PDF malware analysis — malicious · 9cbbd9f232010a7d

MALICIOUS

PDF

73.8 KB Created: 2021-02-28 12:52:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 19fc84d27a0a3b3c3f2442433f3d4e1c SHA-1: d0e8d188924a6b41f804571f67e828ed0edec5f9 SHA-256: 9cbbd9f232010a7de78a49a561a8a9fa1b0c111ec0c68cd32ac0af4e39afc2e6

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document flagged by ML classifiers and ClamAV as malicious. It contains an embedded URL pointing to 'ponafet.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains references to 'Ms cooperative bank subhanpura', suggesting a pretext for the malicious link. No scripts were extracted, but the presence of external URLs and the high confidence verdict indicate a malicious intent.

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://ponafet.ru/wix?keyword=ms+cooperative+bank+subhanpura
- http://ashotik.space/how_to_make_a_breakfast_nook_in_bloxburgho8nt.pdf
- https://static.s123-cdn-static.com/uploads/4486060/normal_6003e9e58e89c.pdf
- https://cdn.sqhk.co/bipuzojafa/qijdhfP/dungeon_knight_vr.pdf
- https://cdn.sqhk.co/nobegasosev/dRFeAqW/jurexulurejanonu.pdf
- https://static.s123-cdn-static.com/uploads/4374366/normal_5fcf3252b917f.pdf
- https://cdn-cms.f-static.net/uploads/4391317/normal_602aa651a52a1.pdf
- https://cdn.sqhk.co/konidadelan/Twdajjy/vegas_casino_with_most_slot_machines.pdf
- https://cdn.sqhk.co/zubejavaxuvu/hcjcMxW/infinite_word_search_puzzles_online.pdf
- https://static.s123-cdn-static.com/uploads/4466154/normal_5ffd7cde3c5d7.pdf
- http://idealica-co.site/android_police_free_appskrsfg.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/lorerexeg/boganilopixedin.pdf
- https://s3.amazonaws.com/fixararololu/93780601857.pdf
- https://s3.amazonaws.com/ligole/jopikimokunogolawuxejoki.pdf
- https://s3.amazonaws.com/vukusa/relationship_video_song_hd.pdf
- https://s3.amazonaws.com/dorobukasawituw/59467316395.pdf
- https://s3.amazonaws.com/wanalovum/sec_cert_format.pdf
- https://s3.amazonaws.com/jivagajamav/greffier_audiencier_formation.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_off0000e25d.bin` `2caa1fe37c1c13d7edaedfca35dcf614816384df8e64444119401c0a3f4d3a81`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE25D	5256 bytes
`font_01_sfnt_off0000f44c.bin` `b5edf7e544b643728c1f09e8e02c2b5a949d28df69fb34435c27422b4c549f91`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF44C	10980 bytes

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