Malicious PDF — malware analysis report

Static analysis result for SHA-256 154746e4284a6fe3…

MALICIOUS

PDF

92.2 KB Created: 2021-03-06 17:42:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 5ec4578e3feb7f39e85dcae27f9be95b SHA-1: 1df173dcb1edea49afcc82b0c0da96c4fce70975 SHA-256: 154746e4284a6fe38e58cfad0aa3ee00c34cda4dd18be10aa3dfd90b010f4f75
186 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many pointing to disposable hosting services, suggesting a link farm designed to distribute malware or phish for credentials. The presence of a URL related to "pokemon go hack mod apk android 1" further indicates a lure for potentially unwanted or malicious software. ClamAV detection as "Pdf.Phishing.Trojan" strongly supports the malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://golowaki.ru/wix?keyword=pokemon+go+hack+mod+apk+android+1 PDF link annotation
    • https://talekadibozevo.weebly.com/uploads/1/3/5/3/135393667/varorowodixur.pdfIn PDF document text
    • http://dizititakozazi.mywebcommunity.org/taotao_125cc_atv_service_manual.pdfIn PDF document text
    • http://wizudaneku.iblogger.org/powerpoint_design_free_templates.pdfIn PDF document text
    • https://cdn.sqhk.co/weteroliwo/ZehcbZm/droid_optimizer_apk_mod.pdfIn PDF document text
    • http://metagopu.22web.org/anlise_swot_artigo.pdfIn PDF document text
    • https://tadizusojad.weebly.com/uploads/1/3/2/7/132712436/56545fbc5ec7.pdfIn PDF document text
    • https://cdn.sqhk.co/losokifape/4BjdCA2/56255959299.pdfIn PDF document text
    • https://zolegezuboz.weebly.com/uploads/1/3/4/4/134462972/xinasedi.pdfIn PDF document text
    • https://cdn.sqhk.co/dojidavos/xMaifjh/tusunokeporafasolawisigup.pdfIn PDF document text
    • https://cdn.sqhk.co/nowavutu/iahiijl/55735310320.pdfIn PDF document text
    • https://pixebekisutajud.weebly.com/uploads/1/3/0/7/130775176/23f6cc3a4.pdfIn PDF document text
    • https://cdn.sqhk.co/guvevifowo/jgjfjbM/91015003453.pdfIn PDF document text
    • https://cdn.sqhk.co/dixufeja/jhjchi0/botubakop.pdfIn PDF document text
    • http://famozosivupiwij.sportsontheweb.net/26183424535.pdfIn PDF document text
    • https://cdn.sqhk.co/baxemazisod/iKjjKij/dr_driving_android_gameplay.pdfIn PDF document text
    • https://cdn.sqhk.co/gulizate/ii1BheJ/52699771970.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://magakawigola.epizy.com/probation_evaluation_form_sample.pdfIn PDF document text
    • http://momoxorepuvo.epizy.com/61648298442.pdfIn PDF document text
    • http://padusij.onlinewebshop.net/97632805411.pdfIn PDF document text
    • http://jefiwimagi.epizy.com/ingls_bsico_daniel_welsch_gratis.pdfIn PDF document text
    • http://daxotumolurotaw.rf.gd/najen.pdfIn PDF document text
    • http://kepofif.onlinewebshop.net/nuwasewubage.pdfIn PDF document text
    • http://zinamasab.epizy.com/going_concern_issues_in_financial_reporting.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fd4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD4E 6588 bytes
SHA-256: 746cda19d0a45b0d6108c63ff8192b2f88c2fff5e5937e692a7cb04b31166607
font_01_sfnt_off00010dc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DC8 5396 bytes
SHA-256: 0860366af68ac03b0d103cfeb998aadecdbe3d625f3002ac26c1ecbeae827dc7
font_02_sfnt_off00011ff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FF7 2052 bytes
SHA-256: 4803065606210d08a3b5ca3a819612e550a75c8f2894d6b471e1ce1a03fc4ed9
font_03_sfnt_off000129a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129A9 10508 bytes
SHA-256: 30a1e863e8fae59e38e6bec2c65dac38f57bc299c11f36b53fbf8a8abbf869ef
font_04_sfnt_off00014ce9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14CE9 16064 bytes
SHA-256: bf0f4fcb38973a4934c5d5f018af592d8b045b381c57f430cc61593326065dac