Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed1ef46f5fb137f7…

MALICIOUS

PDF

76.1 KB Created: 2021-01-25 13:21:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 10ca04b8882ca256204890c183cc46db SHA-1: 71bb3c4ced20e233f1a9fedee76c1af7dbbbb185 SHA-256: ed1ef46f5fb137f7f75229b4e93acade7b5936c261641d24453a06fa8456da22
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with one prominent URL pointing to a site that appears to be a lure for 'white pages new mexico santa fe'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware delivery. The presence of multiple disposable domains and link farms suggests a campaign designed to obscure the ultimate malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 5

  • 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.
  • 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://trafficel.ru/123?utm_term=white+pages+new+mexico+santa+fe PDF link annotation
    • http://mmuuue.space/crazy_climber_2frbo5.pdfIn PDF document text
    • http://torchqbfl.fun/xuduronodemjbqs.pdfIn PDF document text
    • https://luxanuritaz.weebly.com/uploads/1/3/5/3/135346697/af5041c2c41e.pdfIn PDF document text
    • http://prizinsta365.website/53349212788p6bz8.pdfIn PDF document text
    • http://forexgeeks.net/ted_bundy_movie1qg33.pdfIn PDF document text
    • http://daating19.site/hd_wallpapers_for_iphone_6_1080p_animegsxfv.pdfIn PDF document text
    • https://kirorasonosa.weebly.com/uploads/1/3/4/7/134743937/35a31293c3.pdfIn PDF document text
    • http://sdfsdfsdf.shaketorch.com/gofiwuma.pdfIn PDF document text
    • https://wikivosunox.weebly.com/uploads/1/3/2/7/132741322/96fe16a4be1.pdfIn PDF document text
    • http://xuponigivixi.66ghz.com/togutopijusikosit.pdfIn PDF document text
    • http://italysummer.space/draw_a_stickman_epic_2_pc_free_downloadrmr8c.pdfIn PDF document text
    • http://degitowexara.iblogger.org/gajatu.pdfIn PDF document text
    • http://soldonlakewood.com/sixojewapafiycw4.pdfIn PDF document text
    • https://febasenijig.weebly.com/uploads/1/3/1/3/131379808/12958a0c0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gizimup.epizy.com/44980351937.pdfIn PDF document text
    • http://jemibare.epizy.com/namo_android_application.pdfIn PDF document text
    • https://s3.amazonaws.com/kesumasaka/yogyakarta_travel_guide.pdfIn PDF document text
    • http://xujalupa.epizy.com/cn_games_mod_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/resonance_jee_adv_2018_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/xirixepo/wuwibituw.pdfIn PDF document text
    • http://zalaxorenisev.epizy.com/inter_marksheet_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxutedi/fivaxakatokoji.pdfIn PDF document text
    • http://zurinelu.epizy.com/jelly_belly_50_flavor_guide.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_off0000eae7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAE7 5476 bytes
SHA-256: 5df0e991a2a5559906363524a9017da2b120d13288b4a6ac20162abe71f31fdf
font_01_sfnt_off0000fd8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD8C 11068 bytes
SHA-256: b632322a0aafaa938bc7808189e4cb2042e13a038caec7b158ce049a9febdeb6

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