PDF malware analysis — malicious · f88cc7dbfaca0e32

MALICIOUS

PDF

74.5 KB Created: 2021-02-20 14:21:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22

MD5: 3312883574f675b241ea693c77a5de8f SHA-1: 75f78d1f49ffa832d333fbcad5674c4c8ba706a9 SHA-256: f88cc7dbfaca0e329f38c6d06db741bec4a6ebe59bd7811020966a390d5bb0b3

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to a suspicious domain, which is likely used for phishing or to download a secondary payload. The document body, though heavily obfuscated, suggests a lure related to 'learning Arabic fast'.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/strik?utm_term=how+to+learn+arabic+fast+pdf PDF link annotation
- http://kino-vezde.ru/building_maintenance_service_reportoxbdl.pdfIn PDF document text
- http://baderakavakuf.22web.org/tagukuzap.pdfIn PDF document text
- http://luminar4-download.xyz/how_to_determine_whether_an_acid_is_strong_or_weakquaq7.pdfIn PDF document text
- https://cdn.sqhk.co/mozulunilex/dHnjggf/70551620462.pdfIn PDF document text
- http://petuvinopezana.iblogger.org/29605358737.pdfIn PDF document text
- https://cdn.sqhk.co/xorazasuno/AgdMTgj/xizividebatateveviz.pdfIn PDF document text
- http://wspring.space/zirizohx0cp.pdfIn PDF document text
- https://cdn.sqhk.co/kabawamurelo/hfhjjfm/85451191546.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://titegerekarirov.rf.gd/what_would_cause_a_car_alarm_to_keep_going_off.pdfIn PDF document text
- https://s3.amazonaws.com/regovadeje/aankhen_2002_songs_ming.pdfIn PDF document text
- https://s3.amazonaws.com/vigevot/heinz_field_parking_guide.pdfIn PDF document text
- https://s3.amazonaws.com/jasipefulaxiduj/50507783094.pdfIn PDF document text
- https://s3.amazonaws.com/lebejos/63311644815.pdfIn PDF document text
- https://s3.amazonaws.com/sizadagazagaj/donupuruxegodirotokovunob.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_off0000e66d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE66D	5344 bytes
SHA-256: `b1b59b5fa7b6d4253e260fd134a1fcb062d2059c0b222df993be28c706fcd062`
`font_01_sfnt_off0000f8b2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF8B2	10672 bytes
SHA-256: `add4cb7ac8d0326e8f4d01444b497d846b85da74b8091d8b2f2f7de02c6fcc30`

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