Malicious PDF — malware analysis report

Static analysis result for SHA-256 47077d80aeb94211…

MALICIOUS

PDF

81.1 KB Created: 2021-03-21 01:44:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 47de087b99e25e6ac01f7e217e2d8b55 SHA-1: 95296279ca7e342fabbb61a4a407725553dddb21 SHA-256: 47077d80aeb94211d95920ed6027c89248461d3d8c01933a7de20d3e1d600945
194 Risk Score

Malware Insights

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

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 and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://jacksth.ru/wix?keyword=dbz+shin+budokai+battle+of+gods+download PDF link annotation
    • https://sunajojafexa.weebly.com/uploads/1/3/1/8/131856627/5382872.pdfIn PDF document text
    • https://sobuxiba.weebly.com/uploads/1/3/4/8/134867950/4785439.pdfIn PDF document text
    • https://kivijakesav.weebly.com/uploads/1/3/2/7/132740669/3511661.pdfIn PDF document text
    • https://binimejo.weebly.com/uploads/1/3/4/6/134665204/xuzowijuvebiv_fanesisev.pdfIn PDF document text
    • https://nametipij.weebly.com/uploads/1/3/1/1/131164318/6413828.pdfIn PDF document text
    • https://forerijekakifur.weebly.com/uploads/1/3/5/4/135401119/9e68c1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465402/normal_603d47723db73.pdfIn PDF document text
    • https://cdn.sqhk.co/votojuxosaf/d1sJZha/short_inspirational_life_mottos.pdfIn PDF document text
    • https://cdn.sqhk.co/mifodirula/dVgelhb/dj_name_mixer_software_pc_download.pdfIn PDF document text
    • https://gupebuxoguwev.weebly.com/uploads/1/3/4/3/134381402/pavulexukuveg-vufuzoxi-mutab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488336/normal_603a463d6faf9.pdfIn PDF document text
    • http://zefikono.22web.org/allen_bradley_rslogix_5000_training_manual.pdfIn PDF document text
    • https://xezelugewopisaw.weebly.com/uploads/1/3/5/3/135311865/vewezevut.pdfIn PDF document text
    • https://cdn.sqhk.co/zufutetuwume/hhhfDmH/my_jaguar_land_rover_incontrol.pdfIn PDF document text
    • https://cdn.sqhk.co/nofevemumidu/bGH1ibc/49667871791.pdfIn PDF document text
    • https://lapamijivosesez.weebly.com/uploads/1/3/4/5/134507295/5ece189ead0.pdfIn PDF document text
    • https://lemevepavakupe.weebly.com/uploads/1/3/4/7/134701524/0f6af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446026/normal_5fd8d8bdef97e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://merigodivibamot.rf.gd/15305014578.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6e4e711-2dc0-4a21-947e-a23cdd1b4b29/37004680394.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf1d5be9-66ff-44ae-a7c9-b78f8b3fdacf/hunter_fan_remote_not_working_for_light.pdfIn PDF document text
    • http://lolamidubafa.rf.gd/finefarem.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_off0000fe71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE71 5416 bytes
SHA-256: 5df4beb35fa1805d1e6f3528a6e0d552151189035c7f9b2d403eabf704f5f9c5
font_01_sfnt_off000110fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110FD 11048 bytes
SHA-256: bf14e0b88a468dcc9e18bdfd9de14ac5b43d2afb239e4d152cd1fad2b1b5c271