Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6e69e2118a51934…

MALICIOUS

PDF

99.8 KB Created: 2021-02-22 05:51:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: abfd0b6fbac36f1cd2ccdc8ace009b85 SHA-1: f719ade5abea11864836b599f20c4817c0330f70 SHA-256: d6e69e2118a51934cbf637a55d15eeee1c47d6aca619d1f963a58ac815d877ef
126 Risk Score

Malware Insights

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

The PDF file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It utilizes SEO-optimized keywords and disposable hosting to appear as a legitimate download, specifically mentioning 'mcdonalds training manual download'. The embedded URLs suggest an attempt to redirect users to malicious sites for further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://crophysi.ru/wix?keyword=mcdonalds+training+manual+download PDF link annotation
    • http://japancar-sib.ru/9987694874418990.pdfIn PDF document text
    • http://uspex22.online/xuwozojegey2qpu.pdfIn PDF document text
    • http://peuly.xyz/ultimate_combat_tk_dodge_conflict4zhm3.pdfIn PDF document text
    • https://cdn.sqhk.co/jenojigise/dPWiahh/xodaxumimogigixezi.pdfIn PDF document text
    • https://cdn.sqhk.co/wujozuzewed/gYhh1EQ/87419422275.pdfIn PDF document text
    • http://newsportstechnology.ru/362658717867blzq.pdfIn PDF document text
    • https://cdn.sqhk.co/rapowipijes/jeE08he/nojawiw.pdfIn PDF document text
    • http://gagerovovus.22web.org/letter_number_grid_map_worksheet.pdfIn PDF document text
    • http://detonic-hypertonie.website/kalevutetiwujizetojapedefy9b8.pdfIn PDF document text
    • http://grusha.space/employees_provident_fund_scheme_form_10c6i2ch.pdfIn PDF document text
    • http://prizinsta24.site/1309712260144nk9.pdfIn PDF document text
    • http://upgrade4me.com/wrong_turn_full_movie_isaiminio16xu.pdfIn PDF document text
    • https://cdn.sqhk.co/pajerelo/Xkongdq/pusodozinaz.pdfIn PDF document text
    • https://cdn.sqhk.co/rularijulen/iPmWKii/bridge_construction_simulator_level_9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vokeri/action_plan_format_for_marketing.pdfIn PDF document text
    • http://bokapobutiz.rf.gd/kaspersky_antivirus_free_for_android_mobile.pdfIn PDF document text
    • http://rusavuwirajul.rf.gd/18029349847.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/dezepojomiz.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/asrock_bios_utility.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010953.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10953 4116 bytes
SHA-256: 16869ec1aff2633948147ca8d46997d15fa04279bc3006a8bd8f867dfbaba939
font_01_sfnt_off000117cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x117CB 5356 bytes
SHA-256: d44244746eb5a26fb33485d192fce2516cbdef124975914eac1c9e5266f97b6f
font_02_sfnt_off00012a04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A04 15136 bytes
SHA-256: f4839080bc2ad64a4cfc50599a8a1a10bae60f23318816f89ade29905273e84a
font_03_sfnt_off00015a50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15A50 16596 bytes
SHA-256: 3b7cd682927c8a649f91305ebb6f4d765de3a60dd7fb54db538d628c244f8ad6
font_04_sfnt_off0001712a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1712A 6252 bytes
SHA-256: 2b2bb99a13ba8867974bda9880fa3854a3812e6cd45f203986b00ffd5dfe567b