Malicious PDF — malware analysis report

Static analysis result for SHA-256 2182339406f57845…

MALICIOUS

PDF

71.4 KB Created: 2020-08-25 04:58:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6fa25d1b197ec821ed7eafe8ab16bd6b SHA-1: 7b475ff78b94726a8f6c873a6ec42d6aa71d774e SHA-256: 2182339406f57845b2be6355ef1950469517a346660a73ebc83ef02f419545bd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to ttraff.ru. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on cdn.shopify.com, suggesting an attempt to obscure the final malicious destination. The document body, though heavily obfuscated, contains the malicious URL, reinforcing the redirection attempt.

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=recalcitrant+compounds+pdf In PDF document text
    • http://nikobu.brianmmills.com/uploads/1/3/2/6/132682076/gawinadakag.pdfIn PDF document text
    • http://files.sacredive.com/uploads/1/3/1/6/131637081/jazomosepokesav.pdfIn PDF document text
    • http://files.thefibreshop.com/uploads/1/3/1/3/131382841/zadugas-rilaxejalibome-kudonozipobibap-saluwodukosefom.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/1/0430/9617/8845/files/41951825077.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3247/6838/files/acquired_aplastic_anemia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8977/2187/files/leatherworker_leveling_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2765/9932/files/the_aeneid_latin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2027/1272/files/netflix_app_windows_7_laptop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8619/9461/files/lower_back_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7404/4579/files/ketow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2204/9695/files/faketalafojolimafaguro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/bjt_transistor_as_a_switch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0958/4802/files/brahms_hungarian_dance_piano_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1778/9862/files/55491721721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2486/5685/files/stairs_bunk_bed_plans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7757/4551/files/82586316777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1222/6200/files/management_of_type_2_diabetes_mellitus.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE49 5192 bytes
SHA-256: 78eb51c8e96e7b4953e87d5f4de62658583e8cad4cab3de2d948fed7d861d6ea
font_01_sfnt_off0000dfcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFCC 10000 bytes
SHA-256: 3ee76f58e6ed33f792f1d75615a2c62f923eea83879154ffed2b860ee3af43fc
font_02_sfnt_off00010216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10216 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c