Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e49669a2bfa680e…

MALICIOUS

PDF

79.4 KB Created: 2021-03-08 03:20:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 0674491db49c93354a707654755d93ff SHA-1: 19ea1b47676b5e11e8b66c33336e5cc33239f704 SHA-256: 0e49669a2bfa680e3e0d78aa5b8b098058878a3d5b56ebf49bd8987a6fea9a78
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. The document body and extracted URLs suggest a lure related to 'robots apk hack', directing users to download potentially malicious content. The presence of embedded URLs indicates an attempt to redirect the user to a malicious site for further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://bologen.ru/wix?keyword=robots+apk+hack+1.3.1 PDF link annotation
    • http://6gusevshop.website/englishman_in_new_york_clarinet_sheet_musicymdex.pdfIn PDF document text
    • https://cdn.sqhk.co/losopodelim/AiigjtU/27459528350.pdfIn PDF document text
    • http://tixshopclub.space/transistor_bjt_como_amplificador7r8yn.pdfIn PDF document text
    • http://worameruvejaka.mywebcommunity.org/frigidaire_mini_fridge_retro_6_can.pdfIn PDF document text
    • http://dfahsdfgjsfg.online/nintendo_error_code_234001k4ax.pdfIn PDF document text
    • https://cdn.sqhk.co/kisesawaropo/IMo7yjc/76516943615.pdfIn PDF document text
    • http://sis-paypal.com/sokubenimobofedgvx.pdfIn PDF document text
    • http://rutenowataba.iblogger.org/15827157647.pdfIn PDF document text
    • https://cdn.sqhk.co/sujubowip/oiijjxL/modern_warriors_military_discount.pdfIn PDF document text
    • http://morosoxumexax.iblogger.org/33460425608.pdfIn PDF document text
    • https://cdn.sqhk.co/dexizajifu/icjeghA/how_do_you_draw_a_ice_cream_truck.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/wapabefizosumi/comcast_tv_channel_guide_denver.pdfIn PDF document text
    • http://rotufixijisadi.onlinewebshop.net/79129027004.pdfIn PDF document text
    • http://matiwujujuwot.rf.gd/bapadopekilesebudile.pdfIn PDF document text
    • https://s3.amazonaws.com/fedojigudaj/advanced_systemcare_for_android_apk.pdfIn PDF document text
    • http://besasasef.rf.gd/free_you_ve_been_booed_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/apc_backup_550_manual.pdfIn PDF document text
    • http://xobabikek.rf.gd/application_letter_format_sample.pdfIn PDF document text
    • https://s3.amazonaws.com/xedewofuretujo/gokipupezizujore.pdfIn PDF document text
    • https://s3.amazonaws.com/werowibovezoje/sekutezi.pdfIn PDF document text
    • http://nogobixa.epizy.com/mahogany_tree_farming_project_report.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_off0000ecb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECB2 4868 bytes
SHA-256: 4f67d3318d68f8c6dd2bfb08f66d53f187a578cc0a6aea818f5ddcabc4f620d2
font_01_sfnt_off0000fd49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD49 11264 bytes
SHA-256: 4824a3c0b51de5af25de5f5b810a949f096dd7c3c1ce58488aa3676e7256689f
font_02_sfnt_off00012251.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12251 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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