Malicious PDF — malware analysis report

Static analysis result for SHA-256 54f2606b3830c400…

MALICIOUS

PDF

78.7 KB Created: 2021-03-04 07:46:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 24c22644e837c606cb8ef02a3724cc53 SHA-1: d0eb7ef3eb9a277f131ad8ad50effe23de34545e SHA-256: 54f2606b3830c4000e3f9d0fadd1caca2e9bea92b759a8b5838b983edebd6d90
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'fokemale.ru', which is likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into visiting a malicious website, potentially to download further payloads or steal information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://fokemale.ru/award?keyword=what+does+primal+force+mean PDF link annotation
    • https://negapisege.weebly.com/uploads/1/3/4/6/134635707/joparowemik.pdfIn PDF document text
    • https://cdn.sqhk.co/vekuperik/ihhaTDB/ninja_sushi_menu_auburn_ca.pdfIn PDF document text
    • https://cdn.sqhk.co/gupimupiset/ihhbVgj/hungry_shark_world_is_online_or_offline.pdfIn PDF document text
    • https://kutebebi.weebly.com/uploads/1/3/4/5/134528954/kororoxemonob-gobaj.pdfIn PDF document text
    • http://powajaxib.medianewsonline.com/11327078973.pdfIn PDF document text
    • http://fejiximodanu.mygamesonline.org/is_no_game_no_life_coming_back.pdfIn PDF document text
    • https://cdn.sqhk.co/xebibugekux/jd4NKrN/37539796016.pdfIn PDF document text
    • http://azakalaza3.xyz/xuwowanofepavazixas6h41b.pdfIn PDF document text
    • http://ru-payment.casa/damuz8aasa.pdfIn PDF document text
    • https://cdn.sqhk.co/jifibipex/hcghfhf/history_of_ancient_civilization_charles_seignobos.pdfIn PDF document text
    • https://zidoboxeped.weebly.com/uploads/1/3/5/3/135324118/1719806.pdfIn PDF document text
    • https://worivoka.weebly.com/uploads/1/3/4/5/134588103/9894044.pdfIn PDF document text
    • https://gegixigozazewit.weebly.com/uploads/1/3/4/8/134858275/43f8487aa.pdfIn PDF document text
    • http://legiontry.online/safety_first_guide_65_convertible_car_seat_installation7snu1.pdfIn PDF document text
    • http://onsideball.info/monoxupiwibubiresokaftzre.pdfIn PDF document text
    • http://kogutojoveso.mywebcommunity.org/kenwood_tm-d710g_mods.pdfIn PDF document text
    • https://cdn.sqhk.co/segevenujuka/bMihhab/famous_french_songs_sung_in_english.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://s3.amazonaws.com/xifabilejilab/sulodatotamodixujofuvo.pdfIn PDF document text
    • https://s3.amazonaws.com/nawuvud/dilotejovugofenim.pdfIn PDF document text
    • https://s3.amazonaws.com/potofaw/tamilrockers_burma_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/gta_san_andreas_cheats_ipad.pdfIn PDF document text
    • https://s3.amazonaws.com/jipowumat/nelemuvijelukavona.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_off0000ec81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC81 5196 bytes
SHA-256: febd4cb4ce3edcaa4992c496c232dc27eae7c8e4ae472037d632cb1af21dfe19
font_01_sfnt_off0000fe10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE10 9648 bytes
SHA-256: acfd90fe9c7ca47af8a6a86ff011d26205d578772d34690b1a3dba7131744bf4
font_02_sfnt_off00011eef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EEF 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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