Analysis

  • max time kernel
    139s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    09-03-2022 07:48

General

  • Target

    9b741495d5578382a2d4e265a111711b85b846cc19282bebddf0a0fe867c4aa6.exe

  • Size

    241KB

  • MD5

    31f17552e184dcbb01589e3c125bfdfa

  • SHA1

    57446db90ffdff7f331bea2a79d4e5893c30ca04

  • SHA256

    9b741495d5578382a2d4e265a111711b85b846cc19282bebddf0a0fe867c4aa6

  • SHA512

    fa05f50ba692fc7474d9402c564b0f2dee550bfa519cb05167b3d4e256237274a84a9e3e5f417870d767c1b30a69641456c8fbf13e3d570dedc496b96b63bf0c

Malware Config

Extracted

Family

jester

Botnet

FikusCode

C2

http://jesterdcuxzbey4xvlwwheoecpltru5be2mzuk4w7a7nrhckdjjhrbyd.onion/report/FikusCode

https://api.anonfiles.com/upload?token=d26d620842507144

Mutex

46378331-3729-449c-9a03-94f385d10a9c

Attributes
  • license_key

    D1F0DE359CBD562CCF9326AEEEA8E64E

Signatures

  • Jester

    Jester is an information stealer malware written in C#.

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9b741495d5578382a2d4e265a111711b85b846cc19282bebddf0a0fe867c4aa6.exe
    "C:\Users\Admin\AppData\Local\Temp\9b741495d5578382a2d4e265a111711b85b846cc19282bebddf0a0fe867c4aa6.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1536

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1536-55-0x000007FEF4F50000-0x000007FEF593C000-memory.dmp

    Filesize

    9.9MB

  • memory/1536-56-0x0000000000F30000-0x0000000000F72000-memory.dmp

    Filesize

    264KB

  • memory/1536-57-0x000000001AD10000-0x000000001AD12000-memory.dmp

    Filesize

    8KB