Overview

overview

10

Static

static

1

Invoice Fl...py.vbs

windows7-x64

8

Invoice Fl...py.vbs

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    Invoice FlexFleetRental-INV48398ladyfish - Generated 2023-04-13 - Copy.vbs

  • Size

    1.6MB

  • Sample

    230428-tn54nafa99

  • MD5

    8a16c55a5d919aa4a8c298d6cf60da15

  • SHA1

    47fd79f1dc1efe1b7fb62c4cbe28a8f5259b5ba9

  • SHA256

    6aabf2b83a939a7cc4c10369e8f88fb28bca49356bf5472248df62fc82d6a63f

  • SHA512

    c90846daf3a0089e626cb067246a06ee57f0ff609f91238afff67be8650faba7d1492a02d8fcfa187cc7b8a3e9b57398e4b7da7c1081af30cc98df830ce2007a

  • SSDEEP

    6144:ois76is76is76is76is76is76is76is76is76is76is76is76is76is76is76isP:qEr

Score
10/10
guloaderremcosadobepdfdownloaderpersistencerat

Malware Config

Extracted

Family

remcos

Botnet

AdobePDF

C2

apdfhost.online:2404

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-X1WV4F

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • startup_value

    Remcos

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      Invoice FlexFleetRental-INV48398ladyfish - Generated 2023-04-13 - Copy.vbs

    • Size

      1.6MB

    • MD5

      8a16c55a5d919aa4a8c298d6cf60da15

    • SHA1

      47fd79f1dc1efe1b7fb62c4cbe28a8f5259b5ba9

    • SHA256

      6aabf2b83a939a7cc4c10369e8f88fb28bca49356bf5472248df62fc82d6a63f

    • SHA512

      c90846daf3a0089e626cb067246a06ee57f0ff609f91238afff67be8650faba7d1492a02d8fcfa187cc7b8a3e9b57398e4b7da7c1081af30cc98df830ce2007a

    • SSDEEP

      6144:ois76is76is76is76is76is76is76is76is76is76is76is76is76is76is76isP:qEr

    Score
    10/10
    guloaderremcosadobepdfdownloaderpersistencerat

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Remcos

      Remcos is a closed-source remote control and surveillance software.

      ratremcos

    • Blocklisted process makes network request

    • Checks QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Adds Run key to start application

      persistence

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

2
T1112

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks