PDF malware analysis — malicious · cb87ed6d921b5fa6

MALICIOUS

PDF

79.5 KB Created: 2021-03-14 08:16:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: e69f3f3d2961f50d62958e053bb5c99f SHA-1: 2422bd5fc5cf7a756adac242e4d7be922b18964a SHA-256: cb87ed6d921b5fa63d6d594137133d1b1bebbef9d526b494abeaedf477e4ca35

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a lure related to "Walmart cashier training online prepaid card" and embeds a suspicious URL. ClamAV and an ML classifier flagged this PDF as malicious, specifically as a phishing trojan. The presence of embedded URLs and the nature of the lure strongly suggest a phishing attack aimed at tricking users into visiting a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://ponafet.ru/strik?utm_term=walmart+cashier+training+online+prepaid+card
- http://4338bacchus.com/angular_bootstrap_tabs_templatejrx1i.pdf
- http://esportzmlevent.com/nature_d_un_motkjarf.pdf
- http://kompledom.com/zeximodogidukarafonoja9bo4l.pdf
- http://cloudmarket.website/luxalubeboxakemebumusjz1a.pdf
- http://flipping-car.online/ariens_snowblower_dealership_near_meiav8m.pdf
- http://supermagazforsale1.xyz/tominisntd1z.pdf
- http://trokot-online.xyz/27403716423xdfb7.pdf
- http://jobware.pro/vikixetokumarefodijuwobewverhq.pdf
- http://bewujasixi.mywebcommunity.org/69935297206.pdf
- http://nawukebakesejid.iblogger.org/63950729326.pdf
- http://boost-store.net/noovie_movie_triviaw8c80.pdf
- http://fherixq.com/con_te_partiro_sheet_music_pianoc7cft.pdf
- http://dresdenpharma.ru/siwaramolc6tps.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://484a0fbd-04e0-416f-b335-41eb3f66808b.filesusr.com/ugd/228afb_aa4e7773e98c40c5a4d84747059276c5.pdf?index=true
- http://jujabezemaluwe.rf.gd/1525358141.pdf
- http://tosaxope.rf.gd/12636063325.pdf
- http://fataragoreb.myartsonline.com/41823577300.pdf
- http://bezefunoku.rf.gd/deleuze_societies_of_control.pdf
- https://18b09f4e-de4d-4c1b-9fe6-be55c63b1c00.filesusr.com/ugd/cd81e9_376cf9f553ad4f4c9a78d63f0f79b6d4.pdf?index=true
- https://79d86aa2-23c4-4aa0-a0dc-c16ac59ae55d.filesusr.com/ugd/ecb701_efbfcf25ba5d45d096e005b27c1ffba6.pdf?index=true
- 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_off0000f8b1.bin` `f85fbbce55fbcf5d913c56e8b9743e9e46bf8fbe761e249319ab15330941fb32`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF8B1	5500 bytes
`font_01_sfnt_off00010b42.bin` `fc4344fa40559e8df1b1924ab0ad5ce52b4b4d3e4844253388f3c767363a808a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10B42	10848 bytes

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