dmp

    Filesize

    200KB

  • memory/4052-48-0x0000000074F70000-0x0000000075720000-memory.dmp

    Filesize

    7.7MB

  • memory/4052-49-0x0000000074F70000-0x0000000075720000-memory.dmp

    Filesize

    7.7MB

  • memory/4052-28-0x0000000005A50000-0x0000000005A6E000-memory.dmp

    Filesize

    120KB

  • memory/4052-51-0x00000000073D0000-0x0000000007A4A000-memory.dmp

    Filesize

    6.5MB

  • memory/4052-27-0x00000000053E0000-0x0000000005734000-memory.dmp

    Filesize

    3.3MB

  • memory/4052-52-0x0000000006D80000-0x0000000006D9A000-memory.dmp

    Filesize

    104KB

  • memory/4052-63-0x0000000006DF0000-0x0000000006DFA000-memory.dmp

    Filesize

    40KB

  • memory/4052-11-0x0000000002130000-0x0000000002166000-memory.dmp

    Filesize

    216KB

  • memory/4052-29-0x0000000005B00000-0x0000000005B4C000-memory.dmp

    Filesize

    304KB

  • memory/4052-16-0x0000000005280000-0x00000000052E6000-memory.dmp

    Filesize

    408KB

  • memory/4052-68-0x0000000007000000-0x0000000007096000-memory.dmp

    Filesize

    600KB

  • memory/4052-69-0x0000000006F80000-0x0000000006F91000-memory.dmp

    Filesize

    68KB

  • memory/4052-70-0x0000000006FB0000-0x0000000006FBE000-memory.dmp

    Filesize

    56KB

  • memory/4052-71-0x0000000006FC0000-0x0000000006FD4000-memory.dmp

    Filesize

    80KB

  • memory/4052-72-0x00000000070C0000-0x00000000070DA000-memory.dmp

    Filesize

    104KB

  • memory/4052-73-0x00000000070A0000-0x00000000070A8000-memory.dmp

    Filesize

    32KB

  • memory/4052-17-0x00000000052F0000-0x0000000005356000-memory.dmp

    Filesize

    408KB

  • memory/4052-86-0x0000000074F70000-0x0000000075720000-memory.dmp

    Filesize

    7.7MB

  • memory/4052-14-0x0000000004B90000-0x00000000051B8000-memory.dmp

    Filesize

    6.2MB

  • memory/4052-13-0x0000000074F70000-0x0000000075720000-memory.dmp

    Filesize

    7.7MB

  • memory/5048-64-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/5048-91-0x0000000006410000-0x0000000006460000-memory.dmp

    Filesize

    320KB