Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f634aee4dec3d11…

MALICIOUS

PDF

103.5 KB Created: 2021-03-07 12:40:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 18369c104365186a1a89713176c8c779 SHA-1: 25cfa36da17dee6cca2692ba6d820e0824ccdc9e SHA-256: 6f634aee4dec3d11810e3ffeabbda436d925e8bf2d559451997fec90c11a09a0
184 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many hosted on disposable domains, indicating a link farm designed to direct users to potentially malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery via these external links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9024

Heuristics 5

  • 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
  • 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://gimoguvi.ru/wb?keyword=sweat%20by%20lynn%20nottage%20script
    • http://catsism.com/81435481344l47mn.pdf
    • https://kezopepeza.weebly.com/uploads/1/3/4/3/134332650/8351009.pdf
    • https://static.s123-cdn-static.com/uploads/4376382/normal_5ff0696648999.pdf
    • https://cdn-cms.f-static.net/uploads/4385631/normal_5fd8a0d195e5f.pdf
    • http://usacreditmonitoring.info/webogufewenobibamoboli4vakm.pdf
    • http://zenajok.medianewsonline.com/monster_hunter_trailer_2020_deutsch.pdf
    • http://vowitufafuzebil.scienceontheweb.net/musuza.pdf
    • https://saniluje.weebly.com/uploads/1/3/4/3/134323688/bewewogafofavutab.pdf
    • https://dutizadip.weebly.com/uploads/1/3/4/8/134889078/fefimamu.pdf
    • https://mufisifarugevap.weebly.com/uploads/1/3/4/5/134595961/ketopupa-dupexuxoro-waxaxasuvidifif.pdf
    • https://bovimifukid.weebly.com/uploads/1/3/4/8/134882826/630ba5c2ccf10.pdf
    • http://istlan.fun/labonerixovejavakimatafu5tu7z.pdf
    • https://cdn-cms.f-static.net/uploads/4380411/normal_601c5b85a0983.pdf
    • http://filmera.ru/international_business_news_wsjgj71a.pdf
    • http://roporuti.onlinewebshop.net/where_the_wild_things_are_free_online_streaming_movie.pdf
    • https://uploads.strikinglycdn.com/files/74cd421a-f669-4bfd-ab9b-a8359b3eba67/gazatifumugodemitef.pdf
    • https://99516632-72ce-40f3-a9a1-a01c91361c65.filesusr.com/ugd/e42c35_7d8a76d382374a59a1e788a7b75f9d33.pdf?index=true
    • https://4465b75e-e642-4f53-8c89-e22f0b9d4994.filesusr.com/ugd/ecd213_23294ed8d0034fb68d66ba76a0dbe05e.pdf?index=true
    • https://4454cc88-256b-48ad-9013-c0414c72072d.filesusr.com/ugd/67e251_cc20ed3c73934f338310319af7e355e7.pdf?index=true
    • https://d19688e0-347f-4d9d-8cb3-d47c6e049f3d.filesusr.com/ugd/c618e9_6ebfd05449b54e6c830e1cb0ca7d90ba.pdf?index=true
    • https://uploads.strikinglycdn.com/files/e4d4aa2e-4ced-4b9e-b03d-9feb763d3e30/is_sonic_soft_serve_real_ice_cream_made_from_pig_fat.pdf
    • https://5e9816b5-e261-4a84-a5c7-594b6999e1c8.filesusr.com/ugd/eb2f7d_0d2f7b2be63c4f6786c49ad36989953e.pdf?index=true
    • https://uploads.strikinglycdn.com/files/ee832d98-6e91-4c05-a4b1-04ce08744319/52451699938.pdf
    • https://uploads.strikinglycdn.com/files/f993817a-9db2-4ac8-85a3-79e410bef95f/national_competency_based_teacher_standards_philippines.pdf
    • https://uploads.strikinglycdn.com/files/abb25bbf-4c37-4ded-a31a-c1eaf879a5e9/gejekirujiwuk.pdf

Open this report in the interactive analyzer, or submit your own file for analysis.