Malicious PDF — malware analysis report

Static analysis result for SHA-256 e87094d207894914…

MALICIOUS

PDF

41.7 KB Created: 2020-08-20 23:12:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 86c1871ac603d0a9ad76fc742b908f53 SHA-1: ecf52bb297fbd488d938f0e8e522b5d949552ddf SHA-256: e87094d207894914d19c850672df0e51f103e09a66e1ca0089a18c98c0b68274
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a lure related to 'Android phone version 4.1' and embeds numerous external links, including a critical redirector link to 'ttraff.ru'. This suggests a phishing or scam attempt to redirect users to malicious infrastructure. The presence of a callback lure heuristic further supports a phishing or tech-support scam pretext. No scripts were extracted from this sample, limiting the ability to determine further payload delivery or persistence mechanisms.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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.ru/pify?keyword=android+phone+version+4.+1 In PDF document text
    • http://javazer.votebrizzi.com/uploads/1/3/1/3/131380550/zifibeforaf.pdfIn PDF document text
    • http://ranixegos.thatonecouple.net/uploads/1/3/1/6/131606289/dawixojojilufis_ruduludo_xotuzodutoxasu.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/1/0439/0728/5147/files/solimavevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/alkylation_and_acylation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5114/7676/files/62617117366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7152/7319/files/81123882673.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6596/6754/files/vired.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3848/1320/files/61886161689.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1075/2663/files/mining_waste_disposal_methods.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5976/4634/files/38019375543.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1561/8203/files/putuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8086/6209/files/kemorilolidamazufemamexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8894/5064/files/canon_elph_180_user_manual.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 2

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_off0000656a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x656A 5024 bytes
SHA-256: c371cf9a63b4527624bbb726f830e3ac381a0c153c6fba8dd166f3dafd7b09bf
font_01_sfnt_off0000768f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x768F 10536 bytes
SHA-256: 861dd6688c288daddfba8296693f5026a5abcbf713266b5f5ce8543e7858239b

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