Overview

overview

10

Static

static

loader.exe

windows7_x64

10

loader.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    39s
  • max time network
    43s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    26-06-2022 15:41

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General

  • Target

    loader.exe

  • Size

    15.8MB

  • MD5

    75941eabd47ddaa0529e6bf66068eccd

  • SHA1

    34d7b2683a149871591d3629b4da456064331ebd

  • SHA256

    5956fe13a88b4ee1006ba35a0c2bb1797c9d925c453c368aac628870ca8ee4ba

  • SHA512

    6d64ee77f9f08b3843031825e110a787efe81dddc72355e636659d53cdf697d663ff9c655cd89d41b5afeab88b8a3f7e4a2b049d77eb705e3c6b7ac817ea0c03

Score
10/10
44caliberspywarestealer

Malware Config

Extracted

Family

44caliber

C2

https://discordapp.com/api/webhooks/973580174689964083/2sajMUbGeKbojdqVMbPo-qtidMXn5a7QaYSzjXpRpUgg81vxQoCnZ2D4zH6jyVu9DL96

Signatures

  • 44Caliber

    An open source infostealer written in C#.

    stealer44caliber
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
    spyware
  • Looks up external IP address via web service 2 IoCs

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

  • 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.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\loader.exe
    "C:\Users\Admin\AppData\Local\Temp\loader.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1472
    • C:\Users\Admin\AppData\Local\Temp\faldiko.exe
      "C:\Users\Admin\AppData\Local\Temp\faldiko.exe"
      2⤵
      • Executes dropped EXE
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1956

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\faldiko.exe
    Filesize

    274KB

    MD5

    e8205566909635b44539a35b6361b0ae

    SHA1

    cbfefc9331926a8cf4dc6168b55ad61f02a1a708

    SHA256

    2a2f5c0dee61322166fc4015530ff20b46789af3fd82c4c7f2b678b2e63ec04c

    SHA512

    4c9328d55044e474e8422694f6e4b82a7ead3e5e1f4407423cf69a43d1cf1978463a8924a144a20827807d76bf2f0a44eeef8de93b8a0b4f421087e034923263

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\faldiko.exe
    Filesize

    274KB

    MD5

    e8205566909635b44539a35b6361b0ae

    SHA1

    cbfefc9331926a8cf4dc6168b55ad61f02a1a708

    SHA256

    2a2f5c0dee61322166fc4015530ff20b46789af3fd82c4c7f2b678b2e63ec04c

    SHA512

    4c9328d55044e474e8422694f6e4b82a7ead3e5e1f4407423cf69a43d1cf1978463a8924a144a20827807d76bf2f0a44eeef8de93b8a0b4f421087e034923263

    Download Submit

  • \Users\Admin\AppData\Local\Temp\faldiko.exe
    Filesize

    274KB

    MD5

    e8205566909635b44539a35b6361b0ae

    SHA1

    cbfefc9331926a8cf4dc6168b55ad61f02a1a708

    SHA256

    2a2f5c0dee61322166fc4015530ff20b46789af3fd82c4c7f2b678b2e63ec04c

    SHA512

    4c9328d55044e474e8422694f6e4b82a7ead3e5e1f4407423cf69a43d1cf1978463a8924a144a20827807d76bf2f0a44eeef8de93b8a0b4f421087e034923263

    Download Submit

  • memory/1472-54-0x0000000000400000-0x00000000013C8000-memory.dmp

    Filesize

    15.8MB

    Download

  • memory/1472-55-0x0000000074F21000-0x0000000074F23000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1956-57-0x0000000000000000-mapping.dmp

    Download

  • memory/1956-60-0x0000000000DF0000-0x0000000000E3A000-memory.dmp

    Filesize

    296KB

    Download