PDF malware analysis — malicious · b96a2e3f629efe3e

MALICIOUS

PDF

104.1 KB Created: 2021-03-17 00:08:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 58c17b57f4cab0780c1d10f2e60cdc0a SHA-1: ef7c7272c4a84e7ae168e0cbd6dabd480e0499ce SHA-256: b96a2e3f629efe3e01e1ec94d52d62893314dc2feb54661e6bfeff26b2db1630

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, aligning with spearphishing tactics.

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://seumenha.ru/wix?keyword=presidents+day+tournament+2020
- http://maxigafa.22web.org/how_do_i_take_my_ged_test_during_covid_19.pdf
- https://cdn.sqhk.co/nisugavu/gjdhe9Z/suxujufe.pdf
- http://itravelgr.com/evidence_for_evolution_pogil_answer_key_biologyxkrhq.pdf
- http://sarhello.online/sipadotupufegasaxepavonu8e6c.pdf
- https://static.s123-cdn-static.com/uploads/4385635/normal_5ff76e177d408.pdf
- https://static.s123-cdn-static.com/uploads/4382962/normal_5fc8dce79ee45.pdf
- http://zerulowomuv.22web.org/butot.pdf
- http://microbestdigitalmeter.xyz/99255935615u864.pdf
- https://cdn-cms.f-static.net/uploads/4383699/normal_60401a6155c3a.pdf
- https://cdn.sqhk.co/zirigajer/1hh8Jic/68881722444.pdf
- https://cdn.sqhk.co/xewafazuk/jieiaF2/formula_e_2020_schedule_jakarta.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://b5c90759-dbf8-4ccd-b12d-e23c958527f9.filesusr.com/ugd/915a55_79350933dacc4cf9b2aa7a7682e7e983.pdf?index=true
- https://6e3eaeb2-b9dd-4462-8b56-96c59beebd9a.filesusr.com/ugd/dcc11b_4b966999ade34a2faa0db22086940828.pdf?index=true
- http://wirugon.epizy.com/notification_icon_png_free.pdf
- https://7095e710-59ac-4d27-8a5a-f3bbcaf65deb.filesusr.com/ugd/418e76_b0c9b31c04fc48d88c209c8d99034201.pdf?index=true
- http://fapudimilo.rf.gd/giguk.pdf
- http://pipotaxi.rf.gd/8108570360.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_off00015bf6.bin` `0d4b36e8c34b8deb3cdb619e29df4cfb62352caefb7c2a7db1654e26f1101058`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x15BF6	5316 bytes
`font_01_sfnt_off00016df6.bin` `ca109dfb7cf0250db8cfc872e4dd62e517c8d683f5704a3864b537d5c9e171ed`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x16DF6	11428 bytes

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