Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c6337de0669e492…

MALICIOUS

PDF

44.7 KB Created: 2020-08-17 00:01:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5656e1c79a2920ce3159a75fce446c79 SHA-1: 0b07c01729f4091595b811445682a6bd24578e07 SHA-256: 9c6337de0669e4925111fb7b4f3b1507cfc22815b7b20a1397b40da73d4f6428
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm designed for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, 'ttraff.cc', which is presented with a deceptive keyword. This suggests the document is part of a phishing or scam campaign aiming to redirect users to malicious sites.

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.cc/pify?keyword=android+app+for+windows+keyboard
    • http://files.cccrw.org/uploads/1/3/0/7/130739353/ae70804c.pdf
    • http://zogevitet.sugarsweetdreams.com/uploads/1/3/0/7/130775164/rotigopekewavenos.pdf
    • http://zeseki.supportbef.org/uploads/1/3/0/7/130739561/9043192.pdf
    • http://files.howtoresearchtrends.com/uploads/1/3/1/4/131453111/340d36.pdf
    • https://cdn.shopify.com/s/files/1/0438/9902/7611/files/assassination_classroom_live_action_movie_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/8380/0474/files/dont_cry_chords.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/34070323791.pdf
    • https://cdn.shopify.com/s/files/1/0428/1407/9143/files/10477684580.pdf
    • https://cdn.shopify.com/s/files/1/0431/7226/6150/files/97804316608.pdf
    • https://cdn.shopify.com/s/files/1/0434/5652/8541/files/flightpath_teacher_s_book_aviation_english_for_pilots_and_atcos.pdf
    • https://cdn.shopify.com/s/files/1/0427/8353/9366/files/99_names_of_allah_meaning_and_benefits.pdf
    • https://cdn.shopify.com/s/files/1/0435/7872/0414/files/xexidevigamaxa.pdf
    • https://cdn.shopify.com/s/files/1/0430/7140/6237/files/67241639573.pdf
    • https://cdn.shopify.com/s/files/1/0433/6880/8613/files/nozanatiwewuxagikesufor.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_off00006382.bin
02a2598827ed7973fb48b7a27893828e347f4f14f5c22692c6db7e827a70a12e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6382 5096 bytes
font_01_sfnt_off000074e9.bin
e1933fdbecc279bb7f9de16a9874f17a3424fd9b9f45e9b540cdf6ed51b876e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74E9 10212 bytes
font_02_sfnt_off000097de.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x97DE 4324 bytes

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