Malicious PDF — malware analysis report

Static analysis result for SHA-256 95c9bb7b78c9ee1d…

MALICIOUS

PDF

107.2 KB Created: 2020-07-29 21:46:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f78242c3b3f572e3c166a6db80f8b21f SHA-1: 79825d6d02b87dcd30756d5482ec633acfb1e821 SHA-256: 95c9bb7b78c9ee1d800ebb282605adf98d142d58d459843914fc94b8dd78813f
140 Risk Score

Malware Insights

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

The PDF contains numerous links, with one heuristic specifically flagging it as a malicious redirector. Another heuristic indicates a link farm, suggesting an attempt to manipulate search engine results or distribute content. The document body, though heavily obfuscated, contains keywords related to 'cessna 210 poh pdf' and 'wkhtmltopdf', indicating a potential lure for specific users. The presence of a callback phishing lure heuristic further supports the malicious intent.

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=cessna+210+poh+pdf
    • http://files.mycitywebworks.com/uploads/1/3/1/0/131070846/rukutafibef.pdf
    • http://files.ericscottsutherland.com/uploads/1/3/0/7/130738722/rexomedikomuv_kukemeku.pdf
    • http://files.hornfree.org/uploads/1/3/0/7/130775529/gatipexib.pdf
    • http://files.magicalforestcreations.co.uk/uploads/1/3/2/6/132695663/xexaduxa.pdf
    • http://files.whollysimcha.com/uploads/1/3/1/3/131381919/452119.pdf
    • https://cdn.shopify.com/s/files/1/0427/8072/1311/files/27370060694.pdf
    • https://cdn.shopify.com/s/files/1/0431/2806/2103/files/6014087622.pdf
    • https://cdn.shopify.com/s/files/1/0434/0813/0213/files/25168684913.pdf
    • https://cdn.shopify.com/s/files/1/0432/9226/2560/files/94360514936.pdf
    • https://cdn.shopify.com/s/files/1/0433/4728/0026/files/5707109924.pdf
    • https://cdn.shopify.com/s/files/1/0428/8099/1388/files/sowibupekip.pdf
    • https://cdn.shopify.com/s/files/1/0432/6028/0982/files/fivuwazililab.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/3359516262.pdf
    • https://cdn.shopify.com/s/files/1/0431/3051/9709/files/pusifar.pdf
    • https://cdn.shopify.com/s/files/1/0432/9340/9438/files/fesadoxi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94448736580.pdf
    • https://cdn.shopify.com/s/files/1/0439/2602/8456/files/72596865340.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_off00016452.bin
6e0cbf0a93234386977edbe45045bf06f774b534a404e20d76caa4e494f2458e
pdf-font-stream PDF embedded font (sfnt) at offset 0x16452 5008 bytes
font_01_sfnt_off0001754d.bin
5b64cfa7771297050011199c365b72b86315f67fbc11c4452aec2042ee1e7a2f
pdf-font-stream PDF embedded font (sfnt) at offset 0x1754D 12988 bytes