Malicious PDF — malware analysis report

Static analysis result for SHA-256 2305745c65aa858f…

MALICIOUS

PDF

46.1 KB Created: 2020-08-19 15:28:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8e2150402fa03afaac7abf8e6050eb7b SHA-1: eeb06573b791aa70922e70a8be9c5d71de41179c SHA-256: 2305745c65aa858f0002d7c370bca55df7f83e1beb375e1b8046774e2a5a5eea
120 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for a malicious redirector link, disguised as 'Avery templates online'. This link points to ttraff.cc, which is known malicious infrastructure. The document also contains a large number of SEO-linked PDFs hosted on Shopify, likely to improve search engine ranking for malicious lures. The primary malicious URL is https://ttraff.cc/pify?keyword=avery+templates+online, which is used to redirect the user to further malicious content.

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.cc/pify?keyword=avery+templates+online
    • http://vurugejab.garforthdental.com/uploads/1/3/1/4/131438640/6f79df678b51.pdf
    • http://tetokixa.efmlogicalsolutions.com/uploads/1/3/1/1/131164250/nakarajek_mesozeloxi_fuguzixevodonu.pdf
    • http://gikile.photographyclassmelbourneaustralia.com/uploads/1/3/1/6/131636744/919307bb38de6.pdf
    • http://files.combatathletepa.com/uploads/1/3/1/6/131606490/3de92c5.pdf
    • http://files.slworship.com/uploads/1/3/1/3/131380008/modovaxukokozidubida.pdf
    • https://cdn.shopify.com/s/files/1/0438/0976/7584/files/gilos.pdf
    • https://cdn.shopify.com/s/files/1/0430/0718/0954/files/kizaxavebifuwutosaxe.pdf
    • https://cdn.shopify.com/s/files/1/0432/2652/9956/files/all_phylum_of_kingdom_animalia.pdf
    • https://cdn.shopify.com/s/files/1/0431/3127/3365/files/35081493134.pdf
    • https://cdn.shopify.com/s/files/1/0430/9372/1255/files/nogowuk.pdf
    • https://cdn.shopify.com/s/files/1/0434/0816/2974/files/80546188153.pdf
    • https://cdn.shopify.com/s/files/1/0432/5248/2208/files/18830898095.pdf
    • https://cdn.shopify.com/s/files/1/0433/4272/5275/files/physics_lab_apparatus_and_their_uses.pdf
    • https://cdn.shopify.com/s/files/1/0438/9843/7787/files/nada_boat_guide.pdf
    • https://cdn.shopify.com/s/files/1/0436/0385/3469/files/mevemiw.pdf
    • https://cdn.shopify.com/s/files/1/0432/7155/3189/files/7388008273.pdf
    • https://cdn.shopify.com/s/files/1/0431/1033/4620/files/ungrouped_frequency_distribution_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0434/0826/1277/files/ffx_crest_and_sigil_guide.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000694d.bin
31c2897c90ad73de8d507c6fb4e953fea87616be26eaecbac5f64c8bb2ba43da
pdf-font-stream PDF embedded font (sfnt) at offset 0x694D 4904 bytes
font_01_sfnt_off000079dc.bin
592c8759316d60c830328dbf4415742498a37b68c0b46dfd924bfe9723ab7427
pdf-font-stream PDF embedded font (sfnt) at offset 0x79DC 10376 bytes
font_02_sfnt_off00009d67.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D67 4324 bytes