Malicious PDF — malware analysis report

Static analysis result for SHA-256 5246aced2a2763bf…

MALICIOUS

PDF

44.4 KB Created: 2020-08-23 01:26:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: ea3b2a0901d2774341587f0e930349b6 SHA-1: 290ccbcfdacff4334c25609bf4d05f2799941567 SHA-256: 5246aced2a2763bf76a2702085ca274680e502fe5e54e9330adb2cafaabc2115
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a mass of external links, many of which are hosted on Shopify but appear to be part of a link farm. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'ttraff.cc', which is used to obscure the final destination. The document body, though heavily obfuscated, contains the same suspicious URL, suggesting an attempt to trick users into clicking it under the guise of free movie content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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.cc/pify?keyword=bengali+movie+sathi+all+song+free In PDF document text
    • http://files.elevationtoday.com/uploads/1/3/0/9/130969176/1b6e6f4046fa9b.pdfIn PDF document text
    • http://files.bingocompany.net/uploads/1/3/1/3/131379612/d2857f2095895b.pdfIn PDF document text
    • http://files.steveweave.com/uploads/1/3/0/8/130814112/mikukefekorawof-ruzatatu-tikulolebud.pdfIn PDF document text
    • http://files.victorystrengthandfitness.net/uploads/1/3/0/9/130969184/118275.pdfIn PDF document text
    • http://files.bonetownbbqri.com/uploads/1/3/1/4/131437376/e19d59c7421a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2826/6654/files/1200_bosquejos_biblicos_para_predicar_y_ensear_archibald_naismith.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5013/8784/files/98154644150.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9805/3539/files/vertebral_osteomyelitis_guidelines_idsa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5960/0798/files/36195199670.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/7902/5059/files/60043529961.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0564/8801/files/dumedusixowesavawam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8794/6133/files/40153182792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0718/0954/files/28859026010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1423/2996/files/vonenirubesajaxuga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0918/7750/files/zutem.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D80 5288 bytes
SHA-256: b1f0560372b0a56f202a7d0a26be35bd82332d41907c9864b9287d0303e2e230
font_01_sfnt_off00007f57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F57 6120 bytes
SHA-256: 048cefd967cab45721d896235bf08720adc2a337ca9c30c9e36362d860ef24b5
font_02_sfnt_off0000932f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x932F 10016 bytes
SHA-256: a76f7cab1b6cd94a03030a1dc3fec573e6304779b18f9ca16d4a112ff1e843c4

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