Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2024 18:37

General

  • Target

    LVtvY.txt.exe

  • Size

    568KB

  • MD5

    2f159c22c90f5cbddfdba3455f2aa94e

  • SHA1

    57c7fb9804ba3fa064fac0a78cb5cfeb7b9d10c2

  • SHA256

    988d2c306698b469a52c807a28fbd030868b108458ed2b72e6f776f2ed933703

  • SHA512

    af31a2f9a5c6f7ce08429a6047b1d3ac3362b302b4b684c91ea3057cd8e4c77eb2e70901d1e1269181999ffe76e85a3b182751ad369d212522f2e18acaf64bb4

  • SSDEEP

    12288:efll3msRDZti+FF2WoYX0FvSYHWQaHlgxbMypeUtTX:CjW0N3j2Q0FBxheUt

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

aofk

Decoy

theplanetviral.com

51gayporn.com

mesathean.com

vaguidelines-updated.com

newuniverse.net

daveslehighvalleyvac.com

balikesirmasajsalonuu.com

chepinclub.com

shkafko.com

xn--eh3b11fp3f4me.com

qgochyljokbjjx.com

ashleetaylor.net

neckbeardnation.com

jordanthedev.com

pnwminiacs.com

tastyafrecipes.com

postmortemrecycled.com

bodypiercingblog.com

northwestclassicfirearms.com

manilagogo.com

Extracted

Family

nanocore

Version

1.2.2.0

C2

194.5.97.179:4488

Mutex

83652750-fccd-4151-ba31-011bfa7c440f

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-07-12T02:09:43.633412236Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    4488

  • default_group

    GOODS

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    83652750-fccd-4151-ba31-011bfa7c440f

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    194.5.97.179

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Signatures

  • Formbook

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

  • Formbook family
  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Nanocore family
  • Formbook payload 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 35 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1208
    • C:\Users\Admin\AppData\Local\Temp\LVtvY.txt.exe
      "C:\Users\Admin\AppData\Local\Temp\LVtvY.txt.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2212
      • C:\Users\Admin\AppData\Roaming\Zlfac\Uulebo.exe
        "C:\Users\Admin\AppData\Roaming\Zlfac\Uulebo.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2384
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1280
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
          4⤵
          • Adds Run key to start application
          • Checks whether UAC is enabled
          • Drops file in Program Files directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:576
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "UDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp693E.tmp"
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:1684
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "UDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp699D.tmp"
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:1148
        • C:\Users\Admin\AppData\Roaming\bin.exe
          "C:\Users\Admin\AppData\Roaming\bin.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:2360
    • C:\Windows\SysWOW64\wininit.exe
      "C:\Windows\SysWOW64\wininit.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2608
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Users\Admin\AppData\Roaming\bin.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:604

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp693E.tmp

    Filesize

    1KB

    MD5

    9f7ed98e81d0fe949e838d96a3082d9d

    SHA1

    51f2641ef388b4d7124299a8fe67dd28b97d7c2b

    SHA256

    c8e060a2fe9fbb9ab914cff8c292fedb3d6181626765216168fbe6894ad2f76d

    SHA512

    3d3333b5cc5acef6d5ec8add76be23c028c167c09e50310f2972380871c730541d6500249f6d1b140b1e2c962d22b5c8d5a1ed034ef9f856b2dd1d73107dabcc

  • C:\Users\Admin\AppData\Local\Temp\tmp699D.tmp

    Filesize

    1KB

    MD5

    0a24db62cb5b84309c4803346caaa25d

    SHA1

    67660778f61bb44168c33ed3fe56ed86cf9583e8

    SHA256

    38d38647af394a04ee6add9f05c43244f04e64a6b96257f4b241a5038efa82df

    SHA512

    d25d9df063f44595d5e0bf890755bd387655131ff369eeedf3d11ffcc6202ca4455bbb33a8a926dd06839cbd1ddec3d06809b3c66a82c6518aa14beaa469a548

