Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd3a74f298a9a3c4…

MALICIOUS

PDF

46.9 KB Created: 2020-08-10 03:27:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7cbc256a74bccd07eeef0d897e6893bb SHA-1: 5350ec8d239ab2d2468d16c849e06fa8f4110a09 SHA-256: bd3a74f298a9a3c476e4013bd3b850242d7cf83666419501ae629f7da327ba71
120 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to Shopify domains, but one critical link redirects to a known malicious domain (ttraff.com). This suggests a link farm or redirector tactic to obscure the final malicious destination. The document body, though heavily obfuscated, contains the malicious URL, reinforcing the lure. The primary attack pattern involves tricking the user into clicking the malicious link, likely leading to further compromise.

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=gym+workout+chart+pdf
    • http://gusuvikav.caulfieldpark.com/uploads/1/3/2/7/132712207/melemipemafaj.pdf
    • http://jinud.yoderbrothersantiques.com/uploads/1/3/1/3/131381204/164338.pdf
    • http://kenuz.mss4ball.net/uploads/1/3/1/3/131379894/lelokugubivi.pdf
    • http://files.ocoldpros.org/uploads/1/3/0/7/130739686/1130599.pdf
    • http://files.discountduniya.com/uploads/1/3/1/6/131637136/wifavofokatanivo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/37629755229.pdf
    • https://cdn.shopify.com/s/files/1/0434/6504/8214/files/70423916815.pdf
    • https://cdn.shopify.com/s/files/1/0434/2589/0469/files/fake_address_generator_us.pdf
    • https://cdn.shopify.com/s/files/1/0428/8741/3923/files/kugimoxupeg.pdf
    • https://cdn.shopify.com/s/files/1/0440/6801/2182/files/82676690118.pdf
    • https://cdn.shopify.com/s/files/1/0434/1301/2636/files/40775876024.pdf
    • https://cdn.shopify.com/s/files/1/0434/2821/6983/files/puxupitugabunekawipi.pdf
    • https://cdn.shopify.com/s/files/1/0447/9824/7069/files/udacity_self_driving_car.pdf
    • https://cdn.shopify.com/s/files/1/0436/9419/4843/files/xuvisemajowesuzirozer.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/5561128363.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vibemegabixowosepabotabux.pdf
    • https://cdn.shopify.com/s/files/1/0436/9930/6650/files/leadership_and_teamwork.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a2a.bin
84976d2a8164f2e72adce7dfcc5474f85fed0b891ca571f7d5af5690b1659197
pdf-font-stream PDF embedded font (sfnt) at offset 0x6A2A 5084 bytes
font_01_sfnt_off00007b90.bin
9d811995e2850cc769a41c6af618e4ea6b77e685fff70d60c40758491f71603b
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B90 10700 bytes
font_02_sfnt_off0000a019.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0xA019 4324 bytes