Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 08:01

General

  • Target

    2a104160104581f7a5d5ace6cfbfc507.exe

  • Size

    292KB

  • MD5

    2a104160104581f7a5d5ace6cfbfc507

  • SHA1

    9cd8c773238b3ebde1010048df121003f225f7cd

  • SHA256

    ca325db87d417d1b142fc76c5f8e6c093dab172458e89c456b7f4bb374c02d82

  • SHA512

    49fe4cc256b48ffbbca1c432683b8a224ec91e9280205f1d5136ae8a4ec64f9bf51d6e98be10f4b37c46bbce780648036b2b946ac201e4dc450ebf0ebc7ad5dd

  • SSDEEP

    6144:JIgiXvIFG8QZYl/JxcUoSSwu5To9jqnbKUn3fORcRhb8UihHl:JPFRHcUoSSwu5To9jvUnPORcRhb2

Malware Config

Signatures

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • 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.

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • 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.

  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2a104160104581f7a5d5ace6cfbfc507.exe
    "C:\Users\Admin\AppData\Local\Temp\2a104160104581f7a5d5ace6cfbfc507.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1536
    • C:\ProgramData\71547527029184096622.exe
      "C:\ProgramData\71547527029184096622.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1420
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c ping google.com
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1732
        • C:\Windows\system32\PING.EXE
          ping google.com
          4⤵
          • Runs ping.exe
          PID:612
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\2a104160104581f7a5d5ace6cfbfc507.exe" & exit
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1848
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 6
        3⤵
        • Delays execution with timeout.exe
        PID:988

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

Network Service Scanning

1
T1046

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\71547527029184096622.exe
    Filesize

    5.0MB

    MD5

    9b9b51dcae09898674e4b51e0007863a

    SHA1

    5cdca420734022184078e440fc5ad344109869de

    SHA256

    3be62b0af8ce4a133f843b85f8cf9cce18649c397296feb0efb6445920d1bd9e

    SHA512

    3b6b521f3bf30e7a928a76442fa4de5cceb885863b45ddf17355b741e170d53c82c5c271c968b4b6e0b795e2bad8603b7a2022efd65a82b90d96bf0723f66eea

  • C:\ProgramData\71547527029184096622.exe
    Filesize

    5.0MB

    MD5

    9b9b51dcae09898674e4b51e0007863a

    SHA1

    5cdca420734022184078e440fc5ad344109869de

    SHA256

    3be62b0af8ce4a133f843b85f8cf9cce18649c397296feb0efb6445920d1bd9e

    SHA512

    3b6b521f3bf30e7a928a76442fa4de5cceb885863b45ddf17355b741e170d53c82c5c271c968b4b6e0b795e2bad8603b7a2022efd65a82b90d96bf0723f66eea

  • \ProgramData\71547527029184096622.exe
    Filesize

    5.0MB

    MD5

    9b9b51dcae09898674e4b51e0007863a

    SHA1

    5cdca420734022184078e440fc5ad344109869de

    SHA256

    3be62b0af8ce4a133f843b85f8cf9cce18649c397296feb0efb6445920d1bd9e

    SHA512

    3b6b521f3bf30e7a928a76442fa4de5cceb885863b45ddf17355b741e170d53c82c5c271c968b4b6e0b795e2bad8603b7a2022efd65a82b90d96bf0723f66eea

  • \ProgramData\mozglue.dll
    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll
    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/612-82-0x0000000000000000-mapping.dmp
  • memory/988-84-0x0000000000000000-mapping.dmp
  • memory/1420-76-0x0000000000000000-mapping.dmp
  • memory/1420-79-0x000000013F0A0000-0x000000013F5A8000-memory.dmp
    Filesize

    5.0MB

  • memory/1420-80-0x000007FEFBB71000-0x000007FEFBB73000-memory.dmp
    Filesize

    8KB

  • memory/1536-54-0x0000000075681000-0x0000000075683000-memory.dmp
    Filesize

    8KB

  • memory/1536-55-0x000000006EFF0000-0x000000006F0E3000-memory.dmp
    Filesize

    972KB

  • memory/1732-81-0x0000000000000000-mapping.dmp
  • memory/1848-83-0x0000000000000000-mapping.dmp