Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fbe0ffc06ce3343…

MALICIOUS

PDF

45.0 KB Created: 2020-08-14 01:05:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d38a75c0ce4117bd53952ba5d3415a3 SHA-1: 36abc7d5953a6ad0493efec28851cb7f597771b2 SHA-256: 8fbe0ffc06ce3343e96b4916b26edf3625eb6eafeb8d4090ba32e22f3e4ea163
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to `https://ttraff.ru/pify?keyword=free+photography+business+card+templates+photoshop`. This URL is embedded within the document body, disguised as a free template download. The file also contains a large number of embedded links, many of which point to Shopify domains, but the primary redirector is the most concerning IOC. The document body itself is heavily obfuscated but contains the malicious URL and references to templates, reinforcing the lure.

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.ru/pify?keyword=free+photography+business+card+templates+photoshop
    • http://files.glacier-basecamp.com/uploads/1/3/0/8/130874324/ba991.pdf
    • http://kusitot.gsportz.com/uploads/1/3/0/7/130776279/jinelos_natafodizusopu.pdf
    • http://files.igseries.com/uploads/1/3/0/8/130814106/286450.pdf
    • https://cdn.shopify.com/s/files/1/0452/3058/8064/files/receipt_for_child_care_services.pdf
    • https://cdn.shopify.com/s/files/1/0432/6565/4946/files/kimaguderetelodune.pdf
    • https://cdn.shopify.com/s/files/1/0431/8806/0321/files/timer_for_1_second.pdf
    • https://cdn.shopify.com/s/files/1/0432/8236/6629/files/kawugijigusore.pdf
    • https://cdn.shopify.com/s/files/1/0433/6123/9192/files/gatoberuluganake.pdf
    • https://cdn.shopify.com/s/files/1/0437/9957/6733/files/annotate_documents_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/1455/3763/files/69004560879.pdf
    • https://cdn.shopify.com/s/files/1/0438/4745/0789/files/simple_contract_template.pdf
    • https://cdn.shopify.com/s/files/1/0429/5294/9913/files/wuxapolisepipenew.pdf
    • https://cdn.shopify.com/s/files/1/0434/9083/6632/files/97360624663.pdf
    • https://cdn.shopify.com/s/files/1/0427/9051/8940/files/nanegonino.pdf
    • https://cdn.shopify.com/s/files/1/0432/2387/5746/files/51616939599.pdf
    • https://cdn.shopify.com/s/files/1/0433/8063/7861/files/tolataferamas.pdf
    • https://cdn.shopify.com/s/files/1/0430/4050/6009/files/wesevu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0790/9794/files/buride.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_off00005ffd.bin
9aa18714f175e135e197f0988cba1ae223e34b2bc88e9b178769108dbc53b0e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFD 5564 bytes
font_01_sfnt_off000072bc.bin
c9455e656edf4c502561520aabc6cc38f432e477d684d704cd74b749ba12ec1a
pdf-font-stream PDF embedded font (sfnt) at offset 0x72BC 10620 bytes
font_02_sfnt_off00009684.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x9684 4324 bytes