  • C:\Users\Admin\AppData\Roaming\Zlfac\vogitq.url

    Filesize

    168B

    MD5

    0e0e06be7802dc0532e72c3a39eedcf1

    SHA1

    e144f3d45ef0b7f6ba8fc5f5a39995a38a1d08ed

    SHA256

    a835dd3f043f4e9b0a599051d7aa76766fec85e5a9dc7a861bb4ec298f52776f

    SHA512

    bef9054f899c022d63b8ea2ea1a3df60cf2e6ced45d95576aa92334a980df7c6e9b81c2aa9d79f86a50a0189b806928cef9d867f2d24a7f6895e09a844a12ad7

  • \Users\Admin\AppData\Roaming\Zlfac\Uulebo.exe

    Filesize

    568KB

    MD5

    2f159c22c90f5cbddfdba3455f2aa94e

    SHA1

    57c7fb9804ba3fa064fac0a78cb5cfeb7b9d10c2

    SHA256

    988d2c306698b469a52c807a28fbd030868b108458ed2b72e6f776f2ed933703

    SHA512

    af31a2f9a5c6f7ce08429a6047b1d3ac3362b302b4b684c91ea3057cd8e4c77eb2e70901d1e1269181999ffe76e85a3b182751ad369d212522f2e18acaf64bb4

  • \Users\Admin\AppData\Roaming\bin.exe

    Filesize

    179KB

    MD5

    f67b3e1d9001156166a3582389d86665

    SHA1

    73314346401736dde611eca255d20e18d6eae31c

    SHA256

    d58395192addd2168a59f5a907593453de48b79f180b98cad4748bb3df6c8aa3

    SHA512

    127690b3626582a07592155c617b8271ee1c1ea8a3e81fe56be3dc604b03e91cb310de7cea71c6ce2b062c84591294f529c06b5c58492fd815cae1fe5486112a

  • memory/576-49-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/576-62-0x0000000000580000-0x000000000058A000-memory.dmp

    Filesize

    40KB

  • memory/576-63-0x0000000000590000-0x00000000005AE000-memory.dmp

    Filesize

    120KB

  • memory/576-25-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/576-51-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/576-42-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/576-43-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/576-44-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/576-24-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/576-64-0x0000000000630000-0x000000000063A000-memory.dmp

    Filesize

    40KB

  • memory/576-23-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/1280-32-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1280-53-0x00000000003E0000-0x00000000003EA000-memory.dmp

    Filesize

    40KB

  • memory/1280-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1280-30-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1280-28-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1280-26-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1280-35-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1280-38-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/1280-40-0x0000000000400000-0x0000000000412000-memory.dmp

    Filesize

    72KB

  • memory/2212-4-0x0000000074E1E000-0x0000000074E1F000-memory.dmp

    Filesize

    4KB

  • memory/2212-5-0x0000000074E10000-0x00000000754FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2212-1-0x00000000003F0000-0x0000000000484000-memory.dmp

    Filesize

    592KB

  • memory/2212-2-0x0000000074E10000-0x00000000754FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2212-0-0x0000000074E1E000-0x0000000074E1F000-memory.dmp

    Filesize

    4KB

  • memory/2212-13-0x0000000074E10000-0x00000000754FE000-memory.dmp

    Filesize

    6.9MB

  • memory/2212-3-0x0000000000500000-0x000000000050A000-memory.dmp

    Filesize

    40KB

  • memory/2212-6-0x0000000000610000-0x0000000000646000-memory.dmp

    Filesize

    216KB

  • memory/2384-18-0x0000000074D90000-0x000000007547E000-memory.dmp

    Filesize

    6.9MB

  • memory/2384-19-0x0000000074D90000-0x000000007547E000-memory.dmp

    Filesize

    6.9MB

  • memory/2384-15-0x0000000074D90000-0x000000007547E000-memory.dmp

    Filesize

    6.9MB

  • memory/2384-16-0x0000000000230000-0x00000000002C4000-memory.dmp

    Filesize

    592KB

  • memory/2384-17-0x0000000074D90000-0x000000007547E000-memory.dmp

    Filesize

    6.9MB

  • memory/2608-65-0x0000000000F40000-0x0000000000F5A000-memory.dmp

    Filesize

    104KB