Malicious PDF — malware analysis report

Static analysis result for SHA-256 045e59ddf4c73bb0…

MALICIOUS

PDF

50.3 KB Created: 2020-08-24 14:49:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 75f032440a9c273b44ebbbf850430e82 SHA-1: bc9523992f87d16c3c3f9c8f9593cf3f0f349c36 SHA-256: 045e59ddf4c73bb0d9de7aba0ecd92e42d93c91ffad5c75ed07ae6f291334ae6
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains the same lure text and URLs, suggesting an attempt to drive traffic to malicious sites. The ML classifier also strongly indicated maliciousness.

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=allahabad+kondapuram+movie+songs++in+telugu In PDF document text
    • http://numadavo.gaprx340b.com/uploads/1/3/0/8/130814674/pusefujejuvabe-nalokaz-xabefojovibumuj.pdfIn PDF document text
    • http://files.duazamzam.com/uploads/1/3/1/8/131856072/fibofegoxusuk_xibinakinuj_limad.pdfIn PDF document text
    • http://files.sammie-smith.com/uploads/1/3/1/4/131483830/lagumurajek-bikamofidor-kekozamimal-pariwa.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/1/0462/7041/4999/files/78344126171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2943/8370/files/bamokufomobipapatufoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0082/2934/files/leturadoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4864/0418/files/veworagit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2293/4435/files/34875207767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2287/5813/files/1011316464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5046/6464/files/patofisiologi_blighted_ovum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7323/9195/files/31090285146.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5905/2706/files/lebasofejagew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5453/8656/files/wabisisofub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5478/3893/files/50012084899.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1465/1038/files/35432868883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9503/8877/files/resozamoxezot.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65BC 3064 bytes
SHA-256: 9d2d2c82f2bb2f9ef8b6f11fc1e657c0286adcd9f83ecd5893ea16642b73b864
font_01_sfnt_off00007087.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7087 5628 bytes
SHA-256: ddecd3de00b42e2acb1060113f80a7476eb3550de84709c2b8a22d037401b535
font_02_sfnt_off00008374.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8374 10180 bytes
SHA-256: 6ff6e37bcaf13361adf51198379f52ec90c95d4a9e9f736a8bf8714e05845462
font_03_sfnt_off0000a68e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA68E 16096 bytes
SHA-256: 301fb2f14aa1e9a5cf8540ebf40f17e8311eb9ba756e1d76589e408feb703965