Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e4af61cbe1c9291…

MALICIOUS

PDF

72.1 KB Created: 2021-05-09 08:08:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 473784e6da27168b5b83d0e636fe2fd4 SHA-1: 5cd23ceec3af780375e0f8f21b077e360d6729ea SHA-256: 1e4af61cbe1c92910f5c3fc28ae8b9a7f85fe7a35e0ed8ee5843cc27c0098637
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 0.9993

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://maypoin.ru/strik?utm_term=how+do+i+program+my+one+for+all+remote+to+my+tv PDF link annotation
    • https://cdn.sqhk.co/gukitane/hMcbQgd/15071247830.pdfIn PDF document text
    • http://gejurabek.getenjoyment.net/best_christmas_movie_quiz_questions.pdfIn PDF document text
    • https://cdn.sqhk.co/kapideto/0ibHjjz/27960174735.pdfIn PDF document text
    • https://cdn.sqhk.co/vusutazomaga/dNijhbi/raiden_legacy_pc_cheats.pdfIn PDF document text
    • http://pojokup.getenjoyment.net/core_java_interview_questions_tutorialspoint.pdfIn PDF document text
    • http://italiahot.fun/think_and_grow_rich_summary_chapter_2kktwi.pdfIn PDF document text
    • http://soinjaga.ru/libro_una_mujer_que_ora_por_su_esposohzoer.pdfIn PDF document text
    • http://ridunculus.com/why_dell_laptop_charging_light_blinkingh8jxe.pdfIn PDF document text
    • http://difanitukovu.mywebcommunity.org/mapa_turistico_biarritz.pdfIn PDF document text
    • http://martakkord.ru/boliyan_song_jass_sanghamw8y2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jamuluvuvava/vita_spa_hot_tub_reviews.pdfIn PDF document text
    • https://s3.amazonaws.com/julexekubaj/64737812831.pdfIn PDF document text
    • https://dc688580-c0ec-4ade-910b-7abffd870ab4.filesusr.com/ugd/096b61_e1e72ef5b7834f758ff7ba6776282417.pdf?index=trueIn PDF document text
    • https://59548cc9-d6a6-4b2e-bd73-2bfb7290c7b5.filesusr.com/ugd/3fd21f_acdcf1c3c4f4403ea261cbcaf15a82a5.pdf?index=trueIn PDF document text
    • https://61069a5e-3c5f-4884-a3c7-8c7552058b74.filesusr.com/ugd/0789d5_4cf1ea8acf564d47bf96cd820797b631.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/25800846687.pdfIn PDF document text
    • https://b01cffea-7a05-49e8-9781-04202a21c04b.filesusr.com/ugd/d5d855_ec2d08b2d96f445f8d565c7324e62b64.pdf?index=trueIn PDF document text
    • http://wutesejib.onlinewebshop.net/kaworadonovedevexunugale.pdfIn PDF document text
    • https://667abc8f-92ca-45d9-bc9d-789c80a68858.filesusr.com/ugd/dcd78f_974f59149bf848b992b905a5871acf9c.pdf?index=trueIn PDF document text
    • https://5b3fc17b-a4fb-4144-9a53-ff617e35bc6a.filesusr.com/ugd/696117_442a477af01e4cec83c20242b3d1caba.pdf?index=trueIn PDF document text
    • http://likutolejit.onlinewebshop.net/cambridge_checkpoint_science_workbook_1_peter_riley.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxalowafokuvo/55892567441.pdfIn PDF document text
    • https://0b670cc3-d94b-4117-8b98-7ce677fb6c21.filesusr.com/ugd/7bc559_8146eefb89e64d95bde4ee4fdbd28567.pdf?index=trueIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD7A 5396 bytes
SHA-256: d440b5373591d1a7817ba5d3c4f3037a769d46d483448cb008155e8ada513bf4
font_01_sfnt_off0000efe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE3 10216 bytes
SHA-256: 6fb123f36c2b0098212f658bf6ff4e7bddb957b79e78e54c9245d8465410d3ea

Open this report in the interactive analyzer, or submit your own file for analysis.