Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcba8a7566c16601…

MALICIOUS

PDF

46.5 KB Created: 2020-08-20 19:33:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bc7130130a720f9fea2077ef1adb370a SHA-1: 6109d67f813816b2ee93544b919bce67336e306f SHA-256: fcba8a7566c16601750b715723cee0bd56c025643c38a54a7bb5b00c3a622678
150 Risk Score

Malware Insights

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

The PDF contains a link farm designed to direct users to malicious infrastructure, specifically identified by the critical PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The primary malicious URL is https://ttraff.com/pify?keyword=aadhalal+kadhal+seiveer+720p+movie. While many embedded URLs point to Shopify, one is hosted on files.montvillenjkeyclub.org, which is also suspicious. The ML classifier strongly indicates maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=aadhalal+kadhal+seiveer+720p+movie
    • http://files.montvillenjkeyclub.org/uploads/1/3/0/7/130776775/8859178.pdf
    • https://cdn.shopify.com/s/files/1/0427/7246/3772/files/dabivizikivarikulesulut.pdf
    • https://cdn.shopify.com/s/files/1/0429/8476/7647/files/62571070501.pdf
    • https://cdn.shopify.com/s/files/1/0432/6499/9588/files/carrier_furnace_parts_manual.pdf
    • https://cdn.shopify.com/s/files/1/0451/9126/6455/files/85284608933.pdf
    • https://cdn.shopify.com/s/files/1/0430/8677/4436/files/sutuzorigomuwop.pdf
    • https://cdn.shopify.com/s/files/1/0438/0380/3808/files/lupekesegev.pdf
    • https://cdn.shopify.com/s/files/1/0434/1514/2567/files/81149282437.pdf
    • https://cdn.shopify.com/s/files/1/0439/3094/3643/files/boriz_bob_song.pdf
    • https://cdn.shopify.com/s/files/1/0433/1202/1662/files/best_hunger_games_server.pdf
    • https://cdn.shopify.com/s/files/1/0432/7456/7833/files/bomepivujoparutir.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_off00006b03.bin
9c8e22e6897734bf81999f65651a39cb605cace43ad31a694666b1cdfe5c1d5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B03 5268 bytes
font_01_sfnt_off00007ce5.bin
ad90daf489f9eeb9761a3b14f62677c3ded9e1a6afea3ba9cbb1963718eefc33		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CE5 10060 bytes
font_02_sfnt_off00009f51.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9F51 4324 bytes

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