Malicious PDF — malware analysis report

Static analysis result for SHA-256 d46a7b480f643baa…

MALICIOUS

PDF

73.9 KB Created: 2021-03-19 11:59:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 48295d0756ea18bda9ee8d3c215442ab SHA-1: f69621b28028806b4a64568a9203f7fbd041d874 SHA-256: d46a7b480f643baaac48677b356a799d36096981b628dc56b439e9eccd2862d4
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

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 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://bologen.ru/wix?keyword=manual+snow+cone+maker PDF link annotation
    • https://cdn.sqhk.co/javeduner/4ggxgjW/poshmark_buy_sell_fashion.pdfIn PDF document text
    • http://kumolek.22web.org/favowojuladaxatuda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478923/normal_60497e132dd6c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368230/normal_5fcc60f0c1d70.pdfIn PDF document text
    • http://bimupodum.iblogger.org/cfms_bihar.pdfIn PDF document text
    • http://wulixiv.sportsontheweb.net/tutonuji.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380674/normal_60207a6604be1.pdfIn PDF document text
    • http://gadetebes.sportsontheweb.net/can_t_help_falling_in_love_kalimba.pdfIn PDF document text
    • https://cdn.sqhk.co/matikefateri/jJSWZie/cosmic_year_definition_astronomy.pdfIn PDF document text
    • https://cdn.sqhk.co/libavesonon/fX8pgj2/zuxamo.pdfIn PDF document text
    • http://janurikemodowu.iblogger.org/10th_result_2018_application_form.pdfIn PDF document text
    • https://cdn.sqhk.co/rapawaferew/ghhihfx/sagogaletimugavajivod.pdfIn PDF document text
    • https://cdn.sqhk.co/siboxowimu/hdfEjjc/cookie_monster_bricks.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7dfe8cc8-a79e-4f74-beb3-3e7a397d3fd8/59896548592.pdfIn PDF document text
    • http://luregaw.onlinewebshop.net/xonofit.pdfIn PDF document text
    • https://s3.amazonaws.com/wixatax/98171452715.pdfIn PDF document text
    • http://pumuroxojab.rf.gd/best_hunting_trail_cameras_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2459f101-ff2e-40eb-bc56-78685a0ac6f9/borg_warner_velvet_drive_gearbox_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/60093689310.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35810ecb-4b2d-4eb3-8639-f1c330a5863f/79378710892.pdfIn PDF document text
    • https://s3.amazonaws.com/fejenijovekozu/pokemon_breeding_ivs_guide.pdfIn PDF document text
    • http://girifej.epizy.com/because_he_lives_piano_chords.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64e6c155-49f6-4372-bfac-8723d7d6b3e3/davaferixugijagigip.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_off0000e5a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A4 5108 bytes
SHA-256: 718c880c8aed259268f2fcbf07f396d9d9a8572d865abe0b8aad8dca163feb52
font_01_sfnt_off0000f70e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF70E 10376 bytes
SHA-256: d9e96a84f134793da0d1622d3049c0b36990697c1fdb8ffe4aa9bfe6cd7cc00c

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