Resubmissions

18-04-2021 01:04

210418-l61gq8jtsa 8

18-04-2021 01:01

210418-y7pbs19h3j 8

07-04-2021 00:47

210407-dyc6ed67ws 8

07-04-2021 00:43

210407-2h6x9trgc2 8

Analysis

  • max time kernel
    141s
  • max time network
    141s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    18-04-2021 01:04

General

  • Target

    2020_21_S2_A2.exe

  • Size

    75KB

  • MD5

    603638e373770eab32b41fac447754e8

  • SHA1

    fcec650c8784dfeb08e868c08be347f9d4d9a53b

  • SHA256

    5fd9a8605221ee520a11865a5b07c9b37c894acb8e38a2965fb3f31d02bdeedc

  • SHA512

    d83d7062aedb4eb77642aa91fb20c7159e403b87ea6de9c2487bec3739f2eac1dc86d40debca66cb9d93a71d43cd0869c2efbe7cf28deae9634add6387d3234b

Malware Config

Signatures

  • Executes dropped EXE 1 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 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2020_21_S2_A2.exe
    "C:\Users\Admin\AppData\Local\Temp\2020_21_S2_A2.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3944
    • C:\SLPUGZKV.exe
      "C:\SLPUGZKV.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      PID:4076

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\SLPUGZKV.exe
    MD5

    603638e373770eab32b41fac447754e8

    SHA1

    fcec650c8784dfeb08e868c08be347f9d4d9a53b

    SHA256

    5fd9a8605221ee520a11865a5b07c9b37c894acb8e38a2965fb3f31d02bdeedc

    SHA512

    d83d7062aedb4eb77642aa91fb20c7159e403b87ea6de9c2487bec3739f2eac1dc86d40debca66cb9d93a71d43cd0869c2efbe7cf28deae9634add6387d3234b

  • C:\SLPUGZKV.exe
    MD5

    603638e373770eab32b41fac447754e8

    SHA1

    fcec650c8784dfeb08e868c08be347f9d4d9a53b

    SHA256

    5fd9a8605221ee520a11865a5b07c9b37c894acb8e38a2965fb3f31d02bdeedc

    SHA512

    d83d7062aedb4eb77642aa91fb20c7159e403b87ea6de9c2487bec3739f2eac1dc86d40debca66cb9d93a71d43cd0869c2efbe7cf28deae9634add6387d3234b

  • memory/4076-114-0x0000000000000000-mapping.dmp