Malicious PDF — malware analysis report

Static analysis result for SHA-256 0afe6b3194ae511a…

MALICIOUS

PDF

87.8 KB Created: 2021-03-23 12:29:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 0d10703a7f00949dd5ada37af59dcbc2 SHA-1: 9360b5901668a29fe4cb0ebecab6bb0f615dce20 SHA-256: 0afe6b3194ae511a66cb345e992a78e7818855c3b1587dbb603c774c36a0a4d4
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://crophysi.ru/strik?utm_term=sccm+configuration+manager+log+location PDF link annotation
    • http://fogafiv.mypressonline.com/how_to_use_a_lean_mean_fat_grilling_machine.pdfIn PDF document text
    • https://senevabitup.weebly.com/uploads/1/3/4/2/134234896/94d3aa856237c2.pdfIn PDF document text
    • https://cdn.sqhk.co/wuxaguzifep/6P9jbzD/photo_lab_editor_download_for_pc.pdfIn PDF document text
    • http://grigolia-studio.ru/335232007319whwx.pdfIn PDF document text
    • https://jawenovexexadu.weebly.com/uploads/1/3/4/0/134012785/nikutekagovasule.pdfIn PDF document text
    • http://mozobadijoba.medianewsonline.com/calendario_2020_bolivia.pdfIn PDF document text
    • http://xadakid.22web.org/how_to_play_guitar_for_beginners_step_by_step.pdfIn PDF document text
    • https://zowotojezef.weebly.com/uploads/1/3/4/3/134330732/bd1289bd48a6997.pdfIn PDF document text
    • https://cdn.sqhk.co/muluxodipoto/xijGghh/mowumuj.pdfIn PDF document text
    • https://cdn.sqhk.co/rotefuver/jdFCibP/gun_rider_game_download_3d.pdfIn PDF document text
    • http://ig-support-service.com/javascript_callback_android_webviewgmidk.pdfIn PDF document text
    • https://bivixogerixud.weebly.com/uploads/1/3/4/4/134469213/15a205e.pdfIn PDF document text
    • https://cdn.sqhk.co/dibitarebizu/fMhghjd/sigapujuwopirimekumi.pdfIn PDF document text
    • https://fatatarulawug.weebly.com/uploads/1/3/4/4/134474158/zeruf.pdfIn PDF document text
    • https://lekopejener.weebly.com/uploads/1/3/5/3/135323345/niromifeb_tizibowuritu.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
    • http://kutoduno.rf.gd/how_to_attach_dremel_attachments.pdfIn PDF document text
    • http://ligozefiwesav.epizy.com/poulan_pro_leaf_blower_carburetor_diagram.pdfIn PDF document text
    • http://bavidatesudujig.epizy.com/android_studio_profiler_energy.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010c6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C6A 5008 bytes
SHA-256: 5e31720cf5c3bf8b9855669cb10012c22f26a5d1bd882346e563b80e42a697ff
font_01_sfnt_off00011d52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D52 10708 bytes
SHA-256: 5bdea0a8dcd35307fc4811c2c6d6d3462ef86142385b0ac4a24c2d039602f0a0
font_02_sfnt_off000141c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x141C3 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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