Malicious PDF — malware analysis report

Static analysis result for SHA-256 2019ef48ace3f9f2…

MALICIOUS

PDF

113.7 KB Created: 2021-05-17 22:43:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c81fe032924a5d6c6393a9f456a74afa SHA-1: b4edc6c32d2e093f41af6909961dc46bf1e211bf SHA-256: 2019ef48ace3f9f21d51d9920eb28eec8423f2e23798413e111f308159645881
176 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains a heuristic firing for PDF_SEO_LINK_FARM, indicating a large number of external links, and a critical ClamAV detection for Pdf.Phishing.Trojan. The embedded URL https://leonvi.ru/strik?utm_term=wifi+password+recovery+pro+mod+apk is likely the primary lure, disguised as a Wi-Fi password recovery tool. While no scripts were explicitly extracted, the nature of the PDF and the presence of external links suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9830

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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://leonvi.ru/strik?utm_term=wifi+password+recovery+pro+mod+apk PDF link annotation
    • https://s3.amazonaws.com/firigugixujotov/event_planner_cv_template.pdfIn PDF document text
    • https://s3.amazonaws.com/watajive/ultrasound_guided_aspiration_seroma_cpt_code.pdfIn PDF document text
    • https://s3.amazonaws.com/gorajikunobixi/44462282020.pdfIn PDF document text
    • https://jakemujilofadam.weebly.com/uploads/1/3/1/3/131380171/deferaladev_xixavivasasut.pdfIn PDF document text
    • http://xunajoza.22web.org/pefigibovolago.pdfIn PDF document text
    • https://juvikenozenukun.weebly.com/uploads/1/3/4/3/134322787/sanixexigud.pdfIn PDF document text
    • https://s3.amazonaws.com/jumedemimo/types_of_achievement_test_in_psychology.pdfIn PDF document text
    • http://luzovimivulurip.22web.org/list_of_latin_abbreviations.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/45388085331.pdfIn PDF document text
    • https://s3.amazonaws.com/dakebesuvum/adverb_practice_worksheets_4th_grade.pdfIn PDF document text
    • https://kifewaremavej.weebly.com/uploads/1/3/1/6/131606874/1992029.pdfIn PDF document text
    • https://s3.amazonaws.com/julexekubaj/new_bangla_audio_song.pdfIn PDF document text
    • https://s3.amazonaws.com/biwuwukesazef/play_store_app_karo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ab7c3fa-0f6e-44f5-bf87-5dd32b818641/31357233738.pdfIn PDF document text
    • http://xivobipitu.epizy.com/12387894427.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d021999-55b6-4ccf-a071-217fa644c9fc/66766390129.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/564e7536-7145-4c42-ab55-7ee70f3ef2d4/jumetewoduxa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/428cc600-504e-4b9c-9494-f249479ce6b6/kohler_generator_service_companies.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3b54eeb4-e8d8-4701-bd5e-215662c142e4/how_do_you_know_if_hes_genuinely_interested.pdfIn PDF document text
    • http://tibuwol.rf.gd/acute_gastritis_treatment.pdfIn PDF document text
    • http://jiwuwusa.epizy.com/26300024844.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.gnu.org/licenses/lgpl.htmlRegularDanhHongIn PDF document text
    • http://www.geocities.com/dnhhngIn PDF document text
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 8

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off00017e85.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x17E85 18772 bytes
SHA-256: 3e397b0756a6b2e743681578e3b01e5ba88331c901db5f8d1767dceb93361d0d
font_00_sfnt_off00010754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10754 5856 bytes
SHA-256: 8a0f821e465097056fc22deb6f0fe2392ba9b2a780ee200666f93c5713c2c415
font_01_sfnt_off00011bbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BBC 5204 bytes
SHA-256: fb14d4bbdd0c479d81bc787ca34da8b7cdf75e68624567ebae56bdc659faada8
font_02_sfnt_off00012d84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D84 5700 bytes
SHA-256: fe934df80a5facf2522d05c3a8c4e706b70a3c2ff1af5b845679b3fc7ea0a515
font_03_sfnt_off00013edc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13EDC 6148 bytes
SHA-256: 488ffee5e9c33bcc1f3f00aec749f35977d0cdd209ffadaee35194d66ecc177d
font_04_sfnt_off00014ebc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14EBC 15900 bytes
SHA-256: fa97ca16ee908f571c06c3b28a8d200d7da30e0f0ba170a9d9c99c423477b21e
font_06_sfnt_off00019c3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19C3E 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
font_07_sfnt_off0001aa3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AA3F 3248 bytes
SHA-256: 10f946bc08b2e81b34938ecb3c9ae555a2bd77c1c429a25cbde10d12e687b20c

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