Malicious PDF — malware analysis report

Static analysis result for SHA-256 e711fb8557f0d204…

MALICIOUS

PDF

39.0 KB Created: 2020-08-14 11:40:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4ff43fda0483f0187e43a51f1a99dd79 SHA-1: e84be554b8d3b6e1185c767aeb03ab7f49ebb253 SHA-256: e711fb8557f0d204c5356c3f4c3fec5d0b4ea72c3febab620246881e3857fe8b
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The document also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO abuse tactic. The presence of a 'download button' lure further supports a malicious intent to redirect the user to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=cymera+terbaru+apk In PDF document text
    • http://files.jupitermoonjewellery.com/uploads/1/3/0/9/130969818/vuninuwuxubekag_tereveferifosem.pdfIn PDF document text
    • http://witasatu.sportzlifeone.com/uploads/1/3/0/8/130814124/lalurikidenepa.pdfIn PDF document text
    • http://files.psichicpp.com/uploads/1/3/1/8/131871585/vinazuxuje.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1878/7736/files/life_history_of_aggression_questionnaire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/vuzinujawufitavuzuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1478/1088/files/amoral_familism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/larabobed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2723/2918/files/ravigejalox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0392/6939/files/mumulusuwipeki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9558/8005/files/91977649182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1263/6322/files/wofamufegoxodorufus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4167/6694/files/webet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4978/8327/files/scrambled_sentences_exercises_for_beginners.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
🗂 Part of campaign: psichicpp.com 3 samples

Related samples 4

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_off00005d17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D17 4968 bytes
SHA-256: e3cb951a07101c537f03373046aed8afc6407b28d84b82cb390a7080f89fa461
font_01_sfnt_off00006de5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE5 9812 bytes
SHA-256: 8b978b148c5bfa82e8325f42948af162d508c8a951c921411ccf655078a5c443

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