Malicious PDF — malware analysis report

Static analysis result for SHA-256 098d0f7d57036af7…

MALICIOUS

PDF

84.0 KB Created: 2021-04-07 00:44:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: afbce97c5f966bef2eb9e06f99d38736 SHA-1: 2b26e75fd56f4fe7c2bf29d9ccc78bc35c5abd73 SHA-256: 098d0f7d57036af74eb4e6275b5d9b25b94cdb9da7332b67c1ca80789ad85ff8
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely intended to trick the user into downloading further malware or revealing sensitive information. The document body, though heavily obfuscated, appears to be a lure related to search results.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://xezojetit.ru/wix?keyword=psychsim+5+catching+liars+answers
    • http://dojisef.iblogger.org/booster_seat_guidelines_nebraska.pdf
    • http://govnosiakxws.online/vofes9w3ky.pdf
    • http://cmbespaceclient.xyz/nukodaxudanevomisuli4ju6j.pdf
    • https://cdn.sqhk.co/lefidotoxono/jh1FFie/ripexowosiguwewebuju.pdf
    • https://cdn.sqhk.co/petebeki/SgitIVp/vewugol.pdf
    • https://cdn.sqhk.co/posebozej/2nxrjdN/bandicam_free_download_filehippo.pdf
    • http://punevufazeji.iblogger.org/guvuvemadorobefezibuku.pdf
    • https://cdn.sqhk.co/gabixeme/ib2jhjg/punuzazanixej.pdf
    • http://opssmall.space/acer_nitro_5_spec_sheetd0ctf.pdf
    • http://jirapunobos.22web.org/renesuj.pdf
    • http://eeuuurrrrr.space/what_is_the_price_of_fz_v2_in_nepali6hqe.pdf
    • https://cdn.sqhk.co/zexoribuj/ohjhcuV/2576701560.pdf
    • http://yourbigdick.space/beethoven_moonlight_sonata_sheet_music_for_beginnerssvyxq.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/1a783daa-be90-46bc-a1e9-6a09b2e1d8a3/fijapedenejar.pdf
    • https://uploads.strikinglycdn.com/files/7bcda465-8cf3-41f8-be5d-45e34aa1331b/85674145473.pdf
    • https://uploads.strikinglycdn.com/files/861c4be6-8da3-42f8-825b-92abfdd43d27/dungeons__dragons_game_masters_guide_-_spielleitererhandbuch.pdf
    • https://uploads.strikinglycdn.com/files/bd40a1fb-284c-4a44-97a5-5b300df2616a/charles_bukowski_go_all_the_way_youtube.pdf
    • https://uploads.strikinglycdn.com/files/ddfbfc74-84d5-4d62-ba39-e6ed6e675c07/60639506495.pdf
    • https://uploads.strikinglycdn.com/files/b4e4c1f3-324b-4536-a4ad-17279b86c64d/21851109691.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd5f.bin
e7188ae6b57a150fa3edc4ba851bb268b7e272e76a8e0a4ffadcae36f28c98f2
pdf-font-stream PDF embedded font (sfnt) at offset 0xFD5F 5212 bytes
font_01_sfnt_off00010ef4.bin
fa244ece0927fc8604df991ebe787995c439c9da2b203ea27ec8e78d25374694
pdf-font-stream PDF embedded font (sfnt) at offset 0x10EF4 11312 bytes
font_02_sfnt_off00013530.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x13530 4324 bytes