Malicious PDF — malware analysis report

Static analysis result for SHA-256 62be9066df0b2535…

MALICIOUS

PDF

78.2 KB Created: 2021-03-20 15:29:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 994319d317b2feef2dd045b841465718 SHA-1: 442f9a1037a7e1155b8edb301720c4a82f50e9e6 SHA-256: 62be9066df0b25354e75d9c577db525a352b65187f459de3d820aad80f48c4af
104 Risk Score

Malware Insights

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

The file is a PDF document flagged by ML classifiers and ClamAV as malicious. It contains an embedded URL that appears to be a lure, disguised as a factoring worksheet. The presence of this URL suggests the document's primary purpose is to redirect the user to a malicious site, likely for further exploitation or payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=factoring+mixed+review+worksheet
    • http://nebo-baikala.ru/mebalababurokagi760qf.pdf
    • http://gatorama.site/29223328924z7yjt.pdf
    • https://static.s123-cdn-static.com/uploads/4375908/normal_5fe4d318497b1.pdf
    • http://usacreditreport.info/fuvidajagadituvimoruvux0tlts.pdf
    • http://pedugubugof.mywebcommunity.org/what_is_an_example_of_irony_in_the_ransom_of_red_chief.pdf
    • https://static.s123-cdn-static.com/uploads/4478655/normal_6001a97d0dc38.pdf
    • https://cdn.sqhk.co/givikofuf/giZjfAn/94636256443.pdf
    • https://cdn.sqhk.co/porevugaz/TggjfzO/fiburowatelesiduzafafa.pdf
    • https://cdn.sqhk.co/buwaxaxodi/ggfZifM/salorosetanopolax.pdf
    • https://talasawag.weebly.com/uploads/1/3/4/2/134265385/6a2b0329b054.pdf
    • https://static.s123-cdn-static.com/uploads/4376875/normal_5fed211d71e5f.pdf
    • http://ximoteduzax.22web.org/retigenezim.pdf
    • http://befujukipepejem.mygamesonline.org/bjt_cascode_amplifier.pdf
    • https://luxefelukij.weebly.com/uploads/1/3/0/7/130775337/bed965.pdf
    • https://cdn-cms.f-static.net/uploads/4465924/normal_6044266c1ffc5.pdf
    • https://pujowelitolav.weebly.com/uploads/1/3/1/4/131438356/sesatu.pdf
    • https://jeletizasi.weebly.com/uploads/1/3/4/6/134640559/2641347.pdf
    • http://wugafis.66ghz.com/antares_movie_tamil_dubbed.pdf
    • http://tobufupevujuma.mygamesonline.org/english_grammar_with_tamil_explanation.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://xumozokuzutibuk.epizy.com/blade_1_full_movie_in_telugu.pdf
    • http://baguzakanaso.epizy.com/lofubinuzafeforozujodat.pdf
    • http://pumikowexudat.onlinewebshop.net/adaptability_test_question.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_off0000f00c.bin
0714684c25d8c904f397dc420dd567d09ecf03c52c5ff60cceb70a84a51381e6
pdf-font-stream PDF embedded font (sfnt) at offset 0xF00C 5560 bytes
font_01_sfnt_off000102e4.bin
53cf0a9fecf49a46901f52abb4999feb154c786fe7102b94645cb7f57042f4e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x102E4 11644 bytes