Resubmissions

13-06-2023 14:23

230613-rqmzragf66 10

13-06-2023 14:10

230613-rg3zlsge64 10

13-06-2023 02:06

230613-cjr8kafa5x 10

General

  • Target

    d872fbe973a4799e94f57abdc594b37e

  • Size

    475KB

  • Sample

    230613-rqmzragf66

  • MD5

    d872fbe973a4799e94f57abdc594b37e

  • SHA1

    b16837fd4ce58947536360e301e985c7d37d6b1c

  • SHA256

    11e3923cc252bb9022a41a9f5b73672ea8b0798e4492e603ac088d913d7c80c0

  • SHA512

    772f155b664316993bfaa04f4fdf54d9f0b41f7a11ecb39bf7a9409f7afecf612f1ebdf2df7ef548b967291edee1e639d723b6e4c16fc0b36be414e45ac2d53f

  • SSDEEP

    6144:w9TKnLFNE2Dg5PjGnBEYfzTFYIKwstHLzizUblgFBNc3d2RohDAF:w9TKDyxYfz5mwCH/iclgFBGNSoy

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://drive.google.com/uc?export=download&id=1yzIedgOlbPjUc006zFjrkRkJWDbchF0u

Extracted

Family

raccoon

rc4.plain

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

zerocool888.duckdns.org:8848

zerocool888.duckdns.org:8898

Mutex

DcRatMutex_imlegion

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

remcos

Botnet

RemoteHost

C2

elpapa0810.mypsx.net:2024

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-6D8AYC

  • 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

      d872fbe973a4799e94f57abdc594b37e

    • Size

      475KB

    • MD5

      d872fbe973a4799e94f57abdc594b37e

    • SHA1

      b16837fd4ce58947536360e301e985c7d37d6b1c

    • SHA256

      11e3923cc252bb9022a41a9f5b73672ea8b0798e4492e603ac088d913d7c80c0

    • SHA512

      772f155b664316993bfaa04f4fdf54d9f0b41f7a11ecb39bf7a9409f7afecf612f1ebdf2df7ef548b967291edee1e639d723b6e4c16fc0b36be414e45ac2d53f

    • SSDEEP

      6144:w9TKnLFNE2Dg5PjGnBEYfzTFYIKwstHLzizUblgFBNc3d2RohDAF:w9TKDyxYfz5mwCH/iclgFBGNSoy

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Lumma Stealer

      An infostealer written in C++ first seen in August 2022.

    • Raccoon

      Raccoon is an infostealer written in C++ and first seen in 2019.

    • Remcos

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

    • Async RAT payload

    • Blocklisted process makes network request

    • Drops file in Drivers directory

    • Modifies Installed Components in the registry

    • Sets file execution options in registry

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Registers COM server for autorun

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks whether UAC is enabled

    • Drops desktop.ini file(s)

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks