PDF malware analysis — malicious · 80c7d95679b6392a

MALICIOUS

PDF

69.6 KB Created: 2021-02-13 06:01:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a1311ffb3ed499a3f0b1d2b321fabea4 SHA-1: 4f3d3be576f80abd4ab549f0b68ba92595a6492b SHA-256: 80c7d95679b6392a46eac638b962081a51e48911f196ac20a7227cd4df1ae084

136 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The heuristic SE_PAYMENT_REDIRECT_LURE strongly indicates a phishing attempt related to financial instructions. The embedded URL `https://crophysi.ru/wix?keyword=letter+to+closing+bank+account+word+format` further supports this, suggesting a lure related to bank accounts. While no scripts were explicitly extracted, the ML classifier and ClamAV detection point to malicious intent, likely involving a phishing or redirection scheme.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE

Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
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://crophysi.ru/wix?keyword=letter+to+closing+bank+account+word+format
- http://begetus11ppz.xyz/fowitikaniku8nzp.pdf
- https://cdn.sqhk.co/gabazumad/ghjbijs/27375112558.pdf
- http://kaxasujigunabew.iblogger.org/conventional_implicature.pdf
- https://cdn.sqhk.co/pisimebuziz/gh0RpQ7/hello_kitty_lunchbox_game_download.pdf
- http://popularchoice.space/94491587387zgu0q.pdf
- http://store50off.info/minecraft_flux_b11_free_downloadklllg.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://rubaporejolo.rf.gd/car_accident_reporting_procedure.pdf
- https://s3.amazonaws.com/lofese/31926737215.pdf
- http://zabidogadifosis.rf.gd/maine_boat_bill_of_sale_form.pdf
- https://s3.amazonaws.com/wisuw/baby_crying_sound_effect.pdf
- http://likifodafiduno.epizy.com/65292859366.pdf
- http://febinobe.epizy.com/65231891948.pdf
- https://s3.amazonaws.com/wujapu/83026350989.pdf
- http://zudozam.epizy.com/vezaromupukobugegaki.pdf
- http://zewixezix.epizy.com/maya_3d_models_free_for_lighting.pdf
- https://s3.amazonaws.com/nokiva/lilub.pdf
- https://s3.amazonaws.com/likerajatob/14706773412.pdf
- https://s3.amazonaws.com/pululusodogi/78325726223.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_off0000d4f7.bin` `12380588a7599abaf54050be7fa4b3e52e55bd85e1452c5ff149d9cdf6b41d32`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD4F7	5580 bytes
`font_01_sfnt_off0000e7f4.bin` `3e58eb389f5cc1a8e70c5995b21a10fd86c720295c8eb12b315a73f60c164499`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE7F4	9604 bytes

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