Analysis

  • max time kernel
    54s
  • max time network
    60s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-06-2022 02:57

General

  • Target

    ce29b09c57bdd0df33b7d45abe0047952fc009dbc1b5b43351aa6dad751ba262.exe

  • Size

    4.9MB

  • MD5

    f12c1548b18709716fccbffd277402a0

  • SHA1

    1f5f31e07055980eb7cc131590a9441b61c60044

  • SHA256

    ce29b09c57bdd0df33b7d45abe0047952fc009dbc1b5b43351aa6dad751ba262

  • SHA512

    6e35f550e6719d3db337e00a2108a0b477bfc556b262ca291617b5783e9d26bf706f04f8fb2d902810317b4991fc26a7c221d7997ec2bc3a96673a4d8af8b9dc

Malware Config

Extracted

Family

recordbreaker

C2

http://185.106.94.148/

Signatures

  • Raccoon ver2 7 IoCs

    Raccoon ver2.

  • RecordBreaker

    RecordBreaker is an information stealer capable of downloading and executing secondary payloads written in C++.

  • suricata: ET MALWARE Generic Stealer Config Download Request

    suricata: ET MALWARE Generic Stealer Config Download Request

  • suricata: ET MALWARE Recordbreaker Stealer CnC Checkin

    suricata: ET MALWARE Recordbreaker Stealer CnC Checkin

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Downloads MZ/PE file
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Themida packer 7 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ce29b09c57bdd0df33b7d45abe0047952fc009dbc1b5b43351aa6dad751ba262.exe
    "C:\Users\Admin\AppData\Local\Temp\ce29b09c57bdd0df33b7d45abe0047952fc009dbc1b5b43351aa6dad751ba262.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    PID:1944

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

2
T1082

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\LocalLow\mozglue.dll
    Filesize

    612KB

    MD5

    f07d9977430e762b563eaadc2b94bbfa

    SHA1

    da0a05b2b8d269fb73558dfcf0ed5c167f6d3877

    SHA256

    4191faf7e5eb105a0f4c5c6ed3e9e9c71014e8aa39bbee313bc92d1411e9e862

    SHA512

    6afd512e4099643bba3fc7700dd72744156b78b7bda10263ba1f8571d1e282133a433215a9222a7799f9824f244a2bc80c2816a62de1497017a4b26d562b7eaf

  • \Users\Admin\AppData\LocalLow\nss3.dll
    Filesize

    1.9MB

    MD5

    f67d08e8c02574cbc2f1122c53bfb976

    SHA1

    6522992957e7e4d074947cad63189f308a80fcf2

    SHA256

    c65b7afb05ee2b2687e6280594019068c3d3829182dfe8604ce4adf2116cc46e

    SHA512

    2e9d0a211d2b085514f181852fae6e7ca6aed4d29f396348bedb59c556e39621810a9a74671566a49e126ec73a60d0f781fa9085eb407df1eefd942c18853be5

  • \Users\Admin\AppData\LocalLow\sqlite3.dll
    Filesize

    1.0MB

    MD5

    dbf4f8dcefb8056dc6bae4b67ff810ce

    SHA1

    bbac1dd8a07c6069415c04b62747d794736d0689

    SHA256

    47b64311719000fa8c432165a0fdcdfed735d5b54977b052de915b1cbbbf9d68

    SHA512

    b572ca2f2e4a5cc93e4fcc7a18c0ae6df888aa4c55bc7da591e316927a4b5cfcbdda6e60018950be891ff3b26f470cc5cce34d217c2d35074322ab84c32a25d1

  • memory/1944-60-0x0000000000C40000-0x000000000164F000-memory.dmp
    Filesize

    10.1MB

  • memory/1944-61-0x0000000000C40000-0x000000000164F000-memory.dmp
    Filesize

    10.1MB

  • memory/1944-62-0x0000000077530000-0x00000000776B0000-memory.dmp
    Filesize

    1.5MB

  • memory/1944-63-0x0000000000C40000-0x000000000164F000-memory.dmp
    Filesize

    10.1MB

  • memory/1944-64-0x0000000000C40000-0x000000000164F000-memory.dmp
    Filesize

    10.1MB

  • memory/1944-54-0x0000000000C40000-0x000000000164F000-memory.dmp
    Filesize

    10.1MB

  • memory/1944-59-0x0000000000C40000-0x000000000164F000-memory.dmp
    Filesize

    10.1MB

  • memory/1944-58-0x0000000076191000-0x0000000076193000-memory.dmp
    Filesize

    8KB

  • memory/1944-68-0x0000000077530000-0x00000000776B0000-memory.dmp
    Filesize

    1.5MB

  • memory/1944-69-0x0000000000C40000-0x000000000164F000-memory.dmp
    Filesize

    10.1MB

  • memory/1944-70-0x0000000077530000-0x00000000776B0000-memory.dmp
    Filesize

    1.5MB