Analysis

  • max time kernel
    128s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-04-2024 13:55

General

  • Target

    TNT Original Invoice.scr.exe

  • Size

    697KB

  • MD5

    4aa63ea35a6a68252888080722f2b403

  • SHA1

    63ecde53df066919f84d35926dbea4efc1610b00

  • SHA256

    8f26ff4683a2d8c5dda6b8aff8c4d6b95ffe97c2432b413e0f8f0a0c16c96d32

  • SHA512

    a36aa7db91c5a98964b9285e85d07b255b4449dfd361ef09d8c4a8239c80adf895756c048f9ddc5ef9e35481a490005ace3aa36d1f93a0d59e80edae50ee8aa3

  • SSDEEP

    12288:2+DbgRB778QekIKVkQv77DBpPMJ3aofMw98A/wR0Q+bnEimiQZWOWiP6ZtZbUqu9:vgRB1HbGHfMv0wR0vEJN6vpR+

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.scr.exe
    "C:\Users\Admin\AppData\Local\Temp\TNT Original Invoice.scr.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2140
    • 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.scr.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:844
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\QKidaN.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3612
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QKidaN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8A4E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2288
    • C:\Users\Admin\AppData\Local\Temp\TNT Original Invoice.scr.exe
      "C:\Users\Admin\AppData\Local\Temp\TNT Original Invoice.scr.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3464

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Replay Monitor

Loading Replay Monitor...

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

    a80660431644dc43307b4d8081f29f55

    SHA1

    e1123bf4dc925708abf88b858591e64749111c2e

    SHA256

    e0b55e4aab28888c98834741a134e154127377644fbb0727b8d954f32cb5db96

    SHA512

    24c553186abc5fc3bac543e0f5fc159695368c01cfb619f6ab357ad2cc502d325538f5cefe9d852d9dc46c03f95e3ec06f82292f5464bb718c1464db43eaafe7

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zm1zysi0.vy0.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp8A4E.tmp
    Filesize

    1KB

    MD5

    a3daec8cd5064f2758ba14d6ebbb40fb

    SHA1

    9fc0ec5d1d7cce62ca40c2b394007c28ecb45219

    SHA256

    1a5ffac2c9799b2eee177976ad5b7312adf4ea402c6a74acb55850cb59a085b3

    SHA512

    93f245e89a15f5aef4ac52818a9528f5f0f92115e96cb85988aaa15aab85b013233b167ade6f9f2d26152c7555f57f62aa376a59b4d93946082eb9d52915f4f3

