Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9d1bbb4959ffd8f…

MALICIOUS

PDF

39.5 KB Created: 2020-08-06 08:40:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7f27a124dfca4088f549657b62884d36 SHA-1: 29d8be755e686db37cfb86467948a39ea256a570 SHA-256: c9d1bbb4959ffd8fcddffc4ce798afc0aa24a535a280a433eb037321577b9147
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The primary malicious URL identified is ttraff.ru, which is used in conjunction with a keyword suggesting a document lure. While many other URLs are present, they appear to be part of a link farm, with the ttraff.ru URL being the most suspicious. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine the exact nature of the lure beyond the presence of the malicious link.

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.ru/pify?keyword=heteroside+cardiotonique+pdf
    • http://files.550westadams.com/uploads/1/3/2/6/132681836/3fdc77bd45378f.pdf
    • http://files.carolynfordart.com/uploads/1/3/0/7/130740011/mevowowedek_duwuwaviveto.pdf
    • http://files.onyxfuneralplanning.com/uploads/1/3/1/3/131380413/pofadajigivep.pdf
    • https://cdn.shopify.com/s/files/1/0436/2820/0096/files/83553639214.pdf
    • https://cdn.shopify.com/s/files/1/0440/8023/4661/files/prepositions_of_place_in_the_city_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0436/0513/1421/files/too_many_items_mod_1._8._9.pdf
    • https://cdn.shopify.com/s/files/1/0431/2468/7014/files/51573101192.pdf
    • https://cdn.shopify.com/s/files/1/0432/4291/3952/files/tunuzegatetefewosaronodi.pdf
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/37722538124.pdf
    • https://cdn.shopify.com/s/files/1/0438/2110/5309/files/2009_volkswagen_jetta_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/5288/3352/files/pugileni.pdf
    • https://cdn.shopify.com/s/files/1/0431/7157/8007/files/subofaro.pdf
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/86874282848.pdf
    • https://cdn.shopify.com/s/files/1/0428/6251/0236/files/automobile_bill_of_sale_texas.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_off00005b53.bin
b5c3625a868a72c33309e012b366571da18fb2a31d25d4bb64329017ba183bf1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B53 5204 bytes
font_01_sfnt_off00006d11.bin
3044023d8a4548646948ba04bf0eec7dec2463d4a64a0b9c0f8362eb04cdf159		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D11 10812 bytes

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