Analysis

  • max time kernel
    120s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    08-11-2020 14:16

General

  • Target

    File.exe

  • Size

    1.8MB

  • MD5

    42d51e625544236266f22b3eebfb2916

  • SHA1

    c629b576834ada632f4cb7f1f9a42dcaed775468

  • SHA256

    10d9bfb8ffd8604bd88edfa7ec3f70f24f551ad6720016320377afcad9a6f735

  • SHA512

    8a340465dcc7cead86908c6286f6eb03ebc0f340c8e9574eb1241dd810c1242b3957260e934fa994bf003c07e0fe7978ea6ec493c076fbccfb4772dc0a37279f

Malware Config

Signatures

  • Echelon

    Echelon is a .NET stealer that targets passwords from browsers, email and cryptocurrency clients.

  • Echelon log file 1 IoCs

    Detects a log file produced by Echelon.

  • Reads user/profile data of web browsers 2 TTPs

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

  • 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 4 IoCs

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

  • Program crash 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\File.exe
    "C:\Users\Admin\AppData\Local\Temp\File.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:932
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 932 -s 892
      2⤵
      • Program crash
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:288

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/288-6-0x0000000000000000-mapping.dmp
  • memory/288-7-0x0000000001D80000-0x0000000001D91000-memory.dmp
    Filesize

    68KB

  • memory/288-10-0x0000000002BB0000-0x0000000002BC1000-memory.dmp
    Filesize

    68KB

  • memory/932-0-0x000007FEF5A10000-0x000007FEF63FC000-memory.dmp
    Filesize

    9.9MB

  • memory/932-1-0x00000000009E0000-0x00000000009E1000-memory.dmp
    Filesize

    4KB

  • memory/932-3-0x00000000003D0000-0x00000000003D1000-memory.dmp
    Filesize

    4KB

  • memory/932-4-0x000000001B5E0000-0x000000001B8A0000-memory.dmp
    Filesize

    2.8MB

  • memory/932-5-0x00000000003F0000-0x00000000003F1000-memory.dmp
    Filesize

    4KB