General

  • Target
    Unconfirmed 139577.crdownload
  • Size 8.9MB
  • Sample240404-n75pcafc65
  • SHA256 dd54ce0ce897705d1737595441c15da0dbe8875c18595c185f4d17637188d8c3
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • asyncrat

Version
  • L838 RAT v1.0.0

Botnet
  • Default

C2
  • 127.0.0.1:54984

  • 127.0.0.1:4449

  • l838.ddns.net:54984

  • l838.ddns.net:4449

Mutex
  • azjrpxchkiev

Attributes
  • delay

    1

  • install

    true

  • install_file

    Windows Driver Foundation.exe

  • install_folder

    %Temp%

aes.plain

Extracted

Family
  • xworm

C2
  • l838.ddns.net:3232

Attributes
  • Install_directory

    %Public%

  • install_file

    Windows Service Wrapper.exe

Targets

    • Target
      Unconfirmed 139577.crdownload
    • Size 8.9MB
    • SHA256 dd54ce0ce897705d1737595441c15da0dbe8875c18595c185f4d17637188d8c3
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      Reaper/Bin/FpsUnlocker.exe
    • Size 488KB
    • SHA256 d0685e397486bd9f54eda33133e87e3970dedf5038ef0e4d058de34d796d72ac
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    • Target
      Reaper/EasyExploits.dll
    • Size 10KB
    • SHA256 23312041ffa8628a7f89a21ba72af853cb90f26cf134d456656276930b26c1ec
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      Reaper/Reaper.exe
    • Size 8.4MB
    • SHA256 a8e3cbf1921a2485a307ac0ff2536accc77bc17db386a00e8d67c5537613b321
    • MD5 SHA1 SHA512 SSDEEP
    • AsyncRat

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

    • Detect Xworm Payload

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Async RAT payload

    • Blocklisted process makes network request

    • Drops file in Drivers directory

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • UPX packed file

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Target
      Reaper/Reaper.exe.config
    • Size 158B
    • SHA256 7ffc94d139bfc1b5cf222cdbdfe0bf53d665f8b6806625dccc6183a626a0433c
    • MD5 SHA1 SHA512
    Score
    3/10
    • Target
      Reaper/Scripts/Aimbot 3.0.txt
    • Size 98KB
    • SHA256 81fe4c1f8cbcf06e43a347fd8c39ceef960995031ae71db385c28636dfce3ec8
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      Reaper/Scripts/Aimbot.txt
    • Size 30KB
    • SHA256 d33d3205288b776d977ad0047647bc8d40b83bc7d4f190f86f1011c8b417e983
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      Reaper/Scripts/Alt+Print.txt
    • Size 276B
    • SHA256 1be1b505588a0ed63863a78daa2612cce59870c83476753f073ee7a09baba5e2
    • MD5 SHA1 SHA512
    Score
    1/10
    • Target
      Reaper/Scripts/Arsenal Kill All.txt
    • Size 987B
    • SHA256 3cb65764ae9ab02061f27376b6787d632982f5451a37a335b72623b81f3fa44c
    • MD5 SHA1 SHA512
    Score
    1/10
    • Target
      Reaper/Scripts/Arsenal.txt
    • Size 69B
    • SHA256 65a807665ffc96aafdd6e399814055ebf0f613510227f121a384a6ab88cebec5
    • MD5 SHA1 SHA512
    Score
    1/10
    • Target
      Reaper/Scripts/ArsenalHitboxExtender.txt
    • Size 1KB
    • SHA256 69077cd20bebad52854212dc80143d6cf992d18bf483b7f4f3f8647dd90e8759
    • MD5 SHA1 SHA512
    Score
    1/10
    • Target
      Reaper/Scripts/BRM5 Tp.txt
    • Size 12KB
    • SHA256 c0b8392007d433ba2b0f760e5d59a2f8ed40521ba82f2eaf3f271ac060ced99b
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      Reaper/Scripts/CC Aimbot.txt
    • Size 23KB
    • SHA256 54cba20aa0213ce83ed348763db0b17a55e4f39fbeae2ef0535ccf76b95bf622
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      Reaper/Scripts/Dex Explorer v2.txt
    • Size 632KB
    • SHA256 5573cc6f439511c5ec73b0c88af87bce49cac37475aa32da5b75b931f632a3dc
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      Reaper/Scripts/Mad City 2.txt
    • Size 266KB
    • SHA256 629a0b979031a8b94d19e55cc1974c1361b491b005ca6b2f849265c5812b39f4
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      Reaper/Scripts/TopKek V3.txt
    • Size 81KB
    • SHA256 c40fe38b134a8484794b773a363377ec8b37ed8bb5b5c88e182f4f7acc60b4c8
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10

MITRE ATT&CK Enterprise v15

Tasks

static1

Score
3/10

behavioral1

Score
1/10

behavioral2

Score
1/10

behavioral3

Score
1/10

behavioral4

Score
3/10

behavioral5

Score
1/10

behavioral6

Score
1/10

behavioral7

asyncratxwormdefaultrattrojanupx
Score
10/10

behavioral8

asyncratxwormdefaultratspywarestealertrojanupx
Score
10/10

behavioral9

Score
3/10

behavioral10

Score
3/10

behavioral11

Score
1/10

behavioral12

Score
1/10

behavioral13

Score
1/10

behavioral14

Score
1/10

behavioral15

Score
1/10

behavioral16

Score
1/10

behavioral17

Score
1/10

behavioral18

Score
1/10

behavioral19

Score
1/10

behavioral20

Score
1/10

behavioral21

Score
1/10

behavioral22

Score
1/10

behavioral23

Score
1/10

behavioral24

Score
1/10

behavioral25

Score
1/10

behavioral26

Score
1/10

behavioral27

Score
1/10

behavioral28

Score
1/10

behavioral29

Score
1/10

behavioral30

Score
1/10

behavioral31

Score
1/10

behavioral32

Score
1/10