Malicious PDF — malware analysis report

Static analysis result for SHA-256 af622fcc26a878d9…

MALICIOUS

PDF

96.3 KB Created: 2021-05-05 19:46:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 0136d1027399280ec88babde38c0828e SHA-1: 0f62c73ac2c8feba856e707337f1df7accdd5bb6 SHA-256: af622fcc26a878d9be16728ded70fa4f688f057ec6e8d46e252125c5fcd15280
162 Risk Score

Malware Insights

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

The PDF contains a link that redirects to malicious infrastructure, as indicated by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic and the ClamAV detection. The document body, though partially corrupted, suggests a lure related to a 'Tony Robbins goal setting workbook pdf' and includes a call-to-action phrase, aligning with phishing tactics. The presence of embedded URLs and the ML classifier's high confidence further support the malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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://dafemum.ru/strik?utm_term=tony+robbins+goal+setting+workbook+pdf In PDF document text
    • https://rejowuboxobe.weebly.com/uploads/1/3/2/6/132680789/7c6dc05b1f19a4c.pdfIn PDF document text
    • http://kemikavar.mypressonline.com/vowilolukapegibizepu.pdfIn PDF document text
    • https://lumovomudin.weebly.com/uploads/1/3/4/7/134704265/togimapamaxaxap.pdfIn PDF document text
    • http://lonemap.medianewsonline.com/an_inspector_calls_book_download.pdfIn PDF document text
    • http://vuwiwetidajin.mywebcommunity.org/purpose_driven_life_day_22.pdfIn PDF document text
    • http://lozejebivo.scienceontheweb.net/walmart_black_friday_ad_2020_tvs.pdfIn PDF document text
    • https://junezafebu.weebly.com/uploads/1/3/0/8/130874287/7455645.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/bejikefowu/vetikexukuk.pdfIn PDF document text
    • https://s3.amazonaws.com/banula/sepadiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/247a886b-d7d9-4c50-8974-bea06bcf293a/ximoxegarudowugemagujex.pdfIn PDF document text
    • https://s3.amazonaws.com/wukevirenesu/parts_of_a_newspaper_worksheet.pdfIn PDF document text
    • https://ca7c05ed-d233-4774-9cf9-08ff86aa6c73.filesusr.com/ugd/b42fd6_95fbd656a3884ac7915f204f924b5ef7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zinudipir/apc_back_ups_pro_550_battery_replacement.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/843f6317-eff4-420e-af44-7cb242a8fc22/wowozawusekelakogarufiv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b72a2a02-884d-4a82-95b0-ef48e5e3b5ca/pumavirufiloseroxubexaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c490f0b6-7551-441e-a53c-eb83bf444b69/sogowekerij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1052ff22-5722-4f86-869b-60deabc9555e/how_to_check_codes_on_jeep_wrangler_tj.pdfIn PDF document text
    • https://3a7b682b-4b85-4b21-836a-a34929c8735b.filesusr.com/ugd/0cd3a8_fd58704fb06845b58a5538c7d0aee8cb.pdf?index=trueIn PDF document text
    • https://2e4d99de-9d37-4ce2-abd5-0bbccafdbe51.filesusr.com/ugd/33a2e4_4c38e6484e4c4b45a9530e379e96aa97.pdf?index=trueIn 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_off00012e19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E19 5556 bytes
SHA-256: ff3964ff931eb4ea95b86024f929dd8b4441de51d3ed1b40a42c0bafaa446b1b
font_01_sfnt_off00014122.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14122 16412 bytes
SHA-256: 2c4c33519fe7f8b719f89bb66cfe43cc008278847637c97c97f5fa79805b07b4

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