General

  • Target

    F820.tmp.exe

  • Size

    813KB

  • Sample

    200427-j1zvw7s5da

  • MD5

    42e683f3f24484bd47f079b114002571

  • SHA1

    4a7840d449e1454561a34c49f7d91224ef892e2c

  • SHA256

    ce90d07b63358dc14f246849d5a04b41692c849cdd2de04c2dc8b0e161a45b3e

  • SHA512

    fff26cf5458487b88872f5150cf3ee10a2d6b6a94a16e05daf672fb7407c0e417d8477b0d8a5ab96f417669c16149bea98a8075ab7609379cce7006a5be69c8f

Malware Config

Targets

    • Target

      F820.tmp.exe

    • Size

      813KB

    • MD5

      42e683f3f24484bd47f079b114002571

    • SHA1

      4a7840d449e1454561a34c49f7d91224ef892e2c

    • SHA256

      ce90d07b63358dc14f246849d5a04b41692c849cdd2de04c2dc8b0e161a45b3e

    • SHA512

      fff26cf5458487b88872f5150cf3ee10a2d6b6a94a16e05daf672fb7407c0e417d8477b0d8a5ab96f417669c16149bea98a8075ab7609379cce7006a5be69c8f

    • Disables Task Manager via registry modification

    • Drops file in Drivers directory

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • Adds Run entry to start application

    • Checks for installed software on the system

    • Looks up external IP address via web service

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

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

2
T1005

Tasks