PDF malware analysis — malicious · 2e51d107c698df29

MALICIOUS

PDF

89.9 KB Created: 2021-03-15 19:53:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02

MD5: 700723c6bedc58be3ef523cd10b1a361 SHA-1: fa06a7c560f4bf007a3cb7046bed6012e2618994 SHA-256: 2e51d107c698df29b175115a0aa4a71421e063deb146974e4880c9fdd98bfab3

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document is flagged as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous external links, many pointing to disposable domains, suggesting a link farm or distribution point for malicious content. The document body is heavily obfuscated and appears to be a lure, possibly related to product manuals, to entice users to click on the malicious links.

Machine Learning

Nyx PDF Classifier malicious score 0.9989

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://nipisod.ru/wix?keyword=gopro+hero+3+black+manual+cz PDF link annotation
- https://cdn-cms.f-static.net/uploads/4376629/normal_602bdfb781b34.pdfIn PDF document text
- http://vijofogozorumi.22web.org/palofewo.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4417997/normal_5ff63906b2044.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4480598/normal_601e80c1d78ac.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4467573/normal_601e6471429a6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4376126/normal_5ff2a93ad0874.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4492245/normal_6026cc2d955cc.pdfIn PDF document text
- http://wutoxurusot.iblogger.org/curriculum_vitae_formato_chile.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4418972/normal_5fceee3551ea1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420449/normal_6019dae896d39.pdfIn PDF document text
- http://www.opentle.orgIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://167c8e7b-8160-49a2-a88e-f26749d647c8.filesusr.com/ugd/1ad47d_ca03cc0d9bf74d808136ff71d983a82d.pdf?index=trueIn PDF document text
- https://3e3188f7-d9e9-48da-9af6-4e6760718ee0.filesusr.com/ugd/4f7562_37d17e380f444823aa6f0850705d051d.pdf?index=trueIn PDF document text
- http://dilezupuforew.epizy.com/demand_promissory_note_format_in_tamil.pdfIn PDF document text
- https://s3.amazonaws.com/remeranexe/72677602517.pdfIn PDF document text
- http://lelekon.epizy.com/updo_formal_hairstyles_for_long_hair.pdfIn PDF document text
- https://s3.amazonaws.com/lebaxa/mupoxapofozabawenele.pdfIn PDF document text
- http://jaziwovapotulit.epizy.com/hobart_ft1000_spec_sheet.pdfIn PDF document text
- https://s3.amazonaws.com/zarevizebi/jidefotoraze.pdfIn PDF document text
- https://8c77b9b7-c39b-43d6-9406-6086bd2c0f93.filesusr.com/ugd/ee6770_2aca0a11d8994b8eaf84018eca3ec19d.pdf?index=trueIn PDF document text
- http://nadopiwagaf.epizy.com/xibivelelixerafoses.pdfIn PDF document text
- https://84bd2c60-91d0-47b6-9565-6ae8a6593e58.filesusr.com/ugd/963627_9c2fe5e28023494fb742af9c10c7674e.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/kavalukato/24133220004.pdfIn PDF document text
- http://molulig.epizy.com/agile_mind_rate_of_change_answer_key.pdfIn PDF document text
- http://pujakel.rf.gd/gegux.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://www.gnu.org/licenses/gpl.htmlIn 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
`stream_003_off00010632.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x10632	13856 bytes
SHA-256: `a8817244dacd641fe4c5b44f5330048702aa8acdb0340204959e739a8f14e7a3`
`font_00_sfnt_off0000f3d5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF3D5	5444 bytes
SHA-256: `3233f9035aa65fad91cd05e89e9365d6db9c70b405f41b6fb5c8b7940aa2038c`
`font_02_sfnt_off00012d2d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12D2D	13892 bytes
SHA-256: `d3ab840fbf1bbfd3f9fb2de0dcd8922965d7635ce7b283cfe27b0dfaa129ab7b`

Open this report in the interactive analyzer, or submit your own file for analysis.