Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a43b5bbec329150…

MALICIOUS

PDF

43.1 KB Created: 2020-08-03 06:26:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e05e95f2a01b76137c88ee37044e179b SHA-1: cc9d8b9f5dc66f44bd37241c5c33671e21d6783a SHA-256: 8a43b5bbec32915063a73e2b0f534818f790c367933daa9337292bdd41f03cf2
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a Ruger precision rifle manual. The document body, though heavily obfuscated, contains the URL and references to the manual. The presence of a link farm heuristic further suggests malicious intent to drive traffic to potentially harmful sites.

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.com/pify?keyword=ruger+precision+rifle+manual In PDF document text
    • http://files.wakingupwilder.com/uploads/1/3/0/7/130775014/2294534.pdfIn PDF document text
    • http://files.greatexpectationsknoxville.com/uploads/1/3/1/4/131438282/debiwaxorufoxeriti.pdfIn PDF document text
    • http://files.jimlaymusic.com/uploads/1/3/2/6/132695714/ximijejokusoguwuvi.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/1/0432/3321/4621/files/vegasowopunibubuzutidej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87294954422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0686/0187/files/rl_stine_goosebumps_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7018/5879/files/vufipepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8345/4872/files/44098334719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7529/7689/files/ash_like_snow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27055139941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9373/7118/files/www_memorex_com_lablemaker.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5805/2763/files/77830871247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4013/6601/files/bloodborne_chalice_dungeon_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bewasovenajuwawofitef.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_off0000684d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x684D 5340 bytes
SHA-256: 40e733bd3169f68bf402f596250312fb3a88aa7f97b6d7376db0147b56cfbf03
font_01_sfnt_off00007a74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A74 10596 bytes
SHA-256: 02a0cbf113ed41d316a8936b753d2a354a3da0256ffd4d27cfdb98c2a82c0ca0

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