Overview

overview

10

Static

static

4ba36ecc13...ef.exe

windows7_x64

10

4ba36ecc13...ef.exe

windows10_x64

10

Resubmissions

09-10-2023 22:49

231009-2rwy6agh8x 3

07-07-2021 16:14

210707-eetm352lh6 10

Analysis

  • max time kernel
    298s
  • max time network
    274s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    07-07-2021 16:14

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General

  • Target

    4ba36ecc13f6b08e1523fa7f8fd228b739d1f6918c5c7f9779c536b91dbb3def.exe

  • Size

    31.4MB

  • MD5

    5e522e76e656ec090c8555b61fbcf226

  • SHA1

    6248d98b60c13b2d89caaa8059d29d4183616047

  • SHA256

    4ba36ecc13f6b08e1523fa7f8fd228b739d1f6918c5c7f9779c536b91dbb3def

  • SHA512

    b1f4a0f0aea64ab76d0635fac5d159a2dd9df73f0944b0bafb66d6bec16e6887e5c412334ffe7418d2609df07ab5732f8fd4c387181d5c33465f499d86c7a2d4

Score
10/10
jigsawpersistenceransomwarespywarestealer

Malware Config

Signatures

  • Jigsaw Ransomware

    Ransomware family first created in 2016. Named based on wallpaper set after infection in the early versions.

    ransomwarejigsaw
  • Executes dropped EXE 1 IoCs
  • Modifies extensions of user files 3 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 34 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4ba36ecc13f6b08e1523fa7f8fd228b739d1f6918c5c7f9779c536b91dbb3def.exe
    "C:\Users\Admin\AppData\Local\Temp\4ba36ecc13f6b08e1523fa7f8fd228b739d1f6918c5c7f9779c536b91dbb3def.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3736
    • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
      "C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe" C:\Users\Admin\AppData\Local\Temp\4ba36ecc13f6b08e1523fa7f8fd228b739d1f6918c5c7f9779c536b91dbb3def.exe
      2⤵
      • Executes dropped EXE
      • Modifies extensions of user files
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3348

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Data from Local System

1
T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
    MD5

    5e522e76e656ec090c8555b61fbcf226

    SHA1

    6248d98b60c13b2d89caaa8059d29d4183616047

    SHA256

    4ba36ecc13f6b08e1523fa7f8fd228b739d1f6918c5c7f9779c536b91dbb3def

    SHA512

    b1f4a0f0aea64ab76d0635fac5d159a2dd9df73f0944b0bafb66d6bec16e6887e5c412334ffe7418d2609df07ab5732f8fd4c387181d5c33465f499d86c7a2d4

    Download Submit
  • C:\Users\Admin\AppData\Local\Drpbx\drpbx.exe
    MD5

    5e522e76e656ec090c8555b61fbcf226

    SHA1

    6248d98b60c13b2d89caaa8059d29d4183616047

    SHA256

    4ba36ecc13f6b08e1523fa7f8fd228b739d1f6918c5c7f9779c536b91dbb3def

    SHA512

    b1f4a0f0aea64ab76d0635fac5d159a2dd9df73f0944b0bafb66d6bec16e6887e5c412334ffe7418d2609df07ab5732f8fd4c387181d5c33465f499d86c7a2d4

    Download Submit
  • memory/3348-116-0x0000000000000000-mapping.dmp
    Download
  • memory/3348-119-0x0000000001280000-0x0000000001282000-memory.dmp
    Filesize

    8KB

    Download
  • memory/3348-120-0x0000000001282000-0x0000000001284000-memory.dmp
    Filesize

    8KB

    Download
  • memory/3348-121-0x0000000001284000-0x0000000001285000-memory.dmp
    Filesize

    4KB

    Download
  • memory/3348-122-0x0000000001285000-0x0000000001287000-memory.dmp
    Filesize

    8KB

    Download
  • memory/3348-123-0x000000000128A000-0x000000000128F000-memory.dmp
    Filesize

    20KB

    Download
  • memory/3736-114-0x0000000000B60000-0x0000000000B62000-memory.dmp
    Filesize

    8KB

    Download
  • memory/3736-115-0x0000000000B62000-0x0000000000B64000-memory.dmp
    Filesize

    8KB

    Download