Malicious PDF — malware analysis report

Static analysis result for SHA-256 445f347665e0c0ae…

MALICIOUS

PDF

76.8 KB Created: 2022-03-27 11:04:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: be8ac72bdfd89673dcddadca838b717a SHA-1: 665cfa32a76bc390e6f5bc84eed5797b837c6488 SHA-256: 445f347665e0c0ae9e4866ff2fe9ed717d1c5698ee97911de5b27f5e7bc98e93
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to attract traffic. The ClamAV detection and ML classifier indicate malicious intent, likely related to phishing or malware distribution. The embedded URL 'https://fecuq.co.za/YmrXLWy8?keyword=computer%20literacy%20books%20free%20download' further supports the lure of free content to entice users to click on malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

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://fecuq.co.za/YmrXLWy8?keyword=computer%20literacy%20books%20free%20download PDF link annotation
    • https://mowolonob.weebly.com/uploads/1/3/4/8/134874237/firisufikop.pdfIn PDF document text
    • https://wuwikofoxanep.weebly.com/uploads/1/3/1/4/131437976/nobare-kusutulalolara-xafawesubumoxa-nawezu.pdfIn PDF document text
    • https://wafebunutixiwi.weebly.com/uploads/1/3/4/1/134109037/8098794.pdfIn PDF document text
    • https://jujuguzifise.weebly.com/uploads/1/3/5/2/135299578/5024312.pdfIn PDF document text
    • https://xamegazu.weebly.com/uploads/1/3/4/4/134440804/konibuj_podos_fiwegadoko.pdfIn PDF document text
    • https://losivuli.weebly.com/uploads/1/4/1/2/141257427/kugisiparilofok.pdfIn PDF document text
    • https://mubajodopiwal.weebly.com/uploads/1/3/1/4/131454521/3987482.pdfIn PDF document text
    • https://xalidanazate.weebly.com/uploads/1/3/6/0/136082238/7ecfcce3623.pdfIn PDF document text
    • https://xolasugoduto.weebly.com/uploads/1/3/4/5/134592704/wulovuginufarutodos.pdfIn PDF document text
    • https://tiwovukixata.weebly.com/uploads/1/3/4/3/134314311/258642.pdfIn PDF document text
    • https://xinozujo.weebly.com/uploads/1/3/0/8/130874257/japikirumeginojiruk.pdfIn PDF document text
    • https://tusujowifavenag.weebly.com/uploads/1/3/1/4/131453847/7114c3513b6c.pdfIn PDF document text
    • https://feredelulewijun.weebly.com/uploads/1/3/2/6/132681536/8764635.pdfIn PDF document text
    • https://riginujer.weebly.com/uploads/1/3/2/6/132695799/tekuvofej-jagelonomifeva-zewegusov.pdfIn PDF document text
    • https://nobinetezo.weebly.com/uploads/1/3/0/9/130969761/dc4713b84993f.pdfIn PDF document text
    • https://zuwifitevekamug.weebly.com/uploads/1/3/3/9/133989089/donejumuse_zusiv.pdfIn PDF document text
    • https://rojogude.weebly.com/uploads/1/3/4/3/134396813/rakunafisoz.pdfIn PDF document text
    • https://posoxoniboje.weebly.com/uploads/1/3/4/7/134713430/9ff318ae6825e.pdfIn PDF document text
    • https://puxanakiwe.weebly.com/uploads/1/3/2/6/132695454/9599f5.pdfIn PDF document text
    • https://sotodivejezaze.weebly.com/uploads/1/3/4/3/134391575/geponufe.pdfIn PDF document text
    • https://botovare.weebly.com/uploads/1/4/1/2/141218015/fakilusuderobinamox.pdfIn PDF document text
    • https://wuvalarovujed.weebly.com/uploads/1/3/4/2/134266489/b7fc87f876aefa4.pdfIn PDF document text
    • https://dizeremugeb.weebly.com/uploads/1/3/4/2/134235396/4e33cb3121.pdfIn PDF document text
    • https://nufosizusom.weebly.com/uploads/1/3/4/6/134619592/jozarazowiwowur.pdfIn PDF document text
    • https://pufotawimudob.weebly.com/uploads/1/3/4/3/134380049/sifazeketofutokejijo.pdfIn PDF document text
    • https://kagunalikabogow.weebly.com/uploads/1/3/5/3/135350350/4049362.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5DA 11344 bytes
SHA-256: 362599a693a6245c7ca737a146cd5e278f17d7d83301d6c477f4a5ac82e65326
font_01_sfnt_off0000e066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE066 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0000f705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF705 17648 bytes
SHA-256: 574749754a1e7256197db3fa830b773dc2677b4be5d536bf81d3630680ec5a0f

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