General

  • Target

    77aefa74fd5a32b496c9f5d752c40bcc2090ad714dc12befb3394b0a93d76b67

  • Size

    2.0MB

  • Sample

    240527-elr2page33

  • MD5

    b09419bc3565a362febd7768cf734d3d

  • SHA1

    0b1fa201ff324ae259eb230522527b75f96d7e93

  • SHA256

    77aefa74fd5a32b496c9f5d752c40bcc2090ad714dc12befb3394b0a93d76b67

  • SHA512

    ce4e55709d229ed54f6d2ed3c06ba53e44daa826e880926117983db6ff568316f2053b5295bd4efe013a0132a7cb93ac57005fa7abc3b304f5c1c5a26c6156f6

  • SSDEEP

    49152:OePpQEpJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEptIuoITsdZ

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

      77aefa74fd5a32b496c9f5d752c40bcc2090ad714dc12befb3394b0a93d76b67

    • Size

      2.0MB

    • MD5

      b09419bc3565a362febd7768cf734d3d

    • SHA1

      0b1fa201ff324ae259eb230522527b75f96d7e93

    • SHA256

      77aefa74fd5a32b496c9f5d752c40bcc2090ad714dc12befb3394b0a93d76b67

    • SHA512

      ce4e55709d229ed54f6d2ed3c06ba53e44daa826e880926117983db6ff568316f2053b5295bd4efe013a0132a7cb93ac57005fa7abc3b304f5c1c5a26c6156f6

    • SSDEEP

      49152:OePpQEpJtTF+TxMoxc1TU+j+dAzGwlrh:OePpQEptIuoITsdZ

    • 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