Analysis

  • max time kernel
    128s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    16-01-2021 07:32

General

  • Target

    HPScanner_1889752021_Signed_jpg.exe

  • Size

    799KB

  • MD5

    fdc3546aa4db7528d761f18f05fd3518

  • SHA1

    ed49003930ec11fd37ab31260223e4332a8b96b7

  • SHA256

    cb71d650ec068b4c9b15df21b18e013609c5953ad35cd0f3666f65d3239a1354

  • SHA512

    7a74274f3da79db14b6be8bea02a70078e309404486e3be974cbc4f297051e5cb8606c82529132c7109cd85a7e78b085a6b29e42e68c10ddab9735f477f6fd9c

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • 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.

  • 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
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Script User-Agent 2 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HPScanner_1889752021_Signed_jpg.exe
    "C:\Users\Admin\AppData\Local\Temp\HPScanner_1889752021_Signed_jpg.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:1936
    • C:\Users\Admin\AppData\Local\Temp\HPScanner_1889752021_Signed_jpg.exe
      C:\Users\Admin\AppData\Local\Temp\HPScanner_1889752021_Signed_jpg.exe
      2⤵
      • Drops file in Drivers directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:576

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    MD5

    760bc6ddc7cad43652ebde6816b9ba1f

    SHA1

    7757b858bfb38a5e63a4a29e851db26fc6eb0cad

    SHA256

    436af5b1cb775b18f0b261cb594a334a70c0cea3081d3434aff0697fb1db9e46

    SHA512

    98c4f3980a794f33adb27e8710fde952cc606567c5407bed7a9849e496ccb48d1ffdaab5b4bf5f10cc0b248574b93e1fc4434b2981a97bfd929fefea84bd10e6

  • memory/576-3-0x0000000000400000-0x000000000045B000-memory.dmp
    Filesize

    364KB

  • memory/576-4-0x000000000040CD2F-mapping.dmp
  • memory/576-5-0x0000000000400000-0x000000000045B000-memory.dmp
    Filesize

    364KB

  • memory/576-6-0x0000000001E40000-0x0000000001E51000-memory.dmp
    Filesize

    68KB

  • memory/576-7-0x0000000073D80000-0x000000007446E000-memory.dmp
    Filesize

    6.9MB

  • memory/576-8-0x0000000002280000-0x00000000022CD000-memory.dmp
    Filesize

    308KB

  • memory/576-9-0x00000000046F0000-0x000000000473B000-memory.dmp
    Filesize

    300KB

  • memory/1752-2-0x000007FEF5BC0000-0x000007FEF5E3A000-memory.dmp
    Filesize

    2.5MB