Malicious PDF — malware analysis report

Static analysis result for SHA-256 47aa2692c5ad2f7c…

MALICIOUS

PDF

43.2 KB Created: 2020-08-26 00:15:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cacd9b9011236058deb8e5b8a562055b SHA-1: a474c2dac5a7ee445bf79fb354864d8c1db2ad3f SHA-256: 47aa2692c5ad2f7cc814b0f2c2010915dc40f0f5b934a77bc7080e36a488b9f2
152 Risk Score

Malware Insights

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

This PDF document is classified as malicious due to the presence of numerous embedded links, a common tactic for distributing malware or leading users to phishing sites. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which likely serves as a gateway to further malicious content. Another heuristic flagged the document as a PDF link farm, containing a large number of external links, many hosted on Shopify, suggesting an attempt to manipulate search engine results or distribute content through a seemingly benign platform. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=mooiste+gedicht+over+liefde
    • http://files.poeticp.com/uploads/1/3/1/4/131438459/guladexe_pamubopopugapi_ruxudapixeb.pdf
    • http://guwovurap.jessicadeleon.com/uploads/1/3/2/3/132302782/c98cb8333ffe2f9.pdf
    • http://files.tundratour.com/uploads/1/3/1/4/131408204/nomofi.pdf
    • http://files.shelainestrom.com/uploads/1/3/1/6/131606890/kapisup.pdf
    • http://files.thebrooklyngreenschool.com/uploads/1/3/1/3/131381553/gatazekozamoxav.pdf
    • https://cdn.shopify.com/s/files/1/0435/5656/9247/files/forifujitizekomuzi.pdf
    • https://cdn.shopify.com/s/files/1/0432/2259/7800/files/boss_rc_3_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/5831/4912/files/65530303208.pdf
    • https://cdn.shopify.com/s/files/1/0428/8849/5270/files/credit_report_australia_instant.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58014629257.pdf
    • https://cdn.shopify.com/s/files/1/0431/8127/7345/files/guworigidaxaxutugirukoxin.pdf
    • https://cdn.shopify.com/s/files/1/0432/7243/7910/files/fomevek.pdf
    • https://cdn.shopify.com/s/files/1/0431/1826/4469/files/76720707300.pdf
    • https://cdn.shopify.com/s/files/1/0431/4434/7802/files/kujelebebito.pdf
    • https://cdn.shopify.com/s/files/1/0429/5108/2143/files/98844638805.pdf
    • https://cdn.shopify.com/s/files/1/0429/6772/8281/files/jabog.pdf
    • https://cdn.shopify.com/s/files/1/0435/5548/7905/files/fexinuxes.pdf
    • https://cdn.shopify.com/s/files/1/0435/1829/6216/files/53952729776.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006ab4.bin
e19abb0e4cc66f74cb34ccda9925232852160bd5f4de079b420126c28fd90e82		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB4 5136 bytes
font_01_sfnt_off00007c3c.bin
bd8590c6f4154af8c7d5862fdfb09b0ec479c813066431b6ef5614f1e100c225		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C3C 10492 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.