Malicious PDF — malware analysis report

Static analysis result for SHA-256 027bfb8e659c7c05…

MALICIOUS

PDF

34.4 KB Created: 2020-08-23 07:15:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0d1ef054fa9fc2860ca297c030f244e4 SHA-1: 43dc04cd350084ba7bbbf719b1d45883b393d885 SHA-256: 027bfb8e659c7c052d8ad5b69a7e58d7bb093b434ef2b6526a14594673655a58
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed to appear as legitimate downloads. The primary redirector URL, https://ttraff.ru/pify?keyword=anggur+merah+2+trio+elexis, is directly linked to malicious activity. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest an attempt to redirect the user to malicious content, likely for phishing or malware delivery.

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=anggur+merah+2+trio+elexis In PDF document text
    • http://tafiw.carpetcleaningbyjeff.com/uploads/1/3/1/3/131380591/5995846.pdfIn PDF document text
    • http://files.artistmikemeermann.com/uploads/1/3/2/7/132740399/56e2ee8fe8cce9.pdfIn PDF document text
    • http://files.mingocarecbd.com/uploads/1/3/0/7/130740118/2810638.pdfIn PDF document text
    • http://pikilufof.hhsclassof1979.com/uploads/1/3/0/8/130814229/lumemabegu.pdfIn PDF document text
    • http://wujusap.politicalethnographyproject.org/uploads/1/3/1/3/131380183/pesovajoxowuwe.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/1/0436/0008/5149/files/38520364354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0456/4651/2295/files/82223118199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5932/8662/files/assistant_brand_manager_interview_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9058/3458/files/resident_evil_5_treasures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6593/3985/files/30196563220.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4145/5261/files/vuterutogeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9596/4328/files/76741451283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3747/4466/files/food_and_beverage_cost_control_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9385/9231/files/interview_questions_and_answers_tell_me_about_yourself.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5093/3143/files/lol_cowsep_master_yi_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/zefizazutisuruxobu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4982/9023/files/zepawulapelaxuga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7992/4902/files/kifozigizul.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A4F 5288 bytes
SHA-256: 0e4c91f38b975cc2ccbabc4e41eac4f371efb6ef3ebb2da364f2977e6da262b6
font_01_sfnt_off00005c20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C20 9508 bytes
SHA-256: a8e46dbdd7f574a330ccb934f77a7d54a6b339e087c495d822ce47c4e107a24e