Malicious PDF — malware analysis report

Static analysis result for SHA-256 037cf5bbbb3157d3…

MALICIOUS

PDF

76.5 KB Created: 2021-05-17 11:48:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 7b95844de3c2ce142d51e052a70c97d2 SHA-1: e5abdc733c9f42f0c6830cd977eb624d42de9a70 SHA-256: 037cf5bbbb3157d3ad3224db6735d8c1e8de6706fa28adafded3a72c77bf6bd0
126 Risk Score

Malware Insights

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

The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains embedded URLs, with one pointing to a suspicious domain that is likely used for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to a 'power pressure cooker xl manual'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/strik?utm_term=power+pressure+cooker+xl+manual+model+ppc770 PDF link annotation
    • http://jijimaxugixu.22web.org/juzalupusujifubiwirokuwek.pdfIn PDF document text
    • http://rawenspant.online/can_a_data_scientist_become_a_machine_learning_engineer3evuz.pdfIn PDF document text
    • https://cdn.sqhk.co/jisujesox/iFpOjc6/hide_n_seek_winnipeg_waiver.pdfIn PDF document text
    • https://cdn.sqhk.co/xemugugafot/ZgctBXh/63490020418.pdfIn PDF document text
    • https://cdn.sqhk.co/vobevufubito/NDKjehg/88641107242.pdfIn PDF document text
    • http://shtancircul.site/japji_sahib_in_english_punjabiwouxc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://f3dcd8e3-6656-4b47-a81e-a993d3c4f2a1.filesusr.com/ugd/aa9ef2_5a4d5806c73c4d9d8e2928c5ef8e724e.pdf?index=trueIn PDF document text
    • https://fc060a1e-8c1d-4b7d-bafd-75f79d4c6355.filesusr.com/ugd/c0a468_798a07584d3a40709ca87d672e61e22a.pdf?index=trueIn PDF document text
    • http://wuwedutukuw.epizy.com/kaspersky_antivirus_licence_key_free.pdfIn PDF document text
    • https://abe99a74-823b-4c5d-85d6-f8d8de52422f.filesusr.com/ugd/73cc63_51d4e89456ef402aa181009a353fb1ad.pdf?index=trueIn PDF document text
    • http://dijinisefiregot.rf.gd/respiracin_aerobica_y_anaerobica.pdfIn PDF document text
    • http://weralawubuzeg.epizy.com/39029024138.pdfIn PDF document text
    • http://livagutavox.epizy.com/kamirelegigulusixamutamo.pdfIn PDF document text
    • https://s3.amazonaws.com/towutoginadivu/85233938562.pdfIn PDF document text
    • http://lupogomemogofaf.rf.gd/physical_science_grade_11_november_2020_memo.pdfIn PDF document text
    • https://s3.amazonaws.com/rimejiguvif/traktor_s4_mk2_dimensions.pdfIn PDF document text
    • https://s3.amazonaws.com/pazatuv/innocent_witness_korean_movie.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dfea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFEA 5420 bytes
SHA-256: 69c6a4088d314a64b21d61392ce9070c10746f1a5e648e2306c40f71440a19de
font_01_sfnt_off0000f251.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF251 10652 bytes
SHA-256: 691baa33d6c612ae55fe5eb128bc419870dc9f5f39aacaca23fa80fd29d379f0
font_02_sfnt_off0001169e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1169E 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

Open this report in the interactive analyzer, or submit your own file for analysis.