Analysis

  • max time kernel
    27s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    01-02-2023 13:29

General

  • Target

    055fc87832ccb0e40d13eb6cf0b67136.exe

  • Size

    3.9MB

  • MD5

    055fc87832ccb0e40d13eb6cf0b67136

  • SHA1

    b6751740b05eab608aad776eea2e8a3f35871c71

  • SHA256

    880716d3e1fe4e69e32f45fbd59b7de7e9d0df1f6912e5f7b39bb4907ede3874

  • SHA512

    ed1cc51fcf3d9403c44ea0f11e8ca472b2724057a5558b01ac7866885a6c45e8c6a550b7d50b1391735cc32d4d12c02e359f3e9f6252af04e4301a61a99d3c7a

  • SSDEEP

    98304:t2mXqUjEBZCW7038QcdfQZcht/c5ilvTilNZwB5E:t2mXpwZT7bdfQZSK

Malware Config

Signatures

  • PrivateLoader

    PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • VMProtect packed file 4 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 4 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 2 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 2 IoCs

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

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\055fc87832ccb0e40d13eb6cf0b67136.exe
    "C:\Users\Admin\AppData\Local\Temp\055fc87832ccb0e40d13eb6cf0b67136.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:1124
    • C:\Users\Admin\Documents\vhCpKxK7vLQ8ZGnqZSzQgN91.exe
      "C:\Users\Admin\Documents\vhCpKxK7vLQ8ZGnqZSzQgN91.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      PID:1652
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /RU "Admin" /tr "C:\Program Files (x86)\PowerControl\PowerControl_Svc.exe" /tn "PowerControl HR" /sc HOURLY /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:1084
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /f /RU "Admin" /tr "C:\Program Files (x86)\PowerControl\PowerControl_Svc.exe" /tn "PowerControl LG" /sc ONLOGON /rl HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:1504

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

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    61KB

    MD5

    fc4666cbca561e864e7fdf883a9e6661

    SHA1

    2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

    SHA256

    10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

    SHA512

    c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    342B

    MD5

    412f712422351b1f752325958790bf9d

    SHA1

    c589f80cc866e0f403956f6847378b48c304b38a

    SHA256

    7d25ef6b1bf583b7551ca38ded3c49e53a21fe03c138f109b52c633657ef1a7c

    SHA512

    fd0b787a4b031d1f9b4ec8170fccc9442efd56ff1028ee1afad1e926cc8f997521d6c69462f6359dd315bd98f2baf382414955ac3ce4dea994d6e149d7edb689

  • C:\Users\Admin\Documents\vhCpKxK7vLQ8ZGnqZSzQgN91.exe
    Filesize

    4.0MB

    MD5

    2d244458e27de830d4dedd8d99cc98c9

    SHA1

    76fa961da3f87f1ca045bf37f71883fb4649a3e7

    SHA256

    6e8b742abfee47d32d9f7287daa0143565ed6f48c4ff9406ac1e8b2290f72c9b

    SHA512

    3e6ed3f757ee8c3251a0e02c3f0fa3e6faeba640d5a83cbd646511cba3de69b8e18aa379560ce0d8489f95b6d2b579dd3213b595ca85122caa9e382ea76e3fab

  • C:\Users\Admin\Documents\vhCpKxK7vLQ8ZGnqZSzQgN91.exe
    Filesize

    4.0MB

    MD5

    2d244458e27de830d4dedd8d99cc98c9

    SHA1

    76fa961da3f87f1ca045bf37f71883fb4649a3e7

    SHA256

    6e8b742abfee47d32d9f7287daa0143565ed6f48c4ff9406ac1e8b2290f72c9b

    SHA512

    3e6ed3f757ee8c3251a0e02c3f0fa3e6faeba640d5a83cbd646511cba3de69b8e18aa379560ce0d8489f95b6d2b579dd3213b595ca85122caa9e382ea76e3fab

  • \Users\Admin\Documents\vhCpKxK7vLQ8ZGnqZSzQgN91.exe
    Filesize

    4.0MB

    MD5

    2d244458e27de830d4dedd8d99cc98c9

    SHA1

    76fa961da3f87f1ca045bf37f71883fb4649a3e7

    SHA256

    6e8b742abfee47d32d9f7287daa0143565ed6f48c4ff9406ac1e8b2290f72c9b

    SHA512

    3e6ed3f757ee8c3251a0e02c3f0fa3e6faeba640d5a83cbd646511cba3de69b8e18aa379560ce0d8489f95b6d2b579dd3213b595ca85122caa9e382ea76e3fab

  • memory/1084-62-0x0000000000000000-mapping.dmp
  • memory/1124-54-0x00000000753F1000-0x00000000753F3000-memory.dmp
    Filesize

    8KB

  • memory/1124-55-0x0000000000030000-0x0000000000629000-memory.dmp
    Filesize

    6.0MB

  • memory/1504-66-0x0000000000000000-mapping.dmp
  • memory/1652-59-0x0000000000000000-mapping.dmp
  • memory/1652-63-0x0000000000F80000-0x000000000174D000-memory.dmp
    Filesize

    7.8MB