PDF malware analysis — malicious · 35f3d6e6b8fc8d97

MALICIOUS

PDF

79.7 KB Created: 2021-03-22 12:05:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20

MD5: 02f0a4d62b45cab0b88be5e5a7dd5fde SHA-1: a5b89d4cc2f84302ba80f0e0039bd07594f75f15 SHA-256: 35f3d6e6b8fc8d97d6ce9a11aad6561a4e35792434734e7fc65b40ebfcb2529e

214 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, with several pointing to known malicious redirector infrastructure or link farms. The ClamAV detection and ML classifier further indicate malicious intent. The document body, though heavily obfuscated, contains text related to 'autodesk student license', suggesting a potential phishing lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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://dafemum.ru/aws?utm_term=how+do+i+activate+my+autodesk+student+license In PDF document text
- https://zajinepimasi.weebly.com/uploads/1/3/2/8/132815118/4cf03d82375e.pdfIn PDF document text
- https://bekariniwoxisit.weebly.com/uploads/1/3/2/7/132710774/wabutamunifitavesi.pdfIn PDF document text
- https://cdn.sqhk.co/fusozuwalas/jfKqieM/56491057670.pdfIn PDF document text
- https://lowutifita.weebly.com/uploads/1/3/4/3/134352456/sovutuwererisin_rapixetatux_mitebedoxi_temuzifu.pdfIn PDF document text
- https://wanuwajazil.weebly.com/uploads/1/3/4/8/134899981/juzuw.pdfIn PDF document text
- https://cdn.sqhk.co/poxosafixe/hFjdxji/android_billing_machine.pdfIn PDF document text
- https://cdn.sqhk.co/zewumabigige/igmahIK/hunter_assassin_online_poki.pdfIn PDF document text
- https://vexakoloninabi.weebly.com/uploads/1/3/4/8/134851928/datomidinurew.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/ropuba/joveraramolazuludi.pdfIn PDF document text
- https://77701ba7-c5ad-4750-ab17-5b03548f7fc0.filesusr.com/ugd/9a242c_bd3506092d074ab5abb05fc0971b59c2.pdf?index=trueIn PDF document text
- https://40785fcd-1e5e-4316-9306-5db1d5795eae.filesusr.com/ugd/2f07a1_c2e1e356cb3340c08e60b90f2d6abb1d.pdf?index=trueIn PDF document text
- https://5862e4ea-63a6-4c92-af93-e06d02d1a664.filesusr.com/ugd/eaa371_6e7d4c4ee82744068f57ffdd97239513.pdf?index=trueIn PDF document text
- https://8b2103c5-345b-48fd-98e3-f19c90c4efd0.filesusr.com/ugd/0e2875_259035f23ec7489cb1714e3ecc917cc4.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/xulepiwa/sobuwewixitiluti.pdfIn PDF document text
- https://s3.amazonaws.com/kavugusepe/how_to_remove_motion_sensor_light_switch.pdfIn PDF document text
- https://s3.amazonaws.com/jidosatikim/power_bi_conditional_formatting_color_by_rules.pdfIn PDF document text
- https://s3.amazonaws.com/vufupu/57995258936.pdfIn PDF document text
- https://ac263381-fdad-4fda-ae78-6df6d71032d6.filesusr.com/ugd/25c42e_c243c66de31444258b7e6dc99de1e5b0.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/jarawaxanivu/aararo_aariraro_malayalam_song.pdfIn PDF document text
- https://s3.amazonaws.com/zonivezada/76898151781.pdfIn PDF document text
- https://s3.amazonaws.com/dazovosugev/how_much_does_a_hp_monitor_cost.pdfIn PDF document text
- https://s3.amazonaws.com/girilifawuxi/nisirokesinada.pdfIn PDF document text
- https://s3.amazonaws.com/zumomasugipeno/blacksmithing_guide_p99.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_off0000e623.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE623	4032 bytes
SHA-256: `51036caeaaec89de8680405f123e86dc84267b6fe8b2de34ea0e6c667ded1fe3`
`font_01_sfnt_off0000f495.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF495	5268 bytes
SHA-256: `7007dd9d67f54b57f4b1ae664531dc6c5e9c1677100b149250196c9a9deb4eaf`
`font_02_sfnt_off00010693.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10693	12228 bytes
SHA-256: `6c2ef2b2c1ffe7df84c6caa71db9527eb96d5a16841293c2adb7d6bd2696b0a5`

Open this report in the interactive analyzer, or submit your own file for analysis.