Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5d3b16f6bf1a21a…

MALICIOUS

PDF

57.2 KB Created: 2020-08-10 00:44:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b590c487c86f0901b06b28a7115248d9 SHA-1: 75cde1959a798e27d3c4781db038fe03fa4db069 SHA-256: a5d3b16f6bf1a21a5bf349c3febab91ddffa7c2fcf595de2813b63e629865d2c
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, many of which point to a redirector service known to host malicious content. The primary redirector URL is https://ttraff.ru/pify?keyword=israel+agriculture+technology+pdf. This indicates the document is likely a lure to redirect users to malicious sites, potentially for phishing or malware distribution. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=israel+agriculture+technology+pdf
    • http://files.homesweetfarmschool.com/uploads/1/3/1/8/131857723/vuzowilosaxurap.pdf
    • http://lupux.karyngearyphotography.com/uploads/1/3/2/7/132740892/vufosu-robipodiwiwamen.pdf
    • http://files.dancehampton.com/uploads/1/3/0/7/130739265/nivun-pegisuku-pevipa.pdf
    • http://files.splaxcustoms.com/uploads/1/3/1/4/131407493/muzuleritemu_tomoxizow_nobakugojubi.pdf
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/nuxurijedexefixisabujub.pdf
    • https://cdn.shopify.com/s/files/1/0444/4664/6439/files/calentador_solar_calorex.pdf
    • https://cdn.shopify.com/s/files/1/0429/3646/7623/files/behavioural_neuroscience_book.pdf
    • https://cdn.shopify.com/s/files/1/0436/4750/0448/files/97450444292.pdf
    • https://cdn.shopify.com/s/files/1/0432/6191/9390/files/nugatisep.pdf
    • https://cdn.shopify.com/s/files/1/0428/2282/8198/files/74301123539.pdf
    • https://cdn.shopify.com/s/files/1/0433/9544/8997/files/babysitter_walkthrough_1._8.pdf
    • https://cdn.shopify.com/s/files/1/0434/4381/4556/files/benzodiazepine_classification.pdf
    • https://cdn.shopify.com/s/files/1/0431/3900/6615/files/runutevasonafadifuranere.pdf
    • https://cdn.shopify.com/s/files/1/0432/5136/8104/files/nedubexebimasezew.pdf
    • https://cdn.shopify.com/s/files/1/0429/5114/7679/files/85864398150.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_off0000a051.bin
389ee8867af9763b3db91166b61ffade7fbd4f2f02a25b7c5fd962f06fec4e25		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA051 5456 bytes
font_01_sfnt_off0000b2e3.bin
9b8c260331c938af7262376fec299739de037adefa53a4a685583442e455c178		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB2E3 10812 bytes

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