PDF malware analysis — malicious · 93279a35ed238bfb

MALICIOUS

PDF

76.1 KB Created: 2020-12-13 14:48:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 91007c8b964572e911126118ac53bbe1 SHA-1: e1077556fc3631f1c2d420b3b95c4a0f936bdf68 SHA-256: 93279a35ed238bfb90f6fcbe3ead91e67f7d50350ecfab002deeea42e677f663

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of external links, identified as a PDF link farm. One of these links, 'https://traffine.ru/aws?utm_term=minority+meaning+in+application+form', is flagged as unknown reputation, suggesting a potential malicious destination. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 0.8501

Heuristics 4

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
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://traffine.ru/aws?utm_term=minority+meaning+in+application+form
- https://xijonezamo.weebly.com/uploads/1/3/1/4/131407630/betujo_nigoj_kixazekulibebe.pdf
- https://wetivaxidufe.weebly.com/uploads/1/3/4/8/134891283/pojozife.pdf
- https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/vaxukekiwurefebe.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/xatojem/everstar_air_conditioner_manual.pdf
- https://s3.amazonaws.com/gezetega/biomateriales_compuestos.pdf
- https://s3.amazonaws.com/vonuxagupeduze/best_castle_building_game_android.pdf
- https://s3.amazonaws.com/befarekogol/turorefug.pdf
- https://s3.amazonaws.com/dobesogum/circle_of_fifths_diagram.pdf
- https://s3.amazonaws.com/wemupajese/hard_algebra_worksheets.pdf
- https://s3.amazonaws.com/meludav/18401692818.pdf
- https://s3.amazonaws.com/tuzamada/24659116921.pdf
- https://s3.amazonaws.com/zirojopemup/building_plan_design.pdf
- https://s3.amazonaws.com/fatisake/bike_race_mod_apk_ultra_bike.pdf
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000fb55.bin` `be3017270f84170fb2b4b40ae126bca608697ec99449f2e629b43c81694df101`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFB55	5052 bytes
`font_01_sfnt_off00010c70.bin` `e9f7896e9d97951b3542062b718852d235e5f61073cc6db59bbb916d833c39f0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10C70	11892 bytes

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