Malicious PDF — malware analysis report

Static analysis result for SHA-256 80dc4416bbe902c3…

MALICIOUS

PDF

72.8 KB Created: 2021-04-13 18:42:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 511915ace248b8bc6e766e3145c7b82c SHA-1: 50a6523fb824dba620fdd14491d94c42ceb7ccfe SHA-256: 80dc4416bbe902c33d82b8f42636159de3a940ce20ba1e494590a10912da9489
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI pointing to a suspicious domain, which is a strong indicator of malicious intent. The ML classifier and ClamAV detection further support this, flagging the file as malicious. The document body, though heavily obfuscated, appears to contain product-related text, suggesting a lure to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://xezojetit.ru/strik?utm_term=ruger+factory+90404+lc9+9+round+9mm+extended+magazine
    • https://cdn.sqhk.co/leluforeref/whdjjib/inside_out_lyrics_hillsong.pdf
    • http://spoonnumberone.xyz/jolojilebulobusisiwaderawwd2a.pdf
    • http://mazanatur.space/65849678472iyvbd.pdf
    • https://cdn-cms.f-static.net/uploads/4488135/normal_6011d02ee0bba.pdf
    • https://cdn.sqhk.co/savunowudob/hj8hdjf/battle_city_tank_1990_for_pc.pdf
    • http://dle-tpl.site/kogebobulupewupexum7sun2.pdf
    • https://cdn.sqhk.co/xoraxuvonaf/thdhbif/zibixafexokufekekerebol.pdf
    • https://cdn-cms.f-static.net/uploads/4414495/normal_6045a08c1f957.pdf
    • https://cdn-cms.f-static.net/uploads/4426543/normal_605e1d1890331.pdf
    • https://cdn-cms.f-static.net/uploads/4373004/normal_6021aab2109cb.pdf
    • http://tk-pobeda.site/miwazokeburabaselukuzdgbge.pdf
    • https://cdn.sqhk.co/nawakema/ihva7jf/bisapuduxedomanalate.pdf
    • http://ronifibofizet.medianewsonline.com/gaxagukakanawukiziw.pdf
    • https://cdn.sqhk.co/temirikuji/jeji1rg/arcade_games_for_sale_skee_ball.pdf
    • https://cdn.sqhk.co/jotepomi/ljjl1jd/84744830843.pdf
    • http://munasimowijuxi.getenjoyment.net/lowexom.pdf
    • https://cdn.sqhk.co/fefamujigip/jimiiYJ/mavufojalumeder.pdf
    • https://cdn.sqhk.co/jabosuve/eFHSeie/zowunitazemalux.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/titugome/bmw_320i_2008_owners_manual.pdf
    • https://s3.amazonaws.com/nitizobuv/28196436313.pdf
    • http://roveramo.atwebpages.com/simizaxekovakopa.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.

FilenameKindSourceSize
font_00_sfnt_off0000daf2.bin
29d8c8a3455c7caa11590296e8ea4a33eddcd593ae33550c3a5728a9ffb317e0
pdf-font-stream PDF embedded font (sfnt) at offset 0xDAF2 5776 bytes
font_01_sfnt_off0000eeac.bin
14a415c538c8128a6ab57bb5c0cb1a61493acbe5f09d3062807a8c0231a929fc
pdf-font-stream PDF embedded font (sfnt) at offset 0xEEAC 11484 bytes