Malicious PDF — malware analysis report

Static analysis result for SHA-256 362cbcdf9bccde09…

MALICIOUS

PDF

69.3 KB Created: 2021-03-11 02:42:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 59f25b509e9d36c1bca09fbf04583bf7 SHA-1: d8ad08993a67cab4ddc391d861c57855d150084e SHA-256: 362cbcdf9bccde090808346cafb7a182830191a337df7516b4f44f84740c6ce2
184 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, many pointing to disposable hosting services, indicating a link farm or SEO manipulation tactic. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to lure users to malicious content or phishing sites. No scripts were extracted, but the numerous embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9662

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.
  • 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
  • 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://midufefew.ru/award?keyword=fake+medical+certificate+pdf+australia PDF link annotation
    • https://kukibujez.weebly.com/uploads/1/3/1/6/131637652/1009203.pdfIn PDF document text
    • https://gifenatewa.weebly.com/uploads/1/3/4/4/134480542/mozabi_devoguxugu_ruxipalokelo.pdfIn PDF document text
    • http://watulexop.iblogger.org/tekemamit.pdfIn PDF document text
    • https://resodarapasak.weebly.com/uploads/1/3/4/6/134659305/zuwadinejurorevilexu.pdfIn PDF document text
    • https://cdn.sqhk.co/mivufarowiwi/hsjgxij/xifafovemuligilawinozab.pdfIn PDF document text
    • https://cdn.sqhk.co/tesosunimew/3gehdge/zokuxoremopanagelonawajif.pdfIn PDF document text
    • https://cdn.sqhk.co/matezafun/Tppgeji/lijemiten.pdfIn PDF document text
    • https://cdn.sqhk.co/pajubopolak/gguOwgi/wordscapes_all_levels_cheat.pdfIn PDF document text
    • http://fodadasome.iblogger.org/pictograph_and_bar_graph_worksheets.pdfIn PDF document text
    • https://cdn.sqhk.co/xorilulog/hdYmhcu/realistic_cake_artist_near_me.pdfIn PDF document text
    • http://sokuzise.iblogger.org/dikul.pdfIn PDF document text
    • https://cdn.sqhk.co/riroxale/hXnecid/gesuwunerinabizuxefozu.pdfIn PDF document text
    • https://cdn.sqhk.co/riwifesineji/uZje1if/college_student_plan_apple_music.pdfIn PDF document text
    • https://cdn.sqhk.co/torazanopuni/ejiiaif/add_widgets_to_lock_screen_iphone_ios_14.pdfIn PDF document text
    • https://dagakaxogofawi.weebly.com/uploads/1/3/4/6/134699425/nivitezofemakud_samino_parowekiva_linuxipegulitex.pdfIn PDF document text
    • https://jitebemaduk.weebly.com/uploads/1/3/4/6/134692965/9dd5a0a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nataxos.epizy.com/jquery_ajax_tutorial.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7749ece7-4a95-4bf7-9c79-8c8eb75ae120/the_scarlet_pimpernel_song_lyrics.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32ffb1b0-9739-46d5-b37c-fd07e8e0f9c9/86912732533.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ecaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECAA 5320 bytes
SHA-256: 26093d317e00dccba1f6adb9911b8064fd8ee2fda1f0f73b2526ec1985219a44

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