Malicious PDF — malware analysis report

Static analysis result for SHA-256 95a2c9566894811d…

MALICIOUS

PDF

43.7 KB Created: 2020-08-22 23:49:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5e292d2d4186659ead887cc824cdfcfa SHA-1: 72afd629e6f36668000166a937dd8dca99f2aeb5 SHA-256: 95a2c9566894811d368a969dd913df676f29f84ff99f07334ca12e43619daba3
120 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, many of which are hosted on Shopify domains but point to potentially malicious content. One critical heuristic firing indicates a direct link to a known malicious redirector at 'https://ttraff.com/pify?keyword=dell+compellent+storage+center+configuration+guide'. The document body, though heavily corrupted, appears to contain metadata related to the 'Dell compellent storage center configuration guide', suggesting a lure to disguise the malicious intent. The presence of numerous PDF links indicates a link farm strategy, likely to obscure the ultimate malicious destination.

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/pify?keyword=dell+compellent+storage+center+configuration+guide
    • http://files.shopatzekes.com/uploads/1/3/1/0/131070713/sejuvok.pdf
    • http://fodeti.nigelgorskiconsulting.co.uk/uploads/1/3/0/7/130775565/7805eb6002.pdf
    • http://files.goodworks.org.uk/uploads/1/3/1/1/131163904/1033298.pdf
    • http://files.kelvynkoning.com/uploads/1/3/0/7/130776077/mizefapagalarol.pdf
    • https://cdn.shopify.com/s/files/1/0434/6265/6152/files/minion_turkey_disguise_template.pdf
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/alkalinity_definition.pdf
    • https://cdn.shopify.com/s/files/1/0440/8619/8424/files/pukonefirexasomawed.pdf
    • https://cdn.shopify.com/s/files/1/0428/2816/9375/files/85050388232.pdf
    • https://cdn.shopify.com/s/files/1/0428/9826/0124/files/kupekavunisupefefiwujudav.pdf
    • https://cdn.shopify.com/s/files/1/0428/9508/1625/files/80702418866.pdf
    • https://cdn.shopify.com/s/files/1/0438/2274/3709/files/kuat_medan_listrik.pdf
    • https://cdn.shopify.com/s/files/1/0434/8755/9833/files/change_active_to_passive_voice_exercises.pdf
    • https://cdn.shopify.com/s/files/1/0431/3556/5978/files/41248289111.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53522836856.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_off0000654e.bin
ca9ab7e9c12fa8670ecd54af53f3cbce7a26038ab76864936bafc8d644528753		 pdf-font-stream PDF embedded font (sfnt) at offset 0x654E 5476 bytes
font_01_sfnt_off000077ce.bin
b075ad1d93f41160bad15564686bc4df81e055a1229c4646049473dd457e4f0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77CE 13252 bytes

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