Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fbd2f9cfdd3e121…

MALICIOUS

PDF

82.7 KB Created: 2021-04-08 01:13:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: d7e785bddc4651a8ab6e81cbf01deb10 SHA-1: dbc8f9c24b0d38675abca05ddf0838c00608676d SHA-256: 2fbd2f9cfdd3e1217d03ef73f4a0a381e84a79b1c81cb0e6ada8ad098fa204e1
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm used for phishing or malware distribution. The document body, though heavily obfuscated, appears to be a lure related to treadmill parts, directing users to external URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jottigo.ru/strik?utm_term=healthrider+h550i+treadmill+parts PDF link annotation
    • https://semebikifotiz.weebly.com/uploads/1/3/4/7/134752265/5f05bae.pdfIn PDF document text
    • https://cdn.sqhk.co/reparepoki/bgggcYJ/94579364377.pdfIn PDF document text
    • https://cdn.sqhk.co/benibavagoge/ieFjcmH/sixukuwufinumibova.pdfIn PDF document text
    • https://febefadu.weebly.com/uploads/1/3/1/4/131453100/gedunefokebinen.pdfIn PDF document text
    • http://puxefesezosowej.22web.org/apple_ipad_air_user_manual.pdfIn PDF document text
    • https://xikoroto.weebly.com/uploads/1/3/4/3/134338579/8766117.pdfIn PDF document text
    • https://nepikazot.weebly.com/uploads/1/3/4/5/134526085/6105256.pdfIn PDF document text
    • https://cdn.sqhk.co/xamitarerivu/0hfhbH8/facebook_business_suite_app.pdfIn PDF document text
    • https://xukokamil.weebly.com/uploads/1/3/4/3/134317204/6497766.pdfIn PDF document text
    • https://goxatuzibifonev.weebly.com/uploads/1/3/0/7/130739188/5799491.pdfIn PDF document text
    • https://dotofufodil.weebly.com/uploads/1/3/5/3/135313806/pozup.pdfIn PDF document text
    • https://jasujoru.weebly.com/uploads/1/3/1/4/131483343/jajonanepezot_damapujiv_tavedatigiv_ronije.pdfIn PDF document text
    • https://suwelebebos.weebly.com/uploads/1/3/5/9/135959353/risupo.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
    • https://ae40ec61-d20a-40a8-9c94-208d4569f534.filesusr.com/ugd/5d0862_b3aa4730b625423fbabafdb88ff14df2.pdf?index=trueIn PDF document text
    • http://daremafuxabo.rf.gd/1000_bosquejos_biblicos.pdfIn PDF document text
    • https://af4bb04d-41a2-413c-b691-ce0a46ff998d.filesusr.com/ugd/e677f8_47198a8f9a6f434cbb58807892bf87ee.pdf?index=trueIn PDF document text
    • http://molodoku.rf.gd/fawife.pdfIn PDF document text
    • https://75e6d08a-b14f-4c2c-bd4e-3e6431d9d11c.filesusr.com/ugd/497a87_9795862a74a8416e92bf3bb4eca41e4e.pdf?index=trueIn PDF document text
    • https://3b1a0cff-dc54-4917-88c1-cdf904a8db56.filesusr.com/ugd/60aab8_4289ffd8ed1d496eadc8e29d48fdc4ee.pdf?index=trueIn PDF document text
    • https://e824aeac-d22a-4b45-bb3c-17051d6ee04f.filesusr.com/ugd/de60da_1786821c20cb46a18ab0fff2c8b82209.pdf?index=trueIn PDF document text
    • https://ff06b2c9-6223-4357-b4d5-1bf3807c749f.filesusr.com/ugd/717131_1c9378ba675a40e08492e29404d4e2f4.pdf?index=trueIn PDF document text
    • http://modurogodolu.epizy.com/bigger_leaner_stronger_meal_plans.pdfIn PDF document text
    • http://votizabi.epizy.com/ginezurigozodareg.pdfIn PDF document text
    • https://38f9ccf9-db33-4582-994d-0ea518e52d38.filesusr.com/ugd/368de4_8497ca9a1bd24c2c8b47aad2cad1e67b.pdf?index=trueIn PDF document text
    • https://0bdb67af-4c57-4a6e-9706-714cc80719f5.filesusr.com/ugd/fc840b_c8033c25fa67476c8674856156bbcd49.pdf?index=trueIn PDF document text
    • https://1c3640e8-3530-4541-943d-4aa84fe9b526.filesusr.com/ugd/3e0cb9_e38baf302f864eea86a6493d21aa6b22.pdf?index=trueIn PDF document text
    • https://065b66ee-25d8-4381-b309-094abc4d823c.filesusr.com/ugd/2703e6_d7416ddec7ad47318689ee5d258c5b85.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f759.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF759 5000 bytes
SHA-256: fe4f8b5e53420d06f20506101b141ee5878293446c9cf5d4a4de9da551b40d68
font_01_sfnt_off00010847.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10847 11336 bytes
SHA-256: 08b5b25402e1a2b26e5b4cbb55cea94bb8b3ac73476c11f1039e03dd9a73bdc1
font_02_sfnt_off00012ecd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12ECD 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71

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