Malicious PDF — malware analysis report

Static analysis result for SHA-256 a82b026fbc0c6178…

MALICIOUS

PDF

45.1 KB Created: 2020-08-07 09:10:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eb2cda1d85c83299eaa8d08ccebfe3bb SHA-1: f08ec63ac2cda7b8612d463c78883d58f4e4b671 SHA-256: a82b026fbc0c6178f6e7bbfadf00353eb37f3f090c188112eddbe37d49b211b3
254 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, which is characteristic of a link farm used for SEO poisoning. One of the primary links, 'https://ttraff.cc/pify?keyword=apigee+tutorial+for+beginners+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the intent is to lure users to click on the malicious link under the guise of a tutorial. The heuristic 'SE_SECRET_RECOVERY_LURE' indicates a potential attempt to solicit sensitive information, further supporting a phishing or scam-related attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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.cc/pify?keyword=apigee+tutorial+for+beginners+pdf In PDF document text
    • http://files.desirapesta.us/uploads/1/3/1/3/131381612/tupulomokitid.pdfIn PDF document text
    • http://files.gkamp.net/uploads/1/3/1/6/131636845/betezedetivale-wajegamejeputuk-kosodeposavakal.pdfIn PDF document text
    • http://jubaguvez.southernutahwaterpolo.com/uploads/1/3/1/3/131384635/8949516.pdfIn PDF document text
    • http://files.unparalleledtransformation.com/uploads/1/3/1/3/131383358/gukafamedimi.pdfIn PDF document text
    • http://files.teakslockservice.com/uploads/1/3/1/3/131384660/taxibigodotewer.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/1/0438/4745/0789/files/wii_drums_set.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2862/7099/files/tules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/mijeduwirarebajarabon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5386/6408/files/vumimajuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7368/1061/files/23356641425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9587/6003/files/giferepigiluze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5674/1022/files/playboy_mag_collection.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4414/1218/files/pan_africanism_in_south_africa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3175/6957/files/94010742507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/6189/8390/files/skinner_behaviorism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7519/0430/files/semavawig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/72290952875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4361/7959/files/mebuzukuxegupupop.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_off0000733d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x733D 5336 bytes
SHA-256: 61bb979d4d6d8514623ed513314cdc6e8b538f15367084412cee7681d9e7badd
font_01_sfnt_off0000856e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x856E 9968 bytes
SHA-256: 1a9ce317b764cdc3a23375e439d1c4bb251fb17e32cd75ea926efa7099049455