Malicious PDF — malware analysis report

Static analysis result for SHA-256 aead74602c697eeb…

MALICIOUS

PDF

44.1 KB Created: 2020-08-31 02:45:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 474b5faede6a66e90df5668b0327484b SHA-1: 35f61b4457681b058bd9fc86ae36ca784f159e7c SHA-256: aead74602c697eeba3194294a2b1f86f180d8225edbc3e2c12e43e908caba169
120 Risk Score

Malware Insights

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

The PDF file was identified as malicious due to a critical heuristic firing for a malicious redirector link. The document body contains numerous embedded URLs, including a primary link to 'ttraff.com', which is flagged as a malicious redirector. The presence of a PDF link farm further suggests an attempt to distribute malicious content or engage in SEO poisoning to lure unsuspecting users. No scripts were extracted from this sample.

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=quarto+de+despejo+di%25C3%25A1rio+de+uma+fave
    • https://static.usrfiles.com/ugd/b8c837_b505307334274776b85311ad1586d35a.pdf
    • https://static.usrfiles.com/ugd/b8c837_60a2b0324e5e4562ad4f5ea1b57b51ee.pdf
    • https://static.usrfiles.com/ugd/b8c837_0fd2484c14884def85a5fb0ec61fbfc7.pdf
    • https://static.usrfiles.com/ugd/4c1554_4a48a42864f6481f911eede156ca0dc2.pdf
    • https://static.usrfiles.com/ugd/bb13a2_be204486f3fe449cb30161fbe200892f.pdf
    • https://static.usrfiles.com/ugd/b6bf5b_07641f1fae574042a5679c83dd35c4d7.pdf
    • https://cdn.shopify.com/s/files/1/0432/5743/0176/files/lagu_aydan_calafiore_despacito.pdf
    • https://cdn.shopify.com/s/files/1/0428/9114/9471/files/hollow_ground_guide_service_reviews.pdf
    • https://cdn.shopify.com/s/files/1/0457/6133/1356/files/darkness_rises_leveling_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/food_flyers_design_template.pdf
    • https://cdn.shopify.com/s/files/1/0435/8812/4830/files/74456780204.pdf
    • https://cdn.shopify.com/s/files/1/0431/1869/0458/files/dnd_5e_artificer.pdf
    • https://cdn.shopify.com/s/files/1/0431/4418/3970/files/91370209555.pdf
    • https://cdn.shopify.com/s/files/1/0432/7725/4814/files/box_behnken_method.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_off0000697f.bin
15b1037842e3f211cef70d5c55089ba118cffaaabc85541c988f465555c06522
pdf-font-stream PDF embedded font (sfnt) at offset 0x697F 5588 bytes
font_01_sfnt_off00007bef.bin
79fa3bda539639ed8939ae14bcba3a9b1cda9674988dcccf117f8b03d58f266b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BEF 12252 bytes