Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b802616901a3473…

MALICIOUS

PDF

44.5 KB Created: 2020-08-23 01:32:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 993acd3bb665c99c08b36ec183abd6d8 SHA-1: e9153dee349e959bb4177b005d032971acc20b5e SHA-256: 2b802616901a34730e656a3cc76868013ab86362842fb2d79d626821ae7f273c
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a link farm and a malicious redirector, indicating an attempt to drive traffic to malicious infrastructure. The document body, though partially corrupted, suggests a lure related to 'Worcester Bosch company information', and the presence of a callback phishing lure heuristic further supports a social engineering attack. The primary malicious URL identified is ttraff.cc, which is known for redirecting to malicious sites.

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.
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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=worcester+bosch+company+information In PDF document text
    • http://files.miltlauenstein.com/uploads/1/3/0/9/130969545/vunozixisugino.pdfIn PDF document text
    • http://files.hbint.org/uploads/1/3/1/4/131406717/9639792.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/1/0437/1392/1175/files/98644953725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pujofupokutesigitugut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6059/9711/files/accidente_cerebrovascular_2020_colombia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2359/6711/files/91486218108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0010/3073/files/ziwefenesogebavuwise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2553/0005/files/sevisijebezejejidogoreze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7938/4731/files/election_commission_gujarat_voter_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9805/3535/files/calendar_of_holidays_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1234/1416/files/dowuxiresezix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0953/2323/files/automation_studio_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5226/1795/files/38721511795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/budexojimomamuzarumedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9440/0414/files/bubble_letter_font_free.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_off00006d95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D95 5480 bytes
SHA-256: 24ba463de4641aaa05668b344038e3021e1912a2bef470e1cbe2afd9b3d3d074
font_01_sfnt_off0000801e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x801E 10876 bytes
SHA-256: 20b872bd121bfb674764d056fee2892e041f4cf92d7692ccfba2b18e6bc4c4b9