Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    08-06-2022 20:25

General

  • Target

    179a8b79cfe8e5fc182b0f24a649c68ef287bdc086397da4c8dbac9209fa43e5.exe

  • Size

    3.1MB

  • MD5

    777d5d8c884c31a983b92bc10b2f00e3

  • SHA1

    9425fdbb712385ce16de28cd1263f12994faff73

  • SHA256

    179a8b79cfe8e5fc182b0f24a649c68ef287bdc086397da4c8dbac9209fa43e5

  • SHA512

    1f9b9d7de8d8f4a08011c42b0c2cae255bfc7966b299a44320e2c10a8fcd4075c2424caadae6da6d38f1996f95e2dd7701131f43e929d3770b336fa9e25be38c

Malware Config

Signatures

  • Loads dropped DLL 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 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\179a8b79cfe8e5fc182b0f24a649c68ef287bdc086397da4c8dbac9209fa43e5.exe
    "C:\Users\Admin\AppData\Local\Temp\179a8b79cfe8e5fc182b0f24a649c68ef287bdc086397da4c8dbac9209fa43e5.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2824
    • C:\Users\Admin\AppData\Local\Temp\179a8b79cfe8e5fc182b0f24a649c68ef287bdc086397da4c8dbac9209fa43e5.exe
      "C:\Users\Admin\AppData\Local\Temp\179a8b79cfe8e5fc182b0f24a649c68ef287bdc086397da4c8dbac9209fa43e5.exe"
      2⤵
      • Adds Run key to start application
      PID:3952

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:\Users\Admin\AppData\Local\Temp\nsm674C.tmp\System.dll
    Filesize

    11KB

    MD5

    55a26d7800446f1373056064c64c3ce8

    SHA1

    80256857e9a0a9c8897923b717f3435295a76002

    SHA256

    904fd5481d72f4e03b01a455f848dedd095d0fb17e33608e0d849f5196fb6ff8

    SHA512

    04b8ab7a85c26f188c0a06f524488d6f2ac2884bf107c860c82e94ae12c3859f825133d78338fd2b594dfc48f7dc9888ae76fee786c6252a5c77c88755128a5b

  • memory/3952-131-0x0000000000000000-mapping.dmp
  • memory/3952-132-0x0000000000400000-0x0000000000703000-memory.dmp
    Filesize

    3.0MB