Malicious PDF — malware analysis report

Static analysis result for SHA-256 053715693b54099e…

MALICIOUS

PDF

75.1 KB Created: 2021-03-19 00:27:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e45f33de5642976199fb9bd1d8e105c SHA-1: dad139209ae91d24fb615053a49834716e532ae5 SHA-256: 053715693b54099eb8588aa86fcdb6a9a6de97f72e2d2b84dd95bb3277ef6517
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics as malicious, including a critical detection for a link farm and a high ML score. It contains numerous external links, suggesting an attempt to redirect users to potentially malicious sites. The presence of embedded URLs and the PDF_SEO_LINK_FARM heuristic indicate a likely phishing or SEO spamming attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • 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.
  • 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://pelibifir.ru/strik?utm_term=best+portable+cd+player+boombox+reviews
    • https://cdn.sqhk.co/tazuxalana/hhhgcgj/happy_new_year_2020_images_hd_for_pc.pdf
    • https://cdn.sqhk.co/tojebaru/6rTgcNz/pojadumazopojubafedugefen.pdf
    • https://cdn-cms.f-static.net/uploads/4379369/normal_604494e1ef8a0.pdf
    • https://muxupodijem.weebly.com/uploads/1/3/4/8/134885552/karoposisibafedokava.pdf
    • https://cdn.sqhk.co/toviranevu/jhjdji8/21946665715.pdf
    • https://nidiladidubupa.weebly.com/uploads/1/3/4/7/134753920/dufenagome_redijegezig_gufowiburizefa_pexewerakerul.pdf
    • https://gisijenoxumo.weebly.com/uploads/1/3/1/4/131437849/zajikivu.pdf
    • https://cdn.sqhk.co/vibisidumes/5wbLUjd/10225811148.pdf
    • https://cdn.sqhk.co/xovikojux/eidjccW/52616315902.pdf
    • https://cdn.sqhk.co/besogevipadi/Fiiiiie/boxing_star_apk_ios.pdf
    • https://cdn.sqhk.co/govulasem/jh9idif/7653127657.pdf
    • https://cdn.sqhk.co/tarudifirew/MXih3ia/kuxafux.pdf
    • https://cdn-cms.f-static.net/uploads/4418191/normal_601e90c5a74b8.pdf
    • https://zunivagakasati.weebly.com/uploads/1/3/4/3/134340202/29210aa77.pdf
    • https://cdn.sqhk.co/nejajevafode/ejchdQ9/56995314121.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://nejegidijikoj.epizy.com/patriots_edelman_injury_report.pdf
    • https://s3.amazonaws.com/wifiduxezo/what_is_the_best_way_to_start_trading_stocks.pdf
    • http://nutimuratibuzur.epizy.com/minecraft_tinkers_construct_guide_1._12._2.pdf
    • https://s3.amazonaws.com/womirofop/free_letterhead_template_design.pdf
    • https://s3.amazonaws.com/safenalavojuwu/vasumawufobo.pdf
    • http://kasilabupa.epizy.com/3._bundesliga_spielplan_2020_19.pdf
    • https://s3.amazonaws.com/lerezazo/fefoxosokalemi.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e809.bin
77695052aec51049f653e0130faec3b5c92f813c5ce72a29deff0aa2f214b2a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE809 5728 bytes
font_01_sfnt_off0000fb81.bin
7ce6a2f34fc9482641fee8cb1db4daccf380780f925062385775ace655aa2e9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFB81 10352 bytes

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