PDF malware analysis — malicious · e72cd617e8d3aa35

MALICIOUS

PDF

77.8 KB Created: 2021-03-15 16:08:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13

MD5: 86db7282bebf28549407ce27ac915c2c SHA-1: 4973cf2f1eda6b84c549d380d194902479a1976e SHA-256: e72cd617e8d3aa351e0fac8cf03b66269f416a1375b0efabac079aa0d76e58b3

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains references to 'Itunes english only' and the authoring application 'wkhtmltopdf', suggesting a lure for users seeking software. The presence of external URIs pointing to domains like 'botokaw.ru' and 'scienceontheweb.net' strongly suggests these are used for phishing or to download further malicious payloads.

Machine Learning

Nyx PDF Classifier malicious score 0.9960

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://botokaw.ru/123?utm_term=itunes+english+only PDF link annotation
- http://ratedewu.scienceontheweb.net/31017397206.pdfIn PDF document text
- http://jebifawulu.mywebcommunity.org/29681860997.pdfIn PDF document text
- http://presalon.xyz/percy_jackson_and_the_singer_of_apollo_world_book_day_2019rh52d.pdfIn PDF document text
- http://fabimepela.22web.org/galovazunolunarekulemeza.pdfIn PDF document text
- http://noxaduva.mypressonline.com/nujifaxifopuj.pdfIn PDF document text
- http://fakaripeti.xyz/rupepemepanajezowdm.pdfIn PDF document text
- http://redpandarecycling.com/arsene_wenger_bookjgyia.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4382418/normal_5fe4a478229e2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4415326/normal_603ef943ddafb.pdfIn PDF document text
- http://pressit.space/18631933851k7zk2.pdfIn PDF document text
- http://dawezedelofeda.scienceontheweb.net/lapen.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374021/normal_6026563d87d0c.pdfIn PDF document text
- http://mixed-rootwork.com/motorola_talkabout_t800_two-way_radios_2pk81zt5.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://lulikeleweworup.epizy.com/aaxa_p300_manual.pdfIn PDF document text
- https://s3.amazonaws.com/tometubufimopim/laws_of_indices_a_level_worksheet.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a2d0a6a4-e433-4c22-8750-c72d9a57f463/kumajibifubuz.pdfIn PDF document text
- https://s3.amazonaws.com/sabegokek/kerala_psc_malayalam_grammar_questions_and_answers.pdfIn PDF document text
- http://kinadofi.epizy.com/easy_way_to_learn_medical_billing_and_coding.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e1d08a7c-2a95-4863-92a3-3566d3912227/tv_ears_replacement_headphones.pdfIn PDF document text
- http://wenuwobowikowax.rf.gd/27011179357.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/328dd97c-6a8b-4064-b6f5-39df5b02f91d/milwaukee_safety_glasses_home_depot.pdfIn PDF document text
- https://s3.amazonaws.com/jinabom/the_360-degree_leader_book_summary.pdfIn PDF document text
- https://s3.amazonaws.com/pegozegi/matisirilazesebenu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a692a4af-5b25-4e8a-9e72-a3978cc8b6a1/55129996978.pdfIn PDF document text
- https://s3.amazonaws.com/watajive/dung_beetle_information_facts.pdfIn PDF document text
- http://josuxak.atwebpages.com/42493245182.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f476.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF476	4680 bytes
SHA-256: `e2d97ec66219729fe5f61a3d92e15b0e2aa341698dbe6be717386c29256f9c42`
`font_01_sfnt_off0001046e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1046E	10908 bytes
SHA-256: `b942b1fff55946f22d230afb9c63df5a0e4fd7aba1112c72b7127e09ba516751`

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