Malicious PDF — malware analysis report

Static analysis result for SHA-256 6402bee02920762e…

MALICIOUS

PDF

67.8 KB Created: 2021-03-11 08:32:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 8be56033612b46e79eaff9eeef4c414c SHA-1: 25e99451199857341c064e2747bca602e132e44e SHA-256: 6402bee02920762ef842f19e98a0c1c5d12af4c24f101f585581259de0610314
126 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, with one specifically pointing to 'fokemale.ru/award', suggesting a lure for phishing or malware delivery. The heuristic 'ML_NYX_PDF_MALICIOUS' and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a distorted attempt to mimic search result content, reinforcing the lure pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://fokemale.ru/award?keyword=ashokan+farewell+guitar+tab+pdf PDF link annotation
    • https://cdn.sqhk.co/mopofosak/Gvrheiz/nivoxazugosakekepari.pdfIn PDF document text
    • http://50offshop.pro/risewefonepufisalexs.pdfIn PDF document text
    • http://idealica-italiaofficial.site/opentyrian_mod_apkie6r9.pdfIn PDF document text
    • https://cdn.sqhk.co/vefoxewijuja/0icighi/dipejizixowotisoxumajo.pdfIn PDF document text
    • http://forexgeeks.net/paint_blaster_game08prn.pdfIn PDF document text
    • http://qupieasy.online/how_to_stop_my_call_forwardingrk2w5.pdfIn PDF document text
    • http://instacopyrighthelpteam.com/biology_ncert_textbook_class_11io7rv.pdfIn PDF document text
    • http://civiliscmq.online/stand_by_me_movie_pg_rating1vye8.pdfIn PDF document text
    • http://fitnesspack.net/fly_tying_station_diydy37q.pdfIn PDF document text
    • http://lnstagramcentre.net/persuasive_essay_outline_templatevcy89.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://8b2103c5-345b-48fd-98e3-f19c90c4efd0.filesusr.com/ugd/0e2875_b9372d410cc146c7abb9776542292fec.pdf?index=trueIn PDF document text
    • https://bb55feb6-a0c4-48ae-8f72-aea2c45912f8.filesusr.com/ugd/b9801a_623d60dfc33f458f86c623f6595d65f7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/legenapi/gixuvelusija.pdfIn PDF document text
    • https://f06ae689-34e6-4fd9-b749-a5985747e370.filesusr.com/ugd/4117a9_3d7ee5dfc6454119a135c66a0ddcbfe8.pdf?index=trueIn PDF document text
    • https://36622f5a-5a1b-41a5-aa98-965156e47ac2.filesusr.com/ugd/804ff6_0d44fc815c9f4e30a106a5945f0b3793.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/pukiza/zasomadavufofo.pdfIn PDF document text
    • https://s3.amazonaws.com/wuzalugiseto/9889380678.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_off0000cbec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBEC 5588 bytes
SHA-256: 9e31f1d893972d624968b0f00f7dcd41dc1d2456fd6593fea01ef1777c85e753
font_01_sfnt_off0000def5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEF5 10332 bytes
SHA-256: 630870d10cea7b158c1a42ea550f39f4a5c6a5edc8001a724a8ecf504b7e7460

Open this report in the interactive analyzer, or submit your own file for analysis.