Malicious PDF — malware analysis report

Static analysis result for SHA-256 5789c4af174f9108…

MALICIOUS

PDF

35.0 KB Created: 2020-08-25 03:41:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1d93979091fe8ac131f86d21ad70d3cd SHA-1: 28afe9eb26f0d04eb4a8dc3e32a0945d0dafb583 SHA-256: 5789c4af174f91086ea7dff16dd5dd4ceb2e64da431b2070d8a9b9546c18731b
128 Risk Score

Malware Insights

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

The PDF file contains a prominent link that redirects to a known malicious URL, masquerading as a movie download. This is further supported by heuristics indicating a malicious redirector and a link farm designed for SEO manipulation. The document body contains the malicious URL and a call-to-action phrase, reinforcing the social engineering aspect.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=avengement+full+movie++mp4
    • http://xagerete.ucsd-stahr.com/uploads/1/3/1/3/131379578/zeneguz.pdf
    • https://cdn.shopify.com/s/files/1/0429/3555/0118/files/bundesliga_spielplan_16_17_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0431/9461/3924/files/capelania_empresarial.pdf
    • https://cdn.shopify.com/s/files/1/0431/2052/5476/files/zuxanafinuwuwogusog.pdf
    • https://cdn.shopify.com/s/files/1/0435/3743/2744/files/nijiwakofisipabof.pdf
    • https://cdn.shopify.com/s/files/1/0431/6508/9941/files/28155688317.pdf
    • https://cdn.shopify.com/s/files/1/0431/8216/2084/files/nujunulo.pdf
    • https://cdn.shopify.com/s/files/1/0433/4492/0734/files/kamelapizidaromitekuve.pdf
    • https://cdn.shopify.com/s/files/1/0438/9021/3019/files/67300996407.pdf
    • https://cdn.shopify.com/s/files/1/0441/2240/7064/files/guturopuzojalexijamuvedim.pdf
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/beginners_guide_to_photography.pdf
    • https://cdn.shopify.com/s/files/1/0435/6849/6798/files/suwusikaxirowopimi.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a08.bin
601e2d74ee0564d28a41503d30cf426773981a941b5d0117047728069c5ca352		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A08 4872 bytes
font_01_sfnt_off00005aab.bin
6d301f4b078329e6b0b988ca51d4e69d1062ecdd72664f347057de124ea56031		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AAB 10956 bytes

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