PDF malware analysis — malicious · d27c9a65435a6b47

MALICIOUS

PDF

72.1 KB Created: 2021-01-12 22:01:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26

MD5: a12c9b101016a3852966731122d48ccb SHA-1: 3fc715a1de1fd9e1d47eb3b4b5ad00af00fc1d0e SHA-256: d27c9a65435a6b471450629e89f38c0eb595d52f98ce4ee39a304612b691aa4d

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL pointing to 'traffset.ru', which is likely used for malicious redirection or payload delivery. The document body displays a song lyric title, suggesting a social engineering lure to trick the user into opening the malicious PDF.

Machine Learning

Nyx PDF Classifier malicious score 0.9973

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://traffset.ru/aws?utm_term=chura+liya+hai+tumne+lyrics+video PDF link annotation
- https://cdn.sqhk.co/dijobika/hdgiiav/ants_go_marching_lyrics_cocomelon.pdfIn PDF document text
- https://cdn.sqhk.co/japexexuko/ChbTdje/27432610068.pdfIn PDF document text
- https://site-1084156.mozfiles.com/files/1084156/wipemapadunibepepo.pdfIn PDF document text
- https://site-1171574.mozfiles.com/files/1171574/home_free_music_download_online_mp4.pdfIn PDF document text
- https://cdn.sqhk.co/bepemuno/gcifjhQ/48835969609.pdfIn PDF document text
- https://kawijidaxo.weebly.com/uploads/1/3/4/8/134891868/1788580.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/tosevud/bt_notification_app_for_iphone.pdfIn PDF document text
- https://s3.amazonaws.com/lomogas/25754538676.pdfIn PDF document text
- https://s3.amazonaws.com/dufekifaral/nugumidowuzevozonamo.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000cfac.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCFAC	5244 bytes
SHA-256: `6b9bd1609a1b40145867d593becab3f684e1cee99b516471d7e887d79d1ef158`
`font_01_sfnt_off0000e15e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE15E	10388 bytes
SHA-256: `75e69ea87b3a835a3e46766a18425cd93217878eb79b18d08e63f68aed2fbc8c`
`font_02_sfnt_off0001043a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1043A	4324 bytes
SHA-256: `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`

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