PDF malware analysis — malicious · da8cf07b945633ac

MALICIOUS

PDF

77.3 KB Created: 2021-02-27 10:49:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 43855e478f3fe94e264a0da8b8a86bce SHA-1: e68175977d8eb2782b30808a1a3622ed1fb5e55f SHA-256: da8cf07b945633acd01e5f6ed2565d1285a003dab05e6f78484b71f6a6104afe

104 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. The embedded URL points to a suspicious domain, likely serving as a lure for users to download a payload. The presence of a 'download button' heuristic further supports the phishing lure attack pattern.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON

Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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://midufefew.ru/aws?utm_term=2012+end+of+the+world+movie+download+in+hindi+filmyzilla
- http://bloodcraft.online/i_am_what_i_think_you_think_i_am_meaning_in_hindisfzxo.pdf
- http://pujugekan.iblogger.org/platform_bed_made_with_ikea_cabinets.pdf
- http://iwhite.space/86284976782bqrua.pdf
- http://dikerulaba.22web.org/2717910063.pdf
- https://cdn-cms.f-static.net/uploads/4444117/normal_600e4423816db.pdf
- http://de-bewertung-id2842384.icu/91738878834vttgv.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/fopalew/mopta_lesson_plan_word_document.pdf
- http://nafivinada.rf.gd/7221313107.pdf
- http://gagemusogigubew.epizy.com/carson_crying_format.pdf
- http://jakosorer.epizy.com/one_signal_push_notifications_android_not_working.pdf
- https://s3.amazonaws.com/nitirew/feveramodit.pdf
- http://feliruxitekul.epizy.com/naruto_shippuden_ultimate_ninja_heroes_2_apkpure.pdf
- http://wefexafunedex.epizy.com/croup_treatment_guidelines_uk.pdf
- https://s3.amazonaws.com/jufowokedunod/31217708036.pdf
- https://s3.amazonaws.com/tevigotu/arnold_j_toynbee_libros.pdf
- https://s3.amazonaws.com/jupudizadid/florida_statutes_llc_annual_report.pdf
- https://s3.amazonaws.com/bezutu/cash_money_g_apk_update.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_off0000f161.bin` `a39f049ca079fd15dc3d5db2324d36d4864f4049dc56d1ef5672575725536559`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF161	5504 bytes
`font_01_sfnt_off0001041e.bin` `755e4812ad25357692e10a9ae5b6edcc35d733a3dc960e517f31c7ee954e3ef6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1041E	10408 bytes

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