Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ce1515ddd17ab51…

MALICIOUS

PDF

74.7 KB Created: 2021-05-18 06:52:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 9274a0cb477b82d3c24a1038a7e9d1d0 SHA-1: cde2d53f919e6198f7b1cd4f510d7e2af38fd516 SHA-256: 0ce1515ddd17ab518b3285538b702db79672619554ec847641c2abdb1e5c02fb
186 Risk Score

Malware Insights

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

The PDF document contains numerous external links, many pointing to disposable hosting services, and includes a lure related to 'Asphalt 8 hack pc 2021'. This indicates a link farm or phishing attempt designed to redirect users to malicious sites. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. No scripts were extracted, but the overall structure suggests a phishing or malware distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://mezovuduw.ru/strik?utm_term=asphalt+8+hack+pc+2021 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4448121/normal_5fcdce549e0b8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500189/normal_5ff1236e894cd.pdfIn PDF document text
    • https://tuzidatawuno.weebly.com/uploads/1/3/4/9/134902979/1749802.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466662/normal_5fddf56954333.pdfIn PDF document text
    • https://dusalunefawotof.weebly.com/uploads/1/3/4/4/134487283/a35fa88291cc.pdfIn PDF document text
    • https://jizojalagakamu.weebly.com/uploads/1/3/4/8/134886497/varebeleberupek.pdfIn PDF document text
    • https://woremudof.weebly.com/uploads/1/3/4/7/134701645/da3b049568.pdfIn PDF document text
    • https://gexawagezawa.weebly.com/uploads/1/3/2/6/132682787/450646.pdfIn PDF document text
    • https://liloxowilobo.weebly.com/uploads/1/3/4/2/134265539/84b14de.pdfIn PDF document text
    • https://lotuwuwobegeze.weebly.com/uploads/1/3/4/4/134476082/2320415.pdfIn PDF document text
    • https://lowunidedalovel.weebly.com/uploads/1/3/1/3/131380213/ee4c7e333.pdfIn PDF document text
    • https://xebexusutawa.weebly.com/uploads/1/3/4/5/134502291/ca85b7e791f.pdfIn PDF document text
    • https://motuzepiruwilo.weebly.com/uploads/1/3/4/3/134348631/7e3828a1b7a2.pdfIn PDF document text
    • https://fukusegoboviv.weebly.com/uploads/1/3/1/8/131856281/pezijetig.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/42b613c7-a072-450d-bfbf-7055198ad4cd/blue_bossa_real_book_bb.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/940c5567-c457-41ee-a7b5-34959b5d6738/adversaries_in_the_bible.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7c422a8-2698-4f83-bb6e-6a4ad9778b36/bow_rogue_leveling_guide_ragnarok_mobile.pdfIn PDF document text
    • https://s3.amazonaws.com/feliso/ararara_dj_marathi_song.pdfIn PDF document text
    • https://s3.amazonaws.com/fodose/betting_apps_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/penale/central_route_of_persuasion_example.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b440cd12-16f1-42a8-a018-98ee67448444/90962319502.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/adx_trax_pro_free.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD17 5496 bytes
SHA-256: ab5d20ccce894edf4b786ab02fc88a469b169db5194bfd6635133c32e1b65ca4
font_01_sfnt_off0000efc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFC9 14816 bytes
SHA-256: 497c7cc42d55dd61005b962500c1067e6eecd8854dee2dbacbcff8bfac0ffc9a