Analysis

  • max time kernel
    173s
  • max time network
    189s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    08-07-2022 15:31

General

  • Target

    9499b0710260447af9975b01db876704513975a9a97c119bf004cc4d497ae0b5.exe

  • Size

    1.9MB

  • MD5

    51fbd9736548de79bdbbece7db6ed4ab

  • SHA1

    2f2c1933a2bd9939eddeffd6615c6ffcb10803c1

  • SHA256

    9499b0710260447af9975b01db876704513975a9a97c119bf004cc4d497ae0b5

  • SHA512

    2f154955e01b8c04dcb07d9728fbdd169d2fee695d98e57a9a95b6e44e305897fc95eae19c121b9a23bdb06598ae9bb4df76496357d29e0238d5e976ddb9ebf4

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Windows security modification 2 TTPs 4 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9499b0710260447af9975b01db876704513975a9a97c119bf004cc4d497ae0b5.exe
    "C:\Users\Admin\AppData\Local\Temp\9499b0710260447af9975b01db876704513975a9a97c119bf004cc4d497ae0b5.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Windows security bypass
    • Checks computer location settings
    • Drops startup file
    • Windows security modification
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2640
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9499b0710260447af9975b01db876704513975a9a97c119bf004cc4d497ae0b5.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2600
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9499b0710260447af9975b01db876704513975a9a97c119bf004cc4d497ae0b5.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4860
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\9499b0710260447af9975b01db876704513975a9a97c119bf004cc4d497ae0b5.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4700
    • 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\9499b0710260447af9975b01db876704513975a9a97c119bf004cc4d497ae0b5.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2144

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    32a8e7377eb98ddc625db6b8e1bd92d8

    SHA1

    4808dc42433273e599aa54b2860eba913722fa58

    SHA256

    d5699a0ee635bb4afc40931e461212fc66858607f4abdf02018e3c5a74aa925f

    SHA512

    581f92fd819d07cff3ed72521a89adacbbf147cf1bdb8037bb858aa7d8f650dec48ce8a4485c9635e5ab33b9b2bd5b94727280c2ea5558098e1395a0b40513c7

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    e6ecddc970dfd6d67b308677d804f974

    SHA1

    d4bdba171a1492160adbcdd9989eab2eac5fca90

    SHA256

    467718ca7ecaca76181f71ec2fa0ff89e9377a92e3605148a634c24a78f6b2b0

    SHA512

    52fe31359269ab01c9f1e3d6a352a1547242ae6e20f7beb0fc1d7a30fa0233af231b4286f8368326b0696d03d61d7246d860d1a3e6a7420c321e6ed696b2ef67

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    740f205325e5e909e66e697ff50f476f

    SHA1

    99e888b9e40640d9f470e9b7babd743635c0e822

    SHA256

    92cf01336a4eb98fb593eb6acd707923e87e8f5568540c5af92b532e85b55e61

    SHA512

    94a0b26e66e72e39931ac5a8280ae42bdc916630c60cf75608d8112d6379a940ff670d27cda4655aee0f7e322252c72d978a2dd0da3b91dc7de2aabba492e07e

  • memory/2144-138-0x0000000000000000-mapping.dmp

  • memory/2144-157-0x0000000007540000-0x0000000007548000-memory.dmp

    Filesize

    32KB

  • memory/2144-148-0x000000006FFA0000-0x000000006FFEC000-memory.dmp

    Filesize

    304KB

  • memory/2144-142-0x0000000005720000-0x0000000005786000-memory.dmp

    Filesize

    408KB

  • memory/2600-154-0x0000000007C40000-0x0000000007CD6000-memory.dmp

    Filesize

    600KB

  • memory/2600-149-0x000000006FFA0000-0x000000006FFEC000-memory.dmp

    Filesize

    304KB

  • memory/2600-135-0x0000000000000000-mapping.dmp

  • memory/2600-153-0x0000000007A40000-0x0000000007A4A000-memory.dmp

    Filesize

    40KB

  • memory/2600-143-0x0000000005E50000-0x0000000005EB6000-memory.dmp

    Filesize

    408KB

  • memory/2600-151-0x00000000079C0000-0x00000000079DA000-memory.dmp

    Filesize

    104KB

  • memory/2600-144-0x0000000005450000-0x000000000546E000-memory.dmp

    Filesize

    120KB

  • memory/2640-130-0x0000000000480000-0x0000000000664000-memory.dmp

    Filesize

    1.9MB

  • memory/2640-134-0x0000000005010000-0x000000000501A000-memory.dmp

    Filesize

    40KB

  • memory/2640-131-0x00000000054E0000-0x0000000005A84000-memory.dmp

    Filesize

    5.6MB

  • memory/2640-132-0x0000000005030000-0x00000000050CC000-memory.dmp

    Filesize

    624KB

  • memory/2640-133-0x00000000050D0000-0x0000000005162000-memory.dmp

    Filesize

    584KB

  • memory/4700-139-0x0000000002270000-0x00000000022A6000-memory.dmp

    Filesize

    216KB

  • memory/4700-137-0x0000000000000000-mapping.dmp

  • memory/4700-152-0x00000000074F0000-0x0000000007B6A000-memory.dmp

    Filesize

    6.5MB

  • memory/4700-141-0x0000000004AC0000-0x0000000004AE2000-memory.dmp

    Filesize

    136KB

  • memory/4700-147-0x000000006FFA0000-0x000000006FFEC000-memory.dmp

    Filesize

    304KB

  • memory/4700-155-0x0000000000610000-0x000000000061E000-memory.dmp

    Filesize

    56KB

  • memory/4700-156-0x00000000070C0000-0x00000000070DA000-memory.dmp

    Filesize

    104KB

  • memory/4700-140-0x0000000004E10000-0x0000000005438000-memory.dmp

    Filesize

    6.2MB

  • memory/4700-145-0x0000000006160000-0x0000000006192000-memory.dmp

    Filesize

    200KB

  • memory/4860-150-0x0000000006CE0000-0x0000000006CFE000-memory.dmp

    Filesize

    120KB

  • memory/4860-136-0x0000000000000000-mapping.dmp

  • memory/4860-146-0x000000006FFA0000-0x000000006FFEC000-memory.dmp

    Filesize

    304KB