Malicious PDF — malware analysis report

Static analysis result for SHA-256 e06f7ebf59085a0e…

MALICIOUS

PDF

73.2 KB Created: 2021-03-11 08:29:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 0f78f224570ce5a689eabf3f7737986c SHA-1: 3d86d79175d5efbc6819374216e92502241e1065 SHA-256: e06f7ebf59085a0e7eb407138e3014c9442f272007952506b2ecd0120aaa5a7d
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, a common tactic for link farms or phishing sites, as indicated by the 'PDF_SEO_LINK_FARM' heuristic. The embedded content, though heavily obfuscated, appears to be a lure related to 'Acer laptop battery price in bd', directing users to potentially malicious URLs like https://ponafet.ru/strik. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for distributing further malware or conducting phishing operations.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9989

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation 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://ponafet.ru/strik?utm_term=acer+laptop+battery+price+in+bd PDF link annotation
    • https://cdn.sqhk.co/velijituma/jdhaihI/telemedicine_jobs_near_me.pdfIn PDF document text
    • http://wekanisa.scienceontheweb.net/graco_milestone_all_in_one_car_seat_cup_holder.pdfIn PDF document text
    • https://xutifapob.weebly.com/uploads/1/3/2/7/132712150/vijekeburolaro-xebaluz.pdfIn PDF document text
    • https://zedurobarudavur.weebly.com/uploads/1/3/4/0/134018347/04740.pdfIn PDF document text
    • https://cdn.sqhk.co/zovaratigu/a4l2Drn/palojuxapi.pdfIn PDF document text
    • http://winoxolupuvil.getenjoyment.net/lebopowebelafezulova.pdfIn PDF document text
    • https://ziliseze.weebly.com/uploads/1/3/4/8/134855349/4579457.pdfIn PDF document text
    • https://gafajabi.weebly.com/uploads/1/3/4/8/134880466/dirajereze.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/gdgjjj9/59536851671.pdfIn PDF document text
    • https://xutafutixon.weebly.com/uploads/1/3/4/5/134576274/torawupilivo_jiwekojiladulo_pidometikub.pdfIn PDF document text
    • http://xarapover.mygamesonline.org/international_convention_on_biological_diversity.pdfIn PDF document text
    • https://cdn.sqhk.co/bizujutenifo/tXhihhR/sprinkler_hydraulic_calculations_excel.pdfIn PDF document text
    • http://ganitigusawev.mygamesonline.org/is_bread_dairy_free.pdfIn PDF document text
    • https://cdn.sqhk.co/tinulafi/loAcjcA/63129372965.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/solonebosop/destination_wedding_checklist.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2b51afb-925e-4edb-9c92-1242c0f7db6c/sagelebesanuxi.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/21581022582.pdfIn PDF document text
    • https://s3.amazonaws.com/wifukedot/calculating_percentages_without_a_calculator_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/121eefa5-6e66-457a-9cc7-285cc1ecd443/59147230142.pdfIn PDF document text
    • https://s3.amazonaws.com/paxuvagal/92447404637.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59e21c9b-61ab-492f-9b0f-f9931ba768bb/modern_political_thought_book.pdfIn PDF document text
    • https://s3.amazonaws.com/kotodur/bewofubofubosudavadasofej.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1ed75e1-93a3-4d52-92b5-6b465cc222f2/scalzi_old_mans_war_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/kitigavatizelexi.pdfIn PDF document text
    • https://s3.amazonaws.com/fadadedezeker/does_taco_bell_serve_breakfast_anymore.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d636.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD636 5120 bytes
SHA-256: ada17be54a10ab2266f113ff8f3056599c9e0035c3e738455d9f7b95a08b830a
font_01_sfnt_off0000e7af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7AF 3852 bytes
SHA-256: 71c98f1f0ae2ef9333828ee85ea83c9551a83b06002846ea3a22cec639e85686
font_02_sfnt_off0000f3ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3AE 10300 bytes
SHA-256: cb8f65fb4e442807604afdbc896d3489f0dfd1025eca241e3f02a1627346c74e