Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa906e01db50e83f…

MALICIOUS

PDF

41.3 KB Created: 2020-08-30 04:21:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 73db5075ffd7b923050380493684b8c9 SHA-1: c2d7527d67c40e9025b2a980e44dd068994b833c SHA-256: aa906e01db50e83f887113eb688594b2fa4103505dadc1c3a0d2dd07fefe795e
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a PDF link farm. The primary malicious URL, 'https://ttraff.com/wix?keyword=super+tank+2', is flagged as a malicious redirector. While many other links point to benign Shopify domains, the presence of the malicious redirector and the sheer volume of links suggest an attempt to lure users to harmful content. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine a more specific attack pattern beyond link-based redirection.

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/wix?keyword=super+tank+2
    • https://cdn.shopify.com/s/files/1/0458/5996/3033/files/nigeria_afro_beat_instrumental.pdf
    • https://cdn.shopify.com/s/files/1/0433/8833/8330/files/fire_emblem_three_houses_guide_chapters.pdf
    • https://cdn.shopify.com/s/files/1/0428/3075/8054/files/nerej.pdf
    • https://cdn.shopify.com/s/files/1/0433/3263/2730/files/krishna_damodaram_janaki_vallabham_m.pdf
    • https://cdn.shopify.com/s/files/1/0433/4157/8399/files/bedsheet_manufacturer_near_me.pdf
    • https://cdn.shopify.com/s/files/1/0428/6650/7942/files/practical_english_usage_4th_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/2720/2205/files/ponawinem.pdf
    • https://cdn.shopify.com/s/files/1/0434/5203/9328/files/model_based_clustering_methods.pdf
    • https://cdn.shopify.com/s/files/1/0430/4257/0401/files/49204992262.pdf
    • https://cdn.shopify.com/s/files/1/0435/3441/8072/files/bubulamu.pdf
    • https://cdn.shopify.com/s/files/1/0435/3359/8880/files/kapelotozufenuludizez.pdf
    • https://cdn.shopify.com/s/files/1/0430/6881/7569/files/xexazokadopotagunapume.pdf
    • https://static.usrfiles.com/ugd/b8c837_fb535a3769be4c5fbdc1600a9f909bca.pdf
    • https://static.usrfiles.com/ugd/b7306e_f6012840b5844c3786890b41fa29aede.pdf
    • https://static.usrfiles.com/ugd/bd5c68_b935608d04f74e36bcb9ef44465664a2.pdf
    • https://static.usrfiles.com/ugd/0df15e_c37e84c01ac641e596dd756bedec7f18.pdf
    • https://static.usrfiles.com/ugd/b8c837_0033ea4452db4d5b989bf92049294be2.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_off00006568.bin
e3e20802e29c0a7ed2a8eea1dd4d75439717e129a9284a3945dc5dd9a5710ee1
pdf-font-stream PDF embedded font (sfnt) at offset 0x6568 4900 bytes
font_01_sfnt_off00007626.bin
b3751e621ddcf0f8fd719fc84b2141f20d4a977b85957bd5262868d5b73fe05e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7626 10120 bytes