Overview

overview

10

Static

static

3

1cb762f6c9...f9.exe

windows7-x64

10

1cb762f6c9...f9.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    1cb762f6c9fc262dc75c639862cfcfaea947f7c5e6a4983b33ddd5a1118e3bf9

  • Size

    2.4MB

  • Sample

    240525-zd736aaa84

  • MD5

    b3a53a41f415ab344937b86d5f39eabb

  • SHA1

    74cc99a3b6da3ee47d6e8e44276b3d3dbc998a03

  • SHA256

    1cb762f6c9fc262dc75c639862cfcfaea947f7c5e6a4983b33ddd5a1118e3bf9

  • SHA512

    5060a9de5387f2940234ce12abf8869b1e8099e97d09175c0c7f4621dfe3613b2ab75fa0a151cf2243660a8dcee7dfc035f32b82a04acf94e729c30a9d772f0b

  • SSDEEP

    49152:jxIRJF1HL+VdX68kUeJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68detIuoITsdZ

Score
10/10
stealcvidardiscoveryspywarestealer

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

      1cb762f6c9fc262dc75c639862cfcfaea947f7c5e6a4983b33ddd5a1118e3bf9

    • Size

      2.4MB

    • MD5

      b3a53a41f415ab344937b86d5f39eabb

    • SHA1

      74cc99a3b6da3ee47d6e8e44276b3d3dbc998a03

    • SHA256

      1cb762f6c9fc262dc75c639862cfcfaea947f7c5e6a4983b33ddd5a1118e3bf9

    • SHA512

      5060a9de5387f2940234ce12abf8869b1e8099e97d09175c0c7f4621dfe3613b2ab75fa0a151cf2243660a8dcee7dfc035f32b82a04acf94e729c30a9d772f0b

    • SSDEEP

      49152:jxIRJF1HL+VdX68kUeJtTF+TxMoxc1TU+j+dAzGwlrh:jEJF16dX68detIuoITsdZ

    Score
    10/10
    stealcvidardiscoveryspywarestealer

    • Detect Vidar Stealer

      stealer

    • Stealc

      Stealc is an infostealer written in C++.

      stealerstealc

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

      stealervidar

    • Downloads MZ/PE file

    • 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.

      spywarestealer

    • Checks installed software on the system

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

      discovery

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks