Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1e0e7d160841915…

MALICIOUS

PDF

77.3 KB Created: 2021-03-06 16:16:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 6fc0657c52b717ff47ccdcd74c08222c SHA-1: ad55f1d17f690c56291205dab7ddb2a7aac36735 SHA-256: e1e0e7d16084191567522725ba217daed3bf46a84aa8ca5dc110a0aa250c30d5
126 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains numerous embedded URLs, with one prominent URL pointing to 'soxebez.ru' and disguised as a search result for a car. This suggests a phishing or malware distribution attempt, likely leveraging social engineering to trick users into clicking the link. No scripts were extracted, but the PDF structure and embedded links are indicative of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://soxebez.ru/aws?utm_term=2012+toyota+highlander+hybrid+for+sale PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4447089/normal_60148f3d01cfa.pdfIn PDF document text
    • https://povurumupun.weebly.com/uploads/1/3/4/8/134884194/2632012.pdfIn PDF document text
    • http://alcozerox.com/first_aid_beauty_ultra_repair_cream_2_ozlxvwx.pdfIn PDF document text
    • https://cdn.sqhk.co/betewulo/migjaA5/pet_shop_story_bullfrog_breed.pdfIn PDF document text
    • http://216tilford.com/gatemevuwdd2me.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470979/normal_6004d6f77fb24.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496592/normal_5fca5d459be30.pdfIn PDF document text
    • https://cdn.sqhk.co/javejako/dhhAghK/browser_video_downloader_free_online.pdfIn PDF document text
    • http://rivalo130.com/best_law_dictionary_app_philippines2pmc2.pdfIn PDF document text
    • http://libuwapuvewipev.mywebcommunity.org/sosizuniwukem.pdfIn PDF document text
    • http://mxbur.fun/99094602070g2b23.pdfIn PDF document text
    • http://help-feedback-amzn3.xyz/46432295357kyw5y.pdfIn PDF document text
    • http://detonic-italia.website/ninowodilelozigelepode7exyw.pdfIn PDF document text
    • http://letnesil.xyz/73251510408fbnbu.pdfIn PDF document text
    • http://hisgohar.site/ambarsariya_full_movie_filmywap7sz34.pdfIn PDF document text
    • http://bonusiotsbera.online/abbottabad_university_date_sheet_2018_ba6verg.pdfIn PDF document text
    • https://dusitibepilezu.weebly.com/uploads/1/3/1/4/131437978/8570628.pdfIn PDF document text
    • http://ig-objectionform.com/smoke_hollow_electric_smoker_manual6fouz.pdfIn PDF document text
    • http://wotaxatumumodok.sportsontheweb.net/zoniwajuzavolarirewewixu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nosigegu.onlinewebshop.net/kedawusid.pdfIn PDF document text
    • http://bememikat.onlinewebshop.net/in_his_book_civilization_and_its_discontents_freud_argued_that.pdfIn PDF document text
    • http://teluroluxeterez.myartsonline.com/how_to_connect_xp_series_gaming_chair_to_ps4.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_off0000f005.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF005 5644 bytes
SHA-256: e14426080682943d44101e42a9c0a7ebc4253c2b2e182cec609790105edb9d7d
font_01_sfnt_off0001033f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1033F 10748 bytes
SHA-256: e76fe56adf869c69403775ac753ccaec0f5f15875a0192ccd2400b6f3a97899c

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