PDF malware analysis — malicious · 9263479c8879e826

MALICIOUS

PDF

82.2 KB Created: 2021-05-17 00:16:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: ddda025eb037f9a83609e77fd586ab17 SHA-1: 7c9e02370d49b1fa5c84c10dd672733633eaaa65 SHA-256: 9263479c8879e826add9b48c3dc6e43b71c8eb96503b57eb96f9908c65521843

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains a URL disguised as a research paper title. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The embedded URL points to a suspicious domain, suggesting it is used to redirect the user to a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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+the+importance+of+qualitative+research+in+nursing
- http://rujajabejeveto.66ghz.com/3092473086.pdf
- http://zinabexodepo.iblogger.org/gorosamowuwolifuvawigave.pdf
- https://cdn.sqhk.co/jetirivotu/oiihjja/color_splash_background_hd.pdf
- https://jinajifija.weebly.com/uploads/1/3/4/8/134889339/duwidilegegusu.pdf
- http://fesebenawasoz.iblogger.org/duzanidupevuzesefaxot.pdf
- https://cdn.sqhk.co/porosobof/i4geZhb/77510981513.pdf
- https://betuvumog.weebly.com/uploads/1/3/1/1/131163564/5665602.pdf
- https://cdn.sqhk.co/kejofuvata/jjggKgg/snake_river_farms_costco.pdf
- https://cdn.sqhk.co/duzixulok/PNhbihz/shark_city_attack_shark_game.pdf
- https://musonilemif.weebly.com/uploads/1/3/4/7/134752032/9216787.pdf
- http://tefosewun.22web.org/zuwemelobupe.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://wonetone.rf.gd/dejuf.pdf
- https://s3.amazonaws.com/jujadodedaruxix/65904602508.pdf
- https://s3.amazonaws.com/pubopelej/50927194255.pdf
- http://dalotatafajadad.epizy.com/56242401216.pdf
- http://libiwozurogufo.rf.gd/19959020646.pdf
- https://s3.amazonaws.com/bamepofewalada/jopajukajunepusadet.pdf
- http://pulijivugis.epizy.com/barker_college_junior_school_uniform.pdf
- http://nolawasewunut.epizy.com/defiruru.pdf
- https://s3.amazonaws.com/lovomijelun/android_developer_jobs_in_mnc_chennai.pdf
- https://s3.amazonaws.com/towutoginadivu/integrity_and_faithlessness_trophy_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_off00010370.bin` `937ea33ef787dbd09f393a4e7060828dbbaa4a2d61f3518cc25db3355d247ca2`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10370	5628 bytes
`font_01_sfnt_off0001167d.bin` `d1e307b77559050be08801c9d832b3a0dc85ea509477277e721cae0723ff0a09`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1167D	10868 bytes

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