Analysis

  • max time kernel
    593s
  • max time network
    600s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    30-01-2023 12:52

General

  • Target

    Inquiry.js

  • Size

    1.3MB

  • MD5

    443caa6bef67a2be0e4bcec86619683e

  • SHA1

    24801da9b7ee6f3bea3a877b4f2e1e5592d27a7c

  • SHA256

    772fd8b1137becb5b3697fb1e10ba79f31367c7402d06235f96fc214d0338327

  • SHA512

    eccc636da9661159c0e500e4eaa3cda94f1ceb220c766459e97ca759c289a0e70522f4cd12d60a4aa6d1ac98a2ef8594c0aff49976087397711cf3b1edbfe6d6

  • SSDEEP

    24576:dwgFD4BiYRWfbd/RgU+FnkCt3fANRbonYMk37CMYY3lPg:dwgFD2ic6hRgU+1RuPoeYYK

Malware Config

Signatures

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • Blocklisted process makes network request 61 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops startup file 2 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • 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.

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe C:\Users\Admin\AppData\Local\Temp\Inquiry.js
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1972
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\ygXhKsdexe.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      PID:1864
    • C:\Users\Admin\AppData\Local\Temp\Payload (3).exe
      "C:\Users\Admin\AppData\Local\Temp\Payload (3).exe"
      2⤵
      • Executes dropped EXE
      • Accesses Microsoft Outlook profiles
      • Checks processor information in registry
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1712
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1712 -s 1916
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:1168

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

System Information Discovery

2
T1082

Query Registry

1
T1012

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Payload (3).exe
    Filesize

    755KB

    MD5

    3e8af9fffb1b980b193508f6a8a8cdc3

    SHA1

    e91e6f525952ae5a812d3cd3a795c6aeca94e527

    SHA256

    ba055f5ffcf5c345e37307673717f11319326e5c4b621f336b76c4826b09f7cc

    SHA512

    072bac20632cc30aa99715e4d5f508eab6a5b143704a0cdbbf0f5f22f86f4c02204efb1eb4acf8eeca97622c074bed2aa333119e842040e34ab55bff219a1f11

  • C:\Users\Admin\AppData\Local\Temp\Payload (3).exe
    Filesize

    755KB

    MD5

    3e8af9fffb1b980b193508f6a8a8cdc3

    SHA1

    e91e6f525952ae5a812d3cd3a795c6aeca94e527

    SHA256

    ba055f5ffcf5c345e37307673717f11319326e5c4b621f336b76c4826b09f7cc

    SHA512

    072bac20632cc30aa99715e4d5f508eab6a5b143704a0cdbbf0f5f22f86f4c02204efb1eb4acf8eeca97622c074bed2aa333119e842040e34ab55bff219a1f11

  • C:\Users\Admin\AppData\Roaming\ygXhKsdexe.js
    Filesize

    6KB

    MD5

    f5900623d262e28b5b5169d4307406df

    SHA1

    1eba3a193e440e9373133f69cff2f9cff6373189

    SHA256

    9530c305096a7bc5443c50079a77e7aee12d6dea1770f279ccf8f6e5f149f334

    SHA512

    d0ed8912d5ff927bfa0f05616f4712dbf6a60349839d4722691c02eb7cb0ebf2d1f1cbbe8becd1a77b5c71821b623323811d9255d1f8b9060cb928f31a996f97

  • \Users\Admin\AppData\Local\Temp\Payload (3).exe
    Filesize

    755KB

    MD5

    3e8af9fffb1b980b193508f6a8a8cdc3

    SHA1

    e91e6f525952ae5a812d3cd3a795c6aeca94e527

    SHA256

    ba055f5ffcf5c345e37307673717f11319326e5c4b621f336b76c4826b09f7cc

    SHA512

    072bac20632cc30aa99715e4d5f508eab6a5b143704a0cdbbf0f5f22f86f4c02204efb1eb4acf8eeca97622c074bed2aa333119e842040e34ab55bff219a1f11

  • \Users\Admin\AppData\Local\Temp\Payload (3).exe
    Filesize

    755KB

    MD5

    3e8af9fffb1b980b193508f6a8a8cdc3

    SHA1

    e91e6f525952ae5a812d3cd3a795c6aeca94e527

    SHA256

    ba055f5ffcf5c345e37307673717f11319326e5c4b621f336b76c4826b09f7cc

    SHA512

    072bac20632cc30aa99715e4d5f508eab6a5b143704a0cdbbf0f5f22f86f4c02204efb1eb4acf8eeca97622c074bed2aa333119e842040e34ab55bff219a1f11

  • \Users\Admin\AppData\Local\Temp\Payload (3).exe
    Filesize

    755KB

    MD5

    3e8af9fffb1b980b193508f6a8a8cdc3

    SHA1

    e91e6f525952ae5a812d3cd3a795c6aeca94e527

    SHA256

    ba055f5ffcf5c345e37307673717f11319326e5c4b621f336b76c4826b09f7cc

    SHA512

    072bac20632cc30aa99715e4d5f508eab6a5b143704a0cdbbf0f5f22f86f4c02204efb1eb4acf8eeca97622c074bed2aa333119e842040e34ab55bff219a1f11

  • \Users\Admin\AppData\Local\Temp\Payload (3).exe
    Filesize

    755KB

    MD5

    3e8af9fffb1b980b193508f6a8a8cdc3

    SHA1

    e91e6f525952ae5a812d3cd3a795c6aeca94e527

    SHA256

    ba055f5ffcf5c345e37307673717f11319326e5c4b621f336b76c4826b09f7cc

    SHA512

    072bac20632cc30aa99715e4d5f508eab6a5b143704a0cdbbf0f5f22f86f4c02204efb1eb4acf8eeca97622c074bed2aa333119e842040e34ab55bff219a1f11

  • \Users\Admin\AppData\Local\Temp\Payload (3).exe
    Filesize

    755KB

    MD5

    3e8af9fffb1b980b193508f6a8a8cdc3

    SHA1

    e91e6f525952ae5a812d3cd3a795c6aeca94e527

    SHA256

    ba055f5ffcf5c345e37307673717f11319326e5c4b621f336b76c4826b09f7cc

    SHA512

    072bac20632cc30aa99715e4d5f508eab6a5b143704a0cdbbf0f5f22f86f4c02204efb1eb4acf8eeca97622c074bed2aa333119e842040e34ab55bff219a1f11

  • memory/1168-65-0x0000000000000000-mapping.dmp
  • memory/1712-61-0x0000000000D50000-0x0000000000E14000-memory.dmp
    Filesize

    784KB

  • memory/1712-62-0x0000000075D71000-0x0000000075D73000-memory.dmp
    Filesize

    8KB

  • memory/1712-63-0x00000000008A0000-0x00000000008AE000-memory.dmp
    Filesize

    56KB

  • memory/1712-64-0x0000000008940000-0x00000000089F2000-memory.dmp
    Filesize

    712KB

  • memory/1712-57-0x0000000000000000-mapping.dmp
  • memory/1864-55-0x0000000000000000-mapping.dmp
  • memory/1972-54-0x000007FEFBEE1000-0x000007FEFBEE3000-memory.dmp
    Filesize

    8KB