Analysis

  • max time kernel
    127s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    02-08-2022 12:51

General

  • Target

    792403c09d694a4c276a8403c8daa8c6f53dc6e432787d5977123d0bcc580895.exe

  • Size

    5.9MB

  • MD5

    dbd24e094b7e6223953c4ef07daedf64

  • SHA1

    b46b33307ae45bb63fa06c6b1077ade29c85ba63

  • SHA256

    792403c09d694a4c276a8403c8daa8c6f53dc6e432787d5977123d0bcc580895

  • SHA512

    2db2772c05b6a0c3f5b4addc2e348a9c621f8009cd8f4655c9a71dda28581415e52d09b79fb53820066910654807760b331277d36020209484073f18e611528c

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Loads dropped DLL 2 IoCs
  • Themida packer 4 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

Processes

  • C:\Users\Admin\AppData\Local\Temp\792403c09d694a4c276a8403c8daa8c6f53dc6e432787d5977123d0bcc580895.exe
    "C:\Users\Admin\AppData\Local\Temp\792403c09d694a4c276a8403c8daa8c6f53dc6e432787d5977123d0bcc580895.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    PID:608

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\nsd2B56.tmp\INetC.dll
    Filesize

    25KB

    MD5

    40d7eca32b2f4d29db98715dd45bfac5

    SHA1

    124df3f617f562e46095776454e1c0c7bb791cc7

    SHA256

    85e03805f90f72257dd41bfdaa186237218bbb0ec410ad3b6576a88ea11dccb9

    SHA512

    5fd4f516ce23fb7e705e150d5c1c93fc7133694ba495fb73101674a528883a013a34ab258083aa7ce6072973b067a605158316a4c9159c1b4d765761f91c513d

  • \Users\Admin\AppData\Local\Temp\nsd2B56.tmp\xml.dll
    Filesize

    1.3MB

    MD5

    16fb09aa40b95058de8068feccd50b41

    SHA1

    070e43deabcf8e2bf60db61f9c38dceb87f71de7

    SHA256

    49764fb9d89ef0db55bd4528b7a726d76c4820acafe44f7ad27fba6b014fe2cf

    SHA512

    b471d5f4529fb84ec4e71fe9844d164f0eefed6385e104bc25c8f488fd446831d8c9350fb412271b71b0441b1b7037d7a213ea38a2bce7e7848cf4dcaa4421d7

  • memory/608-54-0x0000000074F01000-0x0000000074F03000-memory.dmp
    Filesize

    8KB

  • memory/608-56-0x0000000000400000-0x0000000000A44000-memory.dmp
    Filesize

    6.3MB

  • memory/608-57-0x0000000000400000-0x0000000000A44000-memory.dmp
    Filesize

    6.3MB

  • memory/608-60-0x0000000000400000-0x0000000000A44000-memory.dmp
    Filesize

    6.3MB

  • memory/608-61-0x0000000000400000-0x0000000000A44000-memory.dmp
    Filesize

    6.3MB