Overview

overview

10

Static

static

1

uni.bat

windows10-2004-x64

10

Sharing

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General

  • Target

    uni.bat

  • Size

    15.5MB

  • Sample

    240528-q5dh7ahb29

  • MD5

    180cabfef9e517bf8a30eaf917fb06ca

  • SHA1

    d47987045a7f1888b9a2a8c0159b5bd2c9d79274

  • SHA256

    fe831f43955da5cacbdf9eb8331cb62907141cb0f566b53e5a5f222fe30ee78c

  • SHA512

    91fed14301919d6a0514dd843e6ffaae07fc538199644f4c9033a3ef717a65974ba940ae6646fd4289c614138adbd385b3706169b1754cd8d5b9ef04891f91bb

  • SSDEEP

    49152:mcIdr0nn+8BsYSVa+P+J0XCCeRWpsKlP7k7o6SwofCLl7w+i2+SpQf86Gtpek1GI:1

Score
10/10
quasarexecutionspywaretrojan

Malware Config

Extracted

Family

quasar

Attributes
  • reconnect_delay

    3000

Targets

    • Target

      uni.bat

    • Size

      15.5MB

    • MD5

      180cabfef9e517bf8a30eaf917fb06ca

    • SHA1

      d47987045a7f1888b9a2a8c0159b5bd2c9d79274

    • SHA256

      fe831f43955da5cacbdf9eb8331cb62907141cb0f566b53e5a5f222fe30ee78c

    • SHA512

      91fed14301919d6a0514dd843e6ffaae07fc538199644f4c9033a3ef717a65974ba940ae6646fd4289c614138adbd385b3706169b1754cd8d5b9ef04891f91bb

    • SSDEEP

      49152:mcIdr0nn+8BsYSVa+P+J0XCCeRWpsKlP7k7o6SwofCLl7w+i2+SpQf86Gtpek1GI:1

    Score
    10/10
    quasarexecutionspywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

      execution

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Deletes itself

    • Executes dropped EXE

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

6
T1012

System Information Discovery

6
T1082

Peripheral Device Discovery

2
T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks