PDF malware analysis — malicious · 3aabd0aa7df56a68

MALICIOUS

PDF

70.3 KB Created: 2021-01-15 20:41:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15

MD5: f2d37612f3f90a60031125d8ce0dadaf SHA-1: 1043734981e851d8f95de6401428491189f2e5a6 SHA-256: 3aabd0aa7df56a68255e8a3d402c1b66508c22448684ae0173aa9ffaa1dfe778

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 'trafffe.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, suggests a lure related to 'Philadelphia food truck license cost', indicating a social engineering pretext.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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://trafffe.ru/123?utm_term=philadelphia+food+truck+license+cost PDF link annotation
- https://cdn-cms.f-static.net/uploads/4417205/normal_5f9ef83763aa2.pdfIn PDF document text
- https://nosisakapu.weebly.com/uploads/1/3/4/7/134773138/lifomovuru.pdfIn PDF document text
- https://juwavade.weebly.com/uploads/1/3/4/5/134526694/5938792.pdfIn PDF document text
- https://bofuvozera.weebly.com/uploads/1/3/5/3/135331850/favidesi.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4422371/normal_5fdf543c5a22d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409840/normal_5f96d459d1cb1.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/nupotukig/reported_speech_questions_rules.pdfIn PDF document text
- https://s3.amazonaws.com/zifilobesumafi/47557163148.pdfIn PDF document text
- https://s3.amazonaws.com/kibavutibeved/kaala_koothu_movie_tamilgun.pdfIn PDF document text
- https://s3.amazonaws.com/gotenukevepunin/kinds_of_sentences_worksheet_class_8.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000cb01.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCB01	2940 bytes
SHA-256: `5abd1102bbb49cd9fee3e8c7db4f4b96944035d8cd52b1c4794f50b825db5b40`
`font_01_sfnt_off0000d58d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD58D	5308 bytes
SHA-256: `1ea54e4d13e60f0d6fce7f9ff1df0ec69f37264b1182d737f4089605c177d7c6`
`font_02_sfnt_off0000e79b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE79B	10920 bytes
SHA-256: `1092da0420f86bf7c85c375d3e38697b3d3fd7109b4dc0aace60fdd3544eb777`

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