PDF malware analysis — malicious · 59cff99bc468483c

MALICIOUS

PDF

69.9 KB Created: 2021-03-18 08:08:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 37f01e89f535031fcfab62c7970ae0cb SHA-1: 4458c77340d4e5f647780258b2890ef7ab2b0272 SHA-256: 59cff99bc468483cd280df6ec589f02352be269436c8b9d333cd8b2423bc6be7

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of multiple external URLs, including one with a suspicious keyword, suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF format and embedded URLs are commonly used for social engineering attacks.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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
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://midufefew.ru/wix?keyword=rubank+elementary+method+clarinet+pdf
- http://interbankdigital.com/used_swisher_trail_mower_for_saleykddb.pdf
- https://static.s123-cdn-static.com/uploads/4464532/normal_5fedcbe312f00.pdf
- http://bogozopato.iblogger.org/badlapur_movie_hd_480p.pdf
- http://pojoxigi.iblogger.org/simple_definition_of_philosophy_of_social_science.pdf
- http://juvulirodesowe.22web.org/88373180825.pdf
- https://static.s123-cdn-static.com/uploads/4471096/normal_5fe2dc7a38a70.pdf
- https://cdn-cms.f-static.net/uploads/4403823/normal_603d7b4c44d0a.pdf
- http://artistichomesolutions.com/jukuzafugikanefhcafa.pdf
- http://iuts.space/9986694521992l9n.pdf
- https://cdn-cms.f-static.net/uploads/4413473/normal_5fd3c13e9530c.pdf
- https://static.s123-cdn-static.com/uploads/4479236/normal_5fec7acdf37af.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://zovaner.rf.gd/dapuxawawilom.pdf
- http://zunufofidufup.rf.gd/what_is_4k_pass_through_receiver.pdf
- http://joxowosikaze.rf.gd/pixel_navigation_bar_pro_apk_4._4.pdf
- http://nekaluro.rf.gd/data_analysis_excel.pdf
- http://javebetuxupekas.epizy.com/kewosuxal.pdf
- http://gatutob.rf.gd/xumazofilu.pdf
- http://gajovab.epizy.com/land_reform_in_the_philippines_issues.pdf
- http://zixagoku.rf.gd/pukuketapaziwejusuzop.pdf
- http://rebopugosive.rf.gd/vokowovilepazekebu.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_off0000d0dd.bin` `029c71698842998b42366e305b0ad7b82f3405b0649ccf5a0829200de8a74163`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD0DD	5532 bytes
`font_01_sfnt_off0000e38e.bin` `1fd1334ea4e3947b8e55effc68b0cbe77c484cca846f131b74c20b49449c975b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE38E	10904 bytes

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