Analysis

  • max time kernel
    67s
  • max time network
    54s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-04-2024 01:26

General

  • Target

    TNT Original Invoice.scr

  • 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
    "C:\Users\Admin\AppData\Local\Temp\TNT Original Invoice.scr" /S
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4368
    • 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"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2380
    • 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:2328
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\QKidaN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8722.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1900
    • C:\Users\Admin\AppData\Local\Temp\TNT Original Invoice.scr
      "C:\Users\Admin\AppData\Local\Temp\TNT Original Invoice.scr"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:3148

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

    de97b6babac3b784810ea8db04099d31

    SHA1

    288c10512d3cdcda1bbeeeb18af94af5eea911fe

    SHA256

    7249f28136e7559855627f04f220b6d33662ef601d87f61389e529e4dbd5ebac

    SHA512

    818647c89e0e2b66c91cb44ef5c902db39faac3ff0b29efdf90fb800d5b1f75a58122891b41a88dce2d5fa83faf3f2b6a4897116995298ea7223ec71f41ac978

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nxozpixa.etw.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp8722.tmp
    Filesize

    1KB

    MD5

    b7754cee79929b0d0f7a2e10785e496e

    SHA1

    e969afba9ea947ac6d1966b54d93fef960c5b58f

    SHA256

    4ca568d8793b5350088478a48abeb1f997916d057414697db69e5a3894a497c5

    SHA512

    acf7538b12dac4212af487e5dad9c5ca827501e034d473e2f8f682d975ddeb10064b960603041ce4b3cc792b1bb080a647936a87d5b6f81f8e63865d024b8d8f

  • memory/2328-76-0x00000000079C0000-0x0000000007A56000-memory.dmp
    Filesize

    600KB

  • memory/2328-51-0x0000000070EF0000-0x0000000070F3C000-memory.dmp
    Filesize

    304KB

  • memory/2328-80-0x0000000007980000-0x0000000007994000-memory.dmp
    Filesize

    80KB

  • memory/2328-78-0x0000000007970000-0x000000000797E000-memory.dmp
    Filesize

    56KB

  • memory/2328-82-0x0000000007A60000-0x0000000007A68000-memory.dmp
    Filesize

    32KB

  • memory/2328-72-0x0000000007450000-0x00000000074F3000-memory.dmp
    Filesize

    652KB

  • memory/2328-71-0x00000000069A0000-0x00000000069BE000-memory.dmp
    Filesize

    120KB

  • memory/2328-81-0x0000000007A80000-0x0000000007A9A000-memory.dmp
    Filesize

    104KB

  • memory/2328-50-0x0000000007410000-0x0000000007442000-memory.dmp
    Filesize

    200KB

  • memory/2328-49-0x0000000006460000-0x00000000064AC000-memory.dmp
    Filesize

    304KB

  • memory/2328-48-0x0000000006410000-0x000000000642E000-memory.dmp
    Filesize

    120KB

  • memory/2328-25-0x0000000005D90000-0x0000000005DF6000-memory.dmp
    Filesize

    408KB

  • memory/2328-20-0x0000000074850000-0x0000000075000000-memory.dmp
    Filesize

    7.7MB

  • memory/2328-21-0x0000000004FB0000-0x0000000004FC0000-memory.dmp
    Filesize

    64KB

  • memory/2328-88-0x0000000074850000-0x0000000075000000-memory.dmp
    Filesize

    7.7MB

  • memory/2380-16-0x0000000004B90000-0x0000000004BC6000-memory.dmp
    Filesize

    216KB

  • memory/2380-19-0x0000000005330000-0x0000000005958000-memory.dmp
    Filesize

    6.2MB

  • memory/2380-23-0x00000000052A0000-0x00000000052C2000-memory.dmp
    Filesize

    136KB

  • memory/2380-17-0x0000000074850000-0x0000000075000000-memory.dmp
    Filesize

    7.7MB

  • memory/2380-44-0x0000000005BB0000-0x0000000005F04000-memory.dmp
    Filesize

    3.3MB

  • memory/2380-74-0x0000000007490000-0x00000000074AA000-memory.dmp
    Filesize

    104KB

  • memory/2380-89-0x0000000074850000-0x0000000075000000-memory.dmp
    Filesize

    7.7MB

  • memory/2380-73-0x0000000007AD0000-0x000000000814A000-memory.dmp
    Filesize

    6.5MB

  • memory/2380-18-0x0000000004CF0000-0x0000000004D00000-memory.dmp
    Filesize

    64KB

  • memory/2380-24-0x00000000059D0000-0x0000000005A36000-memory.dmp
    Filesize

    408KB

  • memory/2380-52-0x0000000070EF0000-0x0000000070F3C000-memory.dmp
    Filesize

    304KB

  • memory/2380-77-0x0000000007690000-0x00000000076A1000-memory.dmp
    Filesize

    68KB

  • memory/2380-75-0x0000000007500000-0x000000000750A000-memory.dmp
    Filesize

    40KB

  • memory/3148-79-0x0000000005E50000-0x0000000005EA0000-memory.dmp
    Filesize

    320KB

  • memory/3148-45-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/4368-9-0x00000000063D0000-0x0000000006454000-memory.dmp
    Filesize

    528KB

  • memory/4368-10-0x0000000008C80000-0x0000000008D1C000-memory.dmp
    Filesize

    624KB

  • memory/4368-8-0x0000000006390000-0x00000000063A6000-memory.dmp
    Filesize

    88KB

  • memory/4368-0-0x0000000000770000-0x0000000000824000-memory.dmp
    Filesize

    720KB

  • memory/4368-7-0x0000000006380000-0x000000000638E000-memory.dmp
    Filesize

    56KB

  • memory/4368-15-0x0000000074850000-0x0000000075000000-memory.dmp
    Filesize

    7.7MB

  • memory/4368-6-0x0000000005590000-0x00000000055A8000-memory.dmp
    Filesize

    96KB

  • memory/4368-5-0x0000000005390000-0x000000000539A000-memory.dmp
    Filesize

    40KB

  • memory/4368-4-0x00000000051D0000-0x00000000051E0000-memory.dmp
    Filesize

    64KB

  • memory/4368-3-0x0000000005200000-0x0000000005292000-memory.dmp
    Filesize

    584KB

  • memory/4368-2-0x00000000056D0000-0x0000000005C74000-memory.dmp
    Filesize

    5.6MB

  • memory/4368-1-0x0000000074850000-0x0000000075000000-memory.dmp
    Filesize

    7.7MB

  • memory/4368-47-0x0000000074850000-0x0000000075000000-memory.dmp
    Filesize

    7.7MB