Analysis

  • max time kernel
    100s
  • max time network
    104s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    26-09-2021 11:50

General

  • Target

    mixsix_20210924-083109.exe

  • Size

    523KB

  • MD5

    9b0e18017ea35c11d4e477028d8b862a

  • SHA1

    3ae7f49984dc702af623d39af51a071fba37fd6b

  • SHA256

    023e18099649da79f4edf0067b155f78effb978f2d4d9d9ff8d5cebcdd656cc1

  • SHA512

    f94efa893f4cb55883a7a9fdb163fefaee5bf7fa8adcccd13ae6da4746564b73b5abc4994a089f0f3d14b0f44475ead7159b0dd42cbb69065429f1500e496763

Malware Config

Extracted

Family

fickerstealer

C2

game2030.site:80

Signatures

  • Fickerstealer

    Ficker is an infostealer written in Rust and ASM.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 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 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\mixsix_20210924-083109.exe
    "C:\Users\Admin\AppData\Local\Temp\mixsix_20210924-083109.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1120
    • C:\Users\Admin\AppData\Local\Temp\mixsix_20210924-083109.exe
      "C:\Users\Admin\AppData\Local\Temp\mixsix_20210924-083109.exe"
      2⤵
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1056
      • C:\Users\Admin\AppData\Local\Temp\1632657137050.exe
        "C:\Users\Admin\AppData\Local\Temp\1632657137050.exe"
        3⤵
        • Executes dropped EXE
        PID:1152
      • C:\Users\Admin\AppData\Local\Temp\1632657137081.exe
        "C:\Users\Admin\AppData\Local\Temp\1632657137081.exe"
        3⤵
        • Executes dropped EXE
        PID:1408

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\1632657137050.exe
    MD5

    5c2239fc23f6fbf9255c028fd5a31c2d

    SHA1

    838606011ef69960fe2a0092c8eaf8ce34ee908d

    SHA256

    49913ed81ebc44a229799d68f33dcb018f56bec67bbf552166c52d0ddaa9a386

    SHA512

    bf8c583254d1223fdd747cd51b9bbe26bbc2c39ed49c467f985944ba7530a6a0a4fe4d66f168c0f2ec3a45fd6a87f6fba70238345261a1baeae6b6981efa5de6

  • C:\Users\Admin\AppData\Local\Temp\1632657137081.exe
    MD5

    f51ba78075a26eb83caca0d95bbe22c6

    SHA1

    02a40c1e3bf49040f959f1ee3e6f532453740fb8

    SHA256

    8dc5ad841d1d047a8bd3b57727da647dd8e1548a3be6178f341438b97c0f28b9

    SHA512

    c757126cb32ca7a8321668562b28c50b9428e3ea215ba0c4e3e04fa79c3c18689534245b5d151bedb082166bcb574cb5698185a48cc5f9be7bce227d4a6c37cf

  • \Users\Admin\AppData\Local\Temp\1632657137050.exe
    MD5

    5c2239fc23f6fbf9255c028fd5a31c2d

    SHA1

    838606011ef69960fe2a0092c8eaf8ce34ee908d

    SHA256

    49913ed81ebc44a229799d68f33dcb018f56bec67bbf552166c52d0ddaa9a386

    SHA512

    bf8c583254d1223fdd747cd51b9bbe26bbc2c39ed49c467f985944ba7530a6a0a4fe4d66f168c0f2ec3a45fd6a87f6fba70238345261a1baeae6b6981efa5de6

  • \Users\Admin\AppData\Local\Temp\1632657137081.exe
    MD5

    f51ba78075a26eb83caca0d95bbe22c6

    SHA1

    02a40c1e3bf49040f959f1ee3e6f532453740fb8

    SHA256

    8dc5ad841d1d047a8bd3b57727da647dd8e1548a3be6178f341438b97c0f28b9

    SHA512

    c757126cb32ca7a8321668562b28c50b9428e3ea215ba0c4e3e04fa79c3c18689534245b5d151bedb082166bcb574cb5698185a48cc5f9be7bce227d4a6c37cf

  • memory/1056-55-0x0000000000401480-mapping.dmp
  • memory/1056-54-0x0000000000400000-0x000000000044F000-memory.dmp
    Filesize

    316KB

  • memory/1056-56-0x0000000000400000-0x000000000044F000-memory.dmp
    Filesize

    316KB

  • memory/1056-57-0x0000000076201000-0x0000000076203000-memory.dmp
    Filesize

    8KB

  • memory/1120-53-0x0000000000220000-0x0000000000267000-memory.dmp
    Filesize

    284KB

  • memory/1152-59-0x0000000000000000-mapping.dmp
  • memory/1408-62-0x0000000000000000-mapping.dmp