Analysis

  • max time kernel
    120s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28-03-2024 02:44

General

  • Target

    f1966d8c36df489b3dbf5b888a502de7799b3ff66213806e4dd3633ed8ee2b80.exe

  • Size

    724KB

  • MD5

    0aecae00e463d917ab4ac1ce7e2cdd16

  • SHA1

    7dadf13009e6461dee1cf2a35cb0a8d823c65f25

  • SHA256

    f1966d8c36df489b3dbf5b888a502de7799b3ff66213806e4dd3633ed8ee2b80

  • SHA512

    07690358a37b261ed47fb4c2efc82e47ffdd69eb65a7b886f379b8f0593fa921a99348214c9f99fa3229d2dfb35dfc5ca36512280e4c3633012200a910e60cbd

  • SSDEEP

    12288:RCKLa5WNtA8YoemPMn/9N/q7V9Clyq/xcNipiLLxhpIpXrXzCf8V+g9VmhfkR:oK5NtQbn18xIdMLwbX2U39Vmh6

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    zqamcx.com
  • Port:
    587
  • Username:
    sender@zqamcx.com
  • Password:
    Methodman991
  • Email To:
    method@zqamcx.com

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Detect packed .NET executables. Mostly AgentTeslaV4. 5 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 5 IoCs
  • Detects executables packed with SmartAssembly 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 5 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 5 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 5 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 5 IoCs
  • 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 24 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f1966d8c36df489b3dbf5b888a502de7799b3ff66213806e4dd3633ed8ee2b80.exe
    "C:\Users\Admin\AppData\Local\Temp\f1966d8c36df489b3dbf5b888a502de7799b3ff66213806e4dd3633ed8ee2b80.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2656
    • 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\f1966d8c36df489b3dbf5b888a502de7799b3ff66213806e4dd3633ed8ee2b80.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2488
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\ZnacyxLWb.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2848
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ZnacyxLWb" /XML "C:\Users\Admin\AppData\Local\Temp\tmp367B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:696
    • C:\Users\Admin\AppData\Local\Temp\f1966d8c36df489b3dbf5b888a502de7799b3ff66213806e4dd3633ed8ee2b80.exe
      "C:\Users\Admin\AppData\Local\Temp\f1966d8c36df489b3dbf5b888a502de7799b3ff66213806e4dd3633ed8ee2b80.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2480

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

System Information Discovery

1
T1082

Collection

Data from Local System

4
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp367B.tmp
    Filesize

    1KB

    MD5

    cadf2e9bd9757d775a771f351b2621e7

    SHA1

    ebbfe8115b20a7a06cd4250deca7d052276a685d

    SHA256

    e10f0c80ea697e56859334031bd46b0ef95854851e9200552ad270bbbd75580c

    SHA512

    8a157489cd498391309a4d9bd7dc4b01af2fbea200483bc9a4152a09df9d82dda827106996fb206b5aed7e52bba51190837795227248cfa637fd9df4e96c5b7e

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\9JW7DNXNOFVKWHMDJM4T.temp
    Filesize

    7KB

    MD5

    e28186dc0fca799b992fa77e505db9be

    SHA1

    5501c5588708cc24b9ed73982559b8daa8fad0f8

    SHA256

    c5aeefdc993b74ea8ecd31af10a997c9616adff84b1831d3615a4083d37ffc7b

    SHA512

    30b643aad2fd6c82821cc80b93ea95b2861c0a4c164a24e2f3b80c1ec42d5b179f800cdb38a3ab56c81fa2ecace9c991cdf2aa57026768347351e55be25db150

  • memory/2480-31-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2480-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2480-48-0x0000000004BD0000-0x0000000004C10000-memory.dmp
    Filesize

    256KB

  • memory/2480-33-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2480-44-0x0000000074650000-0x0000000074D3E000-memory.dmp
    Filesize

    6.9MB

  • memory/2480-42-0x0000000004BD0000-0x0000000004C10000-memory.dmp
    Filesize

    256KB

  • memory/2480-49-0x0000000074650000-0x0000000074D3E000-memory.dmp
    Filesize

    6.9MB

  • memory/2480-29-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2480-20-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2480-22-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2480-24-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2480-25-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2488-40-0x0000000002670000-0x00000000026B0000-memory.dmp
    Filesize

    256KB

  • memory/2488-39-0x000000006E1A0000-0x000000006E74B000-memory.dmp
    Filesize

    5.7MB

  • memory/2488-46-0x000000006E1A0000-0x000000006E74B000-memory.dmp
    Filesize

    5.7MB

  • memory/2488-43-0x0000000002670000-0x00000000026B0000-memory.dmp
    Filesize

    256KB

  • memory/2488-37-0x0000000002670000-0x00000000026B0000-memory.dmp
    Filesize

    256KB

  • memory/2488-35-0x000000006E1A0000-0x000000006E74B000-memory.dmp
    Filesize

    5.7MB

  • memory/2656-34-0x0000000074650000-0x0000000074D3E000-memory.dmp
    Filesize

    6.9MB

  • memory/2656-2-0x00000000049D0000-0x0000000004A10000-memory.dmp
    Filesize

    256KB

  • memory/2656-0-0x00000000000D0000-0x0000000000188000-memory.dmp
    Filesize

    736KB

  • memory/2656-1-0x0000000074650000-0x0000000074D3E000-memory.dmp
    Filesize

    6.9MB

  • memory/2656-3-0x0000000000470000-0x0000000000482000-memory.dmp
    Filesize

    72KB

  • memory/2656-4-0x0000000000510000-0x000000000051C000-memory.dmp
    Filesize

    48KB

  • memory/2656-5-0x0000000005320000-0x00000000053A4000-memory.dmp
    Filesize

    528KB

  • memory/2656-7-0x00000000049D0000-0x0000000004A10000-memory.dmp
    Filesize

    256KB

  • memory/2656-6-0x0000000074650000-0x0000000074D3E000-memory.dmp
    Filesize

    6.9MB

  • memory/2848-47-0x000000006E1A0000-0x000000006E74B000-memory.dmp
    Filesize

    5.7MB

  • memory/2848-45-0x00000000025A0000-0x00000000025E0000-memory.dmp
    Filesize

    256KB

  • memory/2848-36-0x000000006E1A0000-0x000000006E74B000-memory.dmp
    Filesize

    5.7MB

  • memory/2848-41-0x00000000025A0000-0x00000000025E0000-memory.dmp
    Filesize

    256KB

  • memory/2848-38-0x000000006E1A0000-0x000000006E74B000-memory.dmp
    Filesize

    5.7MB