Resubmissions

06-06-2022 14:46

220606-r5mbrshae6 10

06-06-2022 14:35

220606-rydq2sdcdq 10

General

  • Target

    c05561e39ebe1e3fb489e7d38906fc7f8ac49d56f22fe6e757c0412c70a7070a.7z

  • Size

    3.1MB

  • Sample

    220606-rydq2sdcdq

  • MD5

    0a5b087c39748cec335785c44d780bc8

  • SHA1

    e91809b36a346249ebddf0b4915e83e701462640

  • SHA256

    b6f36f8da8dfb0102f342abe6f1e17b00a90a2d3e91adadeacf0e2f23341b012

  • SHA512

    14adadff39e0ba347bde18543a3255b9b27ffed79020b4010d9ff17db473868982f0ad3294222d4f3a5696613d7cff775930447a2f4d0fe771c7bf8bf76f736b

Malware Config

Extracted

Family

sality

C2

http://89.119.67.154/testo5/

http://kukutrustnet777.info/home.gif

http://kukutrustnet888.info/home.gif

http://kukutrustnet987.info/home.gif

Targets

    • Target

      c05561e39ebe1e3fb489e7d38906fc7f8ac49d56f22fe6e757c0412c70a7070a

    • Size

      12.7MB

    • MD5

      06b07ecce07120ffc70da9f2ab553214

    • SHA1

      bfb2563cf8c7c2a5ce3b32acf4e7890b382e6c4e

    • SHA256

      c05561e39ebe1e3fb489e7d38906fc7f8ac49d56f22fe6e757c0412c70a7070a

    • SHA512

      a4cf68e455cdc046a91db56ca401ef2056fa3783bde6582bc98fbfa7b49d44a6f5290f01354179affd3f654a8f1c021ce700022c64b9ce1c41791d2b4b661598

    • Modifies firewall policy service

    • Modifies system executable filetype association

    • Sality

      Sality is backdoor written in C++, first discovered in 2003.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • UAC bypass

    • Windows security bypass

    • Executes dropped EXE

    • Registers COM server for autorun

    • UPX packed file

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

    • Checks computer location settings

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

    • Loads dropped DLL

    • 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.

    • Checks whether UAC is enabled

    • Enumerates connected drives

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

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Change Default File Association

1
T1042

Registry Run Keys / Startup Folder

2
T1060

Privilege Escalation

Bypass User Account Control

1
T1088

Defense Evasion

Modify Registry

8
T1112

Bypass User Account Control

1
T1088

Disabling Security Tools

3
T1089

Discovery

Query Registry

4
T1012

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Tasks