Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff38d82fc588f96b…

MALICIOUS

PDF

33.0 KB Created: 2020-08-20 08:59:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 775494cd5f03842bd9da402bdc7571a3 SHA-1: e674e06a7aff2d678f507bab6467f7a1783da9a1 SHA-256: ff38d82fc588f96b63f30ae91e6f2fc7ea416c929ae262ae2ee217a542f1db08
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as a worksheet title. The document also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains. The primary malicious link is https://ttraff.cc/pify?keyword=perpendicular+bisector+problems+worksheet, which likely serves as a lure to a secondary malicious resource.

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=perpendicular+bisector+problems+worksheet
    • http://juxafi.middleburyactors.com/uploads/1/3/2/7/132710621/8759360.pdf
    • http://files.cellar27furnitureco.com/uploads/1/3/0/7/130776033/2490977.pdf
    • http://geritilo.small2big.co.uk/uploads/1/3/1/3/131383791/7b235e3.pdf
    • https://cdn.shopify.com/s/files/1/0427/9150/1990/files/maxonolugunepurek.pdf
    • https://cdn.shopify.com/s/files/1/0429/7208/6423/files/bloodlines_richelle_mead_download_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/9451/5614/files/workforcenow._adp_first_time_user.pdf
    • https://cdn.shopify.com/s/files/1/0433/1097/3083/files/70107107366.pdf
    • https://cdn.shopify.com/s/files/1/0439/1577/2059/files/90699065925.pdf
    • https://cdn.shopify.com/s/files/1/0432/2459/6642/files/analgesia_anaesthesia_and_pregnancy_a_practical_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/1135/8372/files/mekakumupeno.pdf
    • https://cdn.shopify.com/s/files/1/0434/1615/8359/files/beclomethasone_davis_drug_guide.pdf
    • https://cdn.shopify.com/s/files/1/0427/8091/7926/files/sepegirigegutelapo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8913/files/business_law_notes_kenya.pdf
    • https://cdn.shopify.com/s/files/1/0439/8697/6926/files/78572803483.pdf
    • https://cdn.shopify.com/s/files/1/0429/3941/6732/files/famadaburijod.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_off000044c2.bin
cd4b88b83c619f284d63cae827022310cb6cb2b8814aef77379b17b8888f88f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x44C2 5612 bytes
font_01_sfnt_off000057a1.bin
038f0625c0536933ef8afb3ad2e1fea67cd532e5c8fb24ea7b5ca854823e800d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57A1 9220 bytes

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