Malicious PDF — malware analysis report

Static analysis result for SHA-256 916298b1706044aa…

MALICIOUS

PDF

68.0 KB Created: 2020-08-07 07:08:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b088d0dc476ca94b367add591118f79d SHA-1: 2eb04f6cfd41921c8615b7c272193e0aafae71c2 SHA-256: 916298b1706044aa80f5212ad9cd15b6c56504a6145c259932c4559be76da227
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.cc, which is likely intended to lead the user to a malicious site. The document also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. No scripts were extracted from this sample, but the presence of malicious redirector links and the ML classifier's high confidence indicate a malicious intent to redirect the user to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=basic+symbolic+logic+pdf In PDF document text
    • http://files.empstudio.nl/uploads/1/3/0/8/130814283/giresusopebubune.pdfIn PDF document text
    • http://files.deanmelbourne.com/uploads/1/3/1/1/131164231/40fd612ea.pdfIn PDF document text
    • http://files.lindyjames-christenson.com/uploads/1/3/1/3/131379612/3953267.pdfIn PDF document text
    • http://files.juliehoy.com/uploads/1/3/1/8/131857920/zitadatu.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/1/0434/0298/5622/files/37597666338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1050/6404/files/55794186724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4276/5976/files/80115281767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/55345792549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/rasusok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9323/7665/files/dimomaxogefufofazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9222/9787/files/xosigosijasig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3699/9842/files/bumof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8354/6267/files/nalarizoparoxopopaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3025/7568/files/panasonic_kx-_tga931t.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8020/2905/files/morphology_and_cytology_of_bacteria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2476/7400/files/set_up_a_good_discord_server.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6305/0394/files/ash_wednesday_summary.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D8C 6856 bytes
SHA-256: fd5440f1f4ebd54dd290775a513d6667410e5d7dad2da1c0f13fb7f66398bdbe
font_01_sfnt_off00007ed1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ED1 5668 bytes
SHA-256: 591cb21b2cc033027349082ef95aa1b0d587845ced3d16c33514b53cd2289a0f
font_02_sfnt_off000091d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91D7 6296 bytes
SHA-256: 999ffa05984f2c565fe2260c24d0b52652f7a9afb2ab86b4a8a28133ef9bdd68
font_03_sfnt_off0000a13f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA13F 9052 bytes
SHA-256: a33cfea0447beef54ca26f039ad27dca03230628658043f1887535dd7b4095fa
font_04_sfnt_off0000b379.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB379 1696 bytes
SHA-256: ddba669fad34d3312a84ac495a0d3cbb140dfd4df243d41622f4821eff0174b7
font_05_sfnt_off0000bbf2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBF2 11540 bytes
SHA-256: a93699fc6dec8227cdf8abbf4dbd45744e828c793ddeced63e491ef53028c672
font_06_sfnt_off0000e315.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE315 18636 bytes
SHA-256: d619a0f13cab24f362f1457a2e63259530c362f6dc2f99bb36981149f3ee2984

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