Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-03-2023 02:11

General

  • Target

    2f1daf41d17043e9b479e306c5d7467d62d2da473fee1d1781fbde4e415114ed.exe

  • Size

    3.4MB

  • MD5

    2fa49cce2716beaa8747f80a1ff23a5f

  • SHA1

    63cafe83dfbd6dfae9f5d5796e9c49faa7f26259

  • SHA256

    2f1daf41d17043e9b479e306c5d7467d62d2da473fee1d1781fbde4e415114ed

  • SHA512

    b50530ebd1def720da9090deec61e086c8cf73b3919ab3aad3cf1290fb65922655c8a0ea67e5a6ccaec5178431e667bc9d70b35925b9dd52ce29a65726402d61

  • SSDEEP

    49152:lr1c7Kvf8e9HTgXHXayMSTQ5c1ztH9rDDQvOJRg05T0Oa/rm2ho8IucxzrurVlon:+Kvfd94XayMT5sH9M0aS8o9uWyUhHy+

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 2 IoCs
  • Modifies file permissions 1 TTPs 3 IoCs
  • UPX packed file 11 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks whether UAC is enabled 1 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2f1daf41d17043e9b479e306c5d7467d62d2da473fee1d1781fbde4e415114ed.exe
    "C:\Users\Admin\AppData\Local\Temp\2f1daf41d17043e9b479e306c5d7467d62d2da473fee1d1781fbde4e415114ed.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4816
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
      "C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319\\AppLaunch.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:364
      • C:\Windows\SysWOW64\icacls.exe
        "C:\Windows\System32\icacls.exe" "C:\ProgramData\Templatesssh-type0.4.9.7" /inheritance:e /deny "*S-1-1-0:(R,REA,RA,RD)"
        3⤵
        • Modifies file permissions
        PID:2644
      • C:\Windows\SysWOW64\icacls.exe
        "C:\Windows\System32\icacls.exe" "C:\ProgramData\Templatesssh-type0.4.9.7" /inheritance:e /deny "*S-1-5-7:(R,REA,RA,RD)"
        3⤵
        • Modifies file permissions
        PID:2212
      • C:\Windows\SysWOW64\icacls.exe
        "C:\Windows\System32\icacls.exe" "C:\ProgramData\Templatesssh-type0.4.9.7" /inheritance:e /deny "admin:(R,REA,RA,RD)"
        3⤵
        • Modifies file permissions
        PID:4408
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /CREATE /TN "Templatesssh-type0.4.9.7\Templatesssh-type0.4.9.7" /TR "C:\ProgramData\Templatesssh-type0.4.9.7\Templatesssh-type0.4.9.7.exe" /SC MINUTE
        3⤵
        • Creates scheduled task(s)
        PID:4004
      • C:\ProgramData\Templatesssh-type0.4.9.7\Templatesssh-type0.4.9.7.exe
        "C:\ProgramData\Templatesssh-type0.4.9.7\Templatesssh-type0.4.9.7.exe" "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Checks whether UAC is enabled
        PID:4788
  • C:\ProgramData\Templatesssh-type0.4.9.7\Templatesssh-type0.4.9.7.exe
    C:\ProgramData\Templatesssh-type0.4.9.7\Templatesssh-type0.4.9.7.exe
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Executes dropped EXE
    • Checks whether UAC is enabled
    PID:4028

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

File Permissions Modification

1
T1222

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Templatesssh-type0.4.9.7\Templatesssh-type0.4.9.7.exe
    Filesize

    675.7MB

    MD5

    56b334c425f0a111cb9e2c2873ac4250

    SHA1

    a299b5dc9459c3dd412ea69ea021efaaa4009d4f

    SHA256

    74997e4df7f595e94ddaac76a9c66ccb4af2fa41d54cd93cd61ab0e1b6c76c4e

    SHA512

    57615c58549f6f4a333ee98f30cc1c41b70490a00f49191ac470b18923b63a29e9e1272f27fa5ea2f5d3c07e59c63e3c93802cb4229b4abcc51832f6e2113aec

