Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f675bd68125af0f…

MALICIOUS

PDF

81.5 KB Created: 2021-02-26 02:32:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: e984f7d39eb4a6a33db9b0f78ca20ae8 SHA-1: 4da5ed8c89547e4bfec2547482541cb12d04057d SHA-256: 7f675bd68125af0f468edbb0bf7cca4f7127632aea508d9bed528798f603b487
156 Risk Score

Malware Insights

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

The PDF contains a significant number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The primary URL, 'https://druttle.ru/award?keyword=are+ge+washers+good', suggests a lure to a potentially malicious or deceptive website. ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious classification. No scripts were extracted, but the structure indicates a phishing or SEO spamming attempt.

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
  • 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.
  • 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://druttle.ru/award?keyword=are+ge+washers+good PDF link annotation
    • http://vizudawu.22web.org/where_do_you_learn_wilderness_survival_skills.pdfIn PDF document text
    • https://fugomunufu.weebly.com/uploads/1/3/4/5/134586131/36ea358885.pdfIn PDF document text
    • https://ranitezal.weebly.com/uploads/1/3/1/4/131438109/lajomedabakimelifa.pdfIn PDF document text
    • https://dulewidojupetor.weebly.com/uploads/1/3/2/6/132695372/78a8026ef797a5f.pdfIn PDF document text
    • http://newipufisatag.scienceontheweb.net/how_to_open_a_sentry_safe_1250_without_the_combination.pdfIn PDF document text
    • https://sogitinavebifi.weebly.com/uploads/1/3/5/4/135400198/2e2cc97bc3cf.pdfIn PDF document text
    • http://desokore.medianewsonline.com/classes_of_antibiotics_and_mode_of_action.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/fipijife/84373872090.pdfIn PDF document text
    • http://sevuxomodo.epizy.com/cra_authorization_form_t1013.pdfIn PDF document text
    • http://zotubune.myartsonline.com/can_i_use_autocad_on_a_chromebook.pdfIn PDF document text
    • http://fiforeru.atwebpages.com/913595954.pdfIn PDF document text
    • https://s3.amazonaws.com/devuxuzejozam/32411948416.pdfIn PDF document text
    • https://s3.amazonaws.com/tobito/transformer_polarity_test_procedure.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/24744046264.pdfIn PDF document text
    • https://s3.amazonaws.com/pazerogasarinu/pulmonary_edema_ppt.pdfIn PDF document text
    • http://jujewejono.epizy.com/98993352456.pdfIn PDF document text
    • http://woxanegerofokox.rf.gd/30979997038.pdfIn PDF document text
    • https://s3.amazonaws.com/zusevamasor/87288587483.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_off0001038c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1038C 5136 bytes
SHA-256: 17dbebfd33c78aecd5b6cf5b12661c25d19c306f000c21e53a703be72d2aef8d
font_01_sfnt_off0001150e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1150E 10476 bytes
SHA-256: df1b7da03cdbec6bf8e34f03f1599cb7aa78ac4ba04fc5bfad0c562ba7ac83f0

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