PDF malware analysis — malicious · a1c82fe8c9f53481

MALICIOUS

PDF

90.8 KB Created: 2021-05-06 08:56:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 7e80964a9df72dc24edb3395b3900b84 SHA-1: e270c62f97738554c09cd74aa7e682e4b38d1504 SHA-256: a1c82fe8c9f53481ea4e2fdf811a1ef4744cb422ddc046ff8ce57d42d68ecfae

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged by multiple heuristics, including a critical ClamAV detection and an ML classifier, indicating malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into downloading further malware or phishing for credentials. The document body, though heavily obfuscated, appears to contain search-related terms, suggesting a lure to disguise the malicious link.

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://pelibifir.ru/strik?utm_term=netgear+gs108t+default+admin+password
- http://cafe-cok.ru/77604564652al7li.pdf
- https://cdn-cms.f-static.net/uploads/4368742/normal_606e10f03f534.pdf
- http://help-verifiedbadgecenter.com/warriors_dont_cry_summary_chapter_16p8czn.pdf
- https://static.s123-cdn-static.com/uploads/4505358/normal_5ff204172a107.pdf
- https://static.s123-cdn-static.com/uploads/4471960/normal_5ff10bea0de51.pdf
- https://cdn-cms.f-static.net/uploads/4481168/normal_604854a2b1c55.pdf
- http://istlan.fun/474963430566i3d7.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://suredutika.rf.gd/vameta.pdf
- https://s3.amazonaws.com/mujevubutukoxu/mini_dvi_port_image.pdf
- http://sekovukubetib.epizy.com/patinularepebuwijopowoze.pdf
- https://uploads.strikinglycdn.com/files/f8d33e87-d68f-4ebc-a892-a3e4353d82e7/53487027837.pdf
- https://uploads.strikinglycdn.com/files/3f1b4822-8a96-4b05-8781-71f1de418bd4/kikevibepevisulo.pdf
- https://uploads.strikinglycdn.com/files/e953f9ce-f528-4db8-a3ea-4020e5acfbbe/luwejerofonobisemisi.pdf
- https://s3.amazonaws.com/fupanabivote/49371375155.pdf
- https://s3.amazonaws.com/tobobowu/how_do_you_long_divide_decimals.pdf
- https://s3.amazonaws.com/kefefetafij/sword_art_online_light_novel_volume_15.pdf
- https://s3.amazonaws.com/kitakilesa/ds3_curse_rotted_greatwood_guide.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_off00012088.bin` `6f66a905c0efdae9393511360a64dda4f265f3a0feb12f5d1b3d79c8f555bfe8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12088	5808 bytes
`font_01_sfnt_off00013456.bin` `b3d6290d99f4540a18ed8df2a0aee666b9e6b8f973831772fdda2c7a648134b2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13456	12884 bytes

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