PDF malware analysis — malicious · 55ecf06e1e84e5fe

MALICIOUS

PDF

58.6 KB Created: 2021-02-04 07:45:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05

MD5: aecca4122fd6b9f6905825008a2f7d49 SHA-1: a6b6c93eaa97647f1da2228f0e8b55804f14dfed SHA-256: 55ecf06e1e84e5fe4c4b99cdcd1426e5e2f6e65fabdd976708d94c776f08e037

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, identified as a link farm, hosted on disposable domains. This technique is commonly used to redirect users to malicious websites for phishing or to download further malware. ClamAV detection and ML classification further support its malicious nature.

Machine Learning

Nyx PDF Classifier malicious score 0.8681

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
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
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://druttle.ru/aws?utm_term=caryl+churchill+cloud+nine+pdf PDF link annotation
- https://cdn.sqhk.co/xivovido/9i7jjBO/mutajikufisuwenopid.pdfIn PDF document text
- https://nefakemibozike.weebly.com/uploads/1/3/5/3/135314079/xujepobusi_lofome_sozunoramuje.pdfIn PDF document text
- https://buralekareze.weebly.com/uploads/1/3/4/3/134326789/1338527.pdfIn PDF document text
- http://callup.today/galaxy_watch_active_2_review_australia627qc.pdfIn PDF document text
- https://cdn.sqhk.co/vafodagusun/d7jaxji/sub_meter_reading_calculator.pdfIn PDF document text
- https://vazanekufom.weebly.com/uploads/1/3/5/3/135322674/227116.pdfIn PDF document text
- http://1offpark.xyz/twenty_small_sailboats_to_take_you_anywherer89yq.pdfIn PDF document text
- https://cdn.sqhk.co/kulobibab/iCNAWjd/fitbit_charge_3_bands_fit_charge_4.pdfIn PDF document text
- http://storeeu.info/4740750866a9ojv.pdfIn PDF document text
- https://cdn.sqhk.co/feledigowud/ghYyXha/99703406919.pdfIn PDF document text
- http://jumbochecker.com/783878853186sxli.pdfIn PDF document text
- https://musisemikalig.weebly.com/uploads/1/3/4/6/134694348/vatofekosufekiloz.pdfIn PDF document text
- http://f13x.xyz/algorithme_les_matrices_exercices_corrigsqd4s3.pdfIn PDF document text
- https://latejurudawiron.weebly.com/uploads/1/3/2/7/132740343/xudabonogutu.pdfIn PDF document text
- https://cdn.sqhk.co/tinolefowi/hGbyiev/tiny_tennis_racket.pdfIn PDF document text
- https://cdn.sqhk.co/jatizaru/hhegihj/nexipu.pdfIn PDF document text
- https://cdn.sqhk.co/pufuxarabo/eibgdP2/zombie_island_game.pdfIn PDF document text
- https://cdn.sqhk.co/fidumugovoz/ggfxgdp/pimigagovonanofusewuzavi.pdfIn PDF document text

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