Malicious PDF — malware analysis report

Static analysis result for SHA-256 050e7b15c2ba5e4c…

MALICIOUS

PDF

100.1 KB Created: 2021-05-04 23:57:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e432f04a76bf51ee1429459df60f42c7 SHA-1: 9eb3eeb09806b606e5eb6072625b14ddf4232840 SHA-256: 050e7b15c2ba5e4c4e7e0a3a5882fc156c47d561601433331bff1bef4bc3a0b9
116 Risk Score

Malware Insights

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

The sample is a PDF document flagged as malicious by ML classifiers and ClamAV, exhibiting characteristics of callback phishing or tech-support scams. It contains embedded URLs, including one pointing to 'botokaw.ru', which is likely part of the phishing infrastructure. While no scripts were explicitly extracted, the PDF format itself can embed JavaScript for malicious actions, and the heuristic 'PDF_URI' suggests external resource interaction.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://botokaw.ru/strik?utm_term=jbl+eon+615+price+in+philippines
    • http://waxedeb.getenjoyment.net/tuzodizuki.pdf
    • http://1xbet-regi.site/pmdg_747-8_v3_crack9a1e5.pdf
    • http://vutatux.22web.org/blue_line_library.pdf
    • http://quickpapp.online/alfabeto_colorido_para_imprimirgrnjb.pdf
    • https://zojivevu.weebly.com/uploads/1/3/6/0/136090852/6000751.pdf
    • http://dakisemakegag.sportsontheweb.net/91075617754.pdf
    • https://livubefelamujir.weebly.com/uploads/1/3/4/8/134899239/c218f9.pdf
    • http://kupimaxi.sportsontheweb.net/38912300745.pdf
    • http://gedadekenoz.mywebcommunity.org/7268290129.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tovimemiluv.epizy.com/assembly_language_programming_8085_tutorial.pdf
    • http://fosikim.epizy.com/hm_marketing_strategy_slideshare.pdf
    • http://bafopivazizaxon.rf.gd/18483574067.pdf
    • https://s3.amazonaws.com/lodazojamuva/24430288121.pdf
    • https://s3.amazonaws.com/kexamoxusinixu/dalamuk.pdf
    • https://s3.amazonaws.com/gedesisumi/idle_games_mod_apk.pdf
    • https://s3.amazonaws.com/wulotugadag/42796038782.pdf
    • http://gajewokutonixa.rf.gd/kuwenal.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013c15.bin
75e20c5271f107342b36734feff61a1d916d4aa372d70e868774377e5e3ccc80
pdf-font-stream PDF embedded font (sfnt) at offset 0x13C15 2876 bytes
font_01_sfnt_off00014650.bin
594710bb9fbbd9ae83c04805cb13bde01b60af04303b8493b9adf6e90abe0352
pdf-font-stream PDF embedded font (sfnt) at offset 0x14650 5272 bytes
font_02_sfnt_off00015839.bin
feb6e28faa663cfadfa3aad4fee6f632166892e0fa775841604835a45264ff3f
pdf-font-stream PDF embedded font (sfnt) at offset 0x15839 12120 bytes