PDF malware analysis — malicious · 021f574e5cd0ad72

MALICIOUS

PDF

144.2 KB Created: 2021-05-29 09:49:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24

MD5: 459c9d680240b91d8af0fac9fe7df682 SHA-1: 187914e0bb5883e9af4b235caa1f9d625b6d4545 SHA-256: 021f574e5cd0ad72b894731ddf122ab60ebb501947964b1d266934d5a7b8e54f

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

Heuristics 5

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.
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://bologen.ru/strik?utm_term=genie+garage+door+opener+keypad+reset PDF link annotation
- https://static.s123-cdn-static.com/uploads/4417980/normal_6004c0e9c27e0.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386851/normal_605dd9ec28856.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450426/normal_6019782c5db4f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4385631/normal_604eb61743e88.pdfIn PDF document text
- https://tizalabap.weebly.com/uploads/1/3/0/7/130775180/dadeguxiba-lisokokisorewe-terenulin-xosotevi.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4496391/normal_5fde49e50f75b.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4460057/normal_5fcbdbb58a878.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4447878/normal_5fcbe6f4287df.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4383321/normal_600ddb8e5720f.pdfIn PDF document text
- https://basitonivi.weebly.com/uploads/1/3/4/5/134584834/ca06b603921ae.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4413111/normal_5ff0c37f83ef0.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4404520/normal_5feb49cdc56e2.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/91653e49-cad0-48ce-ad5c-82b196113663/farsi_ki_pahli_kitab.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a86a542e-5f8b-4633-9de3-9e1e5002d512/why_is_rosaline_important_in_romeo_and_juliet.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3522abaf-04af-41fd-b887-20ba0c3203a4/2012_honda_civic_service_due_soon_b123.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dbdef37e-e7bf-414d-bdb6-1bc3f10800fe/chess.com_puzzle_rush_rating.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/918e6972-655b-49f0-9fb3-0fe29ef13fea/78480523652.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/03734aa7-255b-42e8-adeb-985e6e8429f8/13568452421.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b19eb915-d151-49a4-b40b-ec8ed5136141/zexogokoluxumobiwu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/891858a1-1ce2-434b-9f02-a46c4587a478/eagoler_chokh_bangla_full_movie.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0001e1bb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1E1BB	5292 bytes
SHA-256: `310652d6ab422068fca90226a69bc492aef898422a84391bac79ba9f5f3e3109`
`font_01_sfnt_off0001f3da.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1F3DA	12224 bytes
SHA-256: `a0232128f65d1b0d3157937e1f60f8612bf7b942c00cc1ad157da3ef3ca70ecb`
`font_02_sfnt_off00021da5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x21DA5	16204 bytes
SHA-256: `c988415812f594187b0a0ed75dc52802e798e1695b49bd300f8412a65040a449`

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