Malicious PDF — malware analysis report

Static analysis result for SHA-256 b17643032926853d…

MALICIOUS

PDF

51.0 KB Created: 2020-08-19 10:07:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 52c987fed5b4ad97237a538206151d34 SHA-1: 35a20a2083ab44cd64c82630dd48012bba9d248f SHA-256: b17643032926853dc99472499e29caa176523a19a8b2f4a7c9dd6d15d6e35e61
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link and a link farm, indicating a likely attempt to redirect users to malicious content or engage in SEO manipulation. The document body contains text related to movie songs and metadata indicating it was generated by wkhtmltopdf, suggesting a lure document. The presence of numerous external links, including one pointing to a known malicious redirector, strongly suggests a malicious intent, possibly for phishing or malware distribution.

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.com/pify?keyword=balupu+movie+audio+songs++naa+songs In PDF document text
    • http://lokofome.brigantinemedia.com/uploads/1/3/0/8/130873995/dugelexulalo-watawusonogof.pdfIn PDF document text
    • http://files.manchesterartistsbookfair.com/uploads/1/3/0/9/130969220/silolidupalegeduke.pdfIn PDF document text
    • http://fefodazo.meadowsoflaurelwood.com/uploads/1/3/2/7/132740720/virulivevinobedirix.pdfIn PDF document text
    • http://files.madcityparagliding.com/uploads/1/3/2/6/132681438/5167883.pdfIn PDF document text
    • http://nifevanug.lancerlibrary.org/uploads/1/3/2/8/132816042/fisenazewirodu.pdfIn PDF document text
    • http:///\/yolyrics.in\/details.php?id=20080,video_url:,zoomit:0,premium_content:0,rest_lev:0,rest_msg_free:null,rest_msg_paid:null,_e:0,aes_enabled:1,aet:1,release_date:JunIn 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/1/0438/4443/6128/files/nixomekejikozopifox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6689/2186/files/adobe_acrobat_reader_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5243/3557/files/65150118450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6910/2485/files/35278392634.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1501/2511/files/vufef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5506/2938/files/buginijamalisebivuwanof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8603/5621/files/ibps_clerk_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32773531818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1978/6645/files/30326559336.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9503/8877/files/acorus_calamus_medicinal_uses.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0684/4315/files/nojejufusenuzewesirisi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6337/7048/files/40495164584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2684/9700/files/jesezupogabuzapalitus.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_off00007e17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E17 5292 bytes
SHA-256: a29d1f2168b83f0c0d8c16761c14afba607bddb2a6406ce1bf1ed54e4e9223d1
font_01_sfnt_off00009010.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9010 15072 bytes
SHA-256: 32a479c6801472ef0ebb2858ec7785dc9739111ce960ea71ab17fea20d9806b0