Overview

overview

10

Static

static

1

Browser Update.js

windows7-x64

10

Browser Update.js

windows10-2004-x64

10

Sharing

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General

  • Target

    Browser Update.js

  • Size

    606KB

  • Sample

    240319-zkme2afb67

  • MD5

    80f7b21c47f037118ebdce07c9ad7791

  • SHA1

    ea386166ac8a027a7f245cbfa357320734bbcfcc

  • SHA256

    fbecd7506cbac2937c708ec38567949f550e9f0d4a0575b157dec69d9920cf57

  • SHA512

    b2003629653f0a4d3402b0b10654f0bfb838d56ca3168b2e5eb29bffe814554e80c9b969cc15d6ca4e4ff8dbd223e6696a9db0d7fd0c167df412fc76a3c9d469

  • SSDEEP

    1536:5+BEG+BEVB/+BEVB/+BEVB2BEhBEZBEhBEZBEhBEZBEhBENBEFEMBEFEMBEFEMB4:n

Score
10/10
bitratrhadamanthyspersistencestealertrojanupx

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://193.233.132.136/a/z.png

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://193.233.132.136/a/s.png

Extracted

Family

bitrat

Version

1.38

C2

193.233.132.136:4404

Attributes
  • communication_password

    93d93f0d629d26b535ee4c950717ab2b

  • tor_process

    tor

Targets

    • Target

      Browser Update.js

    • Size

      606KB

    • MD5

      80f7b21c47f037118ebdce07c9ad7791

    • SHA1

      ea386166ac8a027a7f245cbfa357320734bbcfcc

    • SHA256

      fbecd7506cbac2937c708ec38567949f550e9f0d4a0575b157dec69d9920cf57

    • SHA512

      b2003629653f0a4d3402b0b10654f0bfb838d56ca3168b2e5eb29bffe814554e80c9b969cc15d6ca4e4ff8dbd223e6696a9db0d7fd0c167df412fc76a3c9d469

    • SSDEEP

      1536:5+BEG+BEVB/+BEVB/+BEVB2BEhBEZBEhBEZBEhBEZBEhBENBEFEMBEFEMBEFEMB4:n

    Score
    10/10
    bitratrhadamanthyspersistencestealertrojanupx

    • BitRAT

      BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

      trojanbitrat

    • Rhadamanthys

      Rhadamanthys is an info stealer written in C++ first seen in August 2022.

      stealerrhadamanthys

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Blocklisted process makes network request

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Adds Run key to start application

      persistence

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

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

1
T1112

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks