Malicious PDF — malware analysis report

Static analysis result for SHA-256 b02e7a787e184ff4…

MALICIOUS

PDF

45.9 KB Created: 2020-08-17 18:14:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4525ff984dc7d2f08b538ada80eb110e SHA-1: cff48582178190c2af888143f212411043b0b070 SHA-256: b02e7a787e184ff49b317098105fb70b6a4ded926ecd1b1a834ababa96f3e61c
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one specifically pointing to a known malicious redirector. The heuristic firings indicate that this PDF is part of a link farm, likely intended for SEO poisoning or to distribute further malicious content. The primary malicious URL identified is https://ttraff.com/pify?keyword=former+eu+trade+commissioner.

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=former+eu+trade+commissioner
    • http://files.melanievanzyl.com/uploads/1/3/1/3/131398487/gupuz.pdf
    • http://files.bejewelled.shop/uploads/1/3/0/8/130874142/37f020b.pdf
    • http://files.eastmainstdesign.com/uploads/1/3/0/7/130776088/7443999.pdf
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/bumevofimovolone.pdf
    • https://cdn.shopify.com/s/files/1/0431/5486/6333/files/54314413386.pdf
    • https://cdn.shopify.com/s/files/1/0431/1918/1978/files/jajixewomukiretekinufusa.pdf
    • https://cdn.shopify.com/s/files/1/0439/8986/0510/files/running_plan_for_weight_loss_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0439/7678/6078/files/22716279479.pdf
    • https://cdn.shopify.com/s/files/1/0429/2889/8211/files/animal_anatomy_for_artists.pdf
    • https://cdn.shopify.com/s/files/1/0430/0043/0746/files/lajobuvufodovutituja.pdf
    • https://cdn.shopify.com/s/files/1/0435/5552/0673/files/mumefed.pdf
    • https://cdn.shopify.com/s/files/1/0434/6865/2697/files/emission_spectrum_of_hydrogen_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/0933/5715/files/xusetimunufojubadutu.pdf
    • https://cdn.shopify.com/s/files/1/0437/1123/4199/files/acls_post_test_answer_key_2020.pdf
    • https://cdn.shopify.com/s/files/1/0430/9660/4825/files/55920501230.pdf
    • https://cdn.shopify.com/s/files/1/0435/3864/5144/files/sulorukunekejuzumod.pdf
    • https://cdn.shopify.com/s/files/1/0433/3764/6245/files/soxolosalupozomivetipod.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_off00006c2c.bin
f0785fe3e70725419be6517b3677e3edaef1bba777314a1a2c5466aa36e965ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2C 5008 bytes
font_01_sfnt_off00007d1b.bin
c8a0351f4a7a6bce28abb8c20ef60e1a5f2e47aae07d6a717bb84057a7227ea6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D1B 14860 bytes

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