Malicious PDF — malware analysis report

Static analysis result for SHA-256 e732e17804b14183…

MALICIOUS

PDF

94.4 KB Created: 2021-03-11 13:42:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 876c3b934ada8677b2fdb5319e15e436 SHA-1: dcfbeb336d50dfddcd0047c9ac7fe591c9caa91d SHA-256: e732e17804b14183756105b71d45e118a6d78d2548132d48a68a8504128a490c
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The embedded URL points to a domain associated with phishing lures, disguised as free blogger templates. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://golowaki.ru/123?utm_term=bootstrap+blogger+templates+free
    • https://cdn.sqhk.co/pabelewexo/iI3ghhb/the_archers_bbc.pdf
    • https://cdn.sqhk.co/fefavezevir/TiiidI4/basic_piano_lessons_for_beginners_youtube.pdf
    • https://cdn-cms.f-static.net/uploads/4374009/normal_6023d50b27b87.pdf
    • https://cdn.sqhk.co/famuxina/rhh7j7x/zed_build_guide_aram.pdf
    • https://cdn.sqhk.co/fomolunuvufa/iahftgc/beat_saber_mod_installer_1._6._2.pdf
    • https://cdn-cms.f-static.net/uploads/4486982/normal_60184d8fd249d.pdf
    • https://static.s123-cdn-static.com/uploads/4427080/normal_6007b1996468c.pdf
    • https://cdn-cms.f-static.net/uploads/4404980/normal_5fe7ff85031c1.pdf
    • https://cdn-cms.f-static.net/uploads/4387061/normal_600dfc6ba48b4.pdf
    • https://cdn-cms.f-static.net/uploads/4459177/normal_600ffd0ea4a65.pdf
    • https://cdn.sqhk.co/dafiwexoki/jajjria/tony_from_survivor_wife_and_child.pdf
    • http://nitiwopororotef.mypressonline.com/business_recorder_newspaper.pdf
    • https://static.s123-cdn-static.com/uploads/4370057/normal_5fc93afc76d30.pdf
    • https://cdn-cms.f-static.net/uploads/4426972/normal_60334ec6c9a49.pdf
    • http://xebupado.mypressonline.com/fozipifazivirugum.pdf
    • https://cdn.sqhk.co/visesefider/gSjhhep/lucky_one_mall_karachi_jobs_2020.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/xukonakefules/solving_quadratic_equations_word_problems.pdf
    • https://s3.amazonaws.com/werowibovezoje/23788805923.pdf
    • https://s3.amazonaws.com/rodakarugupoko/nefamixavowaraxaporesomis.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_off000133d3.bin
16e3cc0f0691c4f830a6222d2ee3aa64d04f57a3334233d814e8acf7a9a186df
pdf-font-stream PDF embedded font (sfnt) at offset 0x133D3 5408 bytes
font_01_sfnt_off00014624.bin
444d4e6cbab785ce4ade912ff5355bae7fe041edfca06f182e4b1fccb7d19dad
pdf-font-stream PDF embedded font (sfnt) at offset 0x14624 10932 bytes