PDF malware analysis — malicious · 479e2ec05ff2eaad

MALICIOUS

PDF

73.5 KB Created: 2021-03-03 02:59:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 29e44450048b570c4c3ff01a96d1b11a SHA-1: 1b238f54c8d7960c3e9fc0783cb529004db1fcb6 SHA-256: 479e2ec05ff2eaad46d7cb34fe1160f75b29753e7104336ec46692ca75cb4775

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains an embedded URI pointing to a suspicious domain, which is likely used to host malicious content or phishing pages. The document body, though heavily obfuscated, suggests a lure related to 'Feng shui 2021 wood dragon', indicating a social engineering attempt to trick the user into visiting the malicious URL.

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://nipisod.ru/123?utm_term=feng+shui+2021+wood+dragon
- https://cdn-cms.f-static.net/uploads/4471464/normal_60114c00caf3a.pdf
- https://cdn-cms.f-static.net/uploads/4478926/normal_6039e6aec4f8e.pdf
- http://nazorizuz.medianewsonline.com/salems_lot_book_club_edition.pdf
- https://cdn.sqhk.co/vemegunir/hcgjyWc/61602636148.pdf
- https://cdn.sqhk.co/vasibejovej/hmidhaH/hide_n_seek_movie_2020.pdf
- https://static.s123-cdn-static.com/uploads/4401973/normal_5ff898c71eeb1.pdf
- http://suzamajotibe.mywebcommunity.org/waler.pdf
- http://delinapod.mypressonline.com/diwonalalek.pdf
- https://cdn.sqhk.co/marixefe/agdBgdj/11475565294.pdf
- http://siwivelijutore.medianewsonline.com/gramatica_espaol_b1.pdf
- https://static.s123-cdn-static.com/uploads/4415748/normal_5ffcb66b5946b.pdf
- https://static.s123-cdn-static.com/uploads/4485943/normal_5fce69343e472.pdf
- http://fisujerekuvij.getenjoyment.net/92434811121.pdf
- https://static.s123-cdn-static.com/uploads/4443812/normal_5fc6bfe384c04.pdf
- http://fuvesozufinefi.medianewsonline.com/fufaxufawevinolejedukapab.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://xomapagovujux.atwebpages.com/m_audio_fast_track_ultra_driver_windows_10.pdf
- http://nejimafalun.onlinewebshop.net/traxxas_stampede_2wd_vxl.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_off0000dfda.bin` `44fa9919285fdcd2d465a989b48e540378ac7bfefd03704386ceb41605f5dd57`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDFDA	5428 bytes
`font_01_sfnt_off0000f269.bin` `c23353f56edd61c4bdcc61ae255e7fc9137946529664e4ca4e5407ebaf177591`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF269	10816 bytes

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