Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5841f04875f11ae…

MALICIOUS

PDF

80.1 KB Created: 2021-02-27 21:26:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a42d65ba55386436c99d71ea99dcc797 SHA-1: 47f292e2aff6476fd3e35a0cd4cba38a1775e80e SHA-256: b5841f04875f11aed9080e6100456270c5ea490e65a61c8f3ad46ec1b85663f2
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The embedded URL, 'https://resalured.ru/wix?keyword=check+iphone+status+under+contract+-+option+pending', suggests a phishing lure related to iPhone contract status. While no scripts were explicitly extracted, the PDF structure and the presence of external URIs are common in phishing documents designed to redirect users to malicious sites.

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://resalured.ru/wix?keyword=check+iphone+status+under+contract+-+option+pending
    • http://gezowipefu.22web.org/35303580492.pdf
    • https://cdn.sqhk.co/gabazumad/evfjhii/kemezoxaludupodunu.pdf
    • https://cdn.sqhk.co/girolivudafo/VjeetoE/2_player_local_co_op_pc_games.pdf
    • http://kulixebuvalafin.iblogger.org/83642313804.pdf
    • http://converstarget.ru/nefuxupabibibijumazafidasdhyv.pdf
    • https://cdn.sqhk.co/sevafeluba/hckKP8x/aww_pobrecito_translation.pdf
    • http://wemuwetafivaxe.sportsontheweb.net/linking_words_list_english_german.pdf
    • https://cdn.sqhk.co/kazamepa/CwgdjaX/wwe_champions_2020_mod_apk_android_1.pdf
    • http://awpmode.com/929164491054in9x.pdf
    • http://kerutugizuxig.mygamesonline.org/metal_gear_solid_5_definitive_edition.pdf
    • http://lezigovedavide.getenjoyment.net/baby_goats_bouncing_on_trampoline.pdf
    • https://cdn.sqhk.co/fupipevu/Qehbig5/xaboninawazup.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://wulitebajanuba.rf.gd/ruinart_rose_champagne_tech_sheet.pdf
    • http://karapazixegipi.epizy.com/12280630808.pdf
    • http://gukupexokopiwug.epizy.com/simple_predicate_and_complete_predicate_worksheet.pdf
    • http://wopolew.rf.gd/kizuduxawuwowobozize.pdf
    • http://kabekexivebinef.epizy.com/data_structures_in_java_examples.pdf
    • http://duxegejuw.atwebpages.com/xixolivipituwijewebar.pdf
    • http://ladobuvop.epizy.com/37168135412.pdf
    • http://podakeluri.rf.gd/2021_lexus_is_350_f_sport_invoice_price.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_off0000ecd9.bin
e59394d82b536623d0027c4a33b90eb48d0020574bb44559f0e06a22f037cdfb
pdf-font-stream PDF embedded font (sfnt) at offset 0xECD9 5304 bytes
font_01_sfnt_off0000fed9.bin
7e17a4235c3c1a47087d2b6259b61e1b80808ef1c967ff192beb0cb597860cf8
pdf-font-stream PDF embedded font (sfnt) at offset 0xFED9 11052 bytes
font_02_sfnt_off00012499.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x12499 4324 bytes