PDF malware analysis — malicious · 88375ab73676b541

MALICIOUS

PDF

80.5 KB Created: 2021-05-21 11:48:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23

MD5: e754a525721fac0b0b1e36411c63b472 SHA-1: 227f9b59c6adab28d2150c1f9c159bb06222b86d SHA-256: 88375ab73676b541259debed5bd3ae3acb423200a70f31d7482bc3fa4eba4367

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, with one pointing to 'bologen.ru', suggesting a phishing or malware distribution lure. The PDF structure and embedded links are consistent with techniques used to redirect users to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

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
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://static.s123-cdn-static.com/uploads/4369659/normal_5ffa26c0d5993.pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4408713/normal_603eabf69d82c.pdfIn PDF document text
- https://duxepanakotijek.weebly.com/uploads/1/3/4/3/134340233/kokixogofutuli_jabonunujobar_fidubo_vikenegetugepup.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4486034/normal_605223a18aaa4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4500001/normal_5fd368ea3b540.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4401519/normal_6050fb85ce8b2.pdfIn PDF document text
- https://duresanu.weebly.com/uploads/1/3/5/3/135334900/wigudisuvir.pdfIn PDF document text
- https://bologen.ru/strik?utm_term=%25D0%25B0%25D0%25B4%25D0%25BC%25D0%25B8%25D0%25BD%25D0%25B8%25D1%2581%25D1%2582%25D1%2580%25D0%25B0%25D1%2582%25D0%25B8%25D0%25B2%25D0%25BD%25D0%25B0%25D1%258F+%25D0%25BA%25D0%25BE%25D0%25BD%25D1%2582%25D1%2580%25D0%25BE%25D0%25BB%25D1%258C%25D0%25BD%25D0%25B0%25D1%258F+%25D1%2580%25D0%25B0%25D0%25B1%25D0%25BE%25D1%2582%25D0%25B0+%25D0%25BF%25D0%25BE+%25D1%2580%25D1%2583%25D1%2581%25D1%2581%25D0%25BA%25D0%25BE%25D0%25BC%25D1%2583+%25D1%258F%25D0%25B7%25D1%258B%25D0%25BA%25D1%2583+7+%25D0%25BA%25D0%25BB%25D0%25B0%25D1%2581%25D1%2581+2021+%25D0%25BE%25D1%2582%25D0%25B2%25D0%25B5%25D1%2582%25D1%258BIn PDF document text
- https://bologen.ru/strik?utm_term=%25D0%25B0%25D0%25B4%25D0%25BC%25D0%25B8%25D0%25BD%25D0%25B8%25D1%2581%25D1%2582%25D1%2580%25D0%25B0%25D1%2582%25D0%25B8%25D0%25B2%25D0%25BD%25D0%25B0%25D1%258F+%25D0%25BA%25D0%25BE%25D0%25BD%25D1%2582%25D1%2580%25D0%25BE%25D0%25BB%25D1%258C%25D0%25BD%25D0%25B0%25D1%258F+%25D1%2580%25D0%25B0%25D0%25B1%25D0%25BE%25D1%2582%25D0%25B0+%25D0%25BF%25D0%25BE+%25D1%2580%25D1%2583%25D1%2581%25D1%2581%25D0%25BA%25D0%25BE%25D0%25BC%25D1%2583+%25D1%258F%25D0%25B7%25D1%258B%PDF link annotation
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/resisuna/54240387172.pdfIn PDF document text
- https://s3.amazonaws.com/jipowumat/array_java_tutorial.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9fb37d4d-b3ba-4cf4-ab15-ffdf50890ce5/practice_guidelines_borderline_personality_disorder.pdfIn PDF document text
- https://s3.amazonaws.com/veraxawewib/carry_on_bag_policy_spirit.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/376eac21-2aaa-4c6b-bdba-e95cf7862c1d/muse_unintended_tab.pdfIn PDF document text
- https://s3.amazonaws.com/warapagefasovi/98738557167.pdfIn PDF document text
- https://s3.amazonaws.com/nagev/easa_aircraft_performance_classification.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/31acd6a9-2fe2-46cf-8d46-980cbb50310c/lego_star_wars_coloring_pages.pdfIn PDF document text
- https://s3.amazonaws.com/bepukuba/xabanisasoz.pdfIn PDF document text
- https://s3.amazonaws.com/bevekizadoxuj/78388197068.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_off0000e8d1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE8D1	6692 bytes
SHA-256: `3f18b3bd16fbea993d07cdc782a85d3292274b91dae9094de3208eaf111131d1`
`font_01_sfnt_off0000ff24.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFF24	15968 bytes
SHA-256: `4de13d23f3faa4ec3ece064c6fb73b5b92e008321ac1aea0322191140beefea3`

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