Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d206e812067cb37…

MALICIOUS

PDF

90.7 KB Created: 2021-04-24 19:17:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 61a8758258b3551122c616f96d0a2917 SHA-1: 2af1645704f9b33c2ebabbfe548530cc4ef7db23 SHA-256: 2d206e812067cb37294eb04b1047991d9c6a2d9ab0b4976c216df9f4dd23a826
134 Risk Score

Malware Insights

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

The PDF contains multiple external URIs and is flagged by ML classifiers and ClamAV as malicious phishing content. The document body, though heavily obfuscated, appears to be a lure related to a 'Logitech z623 installation guide'. The presence of numerous links to disposable domains and potentially malicious URLs suggests an attempt to redirect users to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://maypoin.ru/strik?utm_term=logitech+z623+installation+guide PDF link annotation
    • http://leninuludobodu.mygamesonline.org/xiripozawatirijororeb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381104/normal_606b97bb2e774.pdfIn PDF document text
    • https://cdn.sqhk.co/nobixapo/icghien/jeni_mobile_wash.pdfIn PDF document text
    • http://grantmedica.ru/xijazavaowpap.pdfIn PDF document text
    • http://testertumentum.space/blue_devils_2017_snare_break_sheet_musicy6x7o.pdfIn PDF document text
    • http://fipagolanikobax.mygamesonline.org/what_are_some_sight_words_for_kindergarten.pdfIn PDF document text
    • http://wosedumuf.mywebcommunity.org/minuruxetosinewu.pdfIn PDF document text
    • https://cdn.sqhk.co/sogunixe/Osjggjz/mabowigarukofaduse.pdfIn PDF document text
    • http://trudogoliya.online/jububuvoxokugamabuzupifakrhyb.pdfIn PDF document text
    • http://cetakchantek.com/fokavavol89jys.pdfIn PDF document text
    • http://obuv-kozha.ru/28679716666d2jyp.pdfIn PDF document text
    • http://podonebatimekel.22web.org/report_lost_card_american_express_singapore.pdfIn PDF document text
    • http://siwupojotuj.getenjoyment.net/51758753330.pdfIn PDF document text
    • http://clubstore.pro/ankhon_dekhi_full_movie_in_720pcnzfq.pdfIn PDF document text
    • https://cdn.sqhk.co/pelotuwew/3md7Z7J/verotofi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406169/normal_60584584531cb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sumawimibodi.rf.gd/gate_books_for_computer_science_engineering_and_information_technology.pdfIn PDF document text
    • http://xajumin.epizy.com/crp_test_ki_full_form.pdfIn PDF document text
    • http://tiwadelir.rf.gd/central_air_conditioner_troubleshooting_guide.pdfIn PDF document text
    • http://jisufosesuku.epizy.com/bolt_head_size_chart_metric.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_off00012410.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12410 5544 bytes
SHA-256: f1e79ae4eb003ea073e2b094cbb7693425cc193ac06141ab47c52c63e3e8373a
font_01_sfnt_off000136f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136F3 11256 bytes
SHA-256: 01f51860a12e497187beaf6d50b4d517aabb93bad760df3f01b1bea6d96cb6d8

Open this report in the interactive analyzer, or submit your own file for analysis.