Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a2bd3470a07392c…

MALICIOUS

PDF

81.1 KB Created: 2021-03-22 18:25:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ab3538c5fbb2f06bab61d76573e216ab SHA-1: b1133241da1cf1f34f8d65add434f0dad479c86d SHA-256: 7a2bd3470a07392c26593628035f89d327136a334be1ec4e9221c4d7ce9dda5a
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The sample was identified as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution attempt. It functions as a link farm, directing users to external URLs, one of which is `https://lozipotod.ru/123?utm_term=crash+course+world+history+6+worksheet`. The PDF structure and embedded URIs suggest it's designed to exploit user interaction by presenting seemingly legitimate content that leads to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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 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://lozipotod.ru/123?utm_term=crash+course+world+history+6+worksheet PDF link annotation
    • https://s3.amazonaws.com/jebokizez/phases_of_the_moon_worksheet_grade_2.pdfIn PDF document text
    • https://cdn.sqhk.co/sejixikerut/qUlgc9V/camera_raw_6._7_cs5.pdfIn PDF document text
    • https://s3.amazonaws.com/jitimesolagun/tea_tv_ad_free_apk_for_android.pdfIn PDF document text
    • https://bezatawe.weebly.com/uploads/1/3/0/9/130968967/tovazaroziwozod.pdfIn PDF document text
    • https://cdn.sqhk.co/tusufawenu/ftHjekv/devil_ninja_2_mission_mod_apk.pdfIn PDF document text
    • https://defiduzumuxel.weebly.com/uploads/1/3/2/6/132682342/zanezisaxul.pdfIn PDF document text
    • https://giruveme.weebly.com/uploads/1/3/4/4/134480937/lizivorowejed.pdfIn PDF document text
    • https://cdn.sqhk.co/piwuzuberaze/hgSjiif/dog_run_pet_dog_simulator_download.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/79899767881.pdfIn PDF document text
    • https://niwubeleligijoz.weebly.com/uploads/1/3/4/7/134764474/be307e6ee08cac.pdfIn PDF document text
    • https://salobomuxalevi.weebly.com/uploads/1/3/1/0/131070078/folonaguvaju.pdfIn PDF document text
    • http://julubavixukab.66ghz.com/zifatuxoje.pdfIn PDF document text
    • https://kexufufebir.weebly.com/uploads/1/3/2/8/132814170/2244372.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/casal_modao_michel_telo.pdfIn PDF document text
    • http://zumikavu.22web.org/runecrafting_guide_osrs_f2p.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/39e8408b-b670-4572-a741-6c91e73d7072/verifone_topaz_commander_customer_service.pdfIn PDF document text
    • http://faloboxodutak.epizy.com/f_a_x_ka_full_form.pdfIn PDF document text
    • http://midekudaxigol.rf.gd/vapofogolebulefozako.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/14eeafcf-0f52-4c57-94a9-361d40e0eef1/mason_county_local_rules.pdfIn PDF document text
    • http://rovuwuruw.epizy.com/barbing_tutorial.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef7ddfcd-1042-4a8b-a7f9-d38418c355db/when_jesus_was_a_little_child.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_off0000fded.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDED 5344 bytes
SHA-256: 7a66fa1843fc33556a5c880b011d62db5385bb13461072816992a9725d4951b2
font_01_sfnt_off00011027.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11027 10956 bytes
SHA-256: 30d5bb173f2d87259f37e93f457900fe27ce233b39783b3f8af9b47177f7395e