Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1d9334e950f419e…

MALICIOUS

PDF

76.1 KB Created: 2021-03-14 10:31:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1fdcbe974a592a6a40567bf2a203e1e3 SHA-1: d701b83be93ecd1b9fbd6ce4259ec524907699e0 SHA-256: d1d9334e950f419e72cafe49d927e557e83d43921cca443a26ed8f29321a6368
96 Risk Score

Malware Insights

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

The file is a PDF containing an embedded URL that points to a suspicious domain, identified by heuristics as a potential phishing or malware distribution vector. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's 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://baarspo.ru/wix?keyword=chew+you+havisfaction
    • http://bitiwiz.medianewsonline.com/cantonment_act_1924_pakistan.pdf
    • http://ketaton.mywebcommunity.org/dazet.pdf
    • http://monubagujizud.mywebcommunity.org/singapore_payroll_process.pdf
    • http://xevusezes.medianewsonline.com/50811318262.pdf
    • https://sakojokotinij.weebly.com/uploads/1/3/1/3/131379540/25bd36ea90cc.pdf
    • http://vuroxinizona.scienceontheweb.net/true_freezer_t-49f_used.pdf
    • https://jivenikovo.weebly.com/uploads/1/3/4/3/134308789/dadaf_virokuv_nelag_fidalaxa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://lejiletuvasipib.onlinewebshop.net/how_to_put_together_a_farberware_blender.pdf
    • http://wotixoweg.rf.gd/seahawks_injury_report_week_4.pdf
    • http://gonoluripep.rf.gd/jeffrey_pfeffer_power.pdf
    • https://87b84290-c0b3-4c73-97a1-3d59c64c3f69.filesusr.com/ugd/c638b7_5bdb809408d74acdac5a18c5579ca24b.pdf?index=true
    • http://diwavubodinaroj.myartsonline.com/xepazan.pdf
    • https://6739ca04-605d-4ff4-b4c9-4e5bd75a7819.filesusr.com/ugd/031dda_7d6bb0bc8db34703ab6686806e396b2b.pdf?index=true
    • http://wulibazosuxib.onlinewebshop.net/does_chick_fil_a_hire_at_14_in_new_york.pdf
    • https://uploads.strikinglycdn.com/files/c4888882-4b92-4ab4-b0b6-821af58d87ac/zisuzeloxobepevovefadexo.pdf
    • http://futakanawus.onlinewebshop.net/bepedowenelulavagorif.pdf
    • https://acfcda0b-1795-4b40-aedc-9a0bc13047ce.filesusr.com/ugd/89c6ad_f72021495bc444f8a391b26bdf985782.pdf?index=true
    • https://uploads.strikinglycdn.com/files/824a2ff3-c1bd-4db6-8d90-983c29406cac/zagefarenokejokadazade.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_off0000eddf.bin
b79e5ef2a007ff6afd53fe2c4e305316f810134e03f3179f3b767be7973b7aa2
pdf-font-stream PDF embedded font (sfnt) at offset 0xEDDF 5000 bytes
font_01_sfnt_off0000feff.bin
c9fdc97216a896915347a13f931655c7386e549c8d47a704c221249dc167953c
pdf-font-stream PDF embedded font (sfnt) at offset 0xFEFF 10732 bytes