Malicious PDF — malware analysis report

Static analysis result for SHA-256 518ed77e2db10336…

MALICIOUS

PDF

78.0 KB Created: 2021-03-12 15:29:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e6432423ab230e3607562ed1cce9dde7 SHA-1: 8afd69e7278497a222ac6fb40d947a99c006f6a1 SHA-256: 518ed77e2db10336c204eb694e5cd9aab466ae74c53d810ef1e9814d30e6b5e1
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 0.9996

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://soxebez.ru/strik?utm_term=director+of+project+management+salary+nyc PDF link annotation
    • https://voledobaseju.weebly.com/uploads/1/3/0/9/130969813/6723544.pdfIn PDF document text
    • http://lapiwudoxavov.scienceontheweb.net/chronicles_of_narnia_the_silver_chair_download.pdfIn PDF document text
    • https://lurufakezudaka.weebly.com/uploads/1/3/4/8/134884294/e513b58857bf1b7.pdfIn PDF document text
    • http://bottlechainworld.com/best_screen_recorder_online_freeaovf1.pdfIn PDF document text
    • http://teleporttur.ru/what_were_the_vikings_like_ks2muauk.pdfIn PDF document text
    • https://zafitageleg.weebly.com/uploads/1/3/4/4/134489703/funivulukepuregib.pdfIn PDF document text
    • http://mamefumiwuto.mywebcommunity.org/60960704629.pdfIn PDF document text
    • http://lnstagram-copyright-confirms.com/hp_4050_laser_printer_tonerx6lro.pdfIn PDF document text
    • http://fbcopyright-center.com/86076515836l0fkf.pdfIn PDF document text
    • https://kagodititaf.weebly.com/uploads/1/3/4/8/134868324/3824888.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/02972426-9ad6-4953-8d63-0d9bc2e92c4d/74294892533.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/dnn_setup_guide.pdfIn PDF document text
    • http://disoluje.myartsonline.com/kepinewujafetoredizez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7298b1cb-be3d-4015-98f6-ca161236d0be/how_to_clean_head_on_dyson_v11.pdfIn PDF document text
    • https://s3.amazonaws.com/juliziwojatige/baixar_livro_parbolas_de_jesus.pdfIn PDF document text
    • https://c6111751-42b6-464f-a8b1-832d492ff999.filesusr.com/ugd/3d0627_118edb27b495417cb5a9f98dbfe51cdc.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/bd956c31-8fda-42b8-815e-76528db58ae0/23006174508.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b306aa4-5f9c-43b2-b855-e85edd69a617/what_is_a_level_5_leadership.pdfIn PDF document text
    • https://989eff4c-946f-4221-9817-1a8d60f2082d.filesusr.com/ugd/7edf14_877489948c0443628c3dce4d0e7a74d3.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/pafiganovavi/android_x86_vmware_screen_resolution.pdfIn PDF document text
    • https://feedbc21-cb93-402c-9ae2-3476589645d2.filesusr.com/ugd/f3ecbe_c275fb8c5e7b4fcbb8fae25cb6f0c50b.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_off0000f3cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3CC 5512 bytes
SHA-256: 46caa15ea8289b5030e990fd19f3821458f9ede2f6f826d77cf6fb4d81f0b475
font_01_sfnt_off00010689.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10689 10648 bytes
SHA-256: 48c56b32e0d05d9379e8188b839b0dbae9fa85f1dd68feee680de8784325145b

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