General

  • Target

    9d163fbffc9692a3143362c51d35d5ab52d1f209d9d5e053196c79a30e6f7acf

  • Size

    1.7MB

  • Sample

    231012-awy6jaff43

  • MD5

    a6ab201ae407fbe4a5da5f20dc38412b

  • SHA1

    b3f8caf67f36730ad87031d206db91c861980615

  • SHA256

    9d163fbffc9692a3143362c51d35d5ab52d1f209d9d5e053196c79a30e6f7acf

  • SHA512

    eb0e97119784d4f60ac5b1c499e4bdfa885243c8859d79e92e1c07a2aba3539606e5df978d8d63d7764fe898e691488a53d02fc495dc837b930cfe3d83cede2b

  • SSDEEP

    24576:fp1vJ+VbHGsD+KBrdrDeZYeGMqrK5Nt9Z64JrQTwkMZddfy6Tsqp+RjfMst:x3KpyJrQTwo6Tszgs

Malware Config

Targets

    • Target

      9d163fbffc9692a3143362c51d35d5ab52d1f209d9d5e053196c79a30e6f7acf

    • Size

      1.7MB

    • MD5

      a6ab201ae407fbe4a5da5f20dc38412b

    • SHA1

      b3f8caf67f36730ad87031d206db91c861980615

    • SHA256

      9d163fbffc9692a3143362c51d35d5ab52d1f209d9d5e053196c79a30e6f7acf

    • SHA512

      eb0e97119784d4f60ac5b1c499e4bdfa885243c8859d79e92e1c07a2aba3539606e5df978d8d63d7764fe898e691488a53d02fc495dc837b930cfe3d83cede2b

    • SSDEEP

      24576:fp1vJ+VbHGsD+KBrdrDeZYeGMqrK5Nt9Z64JrQTwkMZddfy6Tsqp+RjfMst:x3KpyJrQTwo6Tszgs

    • Phobos

      Phobos ransomware appeared at the beginning of 2019.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies boot configuration data using bcdedit

    • Renames multiple (171) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Renames multiple (346) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

    • Deletes backup catalog

      Uses wbadmin.exe to inhibit system recovery.

    • Modifies Windows Firewall

    • Drops startup file

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Drops desktop.ini file(s)

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Indicator Removal

3
T1070

File Deletion

3
T1070.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Impact

Inhibit System Recovery

4
T1490

Tasks