Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd06520561005588…

MALICIOUS

PDF

53.3 KB Created: 2020-08-11 04:49:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b4d305661feb463fbb2fb146fc0343af SHA-1: 2d12ea26d9a0a8881a4f74793fa100086bd414ce SHA-256: bd065205610055887a156831eeab6a0018433b4c32527748e327f5eb1333a046
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at traff.ru. This suggests a phishing or redirection attack, likely aiming to lead the user to malicious content. The document body, though heavily obfuscated, contains the target 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=cartesian+product+of+sets+worksheet+pdf In PDF document text
    • http://xetunu.carmonaconsulting.com/uploads/1/3/0/8/130814161/jifiwawajubupovugap.pdfIn PDF document text
    • http://files.carasoul.com/uploads/1/3/1/4/131437380/jelekajenit_zeberusob_pebisezofufu.pdfIn PDF document text
    • http://jewapuj.myworldsparkles.com/uploads/1/3/1/6/131637419/a72b92f4a2.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/1/0430/7265/1413/files/farumobipiba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0668/0484/files/argumentative_writing_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4462/5813/files/vomiwumudesepujileja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3815/4653/files/53300189001.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2505/5387/files/fawedafobimew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32852202686.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/6112/0919/files/public_policy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7554/3964/files/bsc_3rd_year_maths_question_paper_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3722/8188/files/blood_groups_and_diet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2655/3752/files/key_and_peele_draft_names.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000072b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72B4 5272 bytes
SHA-256: b0c18bf13ad0dff64049833c271915889a6df7feb78509ee417265ee74bef423
font_01_sfnt_off000084b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84B0 13528 bytes
SHA-256: 1320698ca65fd3cc44894710f8e3c65c16b44b73549166722ad6f09abadaa886
font_02_sfnt_off0000b067.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB067 16356 bytes
SHA-256: 38c352dce9f46c7b7db55bf3b4cc70b04bb1108340208a51ed4f51e2a04025bb