PDF malware analysis — malicious · 777658ea7a73f0cd

MALICIOUS

PDF

74.9 KB Created: 2021-03-01 05:57:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15

MD5: 3229baa54849221bf5362547f0717d15 SHA-1: a62a356209371d9db4880873a976e9ed5dfcf491 SHA-256: 777658ea7a73f0cd01eb9ec3e3971aabaddc26b8755020a2d4907de9a7d6a6d3

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The ML classifier and ClamAV detection strongly indicate maliciousness. The PDF contains an embedded URI pointing to a suspicious domain, likely intended to host a phishing page or download further malicious content. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit user interaction for malicious purposes.

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://ponafet.ru/strik?utm_term=formato+apa+ejemplo+revista PDF link annotation
- https://cdn.sqhk.co/mapetidul/yigbgjk/pound_cake_glaze_with_granulated_sugar.pdfIn PDF document text
- http://55571.ru/wisepay_app_not_workingmpntl.pdfIn PDF document text
- https://cdn.sqhk.co/zudatona/TI58bgi/20899965860.pdfIn PDF document text
- http://lenuvivureropi.scienceontheweb.net/why_wont_my_dvd_player_make_sound.pdfIn PDF document text
- http://figimumagoko.mygamesonline.org/putizalusi.pdfIn PDF document text
- https://cdn.sqhk.co/dewavasese/arVYlZj/plants_vs_zombies_free_download_for_pc_mod.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4407086/normal_602f7ee20e806.pdfIn PDF document text
- https://cdn.sqhk.co/zejizoguzut/EhbMhf2/43006419117.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/zalomi/brain_training_for_dogs_free.pdfIn PDF document text
- https://s3.amazonaws.com/rebesudanolo/secure_vpn_pro_apk_latest_version.pdfIn PDF document text
- https://s3.amazonaws.com/jujadodedaruxix/84983896364.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_off0000e6cd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE6CD	5056 bytes
SHA-256: `19975f780c3c402277a9442e5271a23373054cb025ab2087abc7dbf2aecc8a18`
`font_01_sfnt_off0000f7f1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF7F1	11584 bytes
SHA-256: `a21e884d94f370fad76cbd1cb51bfd5ae530ccc5b32c27181b7edea76aea8b80`

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