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16-01-2025 17:30

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16-01-2025 17:29

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16-01-2025 17:29

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13-01-2025 14:41

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General

  • Target

    4363463463464363463463463.exe.zip

  • Size

    4KB

  • Sample

    250116-v7e71s1ncy

  • MD5

    7b2b0ccc6317a6becadaf5e02311202e

  • SHA1

    ccad99b8fad61369101e068f0c3a5bec9cfa309f

  • SHA256

    bd948aeb2b607b34e8d32f22b9e5aee402057adebae4a2e0c70bd666e688f1f8

  • SHA512

    b7af04ee0792d2a13ffd7013e7c5f98cf037f06f8597e4f3261af04252137483ff7fcb7db28c60a543f130ac65307cd1c7a831c2267fa78a91f9acdcc535744a

  • SSDEEP

    96:ALOzCoGgabugh2Yu8fjMIsSv3JGHUrD5gf2jxkS7xQIKWV7YNgGptaT+YaL:ALObGgabf88jgcxR1NWIXWgGpo74

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

Target

C2

127.0.0.1:6070

affasdqa.ddns.net:6070

haffasdqa.duckdns.org:6070

Mutex

670d21b7-71ed-4958-9ba7-a58fa54d8203

Attributes
  • encryption_key

    25B2622CE0635F9A273AB61B1B7D7B94220AC509

  • install_name

    svhoste.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    svhoste

  • subdirectory

    SubDir

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

172.204.136.22:1604

18.ip.gl.ply.gg:6606

18.ip.gl.ply.gg:7707

18.ip.gl.ply.gg:8808

18.ip.gl.ply.gg:9028

0.tcp.in.ngrok.io:10147

Mutex

ghbyTnUySCmF

Attributes
  • delay

    3

  • install

    false

  • install_file

    RoyalKing.exe

  • install_folder

    %AppData%

aes.plain
aes.plain
aes.plain

Extracted

Family

asyncrat

Botnet

Default

C2

technical-southwest.gl.at.ply.gg:58694

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

havocc.ddns.net:4782

testinghigger-42471.portmap.host:42471

Extazz24535-22930.portmap.host:22930

192.168.68.104:4782

interestingsigma.hopto.org:20

14.243.221.170:2654

104.251.123.245:23600

Mutex

6a533ca9-c745-463c-8bba-b6aaa9eb7fab

Attributes
  • encryption_key

    CB213225C623A8CB39D3E1628CD4D7E7D686A7F3

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Discord

  • subdirectory

    SubDir

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

3.70.228.168:555

Mutex

bslxturcmlpmyqrv

Attributes
  • delay

    1

  • install

    true

  • install_file

    atat.exe

  • install_folder

    %AppData%

aes.plain

Extracted

Family

xworm

C2

127.0.0.1:6000

103.211.201.109:6000

127.0.0.1:48990

147.185.221.22:48990

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

  • telegram

    https://api.telegram.org/bot7929370892:AAGwrX5TeyxQidZdAEm_Z6-CDvPUOQzVY1M

Extracted

Family

quasar

Version

1.4.0

Botnet

svhost

C2

151.177.61.79:4782

Mutex

a148a6d8-1253-4e62-bc5f-c0242dd62e69

Attributes
  • encryption_key

    5BEC1A8BC6F8F695D1337C51454E0B7F3A4FE968

  • install_name

    svhost.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    svhost

  • subdirectory

    svhost

Extracted

Family

quasar

Version

1.4.0.0

Botnet

Office

C2

82.117.243.110:5173

Mutex

yfsS9ida0wX8mgpdJC

Attributes
  • encryption_key

    KDNBgA8jiBeGX1rj1dDt

  • install_name

    csrss.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    NET framework

  • subdirectory

    SubDir

Extracted

Family

gurcu

C2

https://api.telegram.org/bot7673498966:AAE8RwQQVWIce7zc1tvOHxg7_EravC7Vqis/sendDocument?chat_id=621271611

https://api.telegram.org/bot7929370892:AAGwrX5TeyxQidZdAEm_Z6-CDvPUOQzVY1M/sendMessage?chat_id=-4579594388

Targets

    • Target

      4363463463464363463463463.exe.bin

    • Size

      10KB

    • MD5

      2a94f3960c58c6e70826495f76d00b85

    • SHA1

      e2a1a5641295f5ebf01a37ac1c170ac0814bb71a

    • SHA256

      2fcad226b17131da4274e1b9f8f31359bdd325c9568665f08fd1f6c5d06a23ce

    • SHA512

      fbf55b55fcfb12eb8c029562956229208b9e8e2591859d6336c28a590c92a4d0f7033a77c46ef6ebe07ddfca353aba1e84b51907cd774beab148ee901c92d62f

    • SSDEEP

      192:xlwayyHOXGc20L7BIW12n/ePSjiTlzkGu8stYcFwVc03KY:xlwwHe/20PKn/cLTlHuptYcFwVc03K

    • AsyncRat

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

    • Asyncrat family

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Dcrat family

    • Detect Umbral payload

    • Detect Xworm Payload

    • Dharma

      Dharma is a ransomware that uses security software installation to hide malicious activities.

    • Dharma family

    • Gurcu family

    • Gurcu, WhiteSnake

      Gurcu aka WhiteSnake is a malware stealer written in C#.

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Umbral

      Umbral stealer is an opensource moduler stealer written in C#.

    • Umbral family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • Async RAT payload

    • DCRat payload

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Renames multiple (446) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Stops running service(s)

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • Adds Run key to start application

    • Drops desktop.ini file(s)

    • 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.

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks