Analysis

  • max time kernel
    118s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    29-03-2024 01:55

General

  • Target

    ae7f2736fd9aa11676e139b0d89f702cd2fab6660b9b589c1feddc4898520c41.exe

  • Size

    810KB

  • MD5

    dfa4d69d102efe18603b643e03cd916f

  • SHA1

    104857721a2a10211bf4638fc1aac4f01026839d

  • SHA256

    ae7f2736fd9aa11676e139b0d89f702cd2fab6660b9b589c1feddc4898520c41

  • SHA512

    0e248fc8bbc5db13db05c266b46a0bbd4900de17c5208c881fc66ff0732cd67af50000936da1a1b198fefa9e9407388fdf9ff78116b5b2abdaa02817a67f46fe

  • SSDEEP

    12288:GfpsApRsBWD84RF1RSaXXqftMwjfBCQr60ijTLGSCB8rBCg09poeV:GtpRse40MvCVTGhBoCX9

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ae7f2736fd9aa11676e139b0d89f702cd2fab6660b9b589c1feddc4898520c41.exe
    "C:\Users\Admin\AppData\Local\Temp\ae7f2736fd9aa11676e139b0d89f702cd2fab6660b9b589c1feddc4898520c41.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1292
    • 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\ae7f2736fd9aa11676e139b0d89f702cd2fab6660b9b589c1feddc4898520c41.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2564
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\uhoFDbAUHRPNgj.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2636
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\uhoFDbAUHRPNgj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC1C9.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2656
    • C:\Users\Admin\AppData\Local\Temp\ae7f2736fd9aa11676e139b0d89f702cd2fab6660b9b589c1feddc4898520c41.exe
      "C:\Users\Admin\AppData\Local\Temp\ae7f2736fd9aa11676e139b0d89f702cd2fab6660b9b589c1feddc4898520c41.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2436

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\tmpC1C9.tmp
    Filesize

    1KB

    MD5

    6e847a37d43160ff7d51c9acd78086b8

    SHA1

    1d212a752cd463483f0a1709130a3639cd2c46a9

    SHA256

    37a48690de6e9e9c6fce655f8cd5a44266f4f825452cc75b9329375260580ac0

    SHA512

    cc1d5bd8dc9d795cdb63c4a54a8e1423994ffe3257d6dd0ac834af9d344ee320aa013e22d6a470ef24c50fc5e02ddb81bcac4a42ce330e1eda4499e862024e11

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
    Filesize

    7KB

    MD5

    1ff325c87601d00e4859d7c39dc3b2c3

    SHA1

    c44258e047cc8187189b9cfb45b190161508916b

    SHA256

    6f7c1dcaa996274e1b9464fd61e2e720885d9ffb82335232f31c1dc0b9d6844d

    SHA512

    c40958dadeaee2ff4f98a9dffc3800076cf9e3c4903407bd01262ede094151f0bbdb304b909163a39a0fc667cddcabf4218d07c739d6289617c67f083cd5c616

  • memory/1292-27-0x0000000074B10000-0x00000000751FE000-memory.dmp
    Filesize

    6.9MB

  • memory/1292-3-0x0000000000440000-0x000000000045A000-memory.dmp
    Filesize

    104KB

  • memory/1292-4-0x0000000000460000-0x000000000046C000-memory.dmp
    Filesize

    48KB

  • memory/1292-5-0x0000000005C40000-0x0000000005CC2000-memory.dmp
    Filesize

    520KB

  • memory/1292-2-0x0000000004840000-0x0000000004880000-memory.dmp
    Filesize

    256KB

  • memory/1292-0-0x0000000074B10000-0x00000000751FE000-memory.dmp
    Filesize

    6.9MB

  • memory/1292-1-0x0000000000FC0000-0x0000000001090000-memory.dmp
    Filesize

    832KB

  • memory/2436-18-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2436-19-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2436-21-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2436-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/2436-25-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2436-43-0x0000000004A30000-0x0000000004A70000-memory.dmp
    Filesize

    256KB

  • memory/2436-30-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2436-17-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2436-42-0x0000000074B10000-0x00000000751FE000-memory.dmp
    Filesize

    6.9MB

  • memory/2436-28-0x0000000000400000-0x0000000000440000-memory.dmp
    Filesize

    256KB

  • memory/2436-36-0x0000000074B10000-0x00000000751FE000-memory.dmp
    Filesize

    6.9MB

  • memory/2564-41-0x000000006F680000-0x000000006FC2B000-memory.dmp
    Filesize

    5.7MB

  • memory/2564-33-0x000000006F680000-0x000000006FC2B000-memory.dmp
    Filesize

    5.7MB

  • memory/2564-39-0x00000000025C0000-0x0000000002600000-memory.dmp
    Filesize

    256KB

  • memory/2564-34-0x000000006F680000-0x000000006FC2B000-memory.dmp
    Filesize

    5.7MB

  • memory/2636-35-0x000000006F680000-0x000000006FC2B000-memory.dmp
    Filesize

    5.7MB

  • memory/2636-37-0x0000000001F50000-0x0000000001F90000-memory.dmp
    Filesize

    256KB

  • memory/2636-38-0x0000000001F50000-0x0000000001F90000-memory.dmp
    Filesize

    256KB

  • memory/2636-40-0x000000006F680000-0x000000006FC2B000-memory.dmp
    Filesize

    5.7MB

  • memory/2636-32-0x0000000001F50000-0x0000000001F90000-memory.dmp
    Filesize

    256KB

  • memory/2636-31-0x000000006F680000-0x000000006FC2B000-memory.dmp
    Filesize

    5.7MB