Malicious PDF — malware analysis report

Static analysis result for SHA-256 950e4305b267d24d…

MALICIOUS

PDF

43.1 KB Created: 2020-08-17 16:08:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 21c2b5acacd62010a445c2322233f250 SHA-1: 194a5ed2856c1b1f9d5984dd6e1491c0cb6a1264 SHA-256: 950e4305b267d24dc88cde99b8a28ded2ad3b25fe88eebad85526dec7da181fa
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The embedded URL 'https://ttraff.cc/pify?keyword=mga+sawikain+worksheets' is a key indicator of this malicious redirection. The document body, though partially corrupted, contains text related to 'Mga sawikain worksheets', suggesting a lure to disguise the malicious intent. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://ttraff.cc/pify?keyword=mga+sawikain+worksheets In PDF document text
    • http://gimisigi.minoguefurniture.com/uploads/1/3/1/8/131857315/lumivixik_liwibiwifoz_kasufubajara_fisurejaj.pdfIn PDF document text
    • http://files.krwoodworkings.com/uploads/1/3/1/8/131871894/1591208.pdfIn PDF document text
    • http://files.atticrodentbarriersystemsonline.com/uploads/1/3/0/8/130814070/xulif-mibarasawa-domedibofuxira.pdfIn PDF document text
    • http://files.leslieopatril.ca/uploads/1/3/0/7/130775249/gipokejem_fajol_pumunusoripow_xidexatuxas.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6055/9013/files/seraw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7223/3380/files/tojone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4136/4890/files/66527277942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9183/6566/files/18190565609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8145/8069/files/kikikopedulusekuwibane.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/955589589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5335/0040/files/barreras_arancelarias_y_no_arancelarias_en_mexico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2195/1391/files/musimewoforile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2349/0457/files/zumarun.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005d9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D9C 4864 bytes
SHA-256: b7dc63327427c074901705faf7a4c5b261cad73576e7229bc57fc1675a6404bf
font_01_sfnt_off00006e2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E2E 10540 bytes
SHA-256: 2a507a409bff723602cbeb610e47c3b7bc12748bdf4e1a6e6f29a9d60fdfeb36
font_02_sfnt_off000091fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91FE 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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