Overview

overview

10

Static

static

5

Heart-Send...ig.bat

windows7-x64

10

Heart-Send...ig.bat

windows10-2004-x64

10

Heart-Send...ck.dll

windows7-x64

1

Heart-Send...ck.dll

windows10-2004-x64

1

Heart-Send...ad.exe

windows7-x64

3

Heart-Send...ad.exe

windows10-2004-x64

3

Heart-Send...er.exe

windows7-x64

10

Heart-Send...er.exe

windows10-2004-x64

10

Heart-Send...r1.exe

windows7-x64

10

Heart-Send...r1.exe

windows10-2004-x64

10

Heart-Send...ye.exe

windows7-x64

10

Heart-Send...ye.exe

windows10-2004-x64

10

Heart-Send...ck.dll

windows7-x64

1

Heart-Send...ck.dll

windows10-2004-x64

1

Heart-Send...ad.exe

windows7-x64

3

Heart-Send...ad.exe

windows10-2004-x64

3

Sharing

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General

  • Target
    d89a2246c6db2ec558bce3f1b3ca0cf32eb7dd9905b1ff30f802732434254c93
  • Size 1.4MB
  • Sample241107-prb8jasdjc
  • SHA256 d89a2246c6db2ec558bce3f1b3ca0cf32eb7dd9905b1ff30f802732434254c93
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
floxifnjratquasarhackedtestheartbackdoordiscoveryevasionexecutionpersistenceprivilege_escalationspywaretrojanupx

Malware Config

Extracted

Family

  • quasar

Version

  • 1.3.0.0

Botnet

  • Heart

C2

  • 185.163.127.20:61110

Mutex

  • HRT_MUTEX_kecTsVDPnERdvianlr

Attributes
  • encryption_key

    3vnM9JqtaSdxUVqeTXSi

  • install_name

    Subfile.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDirr

Extracted

Family

  • njrat

Version

  • 0.7d

Botnet

  • HacKedTEST

C2

  • chipo.publicvm.com:1177

Mutex

  • 4c71585ab01a8f1344352fb1f26b00fd

Attributes
  • reg_key

    4c71585ab01a8f1344352fb1f26b00fd

  • splitter

    |'|'|

Targets

    • Target
      Heart-Sender-V1.2_Cracked_by_JC0der-FireEye/Config/Config.bat
    • Size 580B
    • SHA256 cae2e9ddb120b89bb863815fbee0eeb597f576ec442242a87795244d2c2c8042
    • MD5 SHA1 SHA512
    Score
    10/10
    floxifquasarheartbackdoordiscoveryexecutionpersistenceprivilege_escalationspywaretrojanupx

    • Floxif family

      floxif

    • Floxif, Floodfix

      Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

      backdoortrojanfloxif

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Detects Floxif payload

      backdoor

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Event Triggered Execution: AppInit DLLs

      Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

      persistenceprivilege_escalation

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • UPX packed file

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

      upx
    behavioral1behavioral2
    • Target
      Heart-Sender-V1.2_Cracked_by_JC0der-FireEye/Config/Heart/HtmlAgilityPack.dll
    • Size 123KB
    • SHA256 eb6841497cafab1aac432b09f4979997fa3314d4828be15cdbd37f621ba38eac
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    behavioral3behavioral4
    • Target
      Heart-Sender-V1.2_Cracked_by_JC0der-FireEye/Config/Heart/Load.exe
    • Size 226KB
    • SHA256 1624af752c9f85fd117fafb28feb42a079f283dc133cdcc5799810072a95a6cb
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    discovery
    behavioral5behavioral6
    • Target
      Heart-Sender-V1.2_Cracked_by_JC0der-FireEye/Config/Loader.exe
    • Size 292KB
    • SHA256 e9780f257098c6503bf1c5a3715f27409c5015efe67060edb858c8bb54f876b3
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    floxifbackdoordiscoverypersistenceprivilege_escalationtrojanupx

