PDF malware analysis — malicious · 4b5037de10ff3153

MALICIOUS

PDF

44.7 KB Created: 2020-05-19 09:48:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 0374401b3db7fee612df791ebdb51599 SHA-1: 79308fdbfa4d280b4d9ddeb0a161ceeef7c62055 SHA-256: 4b5037de10ff315303d769967bf7b13c18e6bf0f26807e49ee6e65d1f94c6038

92 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file was flagged by a machine learning classifier as malicious. It contains a large number of external links, many of which point to other PDFs hosted on domains that appear to be part of a link farm. The primary purpose seems to be directing users to these external resources, potentially for SEO manipulation or to host further malicious content. No scripts were extracted, and the document body was heavily obfuscated.

Machine Learning

Nyx PDF Classifier malicious score 0.9999

Heuristics 3

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.
External URI info PDF_URI

PDF contains an external URL action
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 http://melbourneauctions.net/uploads/1/3/0/7/130739502/130739502.html#swarovski+value+guide
- http://lamo-globals.com/uploads/1/3/0/6/130639929/wesupiponudonuz.pdf
- http://mysmartiepants.com/uploads/1/3/0/3/130323479/jijuvaxuwatipoti.pdf
- http://sprinttutor.com/uploads/1/3/0/4/130476229/f8c66caf4c8c7.pdf
- http://moorereplacements.net/uploads/1/3/1/4/131406831/padelipimat.pdf
- http://healingacrossthespectrum.com/uploads/1/3/0/6/130620382/3334758.pdf
- http://golferstail.com/uploads/1/3/0/4/130435644/bibarakifuvuk.pdf
- http://hollypointgraphics.com/uploads/1/3/0/6/130604202/289110.pdf
- http://burnsblufflodge.com/uploads/1/3/0/7/130775629/a2a9fdae8e7979.pdf
- http://caseyturben.com/uploads/1/3/0/8/130813497/60c69e23fe52b.pdf
- http://margaretsinspirations.com/uploads/1/3/0/7/130776511/rubukaka-xikimus-xedixaxuko.pdf
- http://rawaqmedia.com/uploads/1/3/0/7/130776790/ralegozero.pdf
- http://istolo.ca/uploads/1/3/0/4/130435844/a7d29c4064ba55.pdf
- http://artistsgivingbydesign.com/uploads/1/3/1/6/131606234/3087005.pdf
- http://safemoneyagentlocator.com/uploads/1/3/1/4/131406506/kedafigap.pdf
- http://qaejobs.com/uploads/1/3/1/3/131384583/ae3cef443d38c.pdf
- http://battlegroundfp.com/uploads/1/3/1/8/131857580/4282912.pdf
- http://gsaatn.com/uploads/1/3/1/3/131398097/7246012.pdf
- http://slbconsultingservices.com/uploads/1/3/0/9/130969026/7912206.pdf
- http://tdkessler.com/uploads/1/3/0/4/130477083/fa4dd.pdf
- http://businessfurniturecleaning.com/uploads/1/3/1/4/131436978/307403.pdf
- http://donlagreca.com/uploads/1/3/0/3/130313504/razixebik-suxalij-sovosevupaji-maresejen.pdf
- http://epistemy.info/uploads/1/3/0/5/130550956/wuzatej-sitapo.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_off00006b9c.bin` `2dbebc7b3474b8aa14f3e65b9703f208aa8da9ef5e576d195cd8300e29a7c2cf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B9C	10980 bytes
`font_01_sfnt_off0000916d.bin` `c988415812f594187b0a0ed75dc52802e798e1695b49bd300f8412a65040a449`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x916D	16204 bytes

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