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Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/04/2024, 10:26

General

  • Target

    TNT Original Invoice.bat.exe

  • Size

    667KB

  • MD5

    c2853410ef7622a1c4011379555aeb6e

  • SHA1

    69221ad76e4cd869ff6483ab44d1248bb0b0a9fa

  • SHA256

    605ccfa010e2d945154cfb395a6a4855d00b710f447dbad889eb0415bb9710af

  • SHA512

    bcaee778eb208cf5c97c8c32f6f3427b7991b241900dff060b1871cff04b0412d8ca9e7d56ff20cdfec17325881af6c72daa56d2eb06c9efd5caf580ccfe484c

  • SSDEEP

    12288:BrueWFm+L0gJVGt0YKvh+PoiXPshhr/+2snkfh9r/tbfqo4uDUkas8b:kRFm+LX8Kv+o0mhrW2MkfDlfqBuB8

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5239412158:AAHXn8rC3uvBHy_kv77GtIcxcuvBuXcKD_8/

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 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 2 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\TNT Original Invoice.bat.exe
    "C:\Users\Admin\AppData\Local\Temp\TNT Original Invoice.bat.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:232
    • 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\TNT Original Invoice.bat.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2304
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YGFoajAV.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3452
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YGFoajAV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA2F7.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2704
    • C:\Users\Admin\AppData\Local\Temp\TNT Original Invoice.bat.exe
      "C:\Users\Admin\AppData\Local\Temp\TNT Original Invoice.bat.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4224

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

    d8daca4d917fd5993d10b0a864a3342b

    SHA1

    f2b771db9f75c4a857d01d7e9e966dfd8c0304e6

    SHA256

    b881b3cc1886e5bcff92bdb308165b8729554e2457bdf66b03055cd3b175c4c6

    SHA512

    b66392050b4ce7a29483ac445785c5d98cc85e25ed8851838feaa26e774cc2deb5f8a655c744054458bfa2d430a3480f05ad7fdbf0a1bb6b1d086b7724ea2385

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nlmv1sac.mwc.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpA2F7.tmp

    Filesize

    1KB

    MD5

    7ad8cd855bce6c8331f43d9f54178ee6

    SHA1

    79cf600cb1eb7b6c48dcd5ac3d2c93a557126dae

    SHA256

    82abb88a75ce212945b2638e22c3e85b8c036d01bc422c31492d8730a0296902

    SHA512

    9a83f96df5029ca0a351414b4ea2458cbf71d646798083450aea29d000173ce5046fdfb607a513eb421dc6a7b4f447102357b5522cfe2eef0e804a9c28b17056

  • memory/232-8-0x0000000005D40000-0x0000000005D56000-memory.dmp

    Filesize

    88KB

  • memory/232-13-0x0000000074890000-0x0000000075040000-memory.dmp

    Filesize

    7.7MB

  • memory/232-6-0x0000000005BD0000-0x0000000005BE8000-memory.dmp

    Filesize

    96KB

  • memory/232-7-0x0000000005D30000-0x0000000005D3E000-memory.dmp

    Filesize

    56KB

  • memory/232-4-0x0000000005A20000-0x0000000005A30000-memory.dmp

    Filesize

    64KB

  • memory/232-9-0x00000000082E0000-0x0000000008364000-memory.dmp

    Filesize

    528KB

  • memory/232-10-0x000000000AA10000-0x000000000AAAC000-memory.dmp

    Filesize

    624KB

  • memory/232-5-0x0000000005990000-0x000000000599A000-memory.dmp

    Filesize

    40KB

  • memory/232-16-0x0000000005A20000-0x0000000005A30000-memory.dmp

    Filesize

    64KB

  • memory/232-3-0x00000000058D0000-0x0000000005962000-memory.dmp

    Filesize

    584KB

  • memory/232-2-0x0000000005DE0000-0x0000000006384000-memory.dmp

    Filesize

    5.6MB

  • memory/232-48-0x0000000074890000-0x0000000075040000-memory.dmp

    Filesize

    7.7MB

  • memory/232-0-0x0000000000E50000-0x0000000000EFC000-memory.dmp

    Filesize

    688KB

  • memory/232-1-0x0000000074890000-0x0000000075040000-memory.dmp

    Filesize

    7.7MB

  • memory/2304-47-0x0000000005E50000-0x00000000061A4000-memory.dmp

    Filesize

    3.3MB

  • memory/2304-50-0x0000000006720000-0x000000000676C000-memory.dmp

    Filesize

    304KB

  • memory/2304-25-0x0000000005450000-0x00000000054B6000-memory.dmp

    Filesize

    408KB

  • memory/2304-89-0x0000000074890000-0x0000000075040000-memory.dmp

    Filesize

    7.7MB

  • memory/2304-26-0x00000000054C0000-0x0000000005526000-memory.dmp

    Filesize

    408KB

  • memory/2304-17-0x0000000004DD0000-0x0000000004E06000-memory.dmp

    Filesize

    216KB

  • memory/2304-18-0x0000000074890000-0x0000000075040000-memory.dmp

    Filesize

    7.7MB

  • memory/2304-24-0x00000000052B0000-0x00000000052D2000-memory.dmp

    Filesize

    136KB

  • memory/2304-20-0x0000000004F60000-0x0000000004F70000-memory.dmp

    Filesize

    64KB

  • memory/2304-78-0x00000000078A0000-0x00000000078B1000-memory.dmp

    Filesize

    68KB

  • memory/2304-49-0x0000000006360000-0x000000000637E000-memory.dmp

    Filesize

    120KB

  • memory/2304-51-0x0000000007330000-0x0000000007362000-memory.dmp

    Filesize

    200KB

  • memory/2304-52-0x0000000070F60000-0x0000000070FAC000-memory.dmp

    Filesize

    304KB

  • memory/2304-62-0x0000000006910000-0x000000000692E000-memory.dmp

    Filesize

    120KB

  • memory/2304-63-0x0000000007370000-0x0000000007413000-memory.dmp

    Filesize

    652KB

  • memory/2304-19-0x0000000004F60000-0x0000000004F70000-memory.dmp

    Filesize

    64KB

  • memory/2304-74-0x0000000007DA0000-0x000000000841A000-memory.dmp

    Filesize

    6.5MB

  • memory/2304-75-0x0000000007490000-0x00000000074AA000-memory.dmp

    Filesize

    104KB

  • memory/2304-76-0x0000000007500000-0x000000000750A000-memory.dmp

    Filesize

    40KB

  • memory/3452-64-0x0000000070F60000-0x0000000070FAC000-memory.dmp

    Filesize

    304KB

  • memory/3452-77-0x0000000007610000-0x00000000076A6000-memory.dmp

    Filesize

    600KB

  • memory/3452-79-0x00000000075C0000-0x00000000075CE000-memory.dmp

    Filesize

    56KB

  • memory/3452-80-0x00000000075D0000-0x00000000075E4000-memory.dmp

    Filesize

    80KB

  • memory/3452-81-0x00000000076D0000-0x00000000076EA000-memory.dmp

    Filesize

    104KB

  • memory/3452-82-0x00000000076B0000-0x00000000076B8000-memory.dmp

    Filesize

    32KB

  • memory/3452-85-0x0000000074890000-0x0000000075040000-memory.dmp

    Filesize

    7.7MB

  • memory/3452-21-0x0000000074890000-0x0000000075040000-memory.dmp

    Filesize

    7.7MB

  • memory/3452-22-0x00000000051B0000-0x00000000057D8000-memory.dmp

    Filesize

    6.2MB

  • memory/4224-27-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/4224-90-0x0000000006380000-0x00000000063D0000-memory.dmp

    Filesize

    320KB