  • C:\ProgramData\Templatesssh-type0.4.9.7\Templatesssh-type0.4.9.7.exe
    Filesize

    683.6MB

    MD5

    111a21944f4dfb1991bdd75ebfd45d60

    SHA1

    e6ddabdca95c2b04447954f48afbda420817066a

    SHA256

    daf5d538ec932539a55f499f2d481d1f3b19a6d23e8c2d5a8ed31f25c73ed153

    SHA512

    bdc60234e7f0b67a66cb751beaa22b0e5ab838d0fddc859535c927e2c2d79ba8459ab66d72daf81742adfa68cba4b21a7339c69874a3d2a375840ab034fba87b

  • C:\ProgramData\Templatesssh-type0.4.9.7\Templatesssh-type0.4.9.7.exe
    Filesize

    666.4MB

    MD5

    e902de9f83e8394e1ebf8a78f7b32a97

    SHA1

    00d76bd9e5b3a11d43ac60d896e1cafbf0e37dda

    SHA256

    6fa92a7f9b37805f4eef263a37c6cc2c98f82c8eaaaa3cea1471f1e3f42842a0

    SHA512

    5920ebfe1fe2668bfd2df4ee789f713eb7e58049bd397f059c388c5a1aa9fdced2dbc98f0d43b97c755df7a0bebb6d5b7d88eafb89cda3c5ded122d2585e70b1

  • C:\ProgramData\Templatesssh-type0.4.9.7\Templatesssh-type0.4.9.7.exe
    Filesize

    193.6MB

    MD5

    0beabedaaf445d37ffbac96daaf8dc2f

    SHA1

    e0ec8ee211c08f768aff9288e7dbc292f40979a8

    SHA256

    8de583d535fd4cd6b2875eb0c24290d03d1766b0744ea4d347d647d83afc147a

    SHA512

    11eeb990f3214bbf5f46df52143fafa34faafdff35589051a004963f0cdffdaf50595b6159d0668f34fd0b810dbbb1651ba8d7405f7a41d55570380be912ffd7

  • memory/364-141-0x0000000005250000-0x0000000005260000-memory.dmp
    Filesize

    64KB

  • memory/364-142-0x0000000005250000-0x0000000005260000-memory.dmp
    Filesize

    64KB

  • memory/364-133-0x0000000000720000-0x0000000000A7C000-memory.dmp
    Filesize

    3.4MB

  • memory/364-140-0x0000000005190000-0x000000000519A000-memory.dmp
    Filesize

    40KB

  • memory/364-139-0x0000000004FF0000-0x0000000005082000-memory.dmp
    Filesize

    584KB

  • memory/364-138-0x0000000005500000-0x0000000005AA4000-memory.dmp
    Filesize

    5.6MB

  • memory/4028-157-0x00007FF7CFCB0000-0x00007FF7D01CF000-memory.dmp
    Filesize

    5.1MB

  • memory/4028-158-0x00007FF7CFCB0000-0x00007FF7D01CF000-memory.dmp
    Filesize

    5.1MB

  • memory/4028-159-0x00007FF7CFCB0000-0x00007FF7D01CF000-memory.dmp
    Filesize

    5.1MB

  • memory/4788-153-0x00007FF7CFCB0000-0x00007FF7D01CF000-memory.dmp
    Filesize

    5.1MB

  • memory/4788-152-0x00007FF7CFCB0000-0x00007FF7D01CF000-memory.dmp
    Filesize

    5.1MB

  • memory/4788-154-0x00007FF7CFCB0000-0x00007FF7D01CF000-memory.dmp
    Filesize

    5.1MB

  • memory/4788-155-0x00007FF7CFCB0000-0x00007FF7D01CF000-memory.dmp
    Filesize

    5.1MB