Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeda7cebdd6ee15a…

MALICIOUS

PDF

77.3 KB Created: 2021-02-14 22:23:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 63a79c3721f38bd7daaa8a6992846125 SHA-1: 0083979355c58cd481a917c2b65f352caa6df67a SHA-256: eeda7cebdd6ee15a1cfa449e987587e448a08755d5b525fdd62b60f18f7e44e7
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and ML classifiers, indicating a phishing or trojan distribution attempt. The file contains a large number of external links, suggesting it is part of a link farm designed to distribute malicious content. The embedded URLs, such as https://seumenha.ru/123?utm_term=wep+lx+800+dx+printer+price, are likely used to redirect users to further malicious sites or download payloads.

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://seumenha.ru/123?utm_term=wep+lx+800+dx+printer+price PDF link annotation
    • https://cdn.sqhk.co/motulobugaji/ggI5UCh/36959896691.pdfIn PDF document text
    • https://cdn.sqhk.co/fubafonu/i3ggGgd/drive_and_park_free_online.pdfIn PDF document text
    • https://cdn.sqhk.co/sivefuxonix/Wp3ifjj/flipper_movie_theater_in_hollywood_fl.pdfIn PDF document text
    • https://kebetesoma.weebly.com/uploads/1/3/2/6/132695457/birovef.pdfIn PDF document text
    • https://cdn.sqhk.co/zaviresodew/uKiil36/tropico_6_ps4_review.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409628/normal_5fff6360a6a42.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403273/normal_602073fa83695.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417817/normal_5fe7971705cff.pdfIn PDF document text
    • https://mutakisutuw.weebly.com/uploads/1/3/4/7/134768563/mumakixuv.pdfIn PDF document text
    • https://pewuwokajop.weebly.com/uploads/1/3/0/7/130775265/xefonogerive.pdfIn PDF document text
    • https://cdn.sqhk.co/zagakobafot/YUyhhg3/gifajulitoluzob.pdfIn PDF document text
    • https://cdn.sqhk.co/tuxonewebuke/fJghPxt/36166703734.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382782/normal_601234dd0ea53.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371013/normal_600d571f43ada.pdfIn PDF document text
    • https://cdn.sqhk.co/bitomasijelo/gd6L0gj/cartoon_cat_plush_toys.pdfIn PDF document text
    • https://cdn.sqhk.co/tijatabov/VhcA2wB/jezejodatugesinowomadiron.pdfIn PDF document text
    • https://cdn.sqhk.co/puxedimuwo/jibcjbE/nejubawapodomul.pdfIn PDF document text
    • https://bexokibuki.weebly.com/uploads/1/3/2/3/132302940/6669402.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ee37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE37 5096 bytes
SHA-256: 53e16c5b348e93348e1ba38b24b63afac231617c1c46eea77fb4e13097bdf628
font_01_sfnt_off0000ffb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFB0 11536 bytes
SHA-256: fc313521abd9d096a4d9092a7a099f29dc0e6d6fc6baede395b972d85a5eca27

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