PDF malware analysis — malicious · 5f01a17602a3dbed

MALICIOUS

PDF

75.2 KB Created: 2021-03-18 07:05:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 6d0b38919187e7d0bea80732d09d2fac SHA-1: 745912fbdc4d389180f89b6210266bf62d542f71 SHA-256: 5f01a17602a3dbed71b2cf6e556c1b593b0260627fba512c81adfdc2b3c98b26

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains numerous embedded URLs, with one prominent URL pointing to 'lozipotod.ru', suggesting a phishing or malware distribution attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the PDF is structured as a link farm on disposable hosting, further supporting the malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://lozipotod.ru/123?utm_term=cartoonz+crew+new+song+2018 PDF link annotation
- https://cdn-cms.f-static.net/uploads/4426688/normal_604f10f33a16b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4474999/normal_60217bc16af52.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365649/normal_5fd76c5321ae6.pdfIn PDF document text
- http://mogoxopedutisaw.iblogger.org/11941688821.pdfIn PDF document text
- http://zipufofofize.22web.org/corsair_aura_sync_plugin.pdfIn PDF document text
- https://manadazalivufud.weebly.com/uploads/1/3/4/3/134358645/dbee3fb.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4371265/normal_5fefb3bd6997a.pdfIn PDF document text
- https://xoxomupufolud.weebly.com/uploads/1/3/0/9/130969418/fetutamogud-xulat-faposedu.pdfIn PDF document text
- https://gurazelifu.weebly.com/uploads/1/3/0/8/130874247/xojoteluwig-mudata-notiwolixexi-pemidadinaf.pdfIn PDF document text
- http://tegonur.22web.org/natibuzajefuroni.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/d3a47b19-35f5-4027-afae-6a068fac54d0/karcher_k7_pressure_washer_instructions.pdfIn PDF document text
- https://ca3ec1ac-6ff7-4c8f-ae0f-86a30d86e335.filesusr.com/ugd/3615fb_ca0037e52c8c4f77b22611b1b598c299.pdf?index=trueIn PDF document text
- http://suraluw.rf.gd/29402382769.pdfIn PDF document text
- http://dasudigakufise.rf.gd/midnight_sun_twilight_movie_where_to_watch.pdfIn PDF document text
- http://taxatix.epizy.com/72589204845.pdfIn PDF document text
- https://cf176ec6-4820-456b-adf9-61e5f06c968f.filesusr.com/ugd/43d598_f663998d9131411b832e1c85748b84e6.pdf?index=trueIn PDF document text
- https://14319df0-7947-4f0d-bbb3-eaa17d5eb23e.filesusr.com/ugd/c45f38_3ad304c86f404612b1207feae5593058.pdf?index=trueIn PDF document text
- http://rotekewebi.rf.gd/optavia_program_guide.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/335bcb58-ae81-4eb2-bbfb-afa856658452/cfa_level_1_exam_results_date.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/134edd59-9c49-4493-ba91-0e03fbc98c5c/what_is_the_graphical_method_of_vector_addition.pdfIn PDF document text
- https://217ba8a6-026c-4a9e-b1ce-2eadff0a4a08.filesusr.com/ugd/3d7af5_c4d3107f071e43b980231f2ba65eeed7.pdf?index=trueIn 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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d212.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD212	5504 bytes
SHA-256: `41f477af8f4b76447c528597c441f90a6f172e26796236e5b65104918426634c`
`font_01_sfnt_off0000e4f4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE4F4	11084 bytes
SHA-256: `a3da7cc89c4621a3b48c397bc0810cdaf25f3ec637ffae87e110e02edc6c7aad`
`font_02_sfnt_off00010a2b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10A2B	16140 bytes
SHA-256: `159427b32ed66bfbde86def5e6c2992bde67dfb25400c4000a37c9b59b949b61`

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