Resubmissions

14-10-2021 15:13

211014-slznesafgr 10

13-10-2021 11:15

211013-ncl9hsdggp 10

Analysis

  • max time kernel
    123s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    13-10-2021 11:15

General

  • Target

    a9dea10c6d4d205faab1ac8db69384e9c3dc91fd5a718266957e4e164f76cd4a.bin.exe

  • Size

    311KB

  • MD5

    0050729426253655c88625a8ad93d7a2

  • SHA1

    a8ea376bc26eba3ff32e72cb2bf43cccfa1c87d7

  • SHA256

    a9dea10c6d4d205faab1ac8db69384e9c3dc91fd5a718266957e4e164f76cd4a

  • SHA512

    1947c78aba1933c3da2eed125d760bf7c4b3bf75a113139a22db0d2f1e1e3e8b4640c0330b5220712275884567daf9548467a96747fb550fc8cb24dfc989d37c

Score
10/10

Malware Config

Signatures

  • Arkei

    Arkei is an infostealer written in C++.

  • Arkei Stealer Payload 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a9dea10c6d4d205faab1ac8db69384e9c3dc91fd5a718266957e4e164f76cd4a.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\a9dea10c6d4d205faab1ac8db69384e9c3dc91fd5a718266957e4e164f76cd4a.bin.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1268
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1268 -s 668
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:632

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/632-57-0x0000000000000000-mapping.dmp
  • memory/632-58-0x0000000000430000-0x0000000000431000-memory.dmp
    Filesize

    4KB

  • memory/1268-53-0x000000000187B000-0x000000000188C000-memory.dmp
    Filesize

    68KB

  • memory/1268-54-0x00000000755A1000-0x00000000755A3000-memory.dmp
    Filesize

    8KB

  • memory/1268-55-0x0000000000220000-0x0000000000239000-memory.dmp
    Filesize

    100KB

  • memory/1268-56-0x0000000000400000-0x00000000016C0000-memory.dmp
    Filesize

    18MB