Malicious PDF — malware analysis report

Static analysis result for SHA-256 263dad24e63969ae…

MALICIOUS

PDF

75.1 KB Created: 2021-03-18 12:24:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66a2aa9a1e81e81d0596576ca55c9872 SHA-1: bfc340db355f228992e255346b1e6753435d3ee3 SHA-256: 263dad24e63969aea8c8ea012cf0db9936d779a6d8904d223311fec0e59427b9
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that mimics a search result, likely to trick users into visiting a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were directly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to potentially harmful content.

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://golowaki.ru/aws?utm_term=how+do+you+install+a+dymo+labelwriter+450+turbo
    • http://opsnatur.fun/21507575318alits.pdf
    • https://xidoferowugefu.weebly.com/uploads/1/3/4/3/134348033/befasuwulenetikivoz.pdf
    • https://cdn-cms.f-static.net/uploads/4462073/normal_6033feae205a2.pdf
    • http://timinome.getenjoyment.net/which_table_saw_is_better_dewalt_or_bosch.pdf
    • https://cdn.sqhk.co/mapelimujeku/cZriagj/22943112342.pdf
    • http://rowowevu.mypressonline.com/77162298748.pdf
    • http://mozobadijoba.medianewsonline.com/48008762363.pdf
    • https://cdn.sqhk.co/luguwamuvat/l0ifHha/ghost_rider_wallpaper_download_full_hd.pdf
    • https://static.s123-cdn-static.com/uploads/4467287/normal_60017b14514d4.pdf
    • https://cdn.sqhk.co/bapuwanuvadi/PjiNggk/49623368005.pdf
    • http://tijudozi.scienceontheweb.net/blended_words_worksheet.pdf
    • http://bafiselavanebep.mywebcommunity.org/ganesh_atharvashirsha_mantra.pdf
    • http://bluebadge-support.com/672564108593gk65.pdf
    • https://pulamawuba.weebly.com/uploads/1/3/0/8/130873907/wikebim.pdf
    • http://rezumitisud.mygamesonline.org/case_files_gynecologic_surgery.pdf
    • https://cdn.sqhk.co/doburazax/cEZjfhj/tiwuvobukega.pdf
    • http://tehnoprom.org/what_does_unravel_means_in_spanishw7fvt.pdf
    • http://gidilakapajuke.mywebcommunity.org/29130401550.pdf
    • https://cdn-cms.f-static.net/uploads/4393755/normal_602f98c20b834.pdf
    • http://wutanumijejol.sportsontheweb.net/bistro_definition.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://domuromu.atwebpages.com/44300980458.pdf
    • http://zevesijuduma.atwebpages.com/62437438534.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_off0000e768.bin
fb69e596ae05402faa943b824b5e0c7c0c70e52b0c0e07c049e2c359fbdee88f
pdf-font-stream PDF embedded font (sfnt) at offset 0xE768 5620 bytes
font_01_sfnt_off0000fa8a.bin
296fb0016460fbf958bd7fcffcf79138956f00687abba990fb60ba0dffdd2edf
pdf-font-stream PDF embedded font (sfnt) at offset 0xFA8A 10652 bytes