Malicious PDF — malware analysis report

Static analysis result for SHA-256 d325b865e6463194…

MALICIOUS

PDF

42.2 KB Created: 2020-08-31 14:46:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9398e07aa160d910ad5a2ad481da25c3 SHA-1: 3b954394a76a9d96f95c4fc981641a1baa287f9d SHA-256: d325b865e64631944c07f8b21480c52ab89a67f0ab1df7dbdfc6f62668242958
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=airtel+tv++kannada'. This indicates an attempt to direct the user to a malicious site, likely for phishing or malware distribution. The document body, though heavily obfuscated, contains the same URL, reinforcing its malicious intent. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, though the primary malicious link is the redirector.

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.me/wix?keyword=airtel+tv++kannada
    • https://cdn.shopify.com/s/files/1/0429/7303/6697/files/sedubuvaseleki.pdf
    • https://cdn.shopify.com/s/files/1/0438/0740/8290/files/tamil_dubbed_hollywood_space_movies_free.pdf
    • https://cdn.shopify.com/s/files/1/0440/2728/1558/files/ap_gp_hp.pdf
    • https://cdn.shopify.com/s/files/1/0430/8857/6661/files/nunox.pdf
    • https://static.usrfiles.com/ugd/40512e_411259a324564214b12acb636110ae57.pdf
    • https://static.usrfiles.com/ugd/b8c837_64e5bb49698a4c9bad2780874bc10da0.pdf
    • https://static.usrfiles.com/ugd/97634b_ee6a269a4dc04f7fa75f2a536b410254.pdf
    • https://static.usrfiles.com/ugd/067ecb_117a309eb3284150b595bd56de92762d.pdf
    • https://static.usrfiles.com/ugd/b8c837_c70ae301112d4537b646ff22c82535f0.pdf
    • https://cdn.shopify.com/s/files/1/0432/5448/1054/files/tulumutotafekerojowegu.pdf
    • https://cdn.shopify.com/s/files/1/0440/0339/3694/files/apposer_un_tampon_sur.pdf
    • https://cdn.shopify.com/s/files/1/0428/6591/8118/files/fusionner_gratuit_franais.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/25322908130.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_off00005439.bin
80b19d38624933782691ba6b49a469b2f700c2c53c327cc66efc0ddcd7ad9d8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5439 4756 bytes
font_01_sfnt_off00006477.bin
35cf3381035a2478f8f717bcce728cc67d7432005278ad45e8a0174c629b1021		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6477 10008 bytes
font_02_sfnt_off000086f8.bin
c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86F8 16164 bytes

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