Malicious PDF — malware analysis report

Static analysis result for SHA-256 fffe9e07a68908cb…

MALICIOUS

PDF

71.6 KB Created: 2021-03-05 07:51:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4e89798523d6c1ce2d40a7e2a513cca9 SHA-1: 3c18a0445b744a302a16991894603934fd7315ac SHA-256: fffe9e07a68908cba807909b9892786113faf40738e56684a68683c0d0368cbb
186 Risk Score

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://seumenha.ru/award?keyword=dr.+seuss+sleep+book+pdf+free+download PDF link annotation
    • https://wuvozova.weebly.com/uploads/1/3/4/5/134500004/590e6452b96ff52.pdfIn PDF document text
    • http://zekinaperobivak.22web.org/lixezele.pdfIn PDF document text
    • https://fabezetenonuke.weebly.com/uploads/1/3/4/8/134846610/9615087.pdfIn PDF document text
    • https://cdn.sqhk.co/wexunaveb/achhmUc/mclaren_formula_1_livery.pdfIn PDF document text
    • https://cdn.sqhk.co/nukusigemug/NFiegi2/20533018224.pdfIn PDF document text
    • https://fanamixaxa.weebly.com/uploads/1/3/4/0/134017579/lejugevirez.pdfIn PDF document text
    • http://betijeduw.getenjoyment.net/is_gimp_safe_to_download_reddit.pdfIn PDF document text
    • https://cdn.sqhk.co/nupegefozub/jetQmqs/goal_zero_flip_36_portable_charger_review.pdfIn PDF document text
    • https://cdn.sqhk.co/roratumopiv/hahi3je/taborejaloleb.pdfIn PDF document text
    • https://cdn.sqhk.co/mapetidul/ifhdaCu/fnaf_corrupted_animatronics_song.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://buzanuziti.myartsonline.com/13250700803.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9146a30-38e3-42a8-8fcc-b332fe8152d2/nijunexugerumo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af491ff8-6f96-498c-87f7-e3a6dca448de/32698087703.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bbe16e9-2e7f-4bc3-97a3-58daf9e35e6a/how_to_reset_spectrum_210_cable_box.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/049819be-8980-4c05-8a56-1fb349ddf3b7/how_to_fix_mouse_problems.pdfIn PDF document text
    • http://ligunatiresid.epizy.com/jingle_bells_sheet_music_for_beginners.pdfIn PDF document text
    • http://fazobelo.onlinewebshop.net/nikukoxubo.pdfIn PDF document text
    • https://s3.amazonaws.com/jaloto/sezijovenijazefaga.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/bali_blinds_measuring_guide.pdfIn PDF document text
    • http://nitubak.atwebpages.com/2746285609.pdfIn PDF document text
    • http://zizenatoxu.myartsonline.com/the_wu_tang_manual.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_off0000da64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA64 5360 bytes
SHA-256: 6683b13ef4f233b1ff672252acbea83f0bd936517bf7beaa4b4e4879e0bd594d
font_01_sfnt_off0000ecc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECC3 10504 bytes
SHA-256: 3fd2d191fa651659cc434878c85c9c47f8f224e5c4541c39a65a8ff8b4dead6b