Analysis

  • max time kernel
    153s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    03-06-2022 01:56

General

  • Target

    142707e908e3691c05fe907738e9e0740a81be17f6a5a04d6e51647cdd57ba2f.exe

  • Size

    388KB

  • MD5

    0909bde36854892a4a4a2f68489cb410

  • SHA1

    1216ce7237a259f30d285753742487df1704805f

  • SHA256

    142707e908e3691c05fe907738e9e0740a81be17f6a5a04d6e51647cdd57ba2f

  • SHA512

    e379e0c339eefd921b78071d110fa7e96abc55f59a420ee7e80d3380dcf99e927417d29e8efd802adc19bb17846dbe7a55b570ac14c3633dfc146fb3e4706775

Malware Config

Signatures

  • Detect Neshta Payload 5 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\142707e908e3691c05fe907738e9e0740a81be17f6a5a04d6e51647cdd57ba2f.exe
    "C:\Users\Admin\AppData\Local\Temp\142707e908e3691c05fe907738e9e0740a81be17f6a5a04d6e51647cdd57ba2f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1944
    • C:\Users\Admin\AppData\Local\Temp\142707e908e3691c05fe907738e9e0740a81be17f6a5a04d6e51647cdd57ba2f.exe
      C:\Users\Admin\AppData\Local\Temp\142707e908e3691c05fe907738e9e0740a81be17f6a5a04d6e51647cdd57ba2f.exe
      2⤵
      • Modifies system executable filetype association
      • Checks computer location settings
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies registry class
      PID:4876

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Change Default File Association

1
T1042

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1944-130-0x00000000006B0000-0x0000000000716000-memory.dmp
    Filesize

    408KB

  • memory/1944-131-0x0000000005610000-0x0000000005BB4000-memory.dmp
    Filesize

    5.6MB

  • memory/1944-132-0x0000000005100000-0x0000000005192000-memory.dmp
    Filesize

    584KB

  • memory/1944-133-0x00000000050D0000-0x00000000050DA000-memory.dmp
    Filesize

    40KB

  • memory/1944-134-0x0000000007670000-0x00000000076E6000-memory.dmp
    Filesize

    472KB

  • memory/1944-135-0x0000000007930000-0x000000000794E000-memory.dmp
    Filesize

    120KB

  • memory/4876-136-0x0000000000000000-mapping.dmp
  • memory/4876-137-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/4876-138-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/4876-139-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/4876-140-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/4876-141-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB