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
    24-05-2024 13:03

General

  • Target

    FW CMA SHZ Freight invoice CHN1080769.exe

  • Size

    683KB

  • MD5

    3288dbaae811a799ea563988c0d78315

  • SHA1

    48802f823b253a45d829b15bd0802db54ce35993

  • SHA256

    e0e366834de34a6e93035842b46662c2b1b05d350c1218953f8faab632ead3ae

  • SHA512

    fc6b2c90ad9c9f2b906a6247230d2f71a0cbe764b0e3ea2c67d49477fb4f81580dd96a5ba2e3d11e92b15f8421b48e8afd7bd06e6d5ee009b8babfc1acf9cc80

  • SSDEEP

    12288:3I23I9uvcHdMFGNX/m7EA++tat0kanlWimxg8NBcHYPLICoPw896GpQkR:YYyK+wGGs+sY8283c4THew8EG9

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FW CMA SHZ Freight invoice CHN1080769.exe
    "C:\Users\Admin\AppData\Local\Temp\FW CMA SHZ Freight invoice CHN1080769.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2068
    • 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\FW CMA SHZ Freight invoice CHN1080769.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2628
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\HDTjheWPb.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2532
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HDTjheWPb" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCCE0.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2600
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1988

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpCCE0.tmp
    Filesize

    1KB

    MD5

    2fe09381557a5024960661ba90558621

    SHA1

    15a7583268d10cd5fda892f3220739b593b027f3

    SHA256

    26bb5e687569fbfce59b9b798422e51337ed0f6243bea9e818e714710199fd90

    SHA512

    4bab0ecbeab11c17dc841a76f6eaae8a363140c355bf74175cc01150b91e5f0acc0bcb448f2104bdd80c7adfb828197474966aff9e8bc57368c55236f91c7829

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\29VFAADVAOWV820RP7OV.temp
    Filesize

    7KB

    MD5

    54dda0ac304cccbcb18391a6d953261d

    SHA1

    78e524f99e39c0c338cf769fa98a20ad16c3f0d3

    SHA256

    52541dfbcdcb95fd5aae4c86f5f3d2695ae684ece01bb329c8b6bcf9ac289b1d

    SHA512

    45f5627c29fe1b61520fb5dba54ae921941169592ce5d787cfbdad6bc6967120126f3b77af0718e54d1120fef88c2a3692e83f23b446b9d7c807e05f878979de

  • memory/1988-30-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/1988-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/1988-20-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/1988-22-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/1988-24-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/1988-26-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/1988-29-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/1988-32-0x0000000000400000-0x0000000000442000-memory.dmp
    Filesize

    264KB

  • memory/2068-7-0x000000007486E000-0x000000007486F000-memory.dmp
    Filesize

    4KB

  • memory/2068-1-0x0000000001180000-0x000000000122E000-memory.dmp
    Filesize

    696KB

  • memory/2068-0-0x000000007486E000-0x000000007486F000-memory.dmp
    Filesize

    4KB

  • memory/2068-2-0x0000000074860000-0x0000000074F4E000-memory.dmp
    Filesize

    6.9MB

  • memory/2068-3-0x0000000004BE0000-0x0000000004C82000-memory.dmp
    Filesize

    648KB

  • memory/2068-33-0x0000000074860000-0x0000000074F4E000-memory.dmp
    Filesize

    6.9MB

  • memory/2068-6-0x00000000053A0000-0x0000000005424000-memory.dmp
    Filesize

    528KB

  • memory/2068-5-0x0000000000570000-0x0000000000580000-memory.dmp
    Filesize

    64KB

  • memory/2068-4-0x00000000006B0000-0x00000000006CA000-memory.dmp
    Filesize

    104KB