Analysis

  • max time kernel
    68s
  • max time network
    76s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    26-09-2021 11:49

General

  • Target

    mixsix_20210923-211536.exe

  • Size

    417KB

  • MD5

    a937ce43a1cbe405544f255153f9bda6

  • SHA1

    14358ce9df442d6eed62ca39b448fedea0e7f47a

  • SHA256

    dacaa38c51cbe462d5a0a5a45b78806243e3e73019749327cad03ec95ecc03b9

  • SHA512

    c9f8ba72fa6b93e1daa3c3d052ef99aa9e10973620b73e5b37242c1017e50ef24488e58d7c6359ca84a9f794faa6b7bb4a73a345aaa5820795c0477161c4d3bf

Malware Config

Extracted

Family

fickerstealer

C2

game2030.site:80

Signatures

  • Fickerstealer

    Ficker is an infostealer written in Rust and ASM.

  • suricata: ET MALWARE Win32/Ficker Stealer Activity M3

    suricata: ET MALWARE Win32/Ficker Stealer Activity M3

  • Executes dropped EXE 2 IoCs
  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of web browsers 2 TTPs

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

  • 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.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\mixsix_20210923-211536.exe
    "C:\Users\Admin\AppData\Local\Temp\mixsix_20210923-211536.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:636
    • C:\Users\Admin\AppData\Local\Temp\mixsix_20210923-211536.exe
      "C:\Users\Admin\AppData\Local\Temp\mixsix_20210923-211536.exe"
      2⤵
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:816
      • C:\Users\Admin\AppData\Local\Temp\1632664281986.exe
        "C:\Users\Admin\AppData\Local\Temp\1632664281986.exe"
        3⤵
        • Executes dropped EXE
        PID:756
      • C:\Users\Admin\AppData\Local\Temp\1632664282299.exe
        "C:\Users\Admin\AppData\Local\Temp\1632664282299.exe"
        3⤵
        • Executes dropped EXE
        PID:3176

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\1632664281986.exe
    MD5

    5c2239fc23f6fbf9255c028fd5a31c2d

    SHA1

    838606011ef69960fe2a0092c8eaf8ce34ee908d

    SHA256

    49913ed81ebc44a229799d68f33dcb018f56bec67bbf552166c52d0ddaa9a386

    SHA512

    bf8c583254d1223fdd747cd51b9bbe26bbc2c39ed49c467f985944ba7530a6a0a4fe4d66f168c0f2ec3a45fd6a87f6fba70238345261a1baeae6b6981efa5de6

  • C:\Users\Admin\AppData\Local\Temp\1632664281986.exe
    MD5

    5c2239fc23f6fbf9255c028fd5a31c2d

    SHA1

    838606011ef69960fe2a0092c8eaf8ce34ee908d

    SHA256

    49913ed81ebc44a229799d68f33dcb018f56bec67bbf552166c52d0ddaa9a386

    SHA512

    bf8c583254d1223fdd747cd51b9bbe26bbc2c39ed49c467f985944ba7530a6a0a4fe4d66f168c0f2ec3a45fd6a87f6fba70238345261a1baeae6b6981efa5de6

  • C:\Users\Admin\AppData\Local\Temp\1632664282299.exe
    MD5

    f51ba78075a26eb83caca0d95bbe22c6

    SHA1

    02a40c1e3bf49040f959f1ee3e6f532453740fb8

    SHA256

    8dc5ad841d1d047a8bd3b57727da647dd8e1548a3be6178f341438b97c0f28b9

    SHA512

    c757126cb32ca7a8321668562b28c50b9428e3ea215ba0c4e3e04fa79c3c18689534245b5d151bedb082166bcb574cb5698185a48cc5f9be7bce227d4a6c37cf

  • C:\Users\Admin\AppData\Local\Temp\1632664282299.exe
    MD5

    f51ba78075a26eb83caca0d95bbe22c6

    SHA1

    02a40c1e3bf49040f959f1ee3e6f532453740fb8

    SHA256

    8dc5ad841d1d047a8bd3b57727da647dd8e1548a3be6178f341438b97c0f28b9

    SHA512

    c757126cb32ca7a8321668562b28c50b9428e3ea215ba0c4e3e04fa79c3c18689534245b5d151bedb082166bcb574cb5698185a48cc5f9be7bce227d4a6c37cf

  • memory/636-114-0x0000000002220000-0x0000000002267000-memory.dmp
    Filesize

    284KB

  • memory/756-118-0x0000000000000000-mapping.dmp
  • memory/816-115-0x0000000000400000-0x000000000044F000-memory.dmp
    Filesize

    316KB

  • memory/816-116-0x0000000000401480-mapping.dmp
  • memory/816-117-0x0000000000400000-0x000000000044F000-memory.dmp
    Filesize

    316KB

  • memory/3176-121-0x0000000000000000-mapping.dmp