Analysis

  • max time kernel
    101s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    09-05-2021 10:26

General

  • Target

    321.exe

  • Size

    89KB

  • MD5

    24f89b42a9614bfbdb4c2bf97c0b0257

  • SHA1

    72081b8dafea8abf3cd042d424e9bd751e9e1121

  • SHA256

    0d2137d133179a2fbff7bf38a8125d4b74e9615aaa47b5f4a3056eccce7a8f6e

  • SHA512

    00efae478f575d9c55a225f43002fc28a9c9a4ad6785873f1cfdfe03a84d34a8adc65fb8e41a5c852b7faaf02ec8eb8a7f4d92663aa59d5b9a6a073f1e23817e

Malware Config

Signatures

  • InfinityLock Ransomware

    Also known as InfinityCrypt. Based on the open-source HiddenTear ransomware.

  • Drops file in Program Files directory 64 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\321.exe
    "C:\Users\Admin\AppData\Local\Temp\321.exe"
    1⤵
    • Drops file in Program Files directory
    • Checks processor information in registry
    • Suspicious use of AdjustPrivilegeToken
    PID:1684

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1684-60-0x00000000012D0000-0x00000000012D1000-memory.dmp

    Filesize

    4KB

  • memory/1684-62-0x0000000004ED0000-0x0000000004ED1000-memory.dmp

    Filesize

    4KB

  • memory/1684-63-0x0000000000490000-0x00000000004BA000-memory.dmp

    Filesize

    168KB

  • memory/1684-64-0x0000000004ED5000-0x0000000004EE6000-memory.dmp

    Filesize

    68KB