Analysis

  • max time kernel
    133s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-03-2023 01:59

General

  • Target

    9570de55edd0673b943373c62f8933668173897cc3a9a7bd976636fae991b5e1.exe

  • Size

    747KB

  • MD5

    8f3cb78bf3632816a1255f1d71836932

  • SHA1

    c858c54d86f8b77118cb561dff239a870db0945a

  • SHA256

    9570de55edd0673b943373c62f8933668173897cc3a9a7bd976636fae991b5e1

  • SHA512

    8b6fe8ef129eda20fd6449a4c67caeff3b0858a2fc246ff230e28b57f03e4fde955faba20b23b20d5802c9506a811624cb6ed45f391ed4f65a3705796287eb2c

  • SSDEEP

    12288:sf14CfyiII23mtF2v700UyxUAvB/+QVKdPDgw:Pit2mA75UyxU6B/+QQdPDg

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 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.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9570de55edd0673b943373c62f8933668173897cc3a9a7bd976636fae991b5e1.exe
    "C:\Users\Admin\AppData\Local\Temp\9570de55edd0673b943373c62f8933668173897cc3a9a7bd976636fae991b5e1.exe"
    1⤵
    • Checks computer location settings
    • Accesses Microsoft Outlook profiles
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:1876
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4448

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tm2wt0pk.tcs.ps1
    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1876-138-0x0000000008800000-0x0000000008822000-memory.dmp
    Filesize

    136KB

  • memory/1876-158-0x00000000057D0000-0x00000000057E0000-memory.dmp
    Filesize

    64KB

  • memory/1876-165-0x0000000008850000-0x00000000088A0000-memory.dmp
    Filesize

    320KB

  • memory/1876-137-0x00000000057F0000-0x00000000057FA000-memory.dmp
    Filesize

    40KB

  • memory/1876-133-0x0000000000D50000-0x0000000000E10000-memory.dmp
    Filesize

    768KB

  • memory/1876-135-0x0000000005830000-0x00000000058C2000-memory.dmp
    Filesize

    584KB

  • memory/1876-136-0x00000000057D0000-0x00000000057E0000-memory.dmp
    Filesize

    64KB

  • memory/1876-166-0x0000000008DE0000-0x0000000008FA2000-memory.dmp
    Filesize

    1.8MB

  • memory/1876-134-0x0000000005D40000-0x00000000062E4000-memory.dmp
    Filesize

    5.6MB

  • memory/4448-156-0x0000000006780000-0x000000000679A000-memory.dmp
    Filesize

    104KB

  • memory/4448-141-0x0000000005B90000-0x0000000005BF6000-memory.dmp
    Filesize

    408KB

  • memory/4448-140-0x0000000005450000-0x0000000005A78000-memory.dmp
    Filesize

    6.2MB

  • memory/4448-147-0x0000000005C00000-0x0000000005C66000-memory.dmp
    Filesize

    408KB

  • memory/4448-155-0x0000000007AE0000-0x000000000815A000-memory.dmp
    Filesize

    6.5MB

  • memory/4448-154-0x0000000006280000-0x000000000629E000-memory.dmp
    Filesize

    120KB

  • memory/4448-157-0x0000000004E10000-0x0000000004E20000-memory.dmp
    Filesize

    64KB

  • memory/4448-160-0x0000000004E10000-0x0000000004E20000-memory.dmp
    Filesize

    64KB

  • memory/4448-159-0x0000000004E10000-0x0000000004E20000-memory.dmp
    Filesize

    64KB

  • memory/4448-139-0x0000000004CD0000-0x0000000004D06000-memory.dmp
    Filesize

    216KB

  • memory/4448-161-0x0000000004E10000-0x0000000004E20000-memory.dmp
    Filesize

    64KB

  • memory/4448-153-0x0000000004E10000-0x0000000004E20000-memory.dmp
    Filesize

    64KB

  • memory/4448-152-0x0000000004E10000-0x0000000004E20000-memory.dmp
    Filesize

    64KB