PDF malware analysis — malicious · 2599b31eb48e730b

MALICIOUS

PDF

70.2 KB Created: 2021-02-20 15:45:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a50cdd5fc8c5780dd1fba394c62f1d6a SHA-1: ed9f724d6c1f8d3a4aba2904c57d5c2e34e7fc17 SHA-256: 2599b31eb48e730b75624bd27f9bb51dd706aa74f94a7ae03d7203ee7b05ffad

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'maypoin.ru', which is likely used to redirect the user to a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to a game guide, consistent with social engineering tactics.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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/wix?keyword=plants+vs+zombies+2+guide+lost+city
- https://static.s123-cdn-static.com/uploads/4406473/normal_5ffbbe386a2f6.pdf
- http://ladariduzaw.22web.org/23189633948.pdf
- https://cdn.sqhk.co/dasofuduveje/UiiIhcZ/history_of_the_universe_in_one_year.pdf
- http://artrosil.xyz/excel_formulas_if_then_sum2ptw1.pdf
- http://vakekaninu.iblogger.org/bluestacks_for_windows_7_free_filehippo.pdf
- http://tomogorman.com/askew_crossword_clue_informal62vrx.pdf
- http://hookup154.online/xolafuxatunibasuvaginob63kdp.pdf
- https://cdn-cms.f-static.net/uploads/4496193/normal_602801221749d.pdf
- https://cdn.sqhk.co/kelanadu/ggjcign/22466990510.pdf
- http://bodyita.space/genovudoboxesurelibutudiv92i7q.pdf
- https://cdn.sqhk.co/lirebirab/IBjjibz/28977125479.pdf
- http://jopkapopka.online/jezajoxavasegtnxum.pdf
- http://teleporttur.ru/calligraphy_worksheets_for_beginners70jyh.pdf
- https://cdn-cms.f-static.net/uploads/4366003/normal_5fd282d85e838.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://gikisomu.epizy.com/dematexegotalupun.pdf
- https://s3.amazonaws.com/zuwosil/retirement_budget_planning_spreadsheet.pdf
- https://s3.amazonaws.com/dikomavomem/cease_and_desist_letter_uk.pdf
- https://s3.amazonaws.com/jeponowon/facebook_home_page_html_template.pdf
- https://s3.amazonaws.com/wegugus/mobobetomifazadub.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d5f3.bin` `27ee61e0eb1dd07b102f0587b3eaf3092a94016047c139ecf8710a6de521d9b1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD5F3	5648 bytes
`font_01_sfnt_off0000e933.bin` `127d56a31ea95df8385cfdb05509a67ea7cff2e6a4a154bcf14cb645a01d4cb3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE933	10008 bytes

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