Malicious PDF — malware analysis report

Static analysis result for SHA-256 e91c8a27001b253b…

MALICIOUS

PDF

154.5 KB Created: 2020-08-23 20:06:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7a8414d622e3e38abbabcb151c8d56f2 SHA-1: 3ca3525bce9614c605633ae126e05c391e15901f SHA-256: e91c8a27001b253b8535b69c91be7fbc086f1ad4acc95a9b1dc807e3518231f3
134 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL. This indicates the primary function of the document is to redirect the user to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • 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.
  • 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=asco+guidelines+immunotherapy+toxicity In PDF document text
    • http://bukej.sharingprosperityusa.com/uploads/1/3/0/7/130775195/josezuvu_mupotubipata_rasusop_lokarizinizoj.pdfIn PDF document text
    • http://files.xtabentum.com/uploads/1/3/1/3/131380871/gabegiresa.pdfIn PDF document text
    • http://files.straitfromthefarm.com/uploads/1/3/0/7/130739415/a0338e97f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8375/9765/files/74706812481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6055/2085/files/female_pelvic_bone_anatomy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2742/9536/files/libom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6644/2406/files/ford_maverick_parts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/7183/6055/files/circuit_breaker_types.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/4013663950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4931/2665/files/kabeninesawepabidekiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6186/2810/files/bali_baby_elastic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1221/1359/files/porapuvunerojinus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1695/3751/files/lowodumezapemuwita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1870/6341/files/14512127999.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7437/9173/files/titubirugezosexoko.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 3

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002129c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2129C 5528 bytes
SHA-256: 522c6c5ef852f0d70b7a45b1c068f68a2db2fc9856416c2870ca656d66d75565
font_01_sfnt_off00022537.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22537 12960 bytes
SHA-256: 94863cca61978ad11d785958c1dbda31bc5bd21c4ca2376561619ac0d91ce9b8
font_02_sfnt_off00024e3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24E3C 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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