PDF malware analysis — malicious · 0475c8800160078a

MALICIOUS

PDF

68.5 KB Created: 2020-12-22 08:29:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8583447372703368249f02f53b63749b SHA-1: 72a8c1cfc786b0d4b7888533b64c1e4119a3d9fa SHA-256: 0475c8800160078a96023290c8b9e8514cf484404f775cf5e41ba5c0ce2ea8c3

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 leads to a suspicious domain, likely intended to host a malicious payload or phishing page. The document body, though heavily obfuscated, suggests a lure related to 'clueless outfits ranked', which is a common tactic for social engineering.

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://trafffe.ru/strik?utm_term=clueless+outfits+ranked
- https://tubababekegoso.weebly.com/uploads/1/3/4/8/134880125/3912507.pdf
- https://cdn-cms.f-static.net/uploads/4474465/normal_5faf5ea82ab77.pdf
- https://cdn-cms.f-static.net/uploads/4381289/normal_5f99252598e00.pdf
- https://static.s123-cdn-static.com/uploads/4381297/normal_5fccfd8dc9695.pdf
- https://voladivilutefuj.weebly.com/uploads/1/3/4/5/134500748/ziwiturot_tesipolodonima.pdf
- https://silolovafek.weebly.com/uploads/1/3/4/7/134724041/jadajuzuzulinapuv.pdf
- https://cdn-cms.f-static.net/uploads/4457305/normal_5fb8b0b7aaa7a.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/xukonakefules/40483954066.pdf
- https://uploads.strikinglycdn.com/files/b4477f83-4820-4cdc-ad2d-882e68998621/zudeletokefijunumizoza.pdf
- https://uploads.strikinglycdn.com/files/6fa4895f-88a7-49a4-9efc-1f9be550c4e5/6627046285.pdf
- https://uploads.strikinglycdn.com/files/ab9d86cc-ba85-4649-950b-5f6fa6826a40/letters_with_d.pdf
- https://s3.amazonaws.com/vukusa/sheboygan_county_register_of_deeds_address.pdf
- https://s3.amazonaws.com/zepifudoxapo/ammy_virk_new_song_2018.pdf
- https://s3.amazonaws.com/sizabo/assassin_s_creed_identity_apk_award.pdf
- https://s3.amazonaws.com/folexapurilowe/39868749220.pdf
- https://uploads.strikinglycdn.com/files/5a78f249-4b26-4e62-bda9-93aaf6592c7f/34754531463.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_off0000d0d3.bin` `c9d7d70bbf196311fba8f01898663876039e68dfdd616ae34f4dfe308bbda78a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD0D3	4872 bytes
`font_01_sfnt_off0000e16c.bin` `30639788bbd6102b713a13d384c79dd9afb6e20b066542471b01aec1304b84ae`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE16C	10512 bytes

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