Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1d01d93f12ec33a…

MALICIOUS

PDF

41.6 KB Created: 2021-01-19 16:56:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: abbb7a009b6508a56f7c8ee18781184f SHA-1: 429c30b7899fb3825723162b1e3d92e10153b2aa SHA-256: d1d01d93f12ec33a45220d36c978e00b6d4ba05babcecf1271d63070d907fd55
144 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It contains an embedded URL, https://jottigo.ru/aws?utm_term=android+studio+latest+version++32+bit, which is likely used to redirect the user to a malicious site. The document's structure and small size suggest it's designed to trick users into clicking the link, potentially leading to further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8189

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 41 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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/aws?utm_term=android+studio+latest+version++32+bit
    • https://cdn-cms.f-static.net/uploads/4452400/normal_5fbe312c646cb.pdf
    • https://cdn.sqhk.co/vonezositixi/dibIhgn/pongal_2021_tamil_nadu.pdf
    • https://lufugidot.weebly.com/uploads/1/3/4/8/134848642/wilezipa.pdf
    • https://cdn.sqhk.co/fexejikexew/diay8ii/14473056004.pdf
    • https://bogezozoxo.weebly.com/uploads/1/3/4/4/134479702/939232.pdf
    • https://cdn.sqhk.co/tazuxalana/eGgjChg/microsoft_office_day_planner_template.pdf
    • https://livesagu.weebly.com/uploads/1/3/1/4/131437401/bagemifudel-tovasuxudu.pdf
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    • https://static.s123-cdn-static.com/uploads/4410443/normal_5ff708eac5f74.pdf
    • https://static.s123-cdn-static.com/uploads/4374682/normal_5fe5b8a6d4d9f.pdf
    • https://cdn-cms.f-static.net/uploads/4393502/normal_5f92679ae6cb7.pdf
    • https://cdn.sqhk.co/vigesiji/hdinHig/8_ball_pool_old_version_download_ios.pdf
    • https://cdn.sqhk.co/ludozenidi/gGjgugc/star_wars_battlefront_2_2005_ragdoll_mod.pdf
    • https://fategebedabeno.weebly.com/uploads/1/3/4/7/134718848/085e8efba9fb565.pdf
    • https://levarimabogi.weebly.com/uploads/1/3/5/3/135328943/sepore-rebemovumet.pdf
    • https://wisiwojapano.weebly.com/uploads/1/3/4/8/134896472/zasiludokuxujof-gidig.pdf
    • https://static.s123-cdn-static.com/uploads/4463262/normal_5fcb4df87cb6e.pdf
    • https://rumidevuj.weebly.com/uploads/1/3/4/3/134310249/tumizobosere_moralerujixe.pdf