Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e685f94633ecf91…

MALICIOUS

PDF

42.7 KB Created: 2020-08-29 22:21:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8eb93d6376dd5b17d8dcc1f8a2465889 SHA-1: 3e70e1e754f24787a1769f89af83a48d33cbd61c SHA-256: 9e685f94633ecf916ffe16c4bf9025da76f24a6f6adf7d8ed5be9483dc9ec996
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The document also contains a large number of embedded links, many pointing to Shopify, suggesting a link farm or SEO manipulation tactic. The presence of a 'download button' lure further supports the malicious intent of redirecting the user to a harmful site.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=how+cars+work+tom+newton+pdf+downloa
    • https://cdn.shopify.com/s/files/1/0431/7646/0447/files/breath_of_the_wild_rock_salt.pdf
    • https://cdn.shopify.com/s/files/1/0431/5725/8402/files/61200849349.pdf
    • https://cdn.shopify.com/s/files/1/0438/2566/0066/files/microsoft_device_association_root_en.pdf
    • https://cdn.shopify.com/s/files/1/0434/2949/4936/files/airplay_android_tv_sony.pdf
    • https://cdn.shopify.com/s/files/1/0437/5884/6110/files/likovozemazuzeto.pdf
    • https://cdn.shopify.com/s/files/1/0431/2960/2205/files/14485890520.pdf
    • https://cdn.shopify.com/s/files/1/0434/7848/3097/files/asperger_syndrome_test.pdf
    • https://cdn.shopify.com/s/files/1/0433/0065/1158/files/kaneduwakojaji.pdf
    • https://cdn.shopify.com/s/files/1/0435/4883/6004/files/my_big_toe_trilogy.pdf
    • https://cdn.shopify.com/s/files/1/0437/8984/4641/files/73985333238.pdf
    • https://cdn.shopify.com/s/files/1/0463/3391/9393/files/21290102657.pdf
    • https://cdn.shopify.com/s/files/1/0427/4244/8295/files/android_emulator_for_development_mac.pdf
    • https://cdn.shopify.com/s/files/1/0429/3004/5091/files/60717640236.pdf
    • https://cdn.shopify.com/s/files/1/0435/1400/3610/files/losunadafamukixosudapija.pdf
    • https://cdn.shopify.com/s/files/1/0435/9349/8787/files/pebilarelagewatolama.pdf
    • https://cdn.shopify.com/s/files/1/0429/0261/8278/files/active_learning_creating_excitement_in_the_classroom.pdf
    • https://cdn.shopify.com/s/files/1/0434/3631/0678/files/vuwotin.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_off00006637.bin
8d269f3d956b90e10ac916f6f94d87cc8b4c81254c3b5bfc00072385b6f8286c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6637 5416 bytes
font_01_sfnt_off00007899.bin
bea9c52ee79413f60c263d1e2654971972f4e28630683c63efa1115258bd9628
pdf-font-stream PDF embedded font (sfnt) at offset 0x7899 11048 bytes