PDF malware analysis — malicious · 57b1347597d7eb57

MALICIOUS

PDF

80.3 KB Created: 2021-05-08 03:59:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 37fc357b7d1d047b8aa29c18e3e9d4c0 SHA-1: c3dcd0218647b5216b984795cb9d9c5c1eafabd9 SHA-256: 57b1347597d7eb570bdaf173cf9901e254c121a11f16fd659d639a350052991e

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains an embedded URL pointing to a suspicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 4

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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://fokemale.ru/strik?utm_term=d+and+d+books+amazon
- http://wewofif.scienceontheweb.net/80650316643.pdf
- https://madonosole.weebly.com/uploads/1/3/4/5/134582414/labinemi.pdf
- http://dewisazovuvoxi.mywebcommunity.org/43221197137.pdf
- https://cdn.sqhk.co/kusukogan/ageji3c/bean_curd_sheets_where_to_buy.pdf
- https://cdn-cms.f-static.net/uploads/4393639/normal_5fd120cb7b984.pdf
- https://cdn-cms.f-static.net/uploads/4419628/normal_60272874a52f7.pdf
- https://cdn-cms.f-static.net/uploads/4454426/normal_60333eef4c5c4.pdf
- https://cdn.sqhk.co/xejexeremiso/eBcicge/44066163819.pdf
- https://cdn.sqhk.co/nojedajoze/AxiagdZ/82153022342.pdf
- https://jukejifoka.weebly.com/uploads/1/3/5/3/135311866/290a4d249d387a.pdf
- http://repizedozoful.sportsontheweb.net/cause_and_effect_worksheets_2nd_grade.pdf
- https://cdn-cms.f-static.net/uploads/4427293/normal_6055b6fb29010.pdf
- https://static.s123-cdn-static.com/uploads/4495997/normal_5fe170de663b6.pdf
- https://bizokotipalan.weebly.com/uploads/1/3/4/7/134771030/wajavitofikise_ruwamareloxab_zebaka.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/xesigeze/tarizopejob.pdf
- http://wororezijetixa.atwebpages.com/16787406347.pdf
- http://zininorenedalo.onlinewebshop.net/wapivuralatapeni.pdf
- https://s3.amazonaws.com/fadupazageraf/luzafun.pdf
- https://s3.amazonaws.com/gomaxod/mythologies_barthes_publisher.pdf
- https://s3.amazonaws.com/buganabowumujef/cv_template_microsoft_word_2010.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000fbaf.bin` `ea1b2d2f581bb1f82483359236d788465a7ae971245c45393c3abe930e7f9bb3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFBAF	5096 bytes
`font_01_sfnt_off00010d00.bin` `48a58695b4069f015aa10f88aa573103edfefc38dc42da4fe5da51d224d4ed19`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10D00	11404 bytes

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