Analysis

  • max time kernel
    146s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    04-05-2021 20:28

General

  • Target

    ddb5186ef00a92423f635bd5e267f452cb4785a0454e09a60677cf03a05a9a43.exe

  • Size

    430KB

  • MD5

    ab8f50a8ce75108e39e110f206b9d281

  • SHA1

    e523bf8ab764f9072cef29528e626bfa19bec808

  • SHA256

    ddb5186ef00a92423f635bd5e267f452cb4785a0454e09a60677cf03a05a9a43

  • SHA512

    8d5fcc88f7811cedfb2ab00fc86288a7642c8cdf72b057b2a134a78ebccce078cb8858ae377cea2d26d751133b41c19277a0fe7a443e16cc1069156a5ab1956a

Malware Config

Signatures

  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

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

  • Modifies WinLogon 2 TTPs 1 IoCs
  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 42 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ddb5186ef00a92423f635bd5e267f452cb4785a0454e09a60677cf03a05a9a43.exe
    "C:\Users\Admin\AppData\Local\Temp\ddb5186ef00a92423f635bd5e267f452cb4785a0454e09a60677cf03a05a9a43.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Enumerates connected drives
    • Modifies WinLogon
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    PID:1048

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Winlogon Helper DLL

1
T1004

Defense Evasion

Modify Registry

2
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

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Downloads