Malicious PDF — malware analysis report

Static analysis result for SHA-256 9171c2ad4c26f0ed…

MALICIOUS

PDF

65.9 KB Created: 2020-08-23 06:01:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9464b83b717cb2ad70b9a01a0476019e SHA-1: 622708b8b1ce16b26c504d6073a9b5b6ce80c864 SHA-256: 9171c2ad4c26f0ed675756681c29f63afdcb95216a2cb10a64f2c4e624477c36
120 Risk Score

Malware Insights

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

The PDF file exhibits malicious behavior through its extensive use of embedded links. A critical heuristic identified a link to a known malicious redirector, ttraff.com, which likely serves to obfuscate the ultimate destination of the attack. Additionally, the PDF contains a large link farm, with many links pointing to Shopify-hosted PDFs, suggesting a coordinated effort to distribute malicious content or engage in SEO manipulation for malicious purposes. No scripts were extracted, but the primary attack vector appears to be the redirection of users to potentially harmful content via the embedded links.

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=bal+ganesh+2+all+songs
    • http://wasukusu.mxchronicles.com/uploads/1/3/1/8/131871674/8623265.pdf
    • http://dobero.positivevibes4u.com/uploads/1/3/1/0/131071157/japanabesijulaguf.pdf
    • http://files.watersportsinkorea.com/uploads/1/3/0/7/130776420/4c679c3.pdf
    • http://files.themonkeysbanana.com/uploads/1/3/2/7/132711966/pagupabigun.pdf
    • http://files.jasminemakeupme.com/uploads/1/3/0/9/130969987/sidigibufilemowagi.pdf
    • https://cdn.shopify.com/s/files/1/0440/9825/7048/files/rifakunisidoxujowulibuf.pdf
    • https://cdn.shopify.com/s/files/1/0436/1771/4334/files/free_credit_card_validator_apk.pdf
    • https://cdn.shopify.com/s/files/1/0435/8435/6507/files/xipifodoke.pdf
    • https://cdn.shopify.com/s/files/1/0462/2024/7194/files/template_for_wedding_weekend_itinerary.pdf
    • https://cdn.shopify.com/s/files/1/0429/8699/5863/files/introduction_to_industrial_organization_luis_m._cabral.pdf
    • https://cdn.shopify.com/s/files/1/0430/2074/6906/files/76507813354.pdf
    • https://cdn.shopify.com/s/files/1/0457/7833/7958/files/saree_blouse_cutting_method.pdf
    • https://cdn.shopify.com/s/files/1/0431/0201/1548/files/70053115486.pdf
    • https://cdn.shopify.com/s/files/1/0429/2401/5783/files/wulimevuk.pdf
    • https://cdn.shopify.com/s/files/1/0432/8567/6192/files/13311806489.pdf
    • https://cdn.shopify.com/s/files/1/0431/9471/2228/files/ririfumepekokixuramu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/87756698901.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_off00009a3f.bin
97ca707eefb8696377a42a8b877a46a08783b548f13ba6187ac3d8904b414d21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A3F 4692 bytes
font_01_sfnt_off0000aa20.bin
a9e1d1c7de9fdb0f2efc0add6a88ad9bf6f1fb67e4b6ce491ffc544a4ef7b5f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA20 14104 bytes
font_02_sfnt_off0000d70e.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD70E 16164 bytes
font_03_sfnt_off0000ec27.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC27 4324 bytes

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