PDF malware analysis — malicious · eff2f4e9c1d69ef3

MALICIOUS

PDF

80.2 KB Created: 2021-02-08 14:18:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17

MD5: c0a68b6c3ed1dbf181807bc702eb84d5 SHA-1: a6a1fff870db86bad09e4e47850e5c47cb2dc29e SHA-256: eff2f4e9c1d69ef34f6f25c4e47d37e2b3804c4c60030b4bce8c5256d7c5cfd5

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document detected as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to 'https://maypoin.ru/123?utm_term=geometry+dash+2.11+apk+ios', which is presented as a search result for a game download. This suggests a phishing or social engineering attack aimed at tricking the user into downloading a payload.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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://maypoin.ru/123?utm_term=geometry+dash+2.11+apk+ios PDF link annotation
- https://cdn.sqhk.co/wumidimux/krzhaji/hair_salon_spa_salon_games.pdfIn PDF document text
- https://cdn.sqhk.co/wuzededoz/bhbtqhj/templar_battleforce_rpg_mod_apk.pdfIn PDF document text
- https://cdn.sqhk.co/joziroluxu/nDndgfE/royal_family_news_from_around_the_world.pdfIn PDF document text
- http://astropsychology.site/virus_del_mosaico_del_tabacoe9xsm.pdfIn PDF document text
- https://cdn.sqhk.co/menasimax/c0jatjj/ball_sort_puzzle_level_504.pdfIn PDF document text
- https://cdn.sqhk.co/lokutibu/2hcihie/boss_punch_polo_shirt.pdfIn PDF document text
- http://tapikujub.22web.org/buttocks_workout_application.pdfIn PDF document text
- https://cdn.sqhk.co/rajunakeb/hejjghV/51673097294.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/rafiralexezol/82026673959.pdfIn PDF document text
- https://s3.amazonaws.com/vuraradaso/corporate_seal_template.pdfIn PDF document text
- https://s3.amazonaws.com/fewifuwu/bivalexegefomimamidoget.pdfIn PDF document text
- http://vegunag.rf.gd/suzetuzaxovixiromax.pdfIn PDF document text
- http://vovijez.epizy.com/yowhatsapp_app_free_2018.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f088.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF088	5580 bytes
SHA-256: `4b1dcfe39e2a9da2f06e5da9b13a16f2424890dd4cc5fc240d3bc8bcd5e9c25e`
`font_01_sfnt_off0001036b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1036B	14856 bytes
SHA-256: `8a1abdf6280456b890ccbe27c08f3fe2171bc6418bbe14f4c2d53e7e91aa4b02`

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