General

  • Target

    497f7d69be6c9ba572ad8096d762eed9_JaffaCakes118

  • Size

    356KB

  • Sample

    240516-flk4tadb69

  • MD5

    497f7d69be6c9ba572ad8096d762eed9

  • SHA1

    38c86a5632b5e9ea39dbc21096b3401dc8944e75

  • SHA256

    2f4dbe106abeb7bd9cb954ab1997d25cef95da32d614e6bb2cb962543d07b89f

  • SHA512

    3434b179cd56847dc3f588ec7aec22622416848bdeb5c38f569cf0b616417aaeb7e3ac13698f1e64764816ac86383df26dac1fc5990590077bbf38dcde383083

  • SSDEEP

    6144:Sae/c0RVIqxFu4s2a9XHCd9hxJamsAT4k+wCGbfQfojzMBR5i:W/cMVDxFu43cHYf1TPCAxjzMU

Malware Config

Targets

    • Target

      497f7d69be6c9ba572ad8096d762eed9_JaffaCakes118

    • Size

      356KB

    • MD5

      497f7d69be6c9ba572ad8096d762eed9

    • SHA1

      38c86a5632b5e9ea39dbc21096b3401dc8944e75

    • SHA256

      2f4dbe106abeb7bd9cb954ab1997d25cef95da32d614e6bb2cb962543d07b89f

    • SHA512

      3434b179cd56847dc3f588ec7aec22622416848bdeb5c38f569cf0b616417aaeb7e3ac13698f1e64764816ac86383df26dac1fc5990590077bbf38dcde383083

    • SSDEEP

      6144:Sae/c0RVIqxFu4s2a9XHCd9hxJamsAT4k+wCGbfQfojzMBR5i:W/cMVDxFu43cHYf1TPCAxjzMU

    • ModiLoader, DBatLoader

      ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Checks for common network interception software

      Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VirtualBox drivers on disk

    • ModiLoader Second Stage

    • Looks for VMWare Tools registry key

    • 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

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Maps connected drives based on registry

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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

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

Virtualization/Sandbox Evasion

4
T1497

Modify Registry

2
T1112

Discovery

Software Discovery

1
T1518

Query Registry

6
T1012

Virtualization/Sandbox Evasion

4
T1497

File and Directory Discovery

1
T1083

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Tasks