PDF malware analysis — malicious · e33602a0bc0b7ab0

MALICIOUS

PDF

86.6 KB Created: 2021-03-26 16:46:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13

MD5: 675f7a078fee3b982599478269d43c2d SHA-1: cabf5f22af9084566c8e46aa88a36253b8bc9d6d SHA-256: e33602a0bc0b7ab0f5c929be9d348db993d077541ce4496dc1c84e87ad598785

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains numerous external URIs, including one pointing to 'druttle.ru', which is likely part of a phishing or malware distribution scheme. The presence of embedded URLs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic suggest the document is designed to redirect users to potentially harmful websites.

Machine Learning

Nyx PDF Classifier malicious score 0.9990

Heuristics 5

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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/123?utm_term=virtual+villagers+pc+game PDF link annotation
- http://reduslim-shop.site/dd_5e_wild_sheep_chasevdr3p.pdfIn PDF document text
- http://mezoterilijixa.22web.org/android_developer_cv_template.pdfIn PDF document text
- http://xofebuledat.scienceontheweb.net/histologie_appareil_respiratoire.pdfIn PDF document text
- http://pogakegi.22web.org/parezulokubufawoxarem.pdfIn PDF document text
- http://bewujasixi.mywebcommunity.org/affairscloud_monthly_2020.pdfIn PDF document text
- http://skidki-day.store/41469872535ls7pr.pdfIn PDF document text
- http://jushq.pro/behringer_eurorack_ub2442fx-pro_ebay9opej.pdfIn PDF document text
- http://rapoxarawiwalo.sportsontheweb.net/basic_components_of_pneumatic_system.pdfIn PDF document text
- http://finoginujowiwi.mypressonline.com/how_to_read_your_birth_chart_wheel.pdfIn PDF document text
- http://laulu-go.ru/xusivilebmwtn.pdfIn PDF document text
- http://nibelv.xyz/xofapisojuwevomibob9vfwp.pdfIn PDF document text
- http://itasda.online/how_is_military_buy_back_calculated75pgw.pdfIn PDF document text
- http://lewulumotuf.iblogger.org/matoxiboto.pdfIn PDF document text
- http://badamow.iblogger.org/logitech_g700s_battery_life.pdfIn PDF document text
- http://stonersfranchise.com/xinuganerowuranezalibikeuhug1.pdfIn PDF document text
- http://negeduji.66ghz.com/85849346970.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://tuzuxutetug.atwebpages.com/ukulele_chord_free.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/16fe903c-c98c-428d-87dc-9a0462c779d1/tazisifobuxoruzo.pdfIn PDF document text
- http://puribisipup.atwebpages.com/cementation_of_all_ceramic_crowns.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/549aa707-f407-4749-8a1c-764d0d74dd1e/pentair_easytouch_8_function_control.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/6a6154f4-50f4-4631-ab40-fb30474171d5/sennheiser_ew100_g3_handheld_price.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e258e519-17b2-460d-80ac-3d080c04f7f7/how_to_be_a_good_12_step_sponsor.pdfIn PDF document text
- http://dojafeduzig.myartsonline.com/ripowid.pdfIn PDF document text
- http://panexorumilogim.myartsonline.com/adenitis_mesenterica_causas.pdfIn PDF document text
- http://pazepoxi.atwebpages.com/does_jellyfish_immortal.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00010753.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10753	4944 bytes
SHA-256: `70fcea60a276d9c62c74098cdb1ad87cd672156ff2a15ce25e1e0f0b512d5027`
`font_01_sfnt_off00011836.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11836	11556 bytes
SHA-256: `201a53ff6151e116c330c495fd001ce4a09f67505fdcdb9524747761d8411cb1`
`font_02_sfnt_off00013eb4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13EB4	4324 bytes
SHA-256: `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`

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