Malicious PDF — malware analysis report

Static analysis result for SHA-256 9442cba524397655…

MALICIOUS

PDF

45.7 KB Created: 2020-08-10 11:48:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 29d00530958f6c6a5041bcf9383cab03 SHA-1: c28555177db743f1af0f7e2b9094ccbfd6953835 SHA-256: 9442cba5243976554ac7a87579c2b4758738d24e194396d0980998485608c053
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link redirects to ttraff.cc, known malicious infrastructure. The document body, though heavily obfuscated, contains the text 'Top down approach in community development pdf' and the malicious redirector URL, suggesting a lure. The presence of numerous links and the callback lure heuristic indicate a phishing or scam attempt, likely to lead the user to a malicious site or solicit a callback for further compromise.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=top+down+approach+in+community+development+pdf
    • http://files.hemetwestvalleyffa.org/uploads/1/3/0/7/130739719/bokewofidowirej.pdf
    • http://files.soeasyservice.com/uploads/1/3/2/7/132741081/getokogom_rirot_witoxasakud_notavozapi.pdf
    • http://sadefeme.breastroanoke.org/uploads/1/3/1/4/131452903/vasokebox.pdf
    • http://files.cilentoreview.com/uploads/1/3/1/6/131636990/zepus_vajava_sawomur.pdf
    • http://files.planetdk.net/uploads/1/3/1/4/131437848/wozusovof_xavubogofile.pdf
    • https://cdn.shopify.com/s/files/1/0431/9592/4640/files/vegetable_crop_rotation.pdf
    • https://cdn.shopify.com/s/files/1/0437/4154/4600/files/88483813222.pdf
    • https://cdn.shopify.com/s/files/1/0433/3161/6923/files/95791465389.pdf
    • https://cdn.shopify.com/s/files/1/0429/6110/9155/files/jixiwupumisujawujefag.pdf
    • https://cdn.shopify.com/s/files/1/0427/9376/2975/files/12210877480.pdf
    • https://cdn.shopify.com/s/files/1/0429/9191/1066/files/28271889395.pdf
    • https://cdn.shopify.com/s/files/1/0439/2756/8552/files/appreciative_inquiry_method.pdf
    • https://cdn.shopify.com/s/files/1/0431/5620/9819/files/64191182412.pdf
    • https://cdn.shopify.com/s/files/1/0431/0866/3456/files/vogetidumelotemefog.pdf
    • https://cdn.shopify.com/s/files/1/0433/6133/7494/files/23300590849.pdf
    • https://cdn.shopify.com/s/files/1/0433/8073/6151/files/how_to_hack_into_someones_phone.pdf
    • https://cdn.shopify.com/s/files/1/0432/0477/1999/files/39050157023.pdf
    • https://cdn.shopify.com/s/files/1/0431/3966/1986/files/xifogerimolaloxonador.pdf
    • https://cdn.shopify.com/s/files/1/0432/2256/5032/files/gemeneniwowu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3698/2944/files/18198681320.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/
    • https://cdn.shopify.com/s/files/1/0432/3698/29

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007288.bin
48244ba0d37a933a3eb2f8a18ca75a62a0428b151ce6f7f726a61ad6a77f483d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7288 5420 bytes
font_01_sfnt_off000084f0.bin
6e2276bab6181785b078c53c0b21aaedd4161427ba28cf8ec7ba530ccc09de86		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84F0 10824 bytes

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