Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcc106ae93380b47…

MALICIOUS

PDF

74.2 KB Created: 2021-03-16 02:06:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79303ece977e901e83d2d45cc8d4f971 SHA-1: 5280c012dd557b799dc2161aba4208f8d73c924f SHA-256: fcc106ae93380b4734ee5972f71c5cc579c8b5fb12906b252a3352c90230a1e0
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of a malicious URL within the document body suggests an attempt to redirect the user to a harmful site, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://soxebez.ru/wix?keyword=final+fantasy+iv+pc+augment+guide
    • https://cdn.sqhk.co/jatobeguji/njiuVhg/66413292205.pdf
    • http://dosubodanes.mypressonline.com/josovukowexozenukus.pdf
    • https://static.s123-cdn-static.com/uploads/4466366/normal_5fc836db4588a.pdf
    • https://cdn.sqhk.co/sowojusawepu/i95vBL2/14109823276.pdf
    • https://cdn-cms.f-static.net/uploads/4455642/normal_60312de997abc.pdf
    • http://lobabinuladeri.medianewsonline.com/golejifukefalusoj.pdf
    • http://zunuruxeguxifi.mygamesonline.org/disegilozobelovozogi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/7a58d097-660d-4392-804f-9eba2d567012/honeywell_thermostat_ac_not_working_on_auto.pdf
    • https://s3.amazonaws.com/tuletivotarupu/kojovupokata.pdf
    • http://widifusi.myartsonline.com/denon_x4000_ebay.pdf
    • https://uploads.strikinglycdn.com/files/edfdb53b-9c7f-44af-bb3b-b593f5d4d8eb/similar_books_like_me_before_you.pdf
    • https://uploads.strikinglycdn.com/files/d79820b7-14d6-4a77-bacc-a06b5263895c/zewajuzam.pdf
    • https://uploads.strikinglycdn.com/files/928e18da-f7d8-403b-a009-e1916af4aaa8/how_to_determine_cost_of_building_a_home.pdf
    • https://s3.amazonaws.com/roware/funny_animal_animation_video.pdf
    • https://uploads.strikinglycdn.com/files/743a6ba7-a7fc-4a54-a0e0-f0fd800aad56/nilirubod.pdf
    • https://s3.amazonaws.com/medaliwifufugel/44286290883.pdf
    • https://s3.amazonaws.com/temujonuwu/devil_may_cry_4_apk_obb.pdf
    • http://nukivamo.myartsonline.com/how_to_fix_a_leaking_refrigerator_ice_maker_water_line.pdf
    • http://raxajabidadida.onlinewebshop.net/the_holy_quran_book.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e4a2.bin
9ea0dbc6bdbbcdac956d24a7592145a9d0b1ea8dd8d30441933a216201e7c0f0
pdf-font-stream PDF embedded font (sfnt) at offset 0xE4A2 5496 bytes
font_01_sfnt_off0000f75f.bin
0eca5a07de857a69800a1731eb68475216e31463a919c05fcf82c60f384f6ff4
pdf-font-stream PDF embedded font (sfnt) at offset 0xF75F 10752 bytes