Malicious PDF — malware analysis report

Static analysis result for SHA-256 b85529d1ff60ebc0…

MALICIOUS

PDF

83.8 KB Created: 2021-03-18 23:57:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0b9549b066ac2c86b305e4ce6a574c42 SHA-1: 746934b1f9199a078c0158acd77302ac4a350501 SHA-256: b85529d1ff60ebc08d1beaa7a5fca061d8e589416265afcee0308df3e1a73fd2
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is a strong indicator of malicious intent. The ML classifier and ClamAV detection further support this assessment. Although no scripts were explicitly extracted, the presence of external URIs suggests the document is designed to redirect the user to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ponafet.ru/strik?utm_term=hansel+and+gretel+story+to+read
    • https://kemolarutu.weebly.com/uploads/1/3/4/6/134685450/riwuxomobupov_tigarusiju.pdf
    • http://gawolesimavuvad.22web.org/2020_publication_946.pdf
    • http://pek-24.cc/potter_and_perry_fundamentals_of_nursing_9th_edition_study_guideceas9.pdf
    • https://vuvitujenus.weebly.com/uploads/1/3/4/3/134305132/bogafotosa.pdf
    • https://cdn.sqhk.co/mevazasid/ehbhfhe/ivanka_trump_instagram.pdf
    • http://myyshooop224.site/asmaul_husna_adalah_nama_nama_allah_swt_yang_terbaik_atau_terindahk4zmh.pdf
    • https://cdn.sqhk.co/fuvebopeweb/yDqjclt/52208284661.pdf
    • https://cdn.sqhk.co/miraroki/4Tibie9/mavaribemo.pdf
    • http://card2card.live/senuka2t6an.pdf
    • http://icub.tech/969758680015kcan.pdf
    • https://cdn.sqhk.co/pekotegafod/ieDjaje/42028322725.pdf
    • https://tewetakejuduz.weebly.com/uploads/1/3/2/7/132740850/fozefov.pdf
    • http://helpcenter.business/5_seconds_of_summer_members_net_worth2duu2.pdf
    • https://suxozunepewax.weebly.com/uploads/1/3/2/8/132814427/c41ff8446eafdd.pdf
    • http://yarrebitteh.online/1._mouawad_1001_nights_diamond_purseb0xkj.pdf
    • https://mofegagopabelem.weebly.com/uploads/1/3/1/4/131438130/taraxajop-rojix-kevinera.pdf
    • https://fifekususelamib.weebly.com/uploads/1/3/5/3/135349053/wujeneduse.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://bevupun.epizy.com/31537270970.pdf
    • http://jisufosesuku.epizy.com/learn_selenium_webdriver_with_javascript.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010d2f.bin
6d6e451e17db2ece20d40e9a30362b63317ad2e1f9ebd211ddf7a5db171fe1e8
pdf-font-stream PDF embedded font (sfnt) at offset 0x10D2F 5056 bytes
font_01_sfnt_off00011e73.bin
29ea1e261fd4038a57b8d5e2d453bcde4958fca8d8e16a5631a2f42fceb1cd5c
pdf-font-stream PDF embedded font (sfnt) at offset 0x11E73 9968 bytes