Analysis

  • max time kernel
    134s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-03-2024 01:10

General

  • Target

    DETAILS.exe

  • Size

    728KB

  • MD5

    339649aa12a77cfcc09c7b07fc9d7f52

  • SHA1

    038ef4d52e2553340063d713660a1c4aa1fb7619

  • SHA256

    922ed44d8e5c7526f172f18f7f2bcb352ae3c89295aa0b18448e6e18892ec4ef

  • SHA512

    c329d09e06adf39e27ea380ada1913ecf3ef4211c3edcd1f3c1515f55fc0e9360e256efe7f1adc57852e56905e0376b61c87151e543bf8461e2e12c5d52196c2

  • SSDEEP

    12288:3JglQx+3ZRl5RY4btD+K5t7UQC4u88ildNMPbUrpOwD4muneIjRxmL87vWX1pfSf:ZpxQRhtV88dgbUdOwTunGL8j15ya0M

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.itresinc.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    MT]ANFjWzKTA

Extracted

Family

agenttesla

Credentials

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.

  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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 WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DETAILS.exe
    "C:\Users\Admin\AppData\Local\Temp\DETAILS.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:636
    • 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\DETAILS.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1520
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TQUDbFDZarHZ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1200
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TQUDbFDZarHZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp807A.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2336
    • C:\Users\Admin\AppData\Local\Temp\DETAILS.exe
      "C:\Users\Admin\AppData\Local\Temp\DETAILS.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4032

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\DETAILS.exe.log
    Filesize

    1KB

    MD5

    7cad59aef5a93f093b6ba494f13f796f

    SHA1

    3cef97b77939bfc06dfd3946fc1a8cd159f67100

    SHA256

    1e1b444fe2d8772f6709b22b94bb5b0aa7fa590f6a693705d9bf1f2f71267a55

    SHA512

    8cedd03efec34c6226a01fd6b4831a689be16545ea6b849cd96f775e0722bfefd4b47f3dd8401d2080d341d4319f75995ece60de44352a1f86a2e5dc01e6210b

  • 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

    a0570c084b94e5e1b48bd8b29ba19f95

    SHA1

    4434ec71e963de58d52fda88a599a4ef4193b69e

    SHA256

    b5d8eddeb4fb9029c61993b126c8f20f25903d455d256c9a76da7b356579fdf1

    SHA512

    9ff5878a830f87c9ab64b11963e668fb8d2ce4e2e3165101ab84a51d10cbb9827af1894f26c029c30af3ec4a0075563880669f55c6ec35c710099972d21d3336

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_b13cgomq.xrl.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp807A.tmp
    MD5

    d41d8cd98f00b204e9800998ecf8427e

    SHA1

    da39a3ee5e6b4b0d3255bfef95601890afd80709

    SHA256

    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

    SHA512

    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

  • memory/636-7-0x0000000008590000-0x000000000862C000-memory.dmp
    Filesize

    624KB

  • memory/636-3-0x00000000054F0000-0x0000000005582000-memory.dmp
    Filesize

    584KB

  • memory/636-47-0x0000000074F70000-0x0000000075720000-memory.dmp
    Filesize

    7.7MB

  • memory/636-8-0x0000000008580000-0x0000000008592000-memory.dmp
    Filesize

    72KB

  • memory/636-9-0x0000000006AB0000-0x0000000006ABC000-memory.dmp
    Filesize

    48KB

  • memory/636-10-0x0000000008680000-0x0000000008704000-memory.dmp
    Filesize

    528KB

  • memory/636-6-0x00000000056C0000-0x00000000056CA000-memory.dmp
    Filesize

    40KB

  • memory/636-1-0x0000000000A10000-0x0000000000ACA000-memory.dmp
    Filesize

    744KB

  • memory/636-0-0x0000000074F70000-0x0000000075720000-memory.dmp
    Filesize

    7.7MB

  • memory/636-5-0x0000000005780000-0x0000000005790000-memory.dmp
    Filesize

    64KB

  • memory/636-2-0x0000000005AA0000-0x0000000006044000-memory.dmp
    Filesize

    5.6MB

  • memory/636-4-0x0000000006050000-0x00000000063A4000-memory.dmp
    Filesize

    3.3MB

  • memory/1200-93-0x0000000074F70000-0x0000000075720000-memory.dmp
    Filesize

    7.7MB

  • memory/1200-22-0x00000000051F0000-0x0000000005200000-memory.dmp
    Filesize

    64KB

  • memory/1200-23-0x0000000005FD0000-0x0000000006036000-memory.dmp
    Filesize

    408KB

  • memory/1200-25-0x0000000006040000-0x00000000060A6000-memory.dmp
    Filesize

    408KB

  • memory/1200-87-0x0000000007CD0000-0x0000000007CD8000-memory.dmp
    Filesize

    32KB

  • memory/1200-19-0x0000000074F70000-0x0000000075720000-memory.dmp
    Filesize

    7.7MB

  • memory/1200-79-0x0000000008000000-0x000000000867A000-memory.dmp
    Filesize

    6.5MB

  • memory/1200-16-0x0000000005830000-0x0000000005E58000-memory.dmp
    Filesize

    6.2MB

  • memory/1200-53-0x000000007F880000-0x000000007F890000-memory.dmp
    Filesize

    64KB

  • memory/1200-66-0x00000000051F0000-0x0000000005200000-memory.dmp
    Filesize

    64KB

  • memory/1200-67-0x0000000007850000-0x000000000786E000-memory.dmp
    Filesize

    120KB

  • memory/1200-55-0x00000000712B0000-0x00000000712FC000-memory.dmp
    Filesize

    304KB

  • memory/1520-17-0x0000000074F70000-0x0000000075720000-memory.dmp
    Filesize

    7.7MB

  • memory/1520-82-0x00000000075C0000-0x0000000007656000-memory.dmp
    Filesize

    600KB

  • memory/1520-51-0x0000000006550000-0x000000000659C000-memory.dmp
    Filesize

    304KB

  • memory/1520-52-0x000000007EFB0000-0x000000007EFC0000-memory.dmp
    Filesize

    64KB

  • memory/1520-50-0x0000000006020000-0x000000000603E000-memory.dmp
    Filesize

    120KB

  • memory/1520-56-0x00000000712B0000-0x00000000712FC000-memory.dmp
    Filesize

    304KB

  • memory/1520-77-0x0000000007210000-0x00000000072B3000-memory.dmp
    Filesize

    652KB

  • memory/1520-78-0x0000000002720000-0x0000000002730000-memory.dmp
    Filesize

    64KB

  • memory/1520-15-0x0000000002730000-0x0000000002766000-memory.dmp
    Filesize

    216KB

  • memory/1520-94-0x0000000074F70000-0x0000000075720000-memory.dmp
    Filesize

    7.7MB

  • memory/1520-18-0x0000000002720000-0x0000000002730000-memory.dmp
    Filesize

    64KB

  • memory/1520-80-0x0000000007340000-0x000000000735A000-memory.dmp
    Filesize

    104KB

  • memory/1520-81-0x00000000073B0000-0x00000000073BA000-memory.dmp
    Filesize

    40KB

  • memory/1520-54-0x00000000071B0000-0x00000000071E2000-memory.dmp
    Filesize

    200KB

  • memory/1520-83-0x0000000007540000-0x0000000007551000-memory.dmp
    Filesize

    68KB

  • memory/1520-84-0x0000000007570000-0x000000000757E000-memory.dmp
    Filesize

    56KB

  • memory/1520-85-0x0000000007580000-0x0000000007594000-memory.dmp
    Filesize

    80KB

  • memory/1520-86-0x0000000007680000-0x000000000769A000-memory.dmp
    Filesize

    104KB

  • memory/1520-21-0x0000000005050000-0x0000000005072000-memory.dmp
    Filesize

    136KB

  • memory/1520-24-0x0000000002720000-0x0000000002730000-memory.dmp
    Filesize

    64KB

  • memory/4032-44-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/4032-48-0x0000000074F70000-0x0000000075720000-memory.dmp
    Filesize

    7.7MB

  • memory/4032-49-0x00000000059A0000-0x00000000059B0000-memory.dmp
    Filesize

    64KB

  • memory/4032-95-0x0000000006F60000-0x0000000006FB0000-memory.dmp
    Filesize

    320KB

  • memory/4032-96-0x0000000074F70000-0x0000000075720000-memory.dmp
    Filesize

    7.7MB

  • memory/4032-97-0x00000000059A0000-0x00000000059B0000-memory.dmp
    Filesize

    64KB