Analysis

  • max time kernel
    147s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    06-11-2020 10:40

General

  • Target

    3ed035d022c0bb23c38edc3914b73fe3f08088eb622de796f90f17a43f9a8c6e.exe

  • Size

    639KB

  • MD5

    400c27fd646c503f308306062d412174

  • SHA1

    46771f4789958b8aec780b2e31eeb7e5040e835a

  • SHA256

    3ed035d022c0bb23c38edc3914b73fe3f08088eb622de796f90f17a43f9a8c6e

  • SHA512

    f471aeeee3c9ce03ee685df63e7bd11b390495b51a68042361337e0b2dec53a8558b3bc13c0933374bfe72e379d0695003f502e82d689427a70a24b9ab254c1e

Malware Config

Signatures

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses 2FA software files, 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.

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3ed035d022c0bb23c38edc3914b73fe3f08088eb622de796f90f17a43f9a8c6e.exe
    "C:\Users\Admin\AppData\Local\Temp\3ed035d022c0bb23c38edc3914b73fe3f08088eb622de796f90f17a43f9a8c6e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1400
    • C:\Users\Admin\AppData\Local\Temp\3ed035d022c0bb23c38edc3914b73fe3f08088eb622de796f90f17a43f9a8c6e.exe
      "C:\Users\Admin\AppData\Local\Temp\3ed035d022c0bb23c38edc3914b73fe3f08088eb622de796f90f17a43f9a8c6e.exe"
      2⤵
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1172
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c taskkill /im 3ed035d022c0bb23c38edc3914b73fe3f08088eb622de796f90f17a43f9a8c6e.exe /f & erase C:\Users\Admin\AppData\Local\Temp\3ed035d022c0bb23c38edc3914b73fe3f08088eb622de796f90f17a43f9a8c6e.exe & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2064
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /im 3ed035d022c0bb23c38edc3914b73fe3f08088eb622de796f90f17a43f9a8c6e.exe /f
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:3916

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

  • memory/1172-6-0x000000000045C07D-mapping.dmp
  • memory/1172-5-0x0000000000400000-0x000000000048E000-memory.dmp
    Filesize

    568KB

  • memory/1172-7-0x0000000000400000-0x000000000048E000-memory.dmp
    Filesize

    568KB

  • memory/1400-0-0x0000000073550000-0x0000000073C3E000-memory.dmp
    Filesize

    6.9MB

  • memory/1400-1-0x0000000000B30000-0x0000000000B31000-memory.dmp
    Filesize

    4KB

  • memory/1400-3-0x0000000005610000-0x0000000005694000-memory.dmp
    Filesize

    528KB

  • memory/1400-4-0x0000000001520000-0x0000000001536000-memory.dmp
    Filesize

    88KB

  • memory/2064-8-0x0000000000000000-mapping.dmp
  • memory/3916-9-0x0000000000000000-mapping.dmp