PDF malware analysis — malicious · 570394b129185ba0

MALICIOUS

PDF

74.6 KB Created: 2021-01-01 01:54:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 9284739b42132786f35d9b36de7245b8 SHA-1: c12959cea3c495116c422785f3084ccc061126d6 SHA-256: 570394b129185ba0639cbaeb7a589092f7080dc0f4c6ef7396fc0109751bfc3d

96 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, specifically flagged as a phishing trojan. It contains an embedded external URI pointing to 'trafftec.ru', which is likely part of the attack chain. The document body, though heavily obfuscated, contains text related to 'cookie clicker' and application versioning, suggesting a lure 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://trafftec.ru/123?utm_term=cookie+clicker+sugar+lumps+ascension PDF link annotation
- https://cdn.sqhk.co/wepuvumug/ajemjeO/5494644489.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4387713/normal_5f9697e242421.pdfIn PDF document text
- https://cdn.sqhk.co/kewudomavave/fohbKhi/gonixugatop.pdfIn PDF document text
- https://cdn.sqhk.co/xiwasazafu/cFheih2/worship_songs_mp3_download_ghana.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4478950/normal_5fbab699de848.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/7901fd0b-cd30-440a-82b1-90fc96aa8efc/73622868835.pdfIn PDF document text
- https://s3.amazonaws.com/jinabom/husqvarna_spark_plug_cross_reference_hqt-1.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/66b08826-fc89-4155-aa71-668093f7eca4/53409183642.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0d7e2bae-8c9a-42d9-b1ee-aca3a10e0ba9/nordic_track_elliptical_manuals.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0a962daa-f4cd-4c55-a276-e7c18b9809cb/65525171263.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_off0000e67e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE67E	5224 bytes
SHA-256: `e39781205d81b88e0632695ee804d32ca323db1e9cc5790e820bc6b087845b07`
`font_01_sfnt_off0000f831.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF831	10884 bytes
SHA-256: `85706517b95a6832181ecfb0918820235ba3c373fe9d0fee51d86d562d6391cd`

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