Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ae35b5160ff534c…

MALICIOUS

PDF

71.8 KB Created: 2021-02-25 02:06:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 11c7200600931d410e5dda2eb624fe89 SHA-1: 2cd74605c7a48993239d145260a5dd8b3f11bac9 SHA-256: 0ae35b5160ff534c8e3b4e29977a815f420204b43ac518fb49ce8d529751ab0a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://bologen.ru/wix?keyword=download+internet+download+manager+portable+full+version PDF link annotation
    • http://niwanusunig.22web.org/devulanavedeg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392218/normal_5fe15e78d88c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447464/normal_6028ba79666d6.pdfIn PDF document text
    • http://wisajekunitope.22web.org/hamilton_beach_14_cup_coffee_maker_manual.pdfIn PDF document text
    • http://mivukiwoluwuj.iblogger.org/mozart_lacrimosa_requiem_piano_sheet_music.pdfIn PDF document text
    • http://xuxoromozura.iblogger.org/95210294532.pdfIn PDF document text
    • http://xufelofimu.22web.org/tilesets_rpg_maker_vx_ace_terror.pdfIn PDF document text
    • http://berizala.22web.org/paropuz.pdfIn PDF document text
    • https://cdn.sqhk.co/pajerelo/Xkongdq/pusodozinaz.pdfIn PDF document text
    • https://cdn.sqhk.co/linewebozid/s42ngf1/christmas_cross_stitch_patterns_for_beginners.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475864/normal_5ff820e5e2921.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386842/normal_5fdab4151044c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424024/normal_6026932447294.pdfIn PDF document text
    • http://bosegabowatitup.iblogger.org/life_science_grade_12_genetics_notes.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bevunogigofijag.rf.gd/how_much_do_part_time_graphic_designers_make.pdfIn PDF document text
    • http://dijinisefiregot.rf.gd/vipajutiwu.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_off0000dc93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC93 5652 bytes
SHA-256: 3ae54c8eeac380324178f1ab26b6996ac0cc821744e7a6ba8cb4159c814a4aaa
font_01_sfnt_off0000efd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFD1 10044 bytes
SHA-256: fc0e92362b97c6612b0e1e1189bf738443a9e703148558853316f4e16c4792de