Resubmissions

11-06-2024 04:34

240611-e63zpavalb 10

11-06-2024 04:29

240611-e4kekathnb 10

General

  • Target

    2024-06-11_17e17cfcd5a54564a4f8fa7de2724135_ryuk

  • Size

    5.4MB

  • Sample

    240611-e63zpavalb

  • MD5

    17e17cfcd5a54564a4f8fa7de2724135

  • SHA1

    697a8affd445c8dc57993ff075042fc1b6cbff1d

  • SHA256

    ac355158b35182d2b564f19f574a6a5cdbeb890bddce280285bfccc81187d48d

  • SHA512

    b6278f9d59e3d3c293fe3e4db11e7d715f1103b68170f85320c96a12a73ebceb3a7db288e6491e414eba490a5a78e40c58a2a9fa72cf682a9ae08b71edb010aa

  • SSDEEP

    98304:pgHqE6OVQWJuhswoYv5eONVMSVlnsfGm2ceemmZqAZ8a+t1Twhehg0iIIjsEBq4T:phE/uWJysVYvsO4knseOeehZqAqa+3TX

Malware Config

Extracted

Family

cobaltstrike

C2

http://47.104.76.193:50050/c9Or

Attributes
  • user_agent

    User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.0; WOW64; Trident/5.0; msn OptimizedIE8;ENUS)

Targets

    • Target

      2024-06-11_17e17cfcd5a54564a4f8fa7de2724135_ryuk

    • Size

      5.4MB

    • MD5

      17e17cfcd5a54564a4f8fa7de2724135

    • SHA1

      697a8affd445c8dc57993ff075042fc1b6cbff1d

    • SHA256

      ac355158b35182d2b564f19f574a6a5cdbeb890bddce280285bfccc81187d48d

    • SHA512

      b6278f9d59e3d3c293fe3e4db11e7d715f1103b68170f85320c96a12a73ebceb3a7db288e6491e414eba490a5a78e40c58a2a9fa72cf682a9ae08b71edb010aa

    • SSDEEP

      98304:pgHqE6OVQWJuhswoYv5eONVMSVlnsfGm2ceemmZqAZ8a+t1Twhehg0iIIjsEBq4T:phE/uWJysVYvsO4knseOeehZqAqa+3TX

    • Cobaltstrike

      Detected malicious payload which is part of Cobaltstrike.

    • Modifies Shared Task Scheduler registry keys

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Unexpected DNS network traffic destination

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

    • Blocklisted process makes network request

    • Checks for any installed AV software in registry

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

2
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Software Discovery

1
T1518

Security Software Discovery

1
T1518.001

Query Registry

3
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

3
T1082

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Tasks