General

  • Target

    tt.exe

  • Size

    617KB

  • Sample

    240525-1xj14sce86

  • MD5

    beb07313b90aa52617f66eebafcd33c9

  • SHA1

    9edc8d3fc1c7574a837ece68ef6c6a1953486b25

  • SHA256

    fb3830e4fccfcfb19ac8a554d807a8d56a16fb7863e5017f77d07b29ec278129

  • SHA512

    6d2d532a11838a082c8653f61961e52c59436025bf001b36771ee743e85cdf6ef3a13bcaf8516d53be4433310b3cad291cd4204f102848816e2e126c35090ad9

  • SSDEEP

    12288:kIAKggBeCE3Lyjed9fXOZKQkU4yv7Cv7lRaAODHVrB/lDH8:krgBeC7jed9fOZqtyv2vSAODdB9DH

Malware Config

Extracted

Family

xworm

C2

wiz.bounceme.net:6000

Mutex

سPيIXNtJمrCWpكxـاطMWEلD21LcبإA

Attributes
  • Install_directory

    %Port%

  • install_file

    USB.exe

aes.plain
aes.plain

Targets

    • Target

      tt.exe

    • Size

      617KB

    • MD5

      beb07313b90aa52617f66eebafcd33c9

    • SHA1

      9edc8d3fc1c7574a837ece68ef6c6a1953486b25

    • SHA256

      fb3830e4fccfcfb19ac8a554d807a8d56a16fb7863e5017f77d07b29ec278129

    • SHA512

      6d2d532a11838a082c8653f61961e52c59436025bf001b36771ee743e85cdf6ef3a13bcaf8516d53be4433310b3cad291cd4204f102848816e2e126c35090ad9

    • SSDEEP

      12288:kIAKggBeCE3Lyjed9fXOZKQkU4yv7Cv7lRaAODHVrB/lDH8:krgBeC7jed9fOZqtyv2vSAODdB9DH

    • Detect Xworm Payload

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Sets service image path in registry

    • Checks computer location settings

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

    • Executes dropped EXE

    • Enumerates connected drives

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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v15

Tasks