  • memory/844-18-0x00000000748A0000-0x0000000075050000-memory.dmp
    Filesize

    7.7MB

  • memory/844-24-0x0000000004C40000-0x0000000004C62000-memory.dmp
    Filesize

    136KB

  • memory/844-90-0x00000000748A0000-0x0000000075050000-memory.dmp
    Filesize

    7.7MB

  • memory/844-82-0x0000000007060000-0x000000000707A000-memory.dmp
    Filesize

    104KB

  • memory/844-81-0x0000000006F60000-0x0000000006F74000-memory.dmp
    Filesize

    80KB

  • memory/844-80-0x0000000006F50000-0x0000000006F5E000-memory.dmp
    Filesize

    56KB

  • memory/844-79-0x0000000006F20000-0x0000000006F31000-memory.dmp
    Filesize

    68KB

  • memory/844-15-0x0000000000C50000-0x0000000000C86000-memory.dmp
    Filesize

    216KB

  • memory/844-65-0x000000006FCA0000-0x000000006FCEC000-memory.dmp
    Filesize

    304KB

  • memory/844-20-0x0000000000CD0000-0x0000000000CE0000-memory.dmp
    Filesize

    64KB

  • memory/844-19-0x0000000000CD0000-0x0000000000CE0000-memory.dmp
    Filesize

    64KB

  • memory/844-25-0x0000000005340000-0x00000000053A6000-memory.dmp
    Filesize

    408KB

  • memory/844-16-0x0000000004CA0000-0x00000000052C8000-memory.dmp
    Filesize

    6.2MB

  • memory/844-26-0x00000000053B0000-0x0000000005416000-memory.dmp
    Filesize

    408KB

  • memory/2140-1-0x00000000748A0000-0x0000000075050000-memory.dmp
    Filesize

    7.7MB

  • memory/2140-9-0x0000000006010000-0x0000000006094000-memory.dmp
    Filesize

    528KB

  • memory/2140-6-0x0000000004E30000-0x0000000004E48000-memory.dmp
    Filesize

    96KB

  • memory/2140-2-0x00000000052A0000-0x0000000005844000-memory.dmp
    Filesize

    5.6MB

  • memory/2140-4-0x0000000004E80000-0x0000000004E90000-memory.dmp
    Filesize

    64KB

  • memory/2140-8-0x0000000005080000-0x0000000005096000-memory.dmp
    Filesize

    88KB

  • memory/2140-3-0x0000000004CF0000-0x0000000004D82000-memory.dmp
    Filesize

    584KB

  • memory/2140-10-0x00000000061F0000-0x000000000628C000-memory.dmp
    Filesize

    624KB

  • memory/2140-7-0x0000000004E70000-0x0000000004E7E000-memory.dmp
    Filesize

    56KB

  • memory/2140-5-0x0000000004C90000-0x0000000004C9A000-memory.dmp
    Filesize

    40KB

  • memory/2140-17-0x00000000748A0000-0x0000000075050000-memory.dmp
    Filesize

    7.7MB

  • memory/2140-51-0x00000000748A0000-0x0000000075050000-memory.dmp
    Filesize

    7.7MB

  • memory/2140-0-0x00000000001E0000-0x0000000000294000-memory.dmp
    Filesize

    720KB

  • memory/3464-48-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/3464-91-0x0000000006410000-0x0000000006460000-memory.dmp
    Filesize

    320KB

  • memory/3612-46-0x00000000061C0000-0x0000000006514000-memory.dmp
    Filesize

    3.3MB

  • memory/3612-22-0x00000000052A0000-0x00000000052B0000-memory.dmp
    Filesize

    64KB

  • memory/3612-76-0x0000000007B00000-0x0000000007B1A000-memory.dmp
    Filesize

    104KB

  • memory/3612-75-0x0000000008140000-0x00000000087BA000-memory.dmp
    Filesize

    6.5MB

  • memory/3612-77-0x0000000007B70000-0x0000000007B7A000-memory.dmp
    Filesize

    40KB

  • memory/3612-78-0x0000000007D80000-0x0000000007E16000-memory.dmp
    Filesize

    600KB

  • memory/3612-63-0x0000000006D90000-0x0000000006DAE000-memory.dmp
    Filesize

    120KB

  • memory/3612-53-0x000000006FCA0000-0x000000006FCEC000-memory.dmp
    Filesize

    304KB

  • memory/3612-21-0x00000000748A0000-0x0000000075050000-memory.dmp
    Filesize

    7.7MB

  • memory/3612-47-0x00000000067D0000-0x00000000067EE000-memory.dmp
    Filesize

    120KB

  • memory/3612-83-0x0000000007E20000-0x0000000007E28000-memory.dmp
    Filesize

    32KB

  • memory/3612-89-0x00000000748A0000-0x0000000075050000-memory.dmp
    Filesize

    7.7MB

  • memory/3612-49-0x00000000068B0000-0x00000000068FC000-memory.dmp
    Filesize

    304KB

  • memory/3612-23-0x00000000052A0000-0x00000000052B0000-memory.dmp
    Filesize

    64KB

  • memory/3612-64-0x0000000007A10000-0x0000000007AB3000-memory.dmp
    Filesize

    652KB

  • memory/3612-52-0x00000000077D0000-0x0000000007802000-memory.dmp
    Filesize

    200KB