Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb0d5dad56e03790…

MALICIOUS

PDF

71.9 KB Created: 2021-03-24 10:57:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2746113787f827e3c7ec53a65d17c9d8 SHA-1: de43dd94ddac28c48c2c38bf93babe954b2ccac7 SHA-256: fb0d5dad56e03790fc9fbf1b9b6638e6d9763ae961163eeb489c9fc19b69f9ea
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, specifically flagged as a phishing trojan. It contains an embedded URL that mimics a search query, likely intended to trick the user into clicking it. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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://ponafet.ru/wix?keyword=vocab+level+f+unit+8+synonyms+answers
    • http://ayazshabutdinov.club/the_little_prince_antoine_de_saint_exupery_summary8qg2r.pdf
    • https://sinitilelimokiz.weebly.com/uploads/1/3/4/3/134348988/7574460.pdf
    • https://demijejave.weebly.com/uploads/1/3/4/6/134607426/dokofofeku.pdf
    • http://chisto-chisto52.ru/toyota_production_system_tpsdo4uz.pdf
    • http://my-favshopd.online/81987595300dss2g.pdf
    • http://groshyk.site/621836914258nt4s.pdf
    • https://vapasunodisina.weebly.com/uploads/1/3/0/8/130873802/budofojadomaxu.pdf
    • https://makifilibavik.weebly.com/uploads/1/3/5/3/135383918/sekuduvopasa_xobesebo_kimoso_jizodafaxul.pdf
    • http://sodalabs.pro/breville_toaster_oven_reviewz8zp2.pdf
    • http://letxxnx.org/how_to_hang_a_wooden_sign_without_nailsibnq8.pdf
    • http://crispyset.online/how_to_string_a_necchi_sewing_machine58wog.pdf
    • http://tegor.xyz/grohe_bridgeford_kitchen_faucet_loosery795.pdf
    • http://petersikdar.com/how_shall_i_love_thee_shakespearert0p9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://marakolin.epizy.com/asbestos_containing_vinyl_sheet_flooring.pdf
    • https://s3.amazonaws.com/fidobakipivogit/24125170828.pdf
    • https://s3.amazonaws.com/muwemivumazulax/regozijinarugovagi.pdf
    • https://s3.amazonaws.com/palikuvexake/autodesk_3ds_max_2016_essentials.pdf
    • http://tinuzutajalik.epizy.com/acura_rl_transmission_problems.pdf
    • https://c63ca81c-6df4-4ec3-bc2e-8508f29a6879.filesusr.com/ugd/d48fe3_d91cbb1fb84d4f1b8a4e4498b099554e.pdf?index=true
    • http://mozizilusonasij.epizy.com/mcqs_on_protein_structure_and_function.pdf
    • https://0502d5d0-a0f5-47b8-bc1c-644c46e4e431.filesusr.com/ugd/6cabbb_9147f39cb2c347f3bda5d16084b6b67c.pdf?index=true
    • https://s3.amazonaws.com/tinivukedeta/what_is_the_polar_bear_estimated_population_today.pdf
    • https://6d428a25-da86-44fa-8f13-5b0f09742281.filesusr.com/ugd/3649d2_3ecd5a45615b4b7793a3b4c28f9c7911.pdf?index=true
    • https://d429d46a-6203-486b-8c9d-ede5597e1383.filesusr.com/ugd/419b00_bf6c4fbf9e714142a7bd6c6343393c22.pdf?index=true
    • http://vopepogam.rf.gd/dobosewe.pdf
    • https://s3.amazonaws.com/juvetaso/what_line_of_latitude_is_the_tropic_of_cancer.pdf
    • https://e0220c8c-c322-4c33-af83-7c5b0fe00b66.filesusr.com/ugd/a771bd_ab5dce5f4a6040d6b246f156ac661d73.pdf?index=true
    • http://vedegisawopuf.epizy.com/pijegevujukupofonelafes.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_off0000d07a.bin
49f090903c9bc66b4243cebff263b435971266e254e5bc0e966622caffa45902		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD07A 5460 bytes
font_01_sfnt_off0000e308.bin
a331b64bc48cf001e7f2e51cb3b886252e027b0ff058986dfcde9b905400df17		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE308 9592 bytes
font_02_sfnt_off000103b7.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103B7 4324 bytes

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