Malicious PDF — malware analysis report

Static analysis result for SHA-256 49a85725832f14b7…

MALICIOUS

PDF

58.1 KB Created: 2020-08-24 10:29:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 749682a81d22b12ee9353d46bb69532e SHA-1: 1b4de1a3c6485c3edaf7c94b2e950e5efd36d770 SHA-256: 49a85725832f14b7e2177dca0f0e8debd717d42100ac608a837105caf429316c
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, `https://ttraff.cc/pify?keyword=bahubali+movie+video+song++tamil`, which is likely intended to lead the user to a malicious site. The document body, though heavily obfuscated, contains references to movie titles and URLs, suggesting a lure for malicious content. The presence of numerous PDF links, many pointing to Shopify domains, indicates a link farm strategy, likely to improve SEO for malicious content or to host payloads.

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=bahubali+movie+video+song++tamil
    • http://rebag.simicollins.com/uploads/1/3/0/7/130775565/xujafurobil_lotetebobisu_fiwiwefot_kopuvul.pdf
    • http://files.rivascap.com/uploads/1/3/1/3/131382470/giresuki.pdf
    • http://files.bestoftimeswatch.com/uploads/1/3/1/3/131379749/e4facd24be.pdf
    • http://files.lisaperron.org/uploads/1/3/0/8/130813645/87af03881.pdf
    • http://files.deannalindstrom.com/uploads/1/3/1/1/131163563/bowijuzapobimawajid.pdf
    • https://cdn.shopify.com/s/files/1/0444/3389/9686/files/deadweight_loss_of_taxation.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53151925343.pdf
    • https://cdn.shopify.com/s/files/1/0433/0799/1195/files/46510383457.pdf
    • https://cdn.shopify.com/s/files/1/0448/5061/0336/files/ragizomerobamas.pdf
    • https://cdn.shopify.com/s/files/1/0432/5651/2676/files/algebra_2_practice_test_3_answers.pdf
    • https://cdn.shopify.com/s/files/1/0436/6077/1481/files/2263253534.pdf
    • https://cdn.shopify.com/s/files/1/0436/8013/7369/files/mojoxajarivigugebana.pdf
    • https://cdn.shopify.com/s/files/1/0432/2567/7992/files/puzexalezejepim.pdf
    • https://cdn.shopify.com/s/files/1/0435/6728/4387/files/13946317832.pdf
    • https://cdn.shopify.com/s/files/1/0429/4826/4089/files/getifup.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e00.bin
052398a31587c444657880aed8fe10ca59f85e0de7cdaaed12a2498802e76962
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E00 5392 bytes
font_01_sfnt_off00008031.bin
d0c9e33916e9e64e42e31bcf0d345f6c2fcd41735b1a34df0119bd0eb1094281
pdf-font-stream PDF embedded font (sfnt) at offset 0x8031 3720 bytes
font_02_sfnt_off00008b95.bin
044e042f23cee771d5b18fbdae8df5600494c24117efa165a040f1badb1544a3
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B95 14568 bytes
font_03_sfnt_off0000b91f.bin
871d667e9de653c9131b6db67f791d8a82fac40042c31fc07e036e4c97fd43f0
pdf-font-stream PDF embedded font (sfnt) at offset 0xB91F 10708 bytes