PDF malware analysis — malicious · d18084f62810fbe4

MALICIOUS

PDF

101.6 KB Created: 2021-01-25 16:04:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 8c93a65d9373724f5034900ae6b9b79c SHA-1: e624bb4066590b2a3ad568cf7e6df77b6f2c7743 SHA-256: d18084f62810fbe4d84b0aa23f808381a23bc8e2c3a504b7d2fc2aa69346fe01

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.8849

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://traffset.ru/aws?utm_term=devil+may+cry+5+ps4 PDF link annotation
- https://static.s123-cdn-static.com/uploads/4465919/normal_5fff5dc2c91b9.pdfIn PDF document text
- http://lnstagramverifiedbadge-media.com/93043810778iyjmi.pdfIn PDF document text
- http://leafester.online/31571432956qg5m4.pdfIn PDF document text
- https://redodire.weebly.com/uploads/1/3/1/4/131408340/828501.pdfIn PDF document text
- http://look-hotel.com/xetoxowifetazulomomedozuo2620.pdfIn PDF document text
- https://denutuzuno.weebly.com/uploads/1/3/4/7/134706868/a708388e6fe5.pdfIn PDF document text
- http://bogplaktnc.fun/best_deals_on_christmas_trees_near_mexgl2i.pdfIn PDF document text
- https://gavanigo.weebly.com/uploads/1/3/1/3/131380609/dumemowuse.pdfIn PDF document text
- http://namedaun.fun/nolilimu4kdcn.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4476582/normal_6002182983b03.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4383314/normal_5fca5d3fa8011.pdfIn PDF document text
- http://gatorama.site/restaurant_renovation_showr5uou.pdfIn PDF document text
- http://stakingyfi.com/parkour_gym_oklahoma_citykhvjt.pdfIn PDF document text
- https://xikoroto.weebly.com/uploads/1/3/4/3/134338579/lifavotugid-bolesenev.pdfIn PDF document text
- http://b0xberry.online/jegoxelewusujosijakukupegs1u3x.pdfIn PDF document text
- https://xobuwepowitapim.weebly.com/uploads/1/3/0/7/130775805/a6cbb7abe6a820.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00015d0e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x15D0E	11840 bytes
SHA-256: `eb2d1a92c3cb544ac955d074eef4e302ae16bbab2426f3b83cdfe65bc799979f`
`font_01_sfnt_off000184ee.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x184EE	1768 bytes
SHA-256: `6177e54fdaa5aa1d3adcea891ca657473b767fbf2ecde9d969539cf439257f24`

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