PDF malware analysis — malicious · 433824d3b6d7f0e9

MALICIOUS

PDF

70.9 KB Created: 2021-03-22 21:17:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 91f34f874cfdbfdde5e484bfd6cafd24 SHA-1: 9014c3b527b73484e84e35def6b17d1c973a04cc SHA-256: 433824d3b6d7f0e96607bf40978b87da880240f6a065b0ba446404f353471d05

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://pelibifir.ru/award?keyword=exhibition+design+book+pdf', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to an 'Exhibition design book pdf'. No scripts were extracted, but the presence of an external URI in a malicious PDF strongly suggests an attempt to redirect the user to a harmful resource.

Machine Learning

Nyx PDF Classifier malicious score 0.9546

Heuristics 3

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://pelibifir.ru/award?keyword=exhibition+design+book+pdf
- https://cdn-cms.f-static.net/uploads/4425227/normal_600a9db7eb0ad.pdf
- http://velesvoyage.ru/malayalam_books_free0v8rl.pdf
- https://static.s123-cdn-static.com/uploads/4380383/normal_5fcf3ce5c14c7.pdf
- https://static.s123-cdn-static.com/uploads/4465003/normal_5ff586e5a035b.pdf
- https://cdn-cms.f-static.net/uploads/4499636/normal_601f63edd3766.pdf
- https://static.s123-cdn-static.com/uploads/4478134/normal_5fef82e970e92.pdf
- https://static.s123-cdn-static.com/uploads/4486775/normal_600145eace01d.pdf
- https://cdn-cms.f-static.net/uploads/4475859/normal_60101e3d0efe9.pdf
- https://static.s123-cdn-static.com/uploads/4422912/normal_5feb32f6bde5d.pdf
- https://cdn-cms.f-static.net/uploads/4393488/normal_60186065791cc.pdf
- https://cdn-cms.f-static.net/uploads/4458827/normal_605055e27f29c.pdf
- http://ketotreno.buzz/place_value_tens_and_ones_grade_1byglb.pdf
- https://cdn-cms.f-static.net/uploads/4493200/normal_60462c15d570e.pdf
- https://cdn-cms.f-static.net/uploads/4387230/normal_6030602e8e131.pdf
- https://static.s123-cdn-static.com/uploads/4500183/normal_6000a1a007f6d.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/lanaladu/axial_yeti_score_roll_cage.pdf
- https://uploads.strikinglycdn.com/files/1dbc0cb9-ed66-4d69-a25d-69b0a082e551/baxuwilugo.pdf
- https://s3.amazonaws.com/guxosa/deepak_chopra_daughter_wedding.pdf
- https://s3.amazonaws.com/tifuwuw/agent_vinod_full_movie_hd_avi.pdf
- https://s3.amazonaws.com/gazivemon/bts_video_songs_hd.pdf
- https://uploads.strikinglycdn.com/files/c9be91be-9513-46c1-b28b-f05c53ff0f5e/how_does_edta_bind_to_calcium.pdf
- http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000ef18.bin` `df929bbb246077697559715ad4d80da49ae2b699856662fbdbb28f6c41ba0db4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEF18	5192 bytes

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