Malicious PDF — malware analysis report

Static analysis result for SHA-256 c49003f2f3b7d8a1…

MALICIOUS

PDF

75.1 KB Created: 2021-04-11 01:11:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c3c361fe275c2844373b42d723938e66 SHA-1: 3d9965b0ea1f7917dd228051c0439e34a8d58b98 SHA-256: c49003f2f3b7d8a19dd9660e78ba0f11d575a788c0e07d5a01a8d2f4250eb949
186 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many hosted on disposable domains, indicating a link farm designed to redirect users. The presence of a ClamAV detection for 'Pdf.Phishing.Trojan' and ML classifier flagging further supports malicious intent. While no scripts were explicitly extracted, the PDF structure and link farm behavior are consistent with phishing or malware distribution lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://resalured.ru/strik?utm_term=fantastic+fan+ultra+breeze+vent+cover+smoke PDF link annotation
    • https://tozuriko.weebly.com/uploads/1/3/1/4/131437247/bifepawelininer.pdfIn PDF document text
    • https://cdn.sqhk.co/makubeku/owLjaNQ/rivals_at_war_firefight_mod_apk_no_root.pdfIn PDF document text
    • https://cdn.sqhk.co/kuvuwisarov/ehfghjb/3990250306.pdfIn PDF document text
    • https://semuzotefol.weebly.com/uploads/1/3/1/4/131437619/pibigoba.pdfIn PDF document text
    • https://s3.amazonaws.com/watajive/69922380787.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371524/normal_602f7f3213c01.pdfIn PDF document text
    • https://cdn.sqhk.co/vemudumuxixu/hd78uji/mega_boost_jump_pack.pdfIn PDF document text
    • https://fuvedomuwipiw.weebly.com/uploads/1/3/1/6/131636935/6530da58.pdfIn PDF document text
    • https://zibitevurus.weebly.com/uploads/1/3/0/7/130776177/df55f158f5011.pdfIn PDF document text
    • http://boforobevuziko.mywebcommunity.org/suwuwopizidufitivo.pdfIn PDF document text
    • https://s3.amazonaws.com/kelukakeb/completing_the_square_formula_for_h_and_k.pdfIn PDF document text
    • http://manovina.mypressonline.com/10038579823.pdfIn PDF document text
    • https://cdn.sqhk.co/nigalasiline/oiegjQQ/dolisinegidavetobazu.pdfIn PDF document text
    • http://lumufurisazela.mywebcommunity.org/bawux.pdfIn PDF document text
    • https://s3.amazonaws.com/xufaxoferugod/zibizabopavanowovowize.pdfIn PDF document text
    • https://cdn.sqhk.co/kovezozeseg/V52nsib/78031788701.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466398/normal_5ff8087b025cd.pdfIn PDF document text
    • https://s3.amazonaws.com/fedufiporara/ruxolopuz.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/7e6bb1c7-1343-4086-8499-41a99e8820c5/80905858182.pdfIn PDF document text
    • http://tediguku.atwebpages.com/mipiruwezixamopetolitiwut.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d322000-4233-4eaf-a338-eab1ef2621c5/30310327758.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/705f3b04-f61f-405e-ba4c-744fcb5d2572/nixofosesebijib.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_off0000e641.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE641 5296 bytes
SHA-256: 3cf3e9fc72034777b5d09554d10233639c00ab41bd51adcd86a1e19f8a79c338
font_01_sfnt_off0000f847.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF847 11360 bytes
SHA-256: 998babc6c75115d0f8ec7019042c90b0a97360897c51046b26a2de4d4a69157d