    • Floxif family

      floxif

    • Floxif, Floodfix

      Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

      backdoortrojanfloxif

    • Detects Floxif payload

      backdoor

    • Event Triggered Execution: AppInit DLLs

      Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

      persistenceprivilege_escalation

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Loads dropped DLL

    • Enumerates connected drives

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

    • UPX packed file

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

      upx
    behavioral7behavioral8
    • Target
      Heart-Sender-V1.2_Cracked_by_JC0der-FireEye/Config/Loader1.exe
    • Size 147KB
    • SHA256 e0ec77a3548c4e55bc655b6754e8205bc09dd444e94886d3906e45fdff59ac02
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    floxifbackdoordiscoverytrojanupxpersistenceprivilege_escalation

    • Floxif family

      floxif

    • Floxif, Floodfix

      Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

      backdoortrojanfloxif

    • Detects Floxif payload

      backdoor

    • Event Triggered Execution: AppInit DLLs

      Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

      persistenceprivilege_escalation

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Loads dropped DLL

    • Enumerates connected drives

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

    • UPX packed file

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

      upx
    behavioral10behavioral9
    • Target
      Heart-Sender-V1.2_Cracked_by_JC0der-FireEye/Heart-Sender-V1.2 Cracked by JC0der-FireEye.exe
    • Size 1.1MB
    • SHA256 05ecfbb70aa1785e6c8aad3c7da653a797aba2193b7ef136d68e50e23315fbe2
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    floxifnjratquasarhackedtestheartbackdoordiscoveryevasionexecutionpersistenceprivilege_escalationspywaretrojanupx

    • Floxif family

      floxif

    • Floxif, Floodfix

      Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

      backdoortrojanfloxif

    • Njrat family

      njrat

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

      trojannjrat

    • Detects Floxif payload

      backdoor

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Event Triggered Execution: AppInit DLLs

      Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

      persistenceprivilege_escalation

    • Modifies Windows Firewall

      evasion

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Checks computer location settings

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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

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

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • UPX packed file

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

      upx
    behavioral11behavioral12
    • Target
      Heart-Sender-V1.2_Cracked_by_JC0der-FireEye/HtmlAgilityPack.dll
    • Size 123KB
    • SHA256 eb6841497cafab1aac432b09f4979997fa3314d4828be15cdbd37f621ba38eac
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    behavioral13behavioral14
    • Target
      Heart-Sender-V1.2_Cracked_by_JC0der-FireEye/Load.exe
    • Size 226KB
    • SHA256 1624af752c9f85fd117fafb28feb42a079f283dc133cdcc5799810072a95a6cb
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    discovery
    behavioral15behavioral16

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

2
T1546

AppInit DLLs

1
T1546.010

Netsh Helper DLL

1
T1546.007

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Event Triggered Execution

2
T1546

AppInit DLLs

1
T1546.010

Netsh Helper DLL

1
T1546.007

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Modify Registry

1
T1112

Credential Access

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

3
T1012

System Information Discovery

3
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

static1

upx
Score
5/10

behavioral1

floxifquasarheartbackdoordiscoveryexecutionpersistenceprivilege_escalationspywaretrojanupx
Score
10/10

behavioral2

floxifquasarheartbackdoordiscoveryexecutionpersistenceprivilege_escalationspywaretrojanupx
Score
10/10

behavioral3

Score
1/10

behavioral4

Score
1/10

behavioral5

discovery
Score
3/10

behavioral6

discovery
Score
3/10

behavioral7

floxifbackdoordiscoverypersistenceprivilege_escalationtrojanupx
Score
10/10

behavioral8

floxifbackdoordiscoverytrojanupx
Score
10/10

behavioral9

floxifbackdoordiscoverypersistenceprivilege_escalationtrojanupx
Score
10/10

behavioral10

floxifbackdoordiscoverytrojanupx
Score
10/10

behavioral11

floxifnjratquasarhackedtestheartbackdoordiscoveryevasionexecutionpersistenceprivilege_escalationspywaretrojanupx
Score
10/10

behavioral12

floxifnjratquasarhackedtestheartbackdoordiscoveryevasionexecutionpersistenceprivilege_escalationspywaretrojanupx
Score
10/10

behavioral13

Score
1/10

behavioral14

Score
1/10

behavioral15

discovery
Score
3/10

behavioral16

discovery
Score
3/10