Malicious PDF — malware analysis report

Static analysis result for SHA-256 3324b22b0ccca7c1…

MALICIOUS

PDF

72.4 KB Created: 2021-03-02 08:14:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5f8b3338774d24622cc1e7dd5f56e8e1 SHA-1: e0af8b1637f3ce0248455ac638a2ddec87499952 SHA-256: 3324b22b0ccca7c15eed40c4e60a79c7d7f4c98801ea1b32241994f73529f648
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=cindy+trimm+healing+prayer+pdf+download In PDF document text
    • https://cdn-cms.f-static.net/uploads/4454824/normal_601c6a5697370.pdfIn PDF document text
    • http://serururepus.scienceontheweb.net/graphing_systems_of_inequalities_worksheet_algebra_2.pdfIn PDF document text
    • https://jekugisolidib.weebly.com/uploads/1/3/4/0/134097103/pexit.pdfIn PDF document text
    • http://gakagebir.mypressonline.com/casio_fx_9860gii_vs_9750gii.pdfIn PDF document text
    • https://cdn.sqhk.co/ketixudolu/CiikYAS/alien_shooter_game_download_for_windows_xp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375698/normal_5fd2c17dcdb55.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369930/normal_5ff12f628b944.pdfIn PDF document text
    • http://labifovejes.mypressonline.com/citizen_navihawk_eco_drive_not_working.pdfIn PDF document text
    • http://zoguponuwuxoli.medianewsonline.com/vivovejobilew.pdfIn PDF document text
    • https://dewifekezag.weebly.com/uploads/1/3/5/3/135313931/9164152.pdfIn PDF document text
    • https://revugegan.weebly.com/uploads/1/3/4/6/134682990/zebobifoneveji.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://s3.amazonaws.com/jotogorurekuro/lijesip.pdfIn PDF document text
    • https://s3.amazonaws.com/tibanepoxilibud/childish_gambino_free_awaken_my_love.pdfIn PDF document text
    • https://s3.amazonaws.com/pekatikisuruki/nuwirixejomamiwadojiku.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_off0000d1cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1CC 5280 bytes
SHA-256: ece78eb4b9f3dcd765729889ab6560ca8beabff80acc118d762ee5325dbafe6e
font_01_sfnt_off0000e3b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3B1 10212 bytes
SHA-256: 89148aa7aa388203759d2c8a55ef1b5ae580034d9a1f230e601deb8ca6cd8e3a
font_02_sfnt_off000106b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106B9 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e