PDF malware analysis — malicious · 176b53594ebbdb57

MALICIOUS

PDF

73.6 KB Created: 2021-03-05 04:16:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23

MD5: d7e461a8b9531efb8405ad66e4ad903f SHA-1: 4630383d43bcb1b6f7f3d9cabcc1c272c4c61d49 SHA-256: 176b53594ebbdb579f14c312d7fa6d0f402d110b78bffc16f508b1529be51b23

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, specifically as a phishing trojan. It contains numerous embedded URLs, with a primary focus on `https://baarspo.ru/award?keyword=john+kehoe+books+mind+power+pdf` and `http://kaxesurodiwewok.iblogger.org/nagonivovi.pdf`. The heuristic `PDF_SEO_DISPOSABLE_LINK_FARM` indicates the PDF is designed as a link farm on disposable hosting, reinforcing the phishing or malware distribution intent.

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://baarspo.ru/award?keyword=john+kehoe+books+mind+power+pdf PDF link annotation
- http://kaxesurodiwewok.iblogger.org/nagonivovi.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4473039/normal_60064574e9885.pdfIn PDF document text
- http://leafester.online/fijerolelegulugbifzb.pdfIn PDF document text
- http://form-lnstagramverifiedbadges.com/mijuxopotofujanapazodita2b546.pdfIn PDF document text
- http://ruwegekugite.22web.org/35360265130.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4424341/normal_5ff77aaa557d5.pdfIn PDF document text
- http://betmoy57.com/buy_acrylic_sheet_singaporecx8iw.pdfIn PDF document text
- http://dosaxixapaxa.medianewsonline.com/nogozixosowena.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408864/normal_5fd153bd4007b.pdfIn PDF document text
- http://oneplusonemain.xyz/agricola_all_creatures_big_and_small_rulesgm583.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
- https://78905da9-dd21-4190-abaa-c894c042e703.filesusr.com/ugd/851c7c_ad5eceb41b874c03b60bc547a199115b.pdf?index=trueIn PDF document text
- http://japinoxizidunub.myartsonline.com/gisexo.pdfIn PDF document text
- http://dolevegun.epizy.com/16753743396.pdfIn PDF document text
- https://156bb51f-0b62-477f-88ca-8620af00812b.filesusr.com/ugd/e3ff21_bfeb67c3331e4fab944edd0d4b95da76.pdf?index=trueIn PDF document text
- http://validexa.epizy.com/how_to_find_penny_stock.pdfIn PDF document text
- http://jepokigebi.epizy.com/loxivovanej.pdfIn PDF document text
- http://kosezofejesuxef.atwebpages.com/56390924439.pdfIn PDF document text
- https://6e37e838-c278-4d46-baa9-25b8497af200.filesusr.com/ugd/fbcb80_8ee3c050b29347988d2b96b8327fc4c8.pdf?index=trueIn PDF document text
- http://nupadamemal.epizy.com/69019184942.pdfIn PDF document text
- https://02664c88-84e5-42fa-aae3-682d3a0d4328.filesusr.com/ugd/39d081_1aca782d5c20447ca42ad362ef9da836.pdf?index=trueIn PDF document text
- https://dec4a425-646e-450a-80ca-a73a75d058ad.filesusr.com/ugd/ba3095_192cd7d57b434d4b8e754cf5f1113ff5.pdf?index=trueIn PDF document text
- http://zokadulozebeza.rf.gd/8721589770.pdfIn PDF document text
- http://rorazizaxaf.atwebpages.com/17618432334.pdfIn PDF document text
- http://nunozufivov.epizy.com/does_ikea_malm_bed_need_slats.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_off0000d89b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD89B	5032 bytes
SHA-256: `2ddd9e29ff1615ab7701286c2cfa3b27fa95504e194487155b18327e16e05fa8`
`font_01_sfnt_off0000e97d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE97D	9688 bytes
SHA-256: `551b39ca2aabe7ed9e4867d3f38888abf216a7f40584222f9ea2c34e5cbe57c4`
`font_02_sfnt_off00010a93.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10A93	4324 bytes
SHA-256: `0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333`

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