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General

  • Target

    tmp

  • Size

    12.5MB

  • Sample

    231031-zp53yadf5w

  • MD5

    d9ebd26ee58f71cde091943042318e1e

  • SHA1

    dd769d691f1b937aa4db724c7d0686dfe09989d4

  • SHA256

    7b101e4c3f86d6b121d25c79d718af9b24ad1ba2bbf9ad83dc285b8ba2e4756a

  • SHA512

    c542bbac2afdc4371a42fc7a678a9f12855a0fa07bf9ea32403acdae7bc460da3b2d8990af6fb47ed82e74aaeaa4277ce8093e8fe9d75a8151a4e3493136c7ef

  • SSDEEP

    393216:Y3Jwzzz3BmMupONDnuc6zhVu2fX5xQnRh7UBlLKcOLyjM:4/zhNiEB9Kq

Malware Config

Extracted

Family

smokeloader

Botnet

up3

Extracted

Family

smokeloader

Version

2020

C2

http://host-file-host6.com/

http://host-host-file8.com/

rc4.i32
rc4.i32

Targets

    • Target

      tmp

    • Size

      12.5MB

    • MD5

      d9ebd26ee58f71cde091943042318e1e

    • SHA1

      dd769d691f1b937aa4db724c7d0686dfe09989d4

    • SHA256

      7b101e4c3f86d6b121d25c79d718af9b24ad1ba2bbf9ad83dc285b8ba2e4756a

    • SHA512

      c542bbac2afdc4371a42fc7a678a9f12855a0fa07bf9ea32403acdae7bc460da3b2d8990af6fb47ed82e74aaeaa4277ce8093e8fe9d75a8151a4e3493136c7ef

    • SSDEEP

      393216:Y3Jwzzz3BmMupONDnuc6zhVu2fX5xQnRh7UBlLKcOLyjM:4/zhNiEB9Kq

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Windows security bypass

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Modifies boot configuration data using bcdedit

    • XMRig Miner payload

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Possible attempt to disable PatchGuard

      Rootkits can use kernel patching to embed themselves in an operating system.

    • Stops running service(s)

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

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

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Windows security modification

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • Manipulates WinMon driver.

      Roottkits write to WinMon to hide PIDs from being detected.

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks