Overview

overview

10

Static

static

7

HEUR-Troja...4c.exe

windows7-x64

10

HEUR-Troja...4c.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    114s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    21-09-2022 04:05

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General

  • Target

    HEUR-Trojan-Ransom.MSIL.Crypmodadv.gen-2b5c0eed6f0e364b39dba4263611b01e7c2399232fbf23a66ad17760d616314c.exe

  • Size

    284KB

  • MD5

    668983cf8223a398f4b8a1a4d7cddb7a

  • SHA1

    8fa5d4312dd5f1964a3bd34d2c09842ec02f135c

  • SHA256

    2b5c0eed6f0e364b39dba4263611b01e7c2399232fbf23a66ad17760d616314c

  • SHA512

    5e0e868a6640d1bf836142f14c3d29d658996e38e3e380c670132c0c85cbf8f9c6dfa0d58d9a04b2606ab1d0cf8d2c26449f869003c03207591d09e0061d9646

  • SSDEEP

    6144:ISoIcVpYGcAeYIiSOOrYJoLiWMWvGKab2btuMcjV:ILIaBoU4iFWvztuMcjV

Score
10/10
agilenetransomware

Malware Config

Extracted

Path

C:\Users\Public\Pictures\Sample Pictures\ARGUS-DECRYPT.html

Ransom Note
<html><head><style>body{background: #000041 no-repeat;font-family:Consolas;color: rgb(235, 235, 235);font-size:23px;}ul{margin-left: 400px;text-align: left;}p{display:none;}span{display:none;}</style></head><body><div align="center"><h3>.-=| ARGUS CRYPTOR V1.0 |=-. </h3><br>Attention!<br>All your files, documents, photos, databases and other important files are encrypted!<br>The only method of recovering files is to purchase an unique private key. Only WE can recover your files!<br>You can get the private key by email as well as through a closed TOR network. You can get there by the following ways<br><br><----------------------------------------------------------------------------------------><br><ul><li> Main email : argusdecrypt@cock.li </li><li> Reserved email : argusdecrypt@mailfence.com </li><li> Follow the instructions</li><h3> If the answer for a long time no</h3><li> Download Tor browser - https://www.torproject.org/download/download-easy</li><li> Install Tor browser </li><li> Open Tor Browser </li><li> Open link in TOR browser: http://argusqug6aw25gye.onion/ </li><li> Follow the instructions on this page</li></ul><----------------------------------------------------------------------------------------><br><br><br>You can get the opportunity to decrypt 1 file for free.<br><br><br>ATTENTION!<br>IN ORDER TO PREVENT DATA DAMAGE:<br><br>* DO NOT MODIFY ENCRYPTED FILES<br>* DO NOT DELETE ENCRYPTED FILES<br>* DO NOT RENAME ENCRYPTED FILES<br><br><p>---BEGIN PC DATA--- eyJrZXkiIDogImVJb3NGaFpIMFZWazMzSWExdUJIZlZMcEV1ZWxoQ0dJVDJJSXpzYW9LOXA0c01SaEtOdGxEMGFDc0JmaERLWU5HQi9adU1lTkQ4UDFRVnRFNEVPa05RPT0iLCAibXNnIiA6ICJKZnZ2Nk1kcjgwdnV3L3NWVkhlUm9rRlk2dlNXczZtb3c2NTg4UXdEUVpsQUVRMTdSRE9yN2w5dDNsNkR0VG9uMzB2MFZ1RkxsWjNsQjZ6cVp1aUJVQ0VyVkVobFRBdUxCbFEzeUhnVTM0RjEwUnBlWlNVWXdFdDdzWFR0dlJINjNNUGtRcmVQVXNPL2M2MzFUbWRCMU1LSUVXUVJUWElDb2ZOSWd1eXN3aUZ1blFOQ0o1N1U0cEZSRFNNN2g2eWgifQ== ---END PC DATA---</p></div></body></html>
Emails

argusdecrypt@cock.li

argusdecrypt@mailfence.com
URLs

http://argusqug6aw25gye.onion/

Signatures

  • Executes dropped EXE 2 IoCs
  • Modifies extensions of user files 2 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Loads dropped DLL 2 IoCs
  • Obfuscated with Agile.Net obfuscator 1 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    agilenet
  • Looks up external IP address via web service 1 IoCs

