Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab10af53b005024d…

MALICIOUS

PDF

45.7 KB Created: 2020-08-08 03:34:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ffde5e75dd4d7a9edcc00a427a7762ca SHA-1: b7819d5046e6bbdaef717ff083412e11a8aa7e48 SHA-256: ab10af53b005024de0816f5e11db22984f8914582170977b139af700dda75361
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body and embedded URLs suggest a lure related to downloading a book, which is a common tactic for phishing or malware delivery. The primary malicious URL is https://ttraff.com/pify?keyword=english+book+for+beginners+adults+pdf, which likely serves as the initial point of compromise.

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.com/pify?keyword=english+book+for+beginners+adults+pdf
    • http://files.salonargio.com/uploads/1/3/1/6/131606487/dea332.pdf
    • http://files.coaosa.com/uploads/1/3/1/4/131453484/tadibuv.pdf
    • http://files.purelivingwithlisamorton.com/uploads/1/3/1/4/131406386/kitulit-sipubab-pesumurug.pdf
    • http://nagojodak.naturesjewelsak.com/uploads/1/3/0/7/130776791/b2b78d45338d.pdf
    • http://files.elizabethadabale.com/uploads/1/3/1/4/131453250/9202b3fae9.pdf
    • https://cdn.shopify.com/s/files/1/0429/3420/6631/files/63533074997.pdf
    • https://cdn.shopify.com/s/files/1/0431/4939/4080/files/6583905831.pdf
    • https://cdn.shopify.com/s/files/1/0428/5969/2198/files/gonezolivutifexun.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/detomalusezujit.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38746106010.pdf
    • https://cdn.shopify.com/s/files/1/0431/2186/8960/files/lurunobewus.pdf
    • https://cdn.shopify.com/s/files/1/0427/4041/6678/files/gaketifisugej.pdf
    • https://cdn.shopify.com/s/files/1/0432/6883/3436/files/barron_s_sat_29th_edition_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/tofig.pdf
    • https://cdn.shopify.com/s/files/1/0430/9853/8151/files/automata_theory_tutorial_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/2214/8003/files/wii_operation_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/3428/0090/files/54280995377.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_off0000743b.bin
33e71baccc6e71757d3e2047703ec4ab5d87542e282f54b1124028ed86396831		 pdf-font-stream PDF embedded font (sfnt) at offset 0x743B 5464 bytes
font_01_sfnt_off000086c9.bin
4f670a1500512357aa709a3bd50efa1cd3b6976dfc0df7d84f421608136cff4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86C9 10356 bytes

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