PDF malware analysis — malicious · 588e4e2c07ada0d0

MALICIOUS

PDF

82.4 KB Created: 2021-03-01 01:38:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 355bce4497bcbf86980df9851903727c SHA-1: eae9dbf738a73c6faa9e4c0b8e4e97d10558bf65 SHA-256: 588e4e2c07ada0d0e72402075953d7f3be36d4a2a3653172eb23e873ca3594f8

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://bologen.ru/aws?utm_term=gram%25C3%25A1tica+ingl%25C3%25A9s+b%25C3%25A1sico PDF link annotation
- https://static.s123-cdn-static.com/uploads/4390350/normal_5fe5d8b084eaf.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4392658/normal_6004cf3e2b1bb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4491688/normal_60216e8bbc04b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4462339/normal_5fd7d9306479e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4406787/normal_600bf0ea6ecb5.pdfIn PDF document text
- http://rexonina.medianewsonline.com/fifty_shades_freed_movie_where_to_watch.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4411229/normal_5ff65856ebd05.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369788/normal_5fed5434204b3.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4495390/normal_5ffc38fc1735e.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/lonozote/cadimage_for_archicad_18.pdfIn PDF document text
- https://s3.amazonaws.com/fizufapu/38540994824.pdfIn PDF document text
- https://s3.amazonaws.com/vipuxafol/26288785684.pdfIn PDF document text
- https://s3.amazonaws.com/mukut/2000_yamaha_timberwolf_250_battery.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_off00010021.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10021	5668 bytes
SHA-256: `c87a0841e09ca052c7d05cb6d7874de87ed01076425b4c915ac1ae3ee7683ea5`
`font_01_sfnt_off00011277.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11277	12456 bytes
SHA-256: `15a07bb3f4f9ec5d1a6d9ff11848e8dcb570ea2f2440cb90f5601dc109257269`

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