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

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies Control Panel 2 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 41 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan-Ransom.MSIL.Crypmodadv.gen-2b5c0eed6f0e364b39dba4263611b01e7c2399232fbf23a66ad17760d616314c.exe
    "C:\Users\Admin\AppData\Local\Temp\HEUR-Trojan-Ransom.MSIL.Crypmodadv.gen-2b5c0eed6f0e364b39dba4263611b01e7c2399232fbf23a66ad17760d616314c.exe"
    1⤵
    • Modifies extensions of user files
    • Loads dropped DLL
    • Sets desktop wallpaper using registry
    • Modifies Control Panel
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1560
    • C:\Windows\SysWOW64\Wbem\wmic.exe
      "wmic" os get Caption /format:list
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1200
    • C:\Users\Admin\audiodg.exe
      "C:\Users\Admin\audiodg.exe" /accepteula -z C:\
      2⤵
      • Executes dropped EXE
      PID:1796
    • C:\Users\Admin\audiodg.exe
      "C:\Users\Admin\audiodg.exe" /accepteula -z D:\
      2⤵
      • Executes dropped EXE
      PID:896

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

1
T1491

Replay Monitor

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Downloads

  • C:\Users\Admin\audiodg.exe
    Filesize

    62KB

    MD5

    4b79e9e535b418547d817bff790fe8a8

    SHA1

    61c7637f8eb41f51a9461f803b588005e7963812

    SHA256

    fbb00baf5be11971b7260abeed4dd6a6ea13f4cb52a8bb84a7a238f90d400bff

    SHA512

    267b7af904bb343e5ea49183a240faf51b4be228b5d56efd0757e8a8f3c85becc2e553099f712e5ac55e7d1212999ae6c6f6f24ffee86a5a3141a9f690734f41

    Download Submit
  • C:\Users\Admin\audiodg.exe
    Filesize

    62KB

    MD5

    4b79e9e535b418547d817bff790fe8a8

    SHA1

    61c7637f8eb41f51a9461f803b588005e7963812

    SHA256

    fbb00baf5be11971b7260abeed4dd6a6ea13f4cb52a8bb84a7a238f90d400bff

    SHA512

    267b7af904bb343e5ea49183a240faf51b4be228b5d56efd0757e8a8f3c85becc2e553099f712e5ac55e7d1212999ae6c6f6f24ffee86a5a3141a9f690734f41

    Download Submit
  • \Users\Admin\audiodg.exe
    Filesize

    62KB

    MD5

    4b79e9e535b418547d817bff790fe8a8

    SHA1

    61c7637f8eb41f51a9461f803b588005e7963812

    SHA256

    fbb00baf5be11971b7260abeed4dd6a6ea13f4cb52a8bb84a7a238f90d400bff

    SHA512

    267b7af904bb343e5ea49183a240faf51b4be228b5d56efd0757e8a8f3c85becc2e553099f712e5ac55e7d1212999ae6c6f6f24ffee86a5a3141a9f690734f41

    Download Submit
  • \Users\Admin\audiodg.exe
    Filesize

    62KB

    MD5

    4b79e9e535b418547d817bff790fe8a8

    SHA1

    61c7637f8eb41f51a9461f803b588005e7963812

    SHA256

    fbb00baf5be11971b7260abeed4dd6a6ea13f4cb52a8bb84a7a238f90d400bff

    SHA512

    267b7af904bb343e5ea49183a240faf51b4be228b5d56efd0757e8a8f3c85becc2e553099f712e5ac55e7d1212999ae6c6f6f24ffee86a5a3141a9f690734f41

    Download Submit
  • memory/896-68-0x0000000000400000-0x000000000042B000-memory.dmp
    Filesize

    172KB

    Download
  • memory/896-65-0x0000000000000000-mapping.dmp
    Download
  • memory/1200-58-0x0000000000000000-mapping.dmp
    Download
  • memory/1560-59-0x0000000000AD5000-0x0000000000AE6000-memory.dmp
    Filesize

    68KB

    Download
  • memory/1560-54-0x0000000000C20000-0x0000000000C6E000-memory.dmp
    Filesize

    312KB

    Download
  • memory/1560-57-0x0000000000AD5000-0x0000000000AE6000-memory.dmp
    Filesize

    68KB

    Download
  • memory/1560-56-0x00000000756B1000-0x00000000756B3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1560-55-0x0000000000430000-0x0000000000444000-memory.dmp
    Filesize

    80KB

    Download
  • memory/1560-69-0x0000000004A00000-0x0000000004A2B000-memory.dmp
    Filesize

    172KB

    Download
  • memory/1560-71-0x0000000004A00000-0x0000000004A2B000-memory.dmp
    Filesize

    172KB

    Download
  • memory/1560-73-0x0000000004930000-0x000000000495B000-memory.dmp
    Filesize

    172KB

    Download
  • memory/1560-74-0x0000000000AD5000-0x0000000000AE6000-memory.dmp
    Filesize

    68KB

    Download
  • memory/1796-61-0x0000000000000000-mapping.dmp
    Download
  • memory/1796-70-0x0000000000400000-0x000000000042B000-memory.dmp
    Filesize

    172KB

    Download
  • memory/1796-72-0x0000000000400000-0x000000000042B000-memory.dmp
    Filesize

    172KB

    Download