Resubmissions

29-11-2022 14:17

221129-rlwq4aga85 10

29-11-2022 12:11

221129-pcwcvsge48 10

29-11-2022 11:21

221129-ngaraadf99 10

Analysis

  • max time kernel
    601s
  • max time network
    428s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2022 11:21

General

  • Target

    SD.exe

  • Size

    501KB

  • MD5

    6ea4b9b0ad0692892f6e4f1b4f05aa72

  • SHA1

    3bb50ceeaa8a698687863dd44e149214d4372601

  • SHA256

    757524b09e5d4f2399172c4ac0f6996ec34dec90110542973d438d5370aff280

  • SHA512

    f5d603cabcf98193eb569d012a1434963a995d508f0580008b6463454bdd1fe02610e3797d2b28ef5f551d6d281a9d5b12efdad9bd6cdb51a796e4c077821e48

  • SSDEEP

    6144:bouXuOPQveEDZSBdapQD0QYa5N2eAAHIbzAW1+SM/VyojODUSN:UiAmEQuQp7wbzd9JojMUSN

Malware Config

Signatures

  • PLAY Ransomware, PlayCrypt

    Ransomware family first seen in mid 2022.

  • Modifies extensions of user files 24 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops desktop.ini file(s) 39 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SD.exe
    "C:\Users\Admin\AppData\Local\Temp\SD.exe"
    1⤵
    • Modifies extensions of user files
    • Drops desktop.ini file(s)
    • Enumerates connected drives
    • Drops file in Program Files directory
    PID:1612

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\$Recycle.Bin\S-1-5-21-999675638-2867687379-27515722-1000\desktop.ini
    Filesize

    1KB

    MD5

    54b68093f0ed510f4c5c58f1928eb4df

    SHA1

    d8de818338cd39412bb71b53ddb8c1efaaa07121

    SHA256

    c79dc3b95d3adf81a7003f8377f4e740f9720ce0ea461f145ec2272f4c6aff05

    SHA512

    aaf85fdd443d0de8ee3368bdd91b5ecd8c9a5eb1a59d18db3cf44a991e3acd5c633577a33cf4edb184c7b5c7837eb61303a4dae77dc1d786d83c8e142bc4f979

  • memory/1612-54-0x0000000076681000-0x0000000076683000-memory.dmp
    Filesize

    8KB

  • memory/1612-55-0x0000000000270000-0x000000000029C000-memory.dmp
    Filesize

    176KB