PDF malware analysis — malicious · 5b16c178e18df4ed

MALICIOUS

PDF

78.5 KB Created: 2021-04-04 06:14:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21

MD5: 5d6775829058be7ab84e25f0f1db7c94 SHA-1: 2363f4e21d28df343085d90ea1222bc8821fcff3 SHA-256: 5b16c178e18df4ed659dbd2a9e17f74b5bd3721579053ee1cecc7cb871ace89f

164 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics, including a critical PDF SEO link farm detection and ML classification, indicating malicious intent. The presence of numerous external links, including one to 'botokaw.ru', suggests an attempt to redirect users to potentially harmful sites. While no scripts were explicitly extracted, the PDF structure and link farm behavior are indicative of a phishing or content-luring attack, likely delivered as an attachment.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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://botokaw.ru/strik?utm_term=how+do+i+sign+up+to+be+a+merit+badge+counselor PDF link annotation
- https://static.s123-cdn-static.com/uploads/4404740/normal_5fecae3b737fd.pdfIn PDF document text
- http://posurazatux.mypressonline.com/mukep.pdfIn PDF document text
- http://zijafanovidiz.sportsontheweb.net/52393107586.pdfIn PDF document text
- http://topcreditmonitoring.info/ge_fanuc_proficy_machine_edition_free_downloadm9go4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4416510/normal_6015de8baa127.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4501791/normal_603ecd42b2d03.pdfIn PDF document text
- http://raisinsapp.club/latest_india_china_news_livec85pk.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4405206/normal_600fb00ca87b3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384323/normal_605d659cab12d.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/gawabog/good_morning_shayari_hd_wallpaper_photo.pdfIn PDF document text
- https://s3.amazonaws.com/pipaneku/53636298535.pdfIn PDF document text
- https://s3.amazonaws.com/diwitapezu/hes_here_eddie_james_lyrics.pdfIn PDF document text
- https://fff5164c-1337-4dca-a870-9ee8129e9d1f.filesusr.com/ugd/11cbe4_db11c8815ab04871a61d332a21184582.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/setigafat/78415892387.pdfIn PDF document text
- http://votixeju.onlinewebshop.net/58246633876.pdfIn PDF document text
- https://s3.amazonaws.com/zamuriza/pugaduxi.pdfIn PDF document text
- https://4253c66a-660d-4c83-b31d-f715833d547b.filesusr.com/ugd/d9e9a0_5e14429752c046a48c361540ca0f61b4.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/tamobalasu/xazuloxotulurikijutosan.pdfIn PDF document text
- https://s3.amazonaws.com/zabevog/difference_between_android_version_and_api_level.pdfIn PDF document text
- https://s3.amazonaws.com/mokixetat/xikasapekasifotalabime.pdfIn PDF document text
- https://9579f988-9383-433c-acf3-5fff76e0c882.filesusr.com/ugd/191a6d_5bd1db3fe813490186d33e1dfb5c527b.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/mubemutolewe/dell_precision_m6800_i7-4810mq_specs.pdfIn PDF document text
- https://50aad03f-9d2a-47e6-be13-abd12f321b17.filesusr.com/ugd/3fd638_7d19ea43466546e6bcfb8cbb2bc3a9dc.pdf?index=trueIn 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_off0000e3ba.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE3BA	5468 bytes
SHA-256: `270c042add9d2efeccf652fb11b04fd735c2ff53b4de84d809f1be223b69c1e6`
`font_01_sfnt_off0000f644.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF644	11260 bytes
SHA-256: `8c770da41f5c8d557ae095994b0460f79ac81212684501d6eb92691e4c7da28e`
`font_02_sfnt_off00011c6a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11C6A	4324 bytes
SHA-256: `ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3`

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