General

  • Target

    5345a1927284d4752231d68744c652dcada463f8488e3e5633938fb1fba5901c

  • Size

    2.4MB

  • Sample

    240524-q9qz3sge79

  • MD5

    8b6c0a4303968f13f3645474a73cb7eb

  • SHA1

    4e760b62abb3edcd519a892f220667ba5d7e8871

  • SHA256

    5345a1927284d4752231d68744c652dcada463f8488e3e5633938fb1fba5901c

  • SHA512

    f6f912550804b94d2b02203fe55539f16369800fb94918fdd0ea2de43e746f8bc3894f961a9076d495cf37e8d391b36cd82c5fdd60698f31d8d7859d525b9277

  • SSDEEP

    49152:jxIRJF1HL+VdX68kU6JtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68d6tIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199689717899

https://t.me/copterwin

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:128.0) Gecko/20100101 Firefox/128.0

Targets

    • Target

      5345a1927284d4752231d68744c652dcada463f8488e3e5633938fb1fba5901c

    • Size

      2.4MB

    • MD5

      8b6c0a4303968f13f3645474a73cb7eb

    • SHA1

      4e760b62abb3edcd519a892f220667ba5d7e8871

    • SHA256

      5345a1927284d4752231d68744c652dcada463f8488e3e5633938fb1fba5901c

    • SHA512

      f6f912550804b94d2b02203fe55539f16369800fb94918fdd0ea2de43e746f8bc3894f961a9076d495cf37e8d391b36cd82c5fdd60698f31d8d7859d525b9277

    • SSDEEP

      49152:jxIRJF1HL+VdX68kU6JtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68d6tIuoITsdZ

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Tasks