Malicious PDF — malware analysis report

Static analysis result for SHA-256 c14e9450615fd756…

MALICIOUS

PDF

74.6 KB Created: 2021-03-23 20:45:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 34dcb9910455b4fbc83ef8363790c203 SHA-1: a7edbf344bf4501a1ea64012dc0f5a2fa8fab37a SHA-256: c14e9450615fd7563cf495a8236ec032523bc124a64abb87bfba7aa12a126e93
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL `https://jumiwimov.ru/123?utm_term=cisco+ise+ordering+guide+2` suggests a phishing or credential harvesting attempt, disguised as a Cisco ordering guide. No scripts were extracted, but the PDF structure itself contains the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jumiwimov.ru/123?utm_term=cisco+ise+ordering+guide+2
    • https://cdn.sqhk.co/xewafazuk/hJZgju5/25462837402.pdf
    • https://cdn.sqhk.co/zofagopipowi/cjaA3r6/33569757428.pdf
    • https://fuzewejobedogu.weebly.com/uploads/1/3/1/4/131482867/aa949038ea3.pdf
    • https://cdn.sqhk.co/ratufewebu/fMkqngc/woodbridge_crossing_14501_empanada_dr._houston_tx_77083.pdf
    • https://cdn.sqhk.co/fuvebopeweb/GbiiShb/juwuvonadimosulepizedow.pdf
    • https://static.s123-cdn-static.com/uploads/4458125/normal_5ff458fa85c85.pdf
    • https://cdn-cms.f-static.net/uploads/4490133/normal_6037e54e89556.pdf
    • https://cdn.sqhk.co/vapitinab/jheJhjv/xapekemuf.pdf
    • https://xugowapowafav.weebly.com/uploads/1/3/0/7/130775127/d972072.pdf
    • https://cdn-cms.f-static.net/uploads/4447085/normal_604049a8539d5.pdf
    • https://static.s123-cdn-static.com/uploads/4427529/normal_60058610b14a7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://5ce19dfa-329f-495d-88d1-e1e7834d9072.filesusr.com/ugd/d902bb_b09a637d88164161a87b221d92b7daa2.pdf?index=true
    • https://s3.amazonaws.com/vovuzize/babuwajejevajoga.pdf
    • https://46a1ac71-481d-4a85-b709-d40f3a189542.filesusr.com/ugd/143c98_a279f2d1f5a34415a43a17ef1bf4a3df.pdf?index=true
    • https://d17f4099-ecc1-42b1-9c73-51521793457c.filesusr.com/ugd/4a2613_4155266a2db54f4398ca9b8ae8d504d2.pdf?index=true
    • https://s3.amazonaws.com/tufitijinexu/the_message_anthony_quinn_free.pdf
    • https://7915398d-c9c2-4241-abdb-40cf742e4b8d.filesusr.com/ugd/d4df0f_616cc3cdd8e7463888c9eeb925d070ab.pdf?index=true
    • https://e39bfc17-a898-4016-ac91-fc9303c112df.filesusr.com/ugd/b5068a_ebf1471041d249a79fd81e5698b345d9.pdf?index=true
    • https://354df738-7a8c-4643-bdcd-aa58f7c4bd0c.filesusr.com/ugd/69cf62_1ff7cc15022f4d1caa1d93dfd0bd89ee.pdf?index=true
    • https://s3.amazonaws.com/dafumuxitupav/power_xl_air_fryer_cooking_manual.pdf
    • https://0f8fedcd-12c0-4678-86f8-e2bff7269121.filesusr.com/ugd/70e7d4_8bae3b1bccb349f9babfac153affadc3.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_off0000e767.bin
49ccba136479e1c03c01561f98b39210c053761b4755853cebca8e9a843509dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE767 4900 bytes
font_01_sfnt_off0000f825.bin
a38ae09ad97d0ba35d7e761d3825c561a1f90fe4eceb6e9251aa9e6deaad471c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF825 10880 bytes

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