PDF malware analysis — malicious · e35c9e81fbb5b666

MALICIOUS

PDF

101.1 KB Created: 2021-03-28 19:59:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c5b5fa10dd88c81485bedcd65a6706f9 SHA-1: 29f7d84eebbb655821e8a328abff976c1b58e2c8 SHA-256: e35c9e81fbb5b66670951f05b8469855d2975e3d90c81cd4ca25701f4c0ba15c

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains an embedded URL that redirects to a suspicious domain, masquerading as a search result. This indicates a phishing attempt to lure users to a malicious site. The ML classifier and ClamAV detection strongly support the malicious nature of this file.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://midufefew.ru/strik?utm_term=what+is+an+example+of+rational+choice+theory
- https://cdn-cms.f-static.net/uploads/4482027/normal_601c5f013c311.pdf
- https://cdn-cms.f-static.net/uploads/4384633/normal_5fd660c10650f.pdf
- https://cdn-cms.f-static.net/uploads/4389793/normal_5fd86040995e5.pdf
- https://cdn.sqhk.co/laxefotogulo/icicghr/pongo_101_dalmatians_2.pdf
- https://cdn.sqhk.co/gitovera/dhaiiIf/mlb_schedule_2020_st_louis_cardinals.pdf
- https://cdn.sqhk.co/jogekiluse/g3vl2vz/end_meme_song.pdf
- https://cdn-cms.f-static.net/uploads/4446915/normal_6045f67e49c70.pdf
- https://cdn.sqhk.co/fiwujumejuf/gi7cL7e/death_stranding_road_23.pdf
- http://famexukox.22web.org/fepajo.pdf
- https://cdn-cms.f-static.net/uploads/4480397/normal_5fd275c40f86e.pdf
- http://depusapo.mypressonline.com/miveratodokuluk.pdf
- https://cdn-cms.f-static.net/uploads/4471971/normal_60164ec27b1d8.pdf
- https://cdn-cms.f-static.net/uploads/4459059/normal_6049bccebe29e.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://lobowubuzo.epizy.com/lateral_thinking_meaning.pdf
- http://bememikat.onlinewebshop.net/social_factors_affecting_mental_health.pdf
- https://s3.amazonaws.com/tibanepoxilibud/44665518391.pdf
- http://pibuluxe.rf.gd/antony_and_cleopatra_book.pdf
- https://s3.amazonaws.com/ronenitevodo/silibukezubura.pdf
- https://s3.amazonaws.com/xijilesuzuxo/gupanav.pdf
- https://s3.amazonaws.com/fedure/cccam_ipk_blackhole.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_off00014a9a.bin` `9644b1661298fa673562f7b7da13849d36245855265283c6504d802ebceb5bce`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x14A9A	5436 bytes
`font_01_sfnt_off00015d0a.bin` `87fdcc7681f2cc07d16f5a072d6613ce13f5ec154854966b3cc84d6b38e142c2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x15D0A	13024 bytes

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