PDF malware analysis — malicious · c05c5855b76de3e6

MALICIOUS

PDF

69.0 KB Created: 2020-11-16 13:21:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14

MD5: e63500b8fc74796d8df8700d5d734d99 SHA-1: 1e1b45c2da3c8a1667a6337419c37321d5202805 SHA-256: c05c5855b76de3e607f9ca184909b85ef488fbe652e7adc61b4d337e9e881a9c

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'traffine.ru' suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document, likely delivered via spearphishing.

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://traffine.ru/123?utm_term=xerox+colorqube+8570+error+codes PDF link annotation
- https://jipepusubame.weebly.com/uploads/1/3/4/0/134040653/tesejazunudavi.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417814/normal_5f95c6eb72568.pdfIn PDF document text
- https://gemaxudemaxepeb.weebly.com/uploads/1/3/1/0/131070646/010f035b21e9f.pdfIn PDF document text
- https://jasazifo.weebly.com/uploads/1/3/1/4/131437377/ed923.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421056/normal_5fa625a821b4c.pdfIn PDF document text
- https://waxojokizubow.weebly.com/uploads/1/3/4/4/134482073/6663a1b7349.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/d592f343-a5ae-4990-bde5-85ae6e258e6e/zewapugesipefozewuwobe.pdfIn PDF document text
- https://s3.amazonaws.com/tetazino/2019_ss_benefits_worksheet.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5d379ac6-730d-4af0-8f96-ec1b91d77493/13540851569.pdfIn PDF document text
- https://s3.amazonaws.com/vazisi/lizoxulumefelodimevef.pdfIn PDF document text
- https://s3.amazonaws.com/mefovu/2922765012.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_off0000d14a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD14A	5576 bytes
SHA-256: `93abdabc1fe74e7e172d731f523f8a4530693e8aa531b3c41c6170538e4769d2`
`font_01_sfnt_off0000e45d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE45D	10400 bytes
SHA-256: `6ed85681af5973d73a837b6e62e81a5bb114b63fc564d74b96fe1821627c500a`

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