PDF malware analysis — malicious · 1d74b3f94b5fd9e7

MALICIOUS

PDF

71.5 KB Created: 2020-12-23 10:40:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 95a40255b034327c9d3e3d9519282838 SHA-1: 796d8c37ac4d765521f56424f290173e50b97b3b SHA-256: 1d74b3f94b5fd9e7f6002a627d1b7d3d7f051138be873b1a00898fb5b2790400

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains an embedded URI pointing to a suspicious domain, likely a phishing lure. While no scripts were explicitly extracted, the presence of embedded URIs and the nature of the detection suggest it functions as a downloader or redirector to malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9990

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://trafficel.ru/strik?utm_term=images+of+cute+animals+to+draw+easy
- https://jevezorubik.weebly.com/uploads/1/3/4/8/134864628/weredovedew.pdf
- https://cdn-cms.f-static.net/uploads/4464722/normal_5fc2ca7b4aaaa.pdf
- https://wojeribexojuxu.weebly.com/uploads/1/3/1/8/131856158/edc7e59fc2ae.pdf
- https://static.s123-cdn-static.com/uploads/4454040/normal_5fe1074d796cd.pdf
- https://jupisururixed.weebly.com/uploads/1/3/4/3/134339091/3148880.pdf
- https://cdn-cms.f-static.net/uploads/4488592/normal_5fbf03653b40b.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://s3.amazonaws.com/xanebavifamopez/mac_preview_form_font_size.pdf
- https://static1.squarespace.com/static/5fc5deeb1c8c74131453fc73/t/5fd741c4e5ac5828963db3a7/1607942596917/extinct_elephant_like_mammal_crossword_answer.pdf
- https://s3.amazonaws.com/panokojol/jikijatodufidiw.pdf
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe077cbc819f1cf49f8a54/1606289277042/sterling_cutlass_short_scale_review.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c42e.bin` `ce422811ad395a81bd4ca315feff8cf3c75ee9727098723bf5dde5affa1b51e7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC42E	5356 bytes
`font_01_sfnt_off0000d652.bin` `6d2a3a16cc464ce72cf05976c7f96a31c93af2202e0dc760c37a694345e222ee`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD652	1800 bytes
`font_02_sfnt_off0000dee2.bin` `dbc9da6eab5e9f197a7629af5fb82f12fa30deebd09b2f5ed94c63d80007fc55`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDEE2	10416 bytes
`font_03_sfnt_off00010291.bin` `ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10291	4324 bytes

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