Analysis

  • max time kernel
    58s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    03-04-2023 08:35

General

  • Target

    SOA 22011~2302.exe

  • Size

    628KB

  • MD5

    d3fea9f328fda4aacb4b5076701ce969

  • SHA1

    fe23b935f871609c836b1b5cc4c598da2785f970

  • SHA256

    45981fd05046a30bdeb47e1976b3eb1c82d445647213095ca17168e1eb35be7b

  • SHA512

    5dd2d7c724c81af1e1be8ed9b29b7df5e77b6c1de9beea07849a8bc0beb9870dfcb22032ee6267ce490d827f5b0120cf38e0621e8a34ace7cdf844ed97a68943

  • SSDEEP

    12288:4D/OVtLVzLwrm1SR9nSzvGvr8+MF561/To+E4eK9QCZ:iwSYvGvr8+M/61/k4l9

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5663632223:AAG5KHZDs7KWoaqTYx3lSyFlOdfD9vGegQo/

Signatures

  • AgentTesla

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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). Likely ransomware behaviour.

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SOA 22011~2302.exe
    "C:\Users\Admin\AppData\Local\Temp\SOA 22011~2302.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BJPQnFaVXUr.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1168
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BJPQnFaVXUr" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC3CD.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:872
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1316

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpC3CD.tmp
    Filesize

    1KB

    MD5

    1fc30c977d5d4085004e740c5d7e8a1a

    SHA1

    b1dcd98420452c50e15868a7b56213e37271acdc

    SHA256

    4e40bd7be2a0b7584f5a51882512bbe0e635c8ac7b52fb997f809c8b25e61f93

    SHA512

    d01747d0d91dcb22338f91c2f4d37d385ddddaa741b0dd8549fdae9d75adfcb2c573468e19576dffec651d767e691b4171018ef00f397acc62db78d00c477bee

  • memory/1168-82-0x00000000026B0000-0x00000000026F0000-memory.dmp
    Filesize

    256KB

  • memory/1168-81-0x00000000026B0000-0x00000000026F0000-memory.dmp
    Filesize

    256KB

  • memory/1168-70-0x00000000026B0000-0x00000000026F0000-memory.dmp
    Filesize

    256KB

  • memory/1316-74-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/1316-78-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/1316-83-0x0000000004DA0000-0x0000000004DE0000-memory.dmp
    Filesize

    256KB

  • memory/1316-80-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/1316-76-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/1316-72-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/1316-75-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
    Filesize

    4KB

  • memory/1316-71-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/1316-73-0x0000000000400000-0x0000000000430000-memory.dmp
    Filesize

    192KB

  • memory/2040-57-0x0000000000C90000-0x0000000000CD0000-memory.dmp
    Filesize

    256KB

  • memory/2040-69-0x0000000004F40000-0x0000000004F72000-memory.dmp
    Filesize

    200KB

  • memory/2040-54-0x0000000001340000-0x00000000013E2000-memory.dmp
    Filesize

    648KB

  • memory/2040-68-0x0000000004800000-0x0000000004806000-memory.dmp
    Filesize

    24KB

  • memory/2040-59-0x0000000005A60000-0x0000000005AD8000-memory.dmp
    Filesize

    480KB

  • memory/2040-58-0x00000000002B0000-0x00000000002BC000-memory.dmp
    Filesize

    48KB

  • memory/2040-56-0x00000000002A0000-0x00000000002B4000-memory.dmp
    Filesize

    80KB

  • memory/2040-55-0x0000000000C90000-0x0000000000CD0000-memory.dmp
    Filesize

    256KB

  • memory/2040-60-0x0000000000C90000-0x0000000000CD0000-memory.dmp
    Filesize

    256KB