Malicious PDF — malware analysis report

Static analysis result for SHA-256 53f6dfe8b26ff55f…

MALICIOUS

PDF

67.5 KB Created: 2021-05-10 23:54:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 07629959692d27be84acdd6bf8e11af3 SHA-1: 740aac285100f5f18a8ae6622b4b45bea7ea4bee SHA-256: 53f6dfe8b26ff55f02e0f88eda1e2ee669ad5a1b662d11d924103460af7f8682
156 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains a large number of external links, many of which are likely part of a link farm designed to manipulate search engine results or direct users to malicious content. The embedded URLs suggest an attempt to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://xajibur.ru/wb?keyword=haier%20portable%20washer%20hlp21n%20hose PDF link annotation
    • https://zaderurumanig.weebly.com/uploads/1/3/4/5/134588260/5636166.pdfIn PDF document text
    • https://cdn.sqhk.co/balekunu/BdhdheX/54310307653.pdfIn PDF document text
    • https://cdn.sqhk.co/detateseb/gprjdia/99744151822.pdfIn PDF document text
    • https://rudofodirofebas.weebly.com/uploads/1/3/0/7/130739781/xakexokirububel_pitisepovilifik_jojedutap_regenosof.pdfIn PDF document text
    • https://cdn.sqhk.co/xagunetoxa/hgifMzG/marketing_strategy_jobs_singapore.pdfIn PDF document text
    • https://fabevapomuwi.weebly.com/uploads/1/3/4/6/134607330/popapi.pdfIn PDF document text
    • https://noverike.weebly.com/uploads/1/3/4/3/134349253/650fb.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/sefabe/writing_and_naming_ions_worksheet_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/nijosinizo/how_to_estimate_reinforcement_in_slab.pdfIn PDF document text
    • https://s3.amazonaws.com/jodabiladezot/sokonakerikapawizor.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/sony_str-dn1030_bluetooth_pairing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ef0d9d7-b87e-407e-a778-8f3048fdee50/64119382986.pdfIn PDF document text
    • https://dda5c79a-a75d-44d9-a006-48dec3bfe172.filesusr.com/ugd/115d6e_f2781cbad32b41e8a1f5dd2c00cf770a.pdf?index=trueIn PDF document text
    • https://cb38ef3f-1f2c-4622-8962-dca261660167.filesusr.com/ugd/3ae201_eb7e3009b2334aa1b8c42ab3e8b31b18.pdf?index=trueIn PDF document text
    • https://1cdd1dcb-54a5-4750-95ad-c4cce9a68cd1.filesusr.com/ugd/1e32c2_d5316a92c8414e3cae35d03c0151e8fa.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/tennessee_crappie_fishing_reports_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66fbfe5b-d400-449c-8ad2-e64f4b309722/blackdecker_lst136_40v_max_lithium_string_trimmer_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/jefobexapulow/gisusafu.pdfIn PDF document text
    • https://s3.amazonaws.com/bipovoromoj/how_to_make_remote_control_ceiling_fan.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/ms_150_c-e_stihl_price.pdfIn PDF document text
    • https://s3.amazonaws.com/zevutebulaworel/1206068835.pdfIn PDF document text
    • https://s3.amazonaws.com/zunewidimem/tu_bhola_hai_bhandari_dj_ringtone.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6cddc990-52f1-4a5c-a31d-d2f06940774e/37001949548.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cc7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC7E 5284 bytes
SHA-256: 25d5b9dc225ce31bf1d07991169f12dd055998f9402017c0fb06865a944b7589
font_01_sfnt_off0000de7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE7C 10016 bytes
SHA-256: 02170032a66898e67d19e73dc1ccccb6249ff4d92fc8b4322acb0d413c51bbf4

Open this report in the interactive analyzer, or submit your own file for analysis.