Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2a306f7362e1a92…

MALICIOUS

PDF

86.9 KB Created: 2021-05-11 12:54:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9a32d9d95ab3f8c16ef9cdff5a73735c SHA-1: 5776f965f1254845c711ca61f3915838781ff2ca SHA-256: d2a306f7362e1a9276858234565a13b8971944aa31fc205ec95d626bd98120ee
126 Risk Score
Tags
free-cdn-ebook-manual-lure

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-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://lozipotod.ru/strik?utm_term=casio+g-shock+ga-110gb-1a+%25D0%25BA%25D1%2583%25D0%25BF%25D0%25B8%25D1%2582%25D1%258C PDF link annotation
    • https://jevezorubik.weebly.com/uploads/1/3/4/8/134864628/kojurinivomomoge.pdfIn PDF document text
    • http://namelesssouth.xyz/space_bowling_billiards_oulu71ova.pdfIn PDF document text
    • http://laserisesiseno.getenjoyment.net/86858067791.pdfIn PDF document text
    • https://lolivifi.weebly.com/uploads/1/3/0/7/130739590/dumap-buvewikez.pdfIn PDF document text
    • http://xsale.trade/aw_tozer_sermons_online5fxxb.pdfIn PDF document text
    • http://bulakirip.getenjoyment.net/how_to_make_bunk_beds_look_nice.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495043/normal_5fd217ac252ef.pdfIn PDF document text
    • http://reabook.online/vumajawofudepiwiwikvhvg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473619/normal_6059bee9426ae.pdfIn PDF document text
    • http://cyberlife.store/carlcare_uganda_jobsqpl7k.pdfIn PDF document text
    • http://hotita.space/zoriposuxugidexlntsz.pdfIn PDF document text
    • https://xijaxerunoseme.weebly.com/uploads/1/3/4/3/134306079/subidava.pdfIn PDF document text
    • https://rovetizewi.weebly.com/uploads/1/3/0/7/130776299/5f13ae257.pdfIn PDF document text
    • http://forkidsshop.online/why_are_all_the_lights_flashing_on_my_midland_weather_radiotk5ii.pdfIn PDF document text
    • http://fovikoxesaweziz.medianewsonline.com/telen.pdfIn PDF document text
    • https://lidutefavova.weebly.com/uploads/1/3/4/0/134012516/ca731d0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490539/normal_5fce2ef391e57.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4407733/normal_5fe55d9d2fdd1.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://zisukuvi.atwebpages.com/business_environment.pdfIn PDF document text
    • http://muvamubas.atwebpages.com/bank_alfalah_branch_code_list.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_off0000ee46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE46 5324 bytes
SHA-256: 9678aa8b97970df349cbb0310700490ef456d5210b3fac397abad9fcd8593041
font_01_sfnt_off00010088.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10088 26544 bytes
SHA-256: 54c5b066a52799e1bdf7785e4c1ee258b71290920a43acf9a3a7aa75120ff693
font_02_sfnt_off00013e13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13E13 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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