Overview

overview

10

Static

static

1

file.exe

windows7-x64

10

file.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    116s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-04-2023 17:56

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General

  • Target

    file.exe

  • Size

    2.7MB

  • MD5

    4b8ea5598f2b38f21b81fa2067306302

  • SHA1

    1113bcc3abc625724757fd1368d03a50af9138a4

  • SHA256

    7848d4e5adc7034e32b63d9d09414f770117f12cd1f0cd2a4643b0d5e58207d1

  • SHA512

    76c973a312894327341d0a44014227f4ea1dfced2ec903cf934a2057ca9f701e83098bf587bf45919de3253fbfb770457022f35909b9941bf61fc0ba36eed8d4

  • SSDEEP

    49152:zGlJfsUp6qqY4/9Zf2YkBnGZlIacuzaH7pslSnCb+ZPYEA8A01iIodPCD0B2V+la:qvRqY4/9ZLqn62tbSeASAiAeoO00VCgL

Score
7/10
discovery

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

    discovery
  • Drops file in Program Files directory 9 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4784
    • C:\Users\Admin\AppData\Local\Temp\is-SRR32.tmp\is-3CI89.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-SRR32.tmp\is-3CI89.tmp" /SL4 $D004C "C:\Users\Admin\AppData\Local\Temp\file.exe" 2634247 56320
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:1148
      • C:\Program Files (x86)\FJWsoftFR\Rec412\Rec412.exe
        "C:\Program Files (x86)\FJWsoftFR\Rec412\Rec412.exe"
        3⤵
        • Executes dropped EXE
        PID:4284

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Program Files (x86)\FJWsoftFR\Rec412\Rec412.exe
    Filesize

    3.0MB

    MD5

    a54cc0da4884f08f04ce09b859869c2f

    SHA1

    cb679a4039a341b2ab763c2c2c25abd39b432668

    SHA256

    bcc5e091b89290e398fe59a51bed1ecb8f33dcb94292f2bd1e9ba20ba393eb6f

    SHA512

    0b5af4acc2499b41d06c43c037e660fad4748507ed38280f8a5a5433f187acda6f237ff8d89b10aed48fa6a4e34ea0261c561b2a9cade5db95539fc82fdec23a

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\is-6BNTG.tmp\_isetup\_iscrypt.dll
    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\is-6BNTG.tmp\_isetup\_isdecmp.dll
    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\is-6BNTG.tmp\_isetup\_isdecmp.dll
    Filesize

    13KB

    MD5

    a813d18268affd4763dde940246dc7e5

    SHA1

    c7366e1fd925c17cc6068001bd38eaef5b42852f

    SHA256

    e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

    SHA512

    b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\is-SRR32.tmp\is-3CI89.tmp
    Filesize

    659KB

    MD5

    57d101722b08967ce53be6109b7f6ccf

    SHA1

    f62e5f39efbfb03d0ddd822963122eb1945d9f18

    SHA256

    5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9

    SHA512

    57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\is-SRR32.tmp\is-3CI89.tmp
    Filesize

    659KB

    MD5

    57d101722b08967ce53be6109b7f6ccf

    SHA1

    f62e5f39efbfb03d0ddd822963122eb1945d9f18

    SHA256

    5b433440454647dc2775cacf3258f2272cb2fc0ec870b862744aad4ee7bc7ec9

    SHA512

    57158b946d08d669967f8b09dde8a44a1e2c94ac0a313aa6f3eb52c651c73e7546b085a201847757ac15911d797a8fb2032a13e845b790af5279abd344793f4b

    Download Submit
  • memory/1148-154-0x0000000000790000-0x0000000000791000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1148-171-0x0000000000400000-0x00000000004B4000-memory.dmp
    Filesize

    720KB

    Download
  • memory/4284-173-0x0000000000400000-0x00000000014FF000-memory.dmp
    Filesize

    17.0MB

    Download
  • memory/4284-174-0x0000000000400000-0x00000000014FF000-memory.dmp
    Filesize

    17.0MB

    Download
  • memory/4784-133-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

    Download
  • memory/4784-172-0x0000000000400000-0x0000000000414000-memory.dmp
    Filesize

    80KB

    Download