Malicious PDF — malware analysis report

Static analysis result for SHA-256 eae7915c24194a1d…

MALICIOUS

PDF

105.8 KB Created: 2021-04-11 18:41:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 029aa7674671a18bf783df26311133b3 SHA-1: 2849ed9e3837eaa44461026172d67cbc342753a6 SHA-256: eae7915c24194a1d7569bc995e48824116072c03a97fdf016eb3bf533b883f58
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, with one pointing to a link farm on disposable hosting, suggesting an attempt to redirect users to malicious sites. The PDF's structure and the presence of many external links indicate a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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://fokemale.ru/strik?utm_term=d%2526d+5e+character+book+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4408324/normal_5fd336fe486b5.pdfIn PDF document text
    • http://tobaliwono.mygamesonline.org/ata_100_chapters_list.pdfIn PDF document text
    • http://cheatyou.site/dimawatutygtoy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369183/normal_6004de4a45322.pdfIn PDF document text
    • http://rinujajija.getenjoyment.net/10960350622.pdfIn PDF document text
    • http://ru-order-687646765445.art/xazufotatososokepanka53h.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389354/normal_6058905ce0847.pdfIn PDF document text
    • http://about-central.com/75313527200lulb7.pdfIn PDF document text
    • http://jiwapadenejeza.getenjoyment.net/vuxegutupal.pdfIn PDF document text
    • http://ehaberdevlet.com/25081461698odrxi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408993/normal_606e75ec9e6fe.pdfIn PDF document text
    • http://pufivuziviv.mypressonline.com/laxekejarafimofu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470035/normal_6028874dd3eaa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366959/normal_5fd83c75a43bf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391303/normal_5ff2578abac40.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/48ef70f6-550a-4565-bf4d-338fd6090c34/fly_fishing_lures_for_saltwater.pdfIn PDF document text
    • http://wegamaluperetuj.atwebpages.com/cbse_class_11_ncert_chemistry_textbook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47e03c8b-09f2-4da3-a0f7-1cd7f5b733f1/why_is_als_difficult_to_diagnose.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e1afbe6b-a148-4687-bab3-a3b2f48c7d35/fundamentos_de_marketing_digital_google_respuestas.pdfIn PDF document text
    • http://pupagerirawax.myartsonline.com/printed_circuit_board_materials_handbook.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_008_off000187b2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x187B2 6504 bytes
SHA-256: 24360cdb7014ada8aa5e6f1d3277a2d71ef7b6d1dc3bf288ea9a040c472e669a
font_00_sfnt_off0000fdf5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDF5 7516 bytes
SHA-256: 075fb9e944568478c94e38805233b1125798969703103af32602e568e806d8e3
font_01_sfnt_off0001117b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1117B 3148 bytes
SHA-256: a277baa0363301820e691350cb860598f83a55ab5f470b69e31f1ace31f899c5
font_02_sfnt_off00011cba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CBA 4156 bytes
SHA-256: 7b9a78bc71d00e4bcff8473d51fc82c270a18144a13d22e5cfd906eda86eaada
font_03_sfnt_off00012aa8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12AA8 6280 bytes
SHA-256: 9b26e63dddb061148d2096f8a3abd9ddbfbe7663dcfe2e6edc24d1b84c1ba01d
font_04_sfnt_off00013a12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13A12 19028 bytes
SHA-256: c9b10c78770f2954660779bd8ee71f95246157a6e72244d47f9accf72df4a5cf
font_05_sfnt_off00017114.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17114 16516 bytes
SHA-256: 04fe25b29f051d70f1708f46f478918d30a58f8dd56488b8fb7dbeafae74b6e1

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