Analysis

  • max time kernel
    167s
  • max time network
    166s
  • platform
    windows10_x64
  • resource
    win10-20220414-en
  • submitted
    15-06-2022 12:16

General

  • Target

    7afd3634a44e0fac1006ed44b66e67fc4c58704cfcfcbe2266c9f52a3fcccbd6.exe

  • Size

    298KB

  • MD5

    e29af60c4ef79bee0553d2fb6e5e45bf

  • SHA1

    621afdcdfdba54a39c17ff294879dcfdb944593e

  • SHA256

    7afd3634a44e0fac1006ed44b66e67fc4c58704cfcfcbe2266c9f52a3fcccbd6

  • SHA512

    6b1e06f84e16670c444adc4f465d0aab9339dd72f3dca95bed3484ad51556a9879f2ccf87146294011b723b10996fe47ff34a866426037f89c98b1100a0ed611

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

s3s3

Decoy

tvielotus.com

teesta.xyz

talentrecruitor.com

pamaungipb.com

xn--90ahkh6a6b8b.site

910carolina.com

toyotaecoyouth-dev.com

invetnables.com

gdexc.com

ssw168.com

householdmould.com

mqttradar.xyz

t333c.com

thepausestudio.com

evershedsutherlands.com

asbdataplus.com

preddylilthingz.com

jepwu.com

tvlido.com

artovus.com

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • 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.

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

  • Formbook Payload 5 IoCs
  • 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.

  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 55 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 46 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:3152
    • C:\Users\Admin\AppData\Local\Temp\7afd3634a44e0fac1006ed44b66e67fc4c58704cfcfcbe2266c9f52a3fcccbd6.exe
      "C:\Users\Admin\AppData\Local\Temp\7afd3634a44e0fac1006ed44b66e67fc4c58704cfcfcbe2266c9f52a3fcccbd6.exe"
      2⤵
      • Modifies system executable filetype association
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:2796
      • C:\Users\Admin\AppData\Local\Temp\3582-490\7afd3634a44e0fac1006ed44b66e67fc4c58704cfcfcbe2266c9f52a3fcccbd6.exe
        "C:\Users\Admin\AppData\Local\Temp\3582-490\7afd3634a44e0fac1006ed44b66e67fc4c58704cfcfcbe2266c9f52a3fcccbd6.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4396
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
          4⤵
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:4104
    • C:\Windows\SysWOW64\svchost.exe
      "C:\Windows\SysWOW64\svchost.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5088
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
        3⤵
          PID:4264

    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

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    1
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\3582-490\7afd3634a44e0fac1006ed44b66e67fc4c58704cfcfcbe2266c9f52a3fcccbd6.exe
      Filesize

      257KB

      MD5

      c26f62be6304e0e2c12dba146a372c21

      SHA1

      2497d5377572816d9490f074949efde8e65f49f4

      SHA256

      45b1927934099ea95d315972f7f128ba3af4a64aa483d964f94c599e8e16f094

      SHA512

      365c33622bb675109dbf9093b0d2a5d3635c8cf9591ff3af6d4be3690499e40252b1ec3712d4031424cf2df8958b197566e995f58d511b16a301b28bdf9c5718

    • C:\Users\Admin\AppData\Local\Temp\3582-490\7afd3634a44e0fac1006ed44b66e67fc4c58704cfcfcbe2266c9f52a3fcccbd6.exe
      Filesize

      257KB

      MD5

      c26f62be6304e0e2c12dba146a372c21

      SHA1

      2497d5377572816d9490f074949efde8e65f49f4

      SHA256

      45b1927934099ea95d315972f7f128ba3af4a64aa483d964f94c599e8e16f094

      SHA512

      365c33622bb675109dbf9093b0d2a5d3635c8cf9591ff3af6d4be3690499e40252b1ec3712d4031424cf2df8958b197566e995f58d511b16a301b28bdf9c5718

    • memory/2796-155-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-121-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-118-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-119-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-120-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-115-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-123-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-122-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-124-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-125-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-126-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-127-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-128-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-129-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-130-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-131-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-132-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-133-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-134-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-135-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-137-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-136-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-138-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-139-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-140-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-141-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-142-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-143-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-144-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-145-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-116-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-147-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-148-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-149-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-150-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-151-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-152-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-153-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-154-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-114-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-117-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/2796-146-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/3152-272-0x0000000006BF0000-0x0000000006D36000-memory.dmp
      Filesize

      1.3MB

    • memory/3152-269-0x0000000006BF0000-0x0000000006D36000-memory.dmp
      Filesize

      1.3MB

    • memory/3152-236-0x00000000066F0000-0x000000000683D000-memory.dmp
      Filesize

      1.3MB

    • memory/4104-207-0x000000000041F110-mapping.dmp
    • memory/4104-239-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB

    • memory/4104-235-0x0000000005780000-0x0000000005911000-memory.dmp
      Filesize

      1.6MB

    • memory/4104-234-0x0000000005920000-0x0000000005C40000-memory.dmp
      Filesize

      3.1MB

    • memory/4104-216-0x0000000000400000-0x000000000042F000-memory.dmp
      Filesize

      188KB

    • memory/4264-253-0x0000000000000000-mapping.dmp
    • memory/4396-164-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-203-0x0000000002AF0000-0x0000000002B2A000-memory.dmp
      Filesize

      232KB

    • memory/4396-177-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-170-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-171-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-156-0x0000000000000000-mapping.dmp
    • memory/4396-173-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-174-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-175-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-176-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-169-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-172-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-159-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-179-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-192-0x0000000000740000-0x0000000000780000-memory.dmp
      Filesize

      256KB

    • memory/4396-168-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-167-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-158-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-165-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-178-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-163-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-180-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-162-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-161-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/4396-160-0x0000000077140000-0x00000000772CE000-memory.dmp
      Filesize

      1.6MB

    • memory/5088-250-0x0000000000920000-0x000000000094F000-memory.dmp
      Filesize

      188KB

    • memory/5088-259-0x0000000003520000-0x0000000003840000-memory.dmp
      Filesize

      3.1MB

    • memory/5088-268-0x0000000003390000-0x0000000003520000-memory.dmp
      Filesize

      1.6MB

    • memory/5088-249-0x00000000009D0000-0x00000000009DC000-memory.dmp
      Filesize

      48KB

    • memory/5088-270-0x0000000000920000-0x000000000094F000-memory.dmp
      Filesize

      188KB

    • memory/5088-271-0x0000000003390000-0x0000000003520000-memory.dmp
      Filesize

      1.6MB

    • memory/5088-237-0x0000000000000000-mapping.dmp