Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f27e7b1e56b4c0b…

MALICIOUS

PDF

59.9 KB Created: 2021-02-26 00:07:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 6ddde9c6b14c442d3f67810a63f19d9a SHA-1: e0996f584a1455ac0b92c8bafb23532948a401ed SHA-256: 6f27e7b1e56b4c0bca1cceec9b2a741d6c2c8343a2aaa85d6ba00fd66039f2f0
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous embedded URLs, many pointing to disposable hosting and acting as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The file's structure and numerous external links suggest it's designed to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9545

Heuristics 4

  • 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
  • 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://jottigo.ru/award?keyword=ukulele+play+along+songs+easy+counting+stars PDF link annotation
    • http://lavka-karamel.ru/jack_the_giant_slayer_in_hindi_filmyzillatosys.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4390095/normal_5fcecc881e0e2.pdfIn PDF document text
    • http://cardioactiveufficiale.site/semekaku9v6h.pdfIn PDF document text
    • http://pop-marketplace.ru/gafexolifowthrh9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496810/normal_6024c95d8dcc5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412900/normal_60130817a2f99.pdfIn PDF document text
    • http://nekuwagibajese.getenjoyment.net/qsc_gx3_power_amplifier_300_watts_reviews.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4419424/normal_60249219256eb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445326/normal_5fcf0dc71455b.pdfIn PDF document text
    • https://bufigolumixi.weebly.com/uploads/1/3/4/2/134234787/dobexekugazu-mexomonud-wizabakejami.pdfIn PDF document text
    • http://flymoney.net/36906549508w64hs.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426571/normal_5fdd91e4796c8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4474759/normal_5ffe1b76a9f7d.pdfIn PDF document text
    • http://zizodoroluxonaf.sportsontheweb.net/pizowulipejarijavojaze.pdfIn PDF document text
    • http://xafopawiki.medianewsonline.com/what_comes_on_burger_king_chicken_sandwich.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ginowane.onlinewebshop.net/52411364260.pdfIn PDF document text
    • http://kigexozuzexozo.rf.gd/nexigal.pdfIn PDF document text
    • http://danijikuguwidak.rf.gd/how_to_write_yeshua_in_hebrew.pdfIn PDF document text
    • http://tuxexagixib.rf.gd/adam_smith_theory_of_moral_sentiments.pdfIn PDF document text
    • http://lisirowi.rf.gd/bff_shopping_spree_apk.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd35.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD35 5140 bytes
SHA-256: 38d834b42c0c56f864b0b291e94242a3a9ea3a96b86a881b0a80428236a0f385