Malicious PDF — malware analysis report

Static analysis result for SHA-256 abcdfed46e121260…

MALICIOUS

PDF

70.3 KB Created: 2021-03-22 20:39:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96ea81ab0d0f87e7bf0b5ac4417558bc SHA-1: 83c0652559cdb22d916d5e8d0cd698489e025093 SHA-256: abcdfed46e12126087cb4d5af3b9911c36da19f67c2983a8ddc8f24e719344dc
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'kuzutuzo.ru', suggesting a phishing or malware distribution lure. While no scripts were explicitly extracted, the PDF structure and embedded URI strongly suggest it's designed to redirect users to a malicious site, likely for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://kuzutuzo.ru/wix?keyword=fusion+dance+project
    • http://slimitalia.space/mini_football_court_size_in_meterspcwj6.pdf
    • http://yildirimotobursa.com/rijorirugarebamideguwitd5udt.pdf
    • http://filfex.ru/lease_agreement_template_south_africa_word_docmnug5.pdf
    • https://cdn-cms.f-static.net/uploads/4367960/normal_603b0e6da345e.pdf
    • http://ionatr.fun/177869061ptee.pdf
    • https://static.s123-cdn-static.com/uploads/4391308/normal_5ff512327dac8.pdf
    • http://robertferrell.net/lady_macbeth_2016_movie_free_downloadyc9qd.pdf
    • https://static.s123-cdn-static.com/uploads/4410214/normal_5fcf32fb7f3bb.pdf
    • https://cdn-cms.f-static.net/uploads/4413563/normal_5fe78ba118bbf.pdf
    • http://ehaberdevlet.com/netukevosixopinevukoxsv0rs.pdf
    • http://formverifiedbadge.com/what_is_macro_programming_in_cncka6nk.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/kozibowisenatu/sabolow.pdf
    • https://uploads.strikinglycdn.com/files/d44d5939-54f4-408d-a9a0-2b880e77ff2a/kuwupomogukuvufofuxet.pdf
    • https://s3.amazonaws.com/xotomisen/vidmate_ing_karna_hai_kaise_hoga.pdf
    • https://uploads.strikinglycdn.com/files/b19d127b-b789-4d90-965a-102b5f05cf6b/98026404929.pdf
    • https://992bddda-184d-467f-a815-0165b41a2208.filesusr.com/ugd/69695d_dfc11e3292a744aab33591744169f564.pdf?index=true
    • https://s3.amazonaws.com/pusori/legend_of_dragoon_additions_guide.pdf
    • https://uploads.strikinglycdn.com/files/dc190b1e-637a-4b80-9581-e1b5d92d4fb3/84291875995.pdf
    • https://uploads.strikinglycdn.com/files/7b9c374a-a0ca-4750-b8c6-2602dfed7eac/99539890475.pdf
    • https://uploads.strikinglycdn.com/files/63c477be-cb8e-4543-b12f-2e83f30741bb/67649476973.pdf
    • https://c809e8a6-5bdf-489d-8d8c-df4e4638a115.filesusr.com/ugd/45a296_29e57cb4c504477ab853c960a60ec9f4.pdf?index=true
    • https://68f06c25-eb64-4e0a-94e3-a0e33e610147.filesusr.com/ugd/463ace_673123b15d4441879bcd3f1d934a16a3.pdf?index=true
    • 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_off0000d4ec.bin
f67c318413d2cbb776edad6d5b463bb1145d685ce05d9859b6972534c244df58
pdf-font-stream PDF embedded font (sfnt) at offset 0xD4EC 5064 bytes
font_01_sfnt_off0000e63b.bin
c96cc46d1ee28452585034ee1cdac252942d30a49578275d7fb1095d391d1a4a
pdf-font-stream PDF embedded font (sfnt) at offset 0xE63B 11500 bytes