Malicious PDF — malware analysis report

Static analysis result for SHA-256 5992d4d51427f603…

MALICIOUS

PDF

64.1 KB Created: 2021-01-30 08:54:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: fe274442253de47fdc3a7ade332ea552 SHA-1: 1a6d0f11fb8dd5ee8fc5c5bd3f4a0ee90711c3ff SHA-256: 5992d4d51427f603119b86f5dba16741ea6f403fbfe7416692343af2513b9a2e
126 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
  • 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://leonvi.ru/wb?keyword=forest%20hdmi%20cable%201m PDF link annotation
    • https://lanapovo.weebly.com/uploads/1/3/1/4/131437145/9d045b.pdfIn PDF document text
    • https://letotanuvimipe.weebly.com/uploads/1/3/4/5/134598603/3673081.pdfIn PDF document text
    • https://zuxomizo.weebly.com/uploads/1/3/2/7/132710603/didapiravu.pdfIn PDF document text
    • https://fejoburu.weebly.com/uploads/1/3/0/8/130813906/kurip_gijodesupe_defugozigupubes.pdfIn PDF document text
    • https://cdn.sqhk.co/tavolimogid/gi6W0ii/43763759015.pdfIn PDF document text
    • http://healthyforczechrepublic.site/gofelotoguxolarifimux24txq.pdfIn PDF document text
    • http://pl50off.info/mavojifuvewuzuburaketisikdwhw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491450/normal_5fe1f5657186e.pdfIn PDF document text
    • https://rorupuloloxotog.weebly.com/uploads/1/3/1/4/131409755/zifoduvofo.pdfIn PDF document text
    • https://cdn.sqhk.co/tejurorado/jijjiWg/arcade_games_online_play_now.pdfIn PDF document text
    • https://cdn.sqhk.co/lipetebo/0hhKBhg/banulewetonorikokakivegox.pdfIn PDF document text
    • http://tesar-krd.ru/2412349013rlxcv.pdfIn PDF document text
    • https://vokevifiv.weebly.com/uploads/1/3/4/6/134657891/1786dd05945a9.pdfIn PDF document text
    • http://chemistryplus.space/33512870078tm8n6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xafafomuripag.epizy.com/parakeet_bird_sounds.pdfIn PDF document text
    • https://www.richersounds.com/audioquest-forest-1m-hdmi.htmlIn 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_off0000bc6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC6F 5328 bytes
SHA-256: 070a3be836610ea8a3655149f852eb2bc7eb030399a332d49e563de50b6e11d1
font_01_sfnt_off0000ce61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE61 11008 bytes
SHA-256: a5c7f0d8e8896e8aa5c7efb6f0f3da82e2d4f006aec9dd8a10b3f7cc1d1159ba