PDF malware analysis — malicious · c69b075c2bfd3a65

MALICIOUS

PDF

37.6 KB Created: 2020-08-28 08:30:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ae13493db04d9c429295a0c459b7ece2 SHA-1: 221f1b9710082130dfb358d6d8ad2b9dbc879f73 SHA-256: c69b075c2bfd3a65273a0eaa60611ebb950200f3852d8564576c9ffd8231ebef

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a high number of embedded links, with one specifically pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated, but the presence of the malicious redirector URL and the sheer volume of external links suggest a phishing or SEO manipulation scheme designed to lead users to harmful content.

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.com/pify?keyword=andrew+cardwell+pdf
- http://tagubaw.alleganycountyrestaurantweek.com/uploads/1/3/1/0/131070420/7f488ab49b.pdf
- http://zosexep.lehnhartrm232.com/uploads/1/3/0/9/130969634/bawigaporuv.pdf
- http://files.tequilausa.com/uploads/1/3/0/7/130739309/lotejowonafit.pdf
- http://files.globalconnectionskenya.org/uploads/1/3/0/7/130776402/mazalim.pdf
- https://cdn.shopify.com/s/files/1/0432/7391/2488/files/41701051870.pdf
- https://cdn.shopify.com/s/files/1/0435/6728/4379/files/nodiki.pdf
- https://cdn.shopify.com/s/files/1/0432/8649/5400/files/29333927781.pdf
- https://cdn.shopify.com/s/files/1/0432/7027/5237/files/41076521502.pdf
- https://cdn.shopify.com/s/files/1/0430/1937/0659/files/52660928690.pdf
- https://cdn.shopify.com/s/files/1/0437/4754/1146/files/5256565884.pdf
- https://cdn.shopify.com/s/files/1/0433/1202/1662/files/69827853130.pdf
- https://cdn.shopify.com/s/files/1/0447/8536/9239/files/39030856909.pdf
- https://cdn.shopify.com/s/files/1/0431/8468/5224/files/vodka_lagake_song_ringtone.pdf
- https://cdn.shopify.com/s/files/1/0431/6125/6096/files/96755215436.pdf
- https://cdn.shopify.com/s/files/1/0435/2661/9288/files/84114834185.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pekuxiwitijumowiviw.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00004b6b.bin` `15a1f16ae60662f1e4892e046e122ffae362f068781cca68ba5212d5e954bc3c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4B6B	4600 bytes
`font_01_sfnt_off00005b14.bin` `979ddcd52cf61ea2398c4c524738411768a24ed07d6d40d13439e4789419c045`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5B14	9408 bytes
`font_02_sfnt_off00007b45.bin` `d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7B45	4324 bytes

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