Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7ee92c5bf83ec23…

MALICIOUS

PDF

40.7 KB Created: 2020-08-31 03:11:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95644fea9effbfcc0fdb32afc626e65b SHA-1: e9721cef4887bfb997f469d43b4704dd06cc3789 SHA-256: c7ee92c5bf83ec23489c2f4803d9bb36fda1270ca2cfa22beb4775824b2e2555
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one specifically identified as a malicious redirector. This suggests the primary intent is to direct users to malicious infrastructure. The document body contains garbled text and a URL that matches the malicious redirector, further supporting this conclusion. No scripts were extracted from this sample.

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/wix?keyword=quo+vado+streaming+nowvideo
    • https://static.usrfiles.com/ugd/63022f_ae4dbe9ab9194198a7ba282010fd23fc.pdf
    • https://static.usrfiles.com/ugd/917232_c698b64a71dc4bf09aa725daf446baa1.pdf
    • https://static.usrfiles.com/ugd/97368a_a9910ad8130044dc88c46ad748bada73.pdf
    • https://static.usrfiles.com/ugd/a18aa6_a9de0fd4a78249c7810b280a65d52466.pdf
    • https://static.usrfiles.com/ugd/f96b02_5e7ce8630fc340d2bcc5a550da7d702c.pdf
    • https://cdn.shopify.com/s/files/1/0428/3128/2335/files/kujagudamujikuramirure.pdf
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/reranil.pdf
    • https://cdn.shopify.com/s/files/1/0432/5870/8136/files/cod_waw_pc_campaign_mods.pdf
    • https://static.usrfiles.com/ugd/b8c837_940384b7959d48c39fa2658203273150.pdf
    • https://static.usrfiles.com/ugd/b8c837_60f941783ff54948925393a1e465d837.pdf
    • https://static.usrfiles.com/ugd/b8c837_963d92698c7844c393e7377a5d1421e7.pdf
    • https://static.usrfiles.com/ugd/b8c837_c69bbc6839a4483286f90113381a2ba4.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_off0000614a.bin
0f229fd215af74cf9f2d111088cea3167b9332b0b8fb6408fb8f966e31bc8bb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x614A 5328 bytes
font_01_sfnt_off00007360.bin
763237ed74491caac467eddea5bb8209ea607009c65f1c86f5228fcc04a2aafe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7360 10124 bytes

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