General

  • Target

    Bez tytułu.png

  • Size

    210B

  • Sample

    240423-sljxzahc4v

  • MD5

    96406703da080780229fa319f2448994

  • SHA1

    787b6fe4be3e95e0592f9deddaccdb2a5eb4ce41

  • SHA256

    9ae0449c3a39d09fd963fce70aae5bc6f5ff2f08bfa902d306b40f33bdaa3cef

  • SHA512

    c136373ed8c0683dc69e6b56c6bf7a2166b86621ac74de0bdca59bfaa0f1c65d7e3b451be3c981f37dcd130ce053d14137fe059d0a22b2834580ab6493b1e325

Malware Config

Targets

    • Target

      Bez tytułu.png

    • Size

      210B

    • MD5

      96406703da080780229fa319f2448994

    • SHA1

      787b6fe4be3e95e0592f9deddaccdb2a5eb4ce41

    • SHA256

      9ae0449c3a39d09fd963fce70aae5bc6f5ff2f08bfa902d306b40f33bdaa3cef

    • SHA512

      c136373ed8c0683dc69e6b56c6bf7a2166b86621ac74de0bdca59bfaa0f1c65d7e3b451be3c981f37dcd130ce053d14137fe059d0a22b2834580ab6493b1e325

    • Contacts a large (503) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Possible privilege escalation attempt

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Registers COM server for autorun

    • Adds Run key to start application

    • Checks for any installed AV software in registry

    • Checks installed software on the system

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

    • Creates a large amount of network flows

      This may indicate a network scan to discover remotely running services.

    • Looks up external IP address via web service

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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Drops file in System32 directory

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

2
T1547.001

Defense Evasion

File and Directory Permissions Modification

1
T1222

Modify Registry

3
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Network Service Discovery

2
T1046

Query Registry

6
T1012

System Information Discovery

5
T1082

Software Discovery

1
T1518

Security Software Discovery

1
T1518.001

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Tasks