PDF malware analysis — malicious · 702c82f3c3a9e6ef

MALICIOUS

PDF

68.6 KB Created: 2020-12-20 10:20:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15

MD5: a0279787cc10edd409958555e64a4b75 SHA-1: 16b66d8ec81f24cfbcb6dc587eff7b6b2311f969 SHA-256: 702c82f3c3a9e6ef45975e12ab9935988aaf8b8494d0e21be5ae5795e9d1c756

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 pointing to 'trafftec.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains references to 'pocket bikes games online' and authoring information suggesting it was generated by wkhtmltopdf, indicating a potential lure to attract user interaction.

Machine Learning

Nyx PDF Classifier malicious score 0.9883

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://trafftec.ru/123?utm_term=pocket+bikes+games+online PDF link annotation
- https://fiwisito.weebly.com/uploads/1/3/4/7/134715438/6484404.pdfIn PDF document text
- https://zirufifun.weebly.com/uploads/1/3/0/8/130874679/givedef_wegamobuwex_didedetirume.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4530429/normal_5fb8f2862d45b.pdfIn PDF document text
- https://roturusuwanowus.weebly.com/uploads/1/3/4/3/134363773/lavajisatilobix_zowij.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static1.squarespace.com/static/5fc71d931969b523a41ef95e/t/5fd6649e154d727871ebe09c/1607885983158/supply_chain_management_free_ebooks.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc593df27a199023ad5232a/t/5fca33b7822fbd3263e86839/1607087032603/mr_bowling_ball_shrub_size.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/82bbb864-6360-43b7-ba83-22dc2c3dc591/quel_ami_fidle_et_tendre_parole.pdfIn PDF document text
- https://s3.amazonaws.com/mukutud/52217733885.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d02a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD02A	5228 bytes
SHA-256: `45637df4d87fd979edb2843b1b14fa1f7b7abefe945c83047ef3a179894b9a8d`
`font_01_sfnt_off0000e1f1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE1F1	10728 bytes
SHA-256: `0f336085b507e68a39a0e6850c14307db2cd1ee9edabfb03c08c1fea1c7c3d63`

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