Resubmissions

27-11-2022 16:14

221127-tpmnpsah62 8

27-11-2022 16:13

221127-tphdzsah49 0

General

  • Target

    scammer.png

  • Size

    110KB

  • Sample

    221127-tpmnpsah62

  • MD5

    ab1b7f8e9d319f0a9ab7a5e09d51176f

  • SHA1

    2bb3ba8dc0407c6a80e9c7a7b757dfb33df11801

  • SHA256

    1fe5c30f31f8c608a7f068beaf2d654349f2c4b1efb56b17afd0bcd879ee5f0d

  • SHA512

    23ef4449936f5efdefa3bcbcf61f5701819a16a9f1e3fa0df0160f74934b8b6251a25fec7688bd13e49f641f612f42bad592218e560afa80d3aadb93a4035fb4

  • SSDEEP

    3072:FIMFh5qv/moO9jn/HXEUtyI6SRLcH5EhcH5EDPqCCZD1MLy1M+AJpJ+:FILtYnv0UtyI15c2ciqV51l1mJ7+

Malware Config

Targets

    • Target

      scammer.png

    • Size

      110KB

    • MD5

      ab1b7f8e9d319f0a9ab7a5e09d51176f

    • SHA1

      2bb3ba8dc0407c6a80e9c7a7b757dfb33df11801

    • SHA256

      1fe5c30f31f8c608a7f068beaf2d654349f2c4b1efb56b17afd0bcd879ee5f0d

    • SHA512

      23ef4449936f5efdefa3bcbcf61f5701819a16a9f1e3fa0df0160f74934b8b6251a25fec7688bd13e49f641f612f42bad592218e560afa80d3aadb93a4035fb4

    • SSDEEP

      3072:FIMFh5qv/moO9jn/HXEUtyI6SRLcH5EhcH5EDPqCCZD1MLy1M+AJpJ+:FILtYnv0UtyI15c2ciqV51l1mJ7+

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Modifies Installed Components in the registry

    • Registers COM server for autorun

    • Sets file execution options in registry

    • 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.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • 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.

    • 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 v6

Persistence

Registry Run Keys / Startup Folder

4
T1060

Bootkit

1
T1067

Defense Evasion

Modify Registry

7
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

6
T1012

System Information Discovery

6
T1082

Security Software Discovery

1
T1063

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Tasks