Malicious PDF — malware analysis report

Static analysis result for SHA-256 09076c18d6e13651…

MALICIOUS

PDF

76.2 KB Created: 2021-03-06 10:28:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: ac721029dd9c0f9f6607b8476313ea5d SHA-1: da8d5a0e806a684d14598c9335760bba04551ecd SHA-256: 09076c18d6e13651ab67e3b8a54e27144ca4e8ad24b5e6c9b484a64cdaed1cbd
246 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://zekawumili.weebly.com/uploads/1/3/4/4/134403966/ropon.pdf.
  • 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://druttle.ru/wix?keyword=faculty+v2.0.0+apk PDF link annotation
    • https://zekawumili.weebly.com/uploads/1/3/4/4/134403966/ropon.pdfIn PDF document text
    • http://xonesasa.iblogger.org/how_to_run_your_first_marathon.pdfIn PDF document text
    • https://xalitizamer.weebly.com/uploads/1/3/4/8/134863297/3639922.pdfIn PDF document text
    • http://naturebiolog.fun/dazijopobadumawegekorizefjzf9e.pdfIn PDF document text
    • http://nuzidixiwetor.22web.org/new_music_bongo_flava_2018.pdfIn PDF document text
    • https://kotutoxegaru.weebly.com/uploads/1/3/2/6/132695780/wujogikufu-livotopesu-zetojedurineles-mivosum.pdfIn PDF document text
    • https://nasabera.weebly.com/uploads/1/3/4/4/134447265/xamapumaw-sefolun.pdfIn PDF document text
    • http://qwertyujg.xyz/tinkle_september_2020rhmrs.pdfIn PDF document text
    • http://midorezif.iblogger.org/bloc_de_notas_apk_full_gratis.pdfIn PDF document text
    • https://xitapazutirubej.weebly.com/uploads/1/3/4/8/134882608/fizusezezaw-xudosizu-lezupeda-tefedevesil.pdfIn PDF document text
    • https://balolenitazir.weebly.com/uploads/1/3/1/0/131071159/9698264.pdfIn PDF document text
    • https://vefapabawi.weebly.com/uploads/1/3/0/7/130740427/navutojedepomir.pdfIn PDF document text
    • http://remont-pc.website/air_force_storekeeper_question_paper5rc6q.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://05790d5e-93e9-4545-bcc4-99c37f081c18.filesusr.com/ugd/bff4d5_fb6f5c47422d4cf68d6fc180cc86ddc0.pdf?index=trueIn PDF document text
    • http://sikofus.epizy.com/garmin_vivomove_hr_guide.pdfIn PDF document text
    • https://c83cbd6e-a134-4b49-ba12-49f24c654ad9.filesusr.com/ugd/904a8b_75503cac75e84ab8a5569d478fcf5001.pdf?index=trueIn PDF document text
    • https://d8acad56-eb9a-42d1-a06c-a695c5b02328.filesusr.com/ugd/0ad6c7_e261bd669ca44c1bbccf87ca452818d3.pdf?index=trueIn PDF document text
    • http://kuviwobabevi.epizy.com/diablo_2_druid_summoner_guide_1._13.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_off0000ee7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE7C 5140 bytes
SHA-256: 9e54cf99ae8ac90892f111c2f5522d9e69a3b7a1ec7fd8b441a50633b3b3fe2d
font_01_sfnt_off0001002a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1002A 10472 bytes
SHA-256: 709b03052699fd91caa49955dca8cee3f115a3d824b01631e21a37984d84f968