PDF malware analysis — malicious · bbc08ad7739eb24b

MALICIOUS

PDF

71.2 KB Created: 2021-02-22 18:24:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 3304603655104531dca5e2c32cf4d977 SHA-1: dc80b7927d549f4904681b830d6804ce169e48a2 SHA-256: bbc08ad7739eb24b5a0ad882bd90cfc09c31930384d26e436004e07594ffd1e3

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, many of which point to potentially malicious domains, as indicated by the PDF_SEO_LINK_FARM heuristic. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the presence of embedded URLs and the overall structure point towards an attempt to redirect users to harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 5

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.
ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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://druttle.ru/wix?keyword=ge+8+000+btu+portable+air+conditioner+apcd08axww+manual
- https://bavodujamula.weebly.com/uploads/1/3/4/8/134855902/1f681eac.pdf
- https://fopezifu.weebly.com/uploads/1/3/4/7/134717551/bozabawed_sonaru.pdf
- https://mowolonob.weebly.com/uploads/1/3/4/8/134874237/roxer.pdf
- http://nufudaluwunuja.22web.org/commercial_cool_-_3.2_cu._ft._mini_fridge.pdf
- https://raromimuzu.weebly.com/uploads/1/3/0/8/130874361/natowif.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/wipotegadodorek/89017850629.pdf
- https://s3.amazonaws.com/temujonuwu/bochenek_anatomia_tom_1.pdf
- http://fakuzilezozo.epizy.com/loladobilev.pdf
- https://s3.amazonaws.com/zemunomipazikez/42326679868.pdf
- https://s3.amazonaws.com/jimugivos/bokeh_photoshop_plugin_free.pdf
- http://renirorevebu.epizy.com/fishing_guide_archeage.pdf
- https://s3.amazonaws.com/nonabafat/buran_ghati_trek_guide.pdf
- http://tosogaxaf.rf.gd/english_alphabet_sounds.pdf
- https://s3.amazonaws.com/forupokisip/india_banned_movies.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/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d7c7.bin` `1ca62e98ffb266e712f0ed2bf787033dc59d3e2fdc2a8e9c06bdff8173f6ecf1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD7C7	5708 bytes
`font_01_sfnt_off0000eb2e.bin` `1d0794eb484c29bf4b77d054bbda9e7af9a57419a268b58596cd0fc4f2e21cca`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEB2E	10672 bytes

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