PDF malware analysis — malicious · 3ae804d3713b3c17

MALICIOUS

PDF

71.4 KB Created: 2021-02-09 13:27:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-12

MD5: a03c4aa8c1855085745a9a5f2412ba19 SHA-1: 15f91d575138cb7796abf89360034f6e46a7090d SHA-256: 3ae804d3713b3c17c44bd63eaa20e77355b6a4bb0a6753e51aca36e9e1cb55b8

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 URI pointing to a suspicious domain, which is likely part of the phishing lure. No scripts were extracted, but the presence of an external URI suggests an attempt to redirect the user to a malicious site.

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://druttle.ru/123?utm_term=silent+but+deadly+quotes PDF link annotation
- https://cdn.sqhk.co/gobenebovi/jghaghK/46546166681.pdfIn PDF document text
- https://cdn.sqhk.co/sawowudin/f2fijjf/63492745032.pdfIn PDF document text
- https://cdn.sqhk.co/pivugisaxap/3icidjc/subway_surfers_game_online_free_no_download.pdfIn PDF document text
- http://steelsho3.club/embroidery_designs_free_for_suitsezd5v.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/zaxawetawupo/video_maker_app_for_pc.pdfIn PDF document text
- http://buzanone.epizy.com/windows_10_1803_update_file.pdfIn PDF document text
- http://fibubaxuvuvixik.epizy.com/ic_4017_pin_configuration_datasheet.pdfIn PDF document text
- https://s3.amazonaws.com/likerajatob/wrong_zayn_malik_ringtone.pdfIn PDF document text
- https://s3.amazonaws.com/fotepopunaj/human_personality_types.pdfIn PDF document text
- http://ramufezumax.rf.gd/xatelexem.pdfIn PDF document text
- https://s3.amazonaws.com/nojemi/chrome_android_disable_bottom_bar.pdfIn PDF document text
- https://s3.amazonaws.com/fewunadupop/alphabet_letters_a-_z_kindergarten_alphabet_worksheets.pdfIn PDF document text
- http://xewaxal.epizy.com/82113478102.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_off0000da8e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDA8E	5192 bytes
SHA-256: `5a0a7a39ebbece02eed3bc1687cb169fad8ee999f227aca96a8a4cdbcb15a26a`
`font_01_sfnt_off0000ec44.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEC44	10340 bytes
SHA-256: `fa0915459a845cda293b39c470b3a6b3f6bdba6b83f4f87d84c4da1be16c67bf`

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