PDF malware analysis — malicious · cbb06b8811b94de8

MALICIOUS

PDF

33.5 KB Created: 2020-08-02 02:03:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: aee6074e766dfd7f193395024fcd5a22 SHA-1: 42543a28e15b5df2e3ae57f7657cae8d15de408c SHA-256: cbb06b8811b94de88e57890e5ab7a728d003c967b9f6ce21ca9b20ecca241210

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=iseki+tractor+parts'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the lure text 'Iseki tractor parts' and the malicious URL, reinforcing the phishing attempt. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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=iseki+tractor+parts
- http://files.createweddingsandevents.com/uploads/1/3/2/8/132814302/2357313.pdf
- http://files.baroverbar.com/uploads/1/3/1/3/131380688/vilujekexekadi.pdf
- http://files.syimagination.com/uploads/1/3/0/8/130813111/d673831cb084cf.pdf
- http://files.eatsntreatssandusky.org/uploads/1/3/1/6/131636819/3126912.pdf
- https://cdn.shopify.com/s/files/1/0434/6196/8025/files/zetupulu.pdf
- https://cdn.shopify.com/s/files/1/0432/1869/8400/files/sample_crummey_letter.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/52876055892.pdf
- https://cdn.shopify.com/s/files/1/0438/4981/0080/files/62395705725.pdf
- https://cdn.shopify.com/s/files/1/0427/4041/6678/files/joraxe.pdf
- https://cdn.shopify.com/s/files/1/0431/9009/1940/files/csgo_default_fov.pdf
- https://cdn.shopify.com/s/files/1/0433/7028/3173/files/trauma_nurse_core_course_study_guide.pdf
- https://cdn.shopify.com/s/files/1/0436/7260/0726/files/58199665790.pdf
- https://cdn.shopify.com/s/files/1/0432/6850/5764/files/71317741201.pdf
- https://cdn.shopify.com/s/files/1/0429/9273/0275/files/tekatatejogafaniluv.pdf
- https://cdn.shopify.com/s/files/1/0428/5782/4419/files/73403344499.pdf
- https://cdn.shopify.com/s/files/1/0433/1631/4277/files/lelomi.pdf
- https://cdn.shopify.com/s/files/1/0429/1877/2903/files/90788201647.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_off0000476a.bin` `b61d7c1713e4ca9bc1f44c7c6fccd393067f73996cfdab1409a277622ee35751`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x476A	4896 bytes
`font_01_sfnt_off00005825.bin` `d7180dd704b0e44d7c4c1a9f4fa5c9001ad88e167a47f5b9fd69252d8fb3bf17`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5825	9748 bytes

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