Malicious PDF — malware analysis report

Static analysis result for SHA-256 e13a87ea264c22da…

MALICIOUS

PDF

72.8 KB Created: 2021-04-14 10:48:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: 448c6e291a2dc342ae9b14570dafacd9 SHA-1: 80f886ae9d8725c6391122b3efea3206ef40cef9 SHA-256: e13a87ea264c22dae2012200bb4110099e19d26b6551ba20f1def93be51a72bb
156 Risk Score

Malware Insights

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

This PDF file is identified as malicious by multiple heuristics and an ML classifier, specifically flagged as a phishing trojan. It contains a large number of external links, suggesting a link farm or phishing campaign designed to redirect users to potentially harmful websites. The primary lure appears to be "Thermador range cleaning instructions", which is likely a pretext to disguise the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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.
  • 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=thermador+range+cleaning+instructions PDF link annotation
    • http://vijevejumozugim.sportsontheweb.net/simply_for_life_keto_recipes.pdfIn PDF document text
    • http://mists.space/vw_car_dealers_near_me8iq5e.pdfIn PDF document text
    • http://dexuposi.sportsontheweb.net/convert_to_word_online_for_free_without_email.pdfIn PDF document text
    • http://deromgroup.com/have_yourself_a_merry_little_christmas_jazz_guitar_chord_melodyy03i7.pdfIn PDF document text
    • http://sivelural.mygamesonline.org/gta_san_andreas_cheats_codes.pdfIn PDF document text
    • http://fuxutigox.mypressonline.com/79256009642.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fitilusulisi.epizy.com/15190025599.pdfIn PDF document text
    • https://4647adb0-9c01-46a1-aef1-4380d5873f13.filesusr.com/ugd/edb4a7_73cc75f6aff84973805b53fc44c2b561.pdf?index=trueIn PDF document text
    • https://2386e270-bd20-42c1-b3e5-1ba7eaa1d68d.filesusr.com/ugd/b4f0c6_9ec8f6c15c7343dfbab00ebaced6d9f6.pdf?index=trueIn PDF document text
    • https://7f03322d-63d6-449b-a8c2-a80beffeb2b6.filesusr.com/ugd/2994dd_767c6d7a0339465c8377a5b856e38ae8.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/winumigutam/wasawidipenikasodiwamafuv.pdfIn PDF document text
    • https://79c9c32e-6572-42fd-9c0e-61d057d48a34.filesusr.com/ugd/33a1c8_b0621cc3d0c543838c90ab3dc078b4fe.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/patotale/mufiliwakuzibijukebanet.pdfIn PDF document text
    • http://juwikiz.epizy.com/loxakisunotuvukilijesigat.pdfIn PDF document text
    • https://855e1e5b-0daf-4dce-aa73-dfad2bfec5df.filesusr.com/ugd/ced2dc_50816cea81b342bc81cef2a460df6282.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/mubefula/49535294562.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/b_pharma_ka_full_form.pdfIn PDF document text
    • http://nojikigor.myartsonline.com/kezoputuzagixolel.pdfIn PDF document text
    • https://9fb0fece-6c2a-4f8b-8ff1-5d9ea67f5ee7.filesusr.com/ugd/f6a907_ea25951aaaf841de87edfea6d43c40d5.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/mojivikapeti/casio_ctk_720_driver_mac.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d3d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3D8 3304 bytes
SHA-256: 7db4aa9dcfc42b3a6ef9a04f555e0b2fea6a31cf0b1e3bf67d3f0cf3b72bc559
font_01_sfnt_off0000dfbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFBD 5300 bytes
SHA-256: f3a15807a0a12ac14554003a85369a75b43ba288b5f1e2744403e3ef00de87d5
font_02_sfnt_off0000f197.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF197 10604 bytes
SHA-256: ea11bb6417f9d05db618c7ad5594ff0aba72e285d2512609410378b68f074320

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