Malicious PDF — malware analysis report

Static analysis result for SHA-256 375c2172c8eb5dc5…

MALICIOUS

PDF

84.9 KB Created: 2021-03-18 02:06:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 7a9ff59c0afa4efcd7310a682b0cf616 SHA-1: 1cffd57fda15b67ad9f8d61cddaf3bb39f16a109 SHA-256: 375c2172c8eb5dc50a5e4a8213829fdc4bb0ddb7abe97a1c13ae44d183460da4
194 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many pointing to disposable hosting, and one primary malicious URL (xezojetit.ru) associated with a 'playboy magazine cover template free' search term. Heuristics indicate a link farm and a phishing/trojan detection by ML classifier and ClamAV. The document body, though heavily obfuscated, suggests a lure related to templates, aligning with phishing or malware distribution tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 7

  • 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.
  • 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://xezojetit.ru/strik?utm_term=playboy+magazine+cover+template+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369491/normal_5fda52c569f5f.pdfIn PDF document text
    • https://batigagonu.weebly.com/uploads/1/3/4/7/134774980/4972920.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383577/normal_6033a5f1e727a.pdfIn PDF document text
    • http://kutegexuwudaro.getenjoyment.net/tatiredenowina.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381762/normal_5ffc58ebd9a04.pdfIn PDF document text
    • http://quickstore.pro/hallelujah_piano_sheet_beginner7222l.pdfIn PDF document text
    • http://fdvsefwfrw.space/shadow_fight_2_ios_hack_no_jailbreak_downloadntbl3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457592/normal_603d9752c4e61.pdfIn PDF document text
    • https://dizakevusarebiz.weebly.com/uploads/1/3/4/5/134581037/gajamugiwidisop.pdfIn PDF document text
    • http://instofficial.online/borderlight_apk_mirror2lo3b.pdfIn PDF document text
    • https://goxejebifebiv.weebly.com/uploads/1/3/2/6/132682819/f3b45d66cd0.pdfIn 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
    • https://uploads.strikinglycdn.com/files/e6523fdd-2647-4891-a147-1d859aad357a/rotekaxesafomurelowi.pdfIn PDF document text
    • https://e8f98835-b194-42a5-b43f-fe2f29920dd6.filesusr.com/ugd/bf650e_17da323a3a4a466a883bc2ed8167ee82.pdf?index=trueIn PDF document text
    • https://91313464-3f42-441e-b0e8-b27065d471ad.filesusr.com/ugd/ee9d3f_f736b471708041b5b883491d606fa204.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/93f92f5a-1afe-4b80-89c6-db1766820b80/what_is_computer_network_in_english.pdfIn PDF document text
    • https://ad323f3e-245e-4e3c-8b16-de91fefec063.filesusr.com/ugd/5ea691_0ed0ae9efc594af08bc40e65d0b7c97d.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/09a0362f-50af-42ea-8dd4-7263fcf7518e/enter_an_agreement_or_enter_into_an_agreement.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f41eebe-19ba-4ea4-a06e-ccdfe783199f/7_types_of_figurative_language_examples.pdfIn PDF document text
    • http://zorijefugixor.atwebpages.com/tofetarabilu.pdfIn PDF document text
    • https://8eeb1f0a-0cdd-4c66-98a4-83777b49fb54.filesusr.com/ugd/64f9d2_bf25c839aae54e999fe105c422272bdb.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/f963b36c-2c9b-4ec3-9d1b-4953a61de9ed/modern_political_thought_readings_from_machiavelli_to_nietzsche_second_edition.pdfIn PDF document text
    • http://jelunegizubu.atwebpages.com/rancilio_silvia_model_e.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ffcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFCB 5300 bytes
SHA-256: 5875af166af8b18c723a668e31911a3b816016dfe5c5a725ea9101356385a830
font_01_sfnt_off000111c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x111C8 11064 bytes
SHA-256: d8cf2ba9b73c8f22ff64102a0494c0556adbc05b09f5917f2727338b6b2198b3
font_02_sfnt_off000137a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137A8 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c