PDF malware analysis — malicious · bfe989cf5356ee68

MALICIOUS

PDF

48.9 KB Created: 2020-07-28 19:05:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3da340ab87c07de9bbd72598a2f59d06 SHA-1: a31a5bd4b00cf3e4302bcb65c098041a94adbf6d SHA-256: bfe989cf5356ee682d5a8b9de4aa1c2045dadb90f03d154e11ab599cf9e7c759

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. Additionally, it exhibits a PDF link farm, with numerous links hosted on cdn.shopify.com and other domains, suggesting an attempt to manipulate search engine results or distribute further malicious content. The document body is heavily obfuscated and contains metadata indicating it was generated by wkhtmltopdf.

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=letterhead+samples+templates
- http://files.sincerelythecraft.com/uploads/1/3/2/6/132696512/vubukekapebi_mugafepos.pdf
- http://files.peascommunity.org/uploads/1/3/0/7/130740258/wotesazem_jopoxu_loxoribujisawul_xeraruji.pdf
- http://files.markhamgolf.net/uploads/1/3/1/3/131384771/76463.pdf
- http://files.grantdemingneighborhood.org/uploads/1/3/1/4/131437438/cbc9912f66396f3.pdf
- http://files.markhamgolf.ne
- https://cdn.shopify.com/s/files/1/0431/2206/5557/files/59397407513.pdf
- https://cdn.shopify.com/s/files/1/0428/4294/7751/files/vagonurageborajijifip.pdf
- https://cdn.shopify.com/s/files/1/0431/9785/7954/files/katotoza.pdf
- https://cdn.shopify.com/s/files/1/0433/5756/9176/files/dujewizibunediru.pdf
- https://cdn.shopify.com/s/files/1/0431/2589/9421/files/xanopusexigusavilakiritox.pdf
- https://cdn.shopify.com/s/files/1/0431/1079/3370/files/276205513.pdf
- https://cdn.shopify.com/s/files/1/0431/7639/4901/files/gurufuvatudip.pdf
- https://cdn.shopify.com/s/files/1/0428/4828/8934/files/velagujunofut.pdf
- https://cdn.shopify.com/s/files/1/0431/4641/2188/files/15432794261.pdf
- https://cdn.shopify.com/s/files/1/0429/5216/3481/files/vojipol.pdf
- https://cdn.shopify.com/s/files/1/0432/6300/0734/files/33560244925.pdf
- https://cdn.shopify.com/s/files/1/0429/7415/0809/files/bapesufubunujowugur.pdf
- https://cdn.shopify.com/s/files/1/0437/8152/1560/files/13647701610.pdf
- https://cdn.shopify.com/s/files/1/0429/2935/6959/files/82495766925.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00008447.bin` `d3ef7f975750feddeb1534ef740993fc93c7bfb6c8496975fa6492792cdb43e7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8447	4664 bytes
`font_01_sfnt_off00009412.bin` `542f3054aa37df5e34ad4a59ac0b07b0603868af70d81ef6279be5086177e875`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9412	10080 bytes

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