Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e2d4069dae64689…

MALICIOUS

PDF

85.3 KB Created: 2021-03-14 00:07:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 82fef519e6e3b7ee5377cc9755ca9836 SHA-1: 19c08c0bbfea60bffcad529e3e9bd2f17fe4d5a5 SHA-256: 5e2d4069dae64689ec26759327c732d79fd2336bdef3d8b2e337584dc00a08b8
196 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It contains numerous external links, suggesting a link farm or redirection mechanism. The 'SE_PASSWORD_ARCHIVE_LURE' heuristic indicates the document likely instructs the user to download an archive and provides a password, a common tactic to bypass security filters. While no scripts were explicitly extracted, the PDF structure and embedded URIs point towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://ponafet.ru/strik?utm_term=python+set+add+all
    • http://wersita.space/import_blackberry_password_keeper_androidrarts.pdf
    • https://cdn.sqhk.co/ruwonumatag/jasYIhe/xojezejorivunabalapab.pdf
    • http://geekcods.com/bride_and_groom_poses0dk14.pdf
    • https://static.s123-cdn-static.com/uploads/4454546/normal_60008c095b104.pdf
    • https://cdn-cms.f-static.net/uploads/4450439/normal_60356cbb8c22b.pdf
    • http://salet.store/nadefanotimuteniligepufugx0pvf.pdf
    • https://cdn.sqhk.co/mekibekowufe/ghXjagR/physics_balls_on_a_string.pdf
    • https://cdn.sqhk.co/zesozote/fAigRl4/brothers_in_arms_3_hacked_apk_download.pdf
    • https://static.s123-cdn-static.com/uploads/4416810/normal_5ff0697b61470.pdf
    • https://cdn.sqhk.co/fodexuxefeba/jGjahb8/vedepiza.pdf
    • https://cdn.sqhk.co/gisatajofo/zjdjfgf/wetodorerekisixolovo.pdf
    • http://detonic-official.website/533585292596djnr.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://fc06435f-e709-4c80-b59d-96fa470c1a13.filesusr.com/ugd/bdc04d_c3b0ba382cea44c3a2783947d8a110a5.pdf?index=true
    • https://63c5840e-267c-49ed-94d3-fc9f9d8b9c0b.filesusr.com/ugd/8c5bc8_ce3a8ca1dd334176ae758524c47180fc.pdf?index=true
    • https://5053e88e-9e18-4719-890c-32a1cca0295d.filesusr.com/ugd/411503_59e0f9de5fdc4668bd5f5c325b37d587.pdf?index=true
    • https://8f6f9f04-f977-4239-955d-f6aecf2dd879.filesusr.com/ugd/81cd61_562180bf752e45f489d47b174bba2bf2.pdf?index=true
    • https://5b5cf7c4-d983-4e27-bd54-44d52fc9074e.filesusr.com/ugd/2f9450_b868e743090f4362b20aba97088da807.pdf?index=true
    • https://uploads.strikinglycdn.com/files/830777b4-eb74-46c9-9754-ef43f300337e/lenenukevafimibopimiko.pdf
    • https://e2a3f85e-3ce8-4c76-99a2-e63219cad5ad.filesusr.com/ugd/473d25_f231f592e05949928ef521a10bf9c371.pdf?index=true
    • https://uploads.strikinglycdn.com/files/206e3f0e-faa3-4d1f-abd5-3d8395d61335/tajokomusefemawozebuvafom.pdf
    • https://104e0e48-a4c2-4a03-8647-06ef64d4e6ac.filesusr.com/ugd/e2c6c1_2bc5a2206226452cb4c1cc83159562c5.pdf?index=true
    • https://uploads.strikinglycdn.com/files/a11e45f7-de67-48fc-b2a9-7e3cfddce2b5/honeywell_thermostat_th8000_unlock_screen.pdf
    • https://uploads.strikinglycdn.com/files/df32dcd2-f90b-42ef-8ee4-61f4e042c8d5/unravel_personality_meaning_in_hindi.pdf
    • https://uploads.strikinglycdn.com/files/02962c8b-a815-4bd4-b5be-bb9d8e75d017/32146781191.pdf
    • https://9fc80a0e-b25b-4135-afeb-9811a1ea6bf8.filesusr.com/ugd/91e123_b2fbad859fe04541adcd2627023e0449.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_off00010fbb.bin
059dd5b9cd69592fc5e66645178358cc3781e78413c03ad556cbd29feafa1b55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10FBB 4920 bytes
font_01_sfnt_off0001207c.bin
6e6865172bbd382adc51b4dfc05b29047c152b2bebfff365a443e3d11daebde2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1207C 11528 bytes

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