Malicious PDF — malware analysis report

Static analysis result for SHA-256 5be448058fbd73cb…

MALICIOUS

PDF

61.9 KB Created: 2020-12-15 19:54:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 5aa8484af9ccc5d3ac190b806fefb51f SHA-1: 7827d5655616b84f0bf7fdd563efefaa25182fec SHA-256: 5be448058fbd73cbffe064820c9555cdef7010ace52fd3b8070c6546368a666a
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 link farm. One of the primary URLs, 'https://trafficel.ru/123?utm_term=arnis+store+near+me', is directly embedded and flagged as suspicious. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or distributing further malware through these links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafficel.ru/123?utm_term=arnis+store+near+me PDF link annotation
    • https://tanaxigurav.weebly.com/uploads/1/3/4/2/134266775/4c2cb17da89382.pdfIn PDF document text
    • https://fixubosadad.weebly.com/uploads/1/3/4/6/134658154/7587684.pdfIn PDF document text
    • https://pigukoziluluz.weebly.com/uploads/1/3/4/8/134896600/jonekobukafiwiwa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369138/normal_5fce34e3d515f.pdfIn PDF document text
    • https://zivawopoxiba.weebly.com/uploads/1/3/4/3/134355714/3523085.pdfIn PDF document text
    • https://xikematevi.weebly.com/uploads/1/3/4/3/134392378/6167298.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391649/normal_5fa8bb7155cb8.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc514f09698b02c7f3b9635/t/5fc6118cf3de5e49b5351993/1606816141073/bamugo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc18b2c68612547ed62b026/t/5fd232d0ae71ea6dd32aa207/1607611088943/football_officials_gear_near_me.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc648058ef7301f8b35a0c6/t/5fcc72cc6f0099009e5bda95/1607234253173/president_speech_independence_day_2020.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbffb332bbd740658015355/t/5fc11fc44f9837572007b3df/1606492101688/27006519353.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc56e29bdb33045eee0a17c/t/5fc69567e18c5c478ee14b8d/1606849895546/all_songs_in_rocketman_in_order.pdfIn PDF document text
    • https://s3.amazonaws.com/wiremeresegikon/45709684338.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5b955be9b6939512bdb09/t/5fcf5d4acd9a2056ff751b2e/1607425356819/72096120165.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/california_bearing_ratio_cbr_test.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_off0000b7c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7C6 4788 bytes
SHA-256: 32a479bdee80e96d3326741b89a0f61021f566c676e20dac3924a4453c090f8b
font_01_sfnt_off0000c7f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7F3 10340 bytes
SHA-256: ee5dc62cd0ee9baf339b220fe7928ac615cb1b9a8d3a94f4b023666d2617aac6

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