Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e727874914f96de…

MALICIOUS

PDF

75.0 KB Created: 2021-06-10 08:24:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-13
MD5: dbf174f4e945ff0892a9c02f359ec4f9 SHA-1: 143cf22e6896cc0cea15458376fed8a0b05568fb SHA-256: 6e727874914f96de1783e66f74f987911be0cb8855f2e394669a0334a1643596
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous links, many pointing to disposable hosting, and one prominent URL (smidgel.ru) associated with a phishing lure related to game modifications. ClamAV and ML classifiers strongly indicate maliciousness, consistent with a phishing or credential harvesting attempt.

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://smidgel.ru/pbw?utm_term=dynamic+lighting+minecraft+pe PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379483/normal_6057ded5356cf.pdfIn PDF document text
    • https://nuvikivubadubud.weebly.com/uploads/1/3/5/2/135299037/9111bb3c1f6ca1f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471941/normal_6041bf7fde371.pdfIn PDF document text
    • https://gufevetiginuz.weebly.com/uploads/1/3/4/6/134626386/nakulapudovefu.pdfIn PDF document text
    • https://gunarolapikomi.weebly.com/uploads/1/3/4/4/134442839/tiduwetili.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382976/normal_6045e95cb1344.pdfIn PDF document text
    • https://mobinefoju.weebly.com/uploads/1/3/1/3/131398425/kufunopigare_vamibulopot_polanez.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381105/normal_600b1f4642a2d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384484/normal_60be5b2de7e13.pdfIn PDF document text
    • https://nozifudofo.weebly.com/uploads/1/3/2/6/132681081/bavunuzudif.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/c2b77c04-a5c7-4269-ad30-259d537762ed/cheat_engine_pubg_mobile_ios.pdfIn PDF document text
    • http://zekodunu.pbworks.com/w/file/fetch/144913827/miles_morales_spiderman_book.pdfIn PDF document text
    • http://jijagenaneke.pbworks.com/w/file/fetch/144451086/eagles_hotel_california_lyrics.pdfIn PDF document text
    • http://kirozatijawu.pbworks.com/w/file/fetch/144511872/how_to_activate_function_keys_without_fn.pdfIn PDF document text
    • http://jabevexizoj.pbworks.com/f/gonaru.pdfIn PDF document text
    • http://mugobug.pbworks.com/w/file/fetch/144949320/5979701578.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cf166360-15d6-4a15-bf05-bb9f99578d8d/wuraleje.pdfIn PDF document text
    • http://malamojozag.pbworks.com/w/file/fetch/144578433/gadavozoxemogemajorefa.pdfIn PDF document text
    • http://mogulazedub.pbworks.com/w/file/fetch/144497583/zamisegir.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b2d17fb-01ac-42ba-bab8-c0dae953a519/examples_of_how_to_resolve_conflict_in_the_workplace.pdfIn PDF document text
    • http://jumogitakos.pbworks.com/f/wikij.pdfIn PDF document text
    • http://gonumutat.pbworks.com/w/file/fetch/144508995/sadixugubanulakelodipab.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e86f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE86F 5352 bytes
SHA-256: 089ba93195071efce1e1025f1746a07fabf3f7b362fe27c0eeb375bfb5faaa6a
font_01_sfnt_off0000fa8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA8E 10608 bytes
SHA-256: c710cd00ec29f7cb0e139b762c32c1683036c858e2c08a832bfe30248dac7dd4

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