Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a5b02eb5da3ca79…

MALICIOUS

PDF

83.9 KB Created: 2021-05-25 03:15:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 6744d27b4a5c59602ccd1165b9d22435 SHA-1: 107e0fe05cc06f0aa36bac80626678ab4a6e2e41 SHA-256: 0a5b02eb5da3ca79dd17cd5b441414d587ff647ca38832664ee4004814557216
186 Risk Score

Malware Insights

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

This PDF file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to malicious content. The primary URL, 'https://xajibur.ru/strik?utm_term=wwe+supercard+hack+generator+no+human+verification', explicitly promises a hack generator, a common lure for phishing or malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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.
  • 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://xajibur.ru/strik?utm_term=wwe+supercard+hack+generator+no+human+verification PDF link annotation
    • https://zetapowopes.weebly.com/uploads/1/3/0/8/130813904/burimolo.pdfIn PDF document text
    • https://newowuwaw.weebly.com/uploads/1/3/4/6/134634034/2364411.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453144/normal_5fe15902999fe.pdfIn PDF document text
    • https://nulesurusisozi.weebly.com/uploads/1/3/4/7/134744420/vagolet.pdfIn PDF document text
    • https://jarowuvuvam.weebly.com/uploads/1/3/4/6/134614172/vovowi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387567/normal_605efe74dbbe6.pdfIn PDF document text
    • https://xowivana.weebly.com/uploads/1/3/0/8/130813667/nidulojususub_vasezidixujep.pdfIn PDF document text
    • https://debamivuk.weebly.com/uploads/1/3/1/8/131871977/0b7c142db170b.pdfIn PDF document text
    • https://lowizozexide.weebly.com/uploads/1/3/0/7/130776176/3715451.pdfIn PDF document text
    • https://rinotawobuv.weebly.com/uploads/1/3/4/7/134768279/0b7a9.pdfIn PDF document text
    • https://nabesoke.weebly.com/uploads/1/3/4/0/134042749/vutolizawupitufe.pdfIn PDF document text
    • https://dudefusuze.weebly.com/uploads/1/3/4/6/134628774/7c914029406592.pdfIn PDF document text
    • https://topudikuwem.weebly.com/uploads/1/3/4/0/134042537/4414007.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412767/normal_603b60cde5930.pdfIn PDF document text
    • https://faporipito.weebly.com/uploads/1/3/4/6/134600592/1924317.pdfIn PDF document text
    • https://reguzuseja.weebly.com/uploads/1/3/2/6/132695615/vumozebug.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405642/normal_6068eb1d2792b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487413/normal_605c69d321e33.pdfIn PDF document text
    • https://zetojaxonafavop.weebly.com/uploads/1/3/5/3/135309172/e03daffffc.pdfIn PDF document text
    • https://liskgame.com/wwe-supercard-hack-without-human-verification-%f0%9f%8e%ae-insaneIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6B2 5648 bytes
SHA-256: 198377257d8d77d7ec8558d2d2f0b5efeb2125e66bdf6eb24df159a44a7e6efa
font_01_sfnt_off0000f9da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9DA 10836 bytes
SHA-256: 6d361301d27da545780af6d10c85329bcc4749e69f072459691a3759b0da64a9
font_02_sfnt_off00011ee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EE8 16064 bytes
SHA-256: 723e6034cfa8adeebabcb44fcd9a81d05c7492831ad3e7dd1a7a87e114838b67
font_03_sfnt_off00013389.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13389 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c