Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c5409445eb82ced…

MALICIOUS

PDF

68.9 KB Created: 2021-03-07 09:46:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: dc6607a2729275ebe4018463dbbbba22 SHA-1: 5e6080fe4f853542c597fe8267d0fb0243d53526 SHA-256: 0c5409445eb82cedc5e2cda5a25bc939ae3acfc0fa10146ee29826bc24ebc9aa
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://midufefew.ru/award?keyword=kindle+fire+hd7+4th+generation PDF link annotation
    • https://cdn.sqhk.co/vupapevixu/6hdfeid/merge_cube_2048_3d_merge_cube_game.pdfIn PDF document text
    • https://cdn.sqhk.co/defisepeniba/djcCdIL/messenger_not_downloading_photos_on_wifi.pdfIn PDF document text
    • https://ponatuxo.weebly.com/uploads/1/3/4/5/134596183/1716434.pdfIn PDF document text
    • https://gipulafu.weebly.com/uploads/1/3/4/4/134442702/tewogulo.pdfIn PDF document text
    • https://cdn.sqhk.co/pemazekefise/jiM1giM/video_player_for_android_tv_box.pdfIn PDF document text
    • https://cdn.sqhk.co/negapevu/gcieheu/191096232.pdfIn PDF document text
    • https://pedumukelogo.weebly.com/uploads/1/3/0/9/130969284/milugonuradivojutubu.pdfIn PDF document text
    • https://mirajaxudedina.weebly.com/uploads/1/3/0/7/130775596/3200181.pdfIn PDF document text
    • https://kazusabetife.weebly.com/uploads/1/3/5/3/135318045/5db077f88fa5e0.pdfIn PDF document text
    • https://tenemetit.weebly.com/uploads/1/3/2/6/132696414/6851683.pdfIn PDF document text
    • https://cdn.sqhk.co/muvetowiripa/ckgjPKV/basketball_shooting_hoops_games.pdfIn PDF document text
    • http://minipipazenome.iblogger.org/memorize_new_testament_books_song.pdfIn PDF document text
    • https://lefitujeledezov.weebly.com/uploads/1/3/6/0/136028835/tifevudib_kevivan_bebox_texuf.pdfIn PDF document text
    • https://jajaleregonu.weebly.com/uploads/1/3/4/2/134235513/2641481.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tititogejeda.rf.gd/xosojaduvewanadifo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d72c430d-f8e7-4adb-9d67-aa0e6e20969d/bowamajenapubajeziba.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6dfc4d24-5d5c-4513-9ee5-ebb4b7f8ac63/navy_officer_fitrep_closing_bullets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5ec2c53-5cc4-4892-846f-9ad69fe818df/xedirorujuninesa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c399b1c-d546-40a6-b1b0-3dc14502e6c1/skyline_trailers_washington.pdfIn PDF document text
    • https://460eb545-5389-4aa9-9e78-d1074a8bca0c.filesusr.com/ugd/21a131_ffbcc2ad949d4d6392ea6a3acbe55739.pdf?index=trueIn PDF document text
    • http://rujidita.rf.gd/what_is_criterion.pdfIn PDF document text
    • http://xefavab.rf.gd/84012370651.pdfIn PDF document text
    • https://e3055f73-6236-423b-b810-4bc1a15f300f.filesusr.com/ugd/fa12d1_1aa17fe4921b401daad8dafc66fe7c13.pdf?index=trueIn PDF document text
    • http://rolaxaja.rf.gd/xisufafoluriwilikop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc6f3529-9ab8-4325-8fdc-d2cb18af83f0/texas_drivers_handbook_2015.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d05e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD05E 5128 bytes
SHA-256: 9e074acab8981da338c30d3a9373ab413879dd605727b37158e3eed197af6558
font_01_sfnt_off0000e1db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1DB 10592 bytes
SHA-256: 4a2d4c54e3847928c209b95dc90be1a57f673926118e9831818884ef1c750fa6