Malicious PDF — malware analysis report

Static analysis result for SHA-256 282ff9308ef8f50c…

MALICIOUS

PDF

40.6 KB Created: 2020-08-19 02:38:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b4afc8ed2dd89fca865705d009f5b717 SHA-1: 31994c56117295071a974c27afeed9c46b54eae7 SHA-256: 282ff9308ef8f50c3640bdb4b71679b9cc87e19588ec26ea6aee61eba8cd8138
194 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a link farm. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=imci+latest+guidelines+pdf', which is identified as a malicious redirector. The presence of numerous embedded links, many pointing to potentially compromised or malicious domains, strongly suggests an intent to lure users to malicious sites. No scripts were extracted from this sample.

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.ru/pify?keyword=imci+latest+guidelines+pdf In PDF document text
    • http://files.originalsexyslave.com/uploads/1/3/0/9/130969004/ca2abe.pdfIn PDF document text
    • http://vezol.hollyhmiddouche.com/uploads/1/3/0/7/130776738/b6f02a1f673.pdfIn PDF document text
    • http://files.jhunterdata.com/uploads/1/3/1/4/131453645/tijunugakelidufe.pdfIn PDF document text
    • http://taziduw.modicash.nl/uploads/1/3/0/7/130738870/6835161.pdfIn PDF document text
    • http://files.newpentecost.net/uploads/1/3/0/7/130776131/poworanevu.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/1/0436/1053/8147/files/sound_energy_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3309/1480/files/45238625765.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1102/2756/files/93367494659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0217/4374/files/31703845972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1042/4993/files/10429531101.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7016/7967/files/cricut_explore_air_2_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6627/7534/files/apple_airport_time_capsule_3tb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gibowutobarifokegibig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6891/5863/files/falixoxiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7461/6473/files/author_s_purpose_activities.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/97221050886.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F7 5316 bytes
SHA-256: 8f99e49485f716e56506b96911ce35c29b05249f5ceda40ce0686811a79b9360
font_01_sfnt_off000072f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72F4 10096 bytes
SHA-256: 67e38f9034cc195aa5a0737ad9ebd546e0ee60223109418679b20a3bcf507253

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