Malicious PDF — malware analysis report

Static analysis result for SHA-256 42197ec2cf57c9b6…

MALICIOUS

PDF

146.2 KB Created: 2020-08-23 22:16:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 851298fa581426f0afcbda98758e0a63 SHA-1: 50f1465006d62c03ed777fe0ff49c6138f43db5a SHA-256: 42197ec2cf57c9b6b915432130a2ad538d6e85756ca094a7a12f440e84ff3baa
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a significant portion pointing to Shopify domains, suggesting a link farm for SEO manipulation. Crucially, one of the embedded links directs to 'ttraff.cc', which is flagged as a malicious redirector. This indicates a likely attempt to lure users to a malicious destination through a deceptive link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.cc/pify?keyword=assamese+bihu+dance+free In PDF document text
    • http://mejepaf.thepayee.com/uploads/1/3/1/3/131384244/fonelejemarid.pdfIn PDF document text
    • http://rurova.morethanmydisability.com/uploads/1/3/1/3/131383483/verexekodebefun.pdfIn PDF document text
    • http://files.thecampuspathfinder.com/uploads/1/3/1/4/131453944/99623748.pdfIn PDF document text
    • http://files.brachioway.com/uploads/1/3/1/4/131437655/12f27c.pdfIn PDF document text
    • http://files.centrepointecincinnati.com/uploads/1/3/2/7/132712080/befuteko-fevafaposuvaw.pdfIn PDF document text
    • https:///as1.ftcdn.net/jpg/02/17/21/14/160_F_217211483_MyitLGJLFteBkvTHosxYn5HUSFUHysEA.jpgIn PDF document text
    • https:///as2.ftcdn.net/jpg/03/41/10/09/160_F_341100900_k0McXhXpC9N0nw6YtmuQx1g1jOso3Hsd.jpgIn PDF document text
    • https:///t3.ftcdn.net/jpg/03In PDF document text
    • https:///t4.ftcdn.net/jpg/03/65/68��/57In PDF document text
    • https://s.������In PDF document text
    • https:///as2.ftcdn.net/jpg/01/67/16/33/160_F_167163310_DOlijpUESga2kkZddEnURDPdv64sWFea.jpgIn PDF document text
    • https:///as1.ftcdn.net/jpg/02/16/05/04/160_F_216050460_iRXiz3pjsdBu9ekKPuWi3UuGLxudp9tN.jpgIn PDF document text
    • https:///gallerie.adobeIn PDF document text
    • https:///as1.ftcdn.net/jpg/02/16/05/04/160_F_216050475_NHg6htCFYMJAS6EFHQXYT3CAHrAK5lZI.jpgIn PDF document text
    • https:///as2.ftcdn.net/jpg/01/67/30/75/160_F_167307565_t0SmbnfhodaiScXu2BL9qOQHM4CF3Sam.jpgIn PDF document text
    • https:///adobe..com/de/download/Watermarked/167307565,����������:IndiaPix,author_url:/����������?-creator_id-207070863,content_urlIn PDF document text
    • https:///as1.ftcdn.net/jpg/01/67/30/24In PDF document text
    • https://��������In PDF document text
    • https:///adobe..com/de/download/Watermarked/167319496,����������:IndiaPix,author_url:/����-����������?creator_id-207070863,content_urlIn 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/1/0429/5367/0822/files/amidah_en_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8000/0423/files/42069274566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2177/0656/files/pojakoruz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7124/9311/files/fibepadegaxatomoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6703/8106/files/atoms_and_molecules_class_9_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5115/5618/files/43825785256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7530/3592/files/pdf_splitter_and_merger_free_software.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1995/2540/files/88941127449.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7012/8277/files/63556980028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3587/6776/files/wasanepupewewefelom.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_off0001e131.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E131 5356 bytes
SHA-256: cb2be31b70cc19ece1483a392f8f9eef8744599b0b1a4b656431c2ea71dfb29d
font_01_sfnt_off0001f333.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F333 16420 bytes
SHA-256: 2e3f2314e125ba16a1a5bb5d8583617a90ecebf28762d152dca16ea86cd65827
font_02_sfnt_off00022623.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22623 16204 bytes
SHA-256: 541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501