PDF malware analysis — malicious · aedbb9b44e8f7462

MALICIOUS

PDF

80.5 KB Created: 2021-02-15 16:41:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04

MD5: 1e27e33b31aa4f7df2932a0bd6f138e7 SHA-1: 6b367fa49105a7360cdffb06f16ac8b400e0d716 SHA-256: aedbb9b44e8f746279ff066d22ee9bdb082e4d2a2944359e4e3ba9b8f1dafebf

186 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was identified as malicious by multiple heuristics and a machine learning classifier, specifically flagged as a phishing trojan. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or SEO manipulation tactic. The primary purpose appears to be redirecting users to potentially harmful content hosted across these numerous URLs.

Machine Learning

Nyx PDF Classifier malicious score 0.9996

Heuristics 6

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.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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://baarspo.ru/wix?keyword=mercury+25+hp+2+stroke+manual+pdf PDF link annotation
- https://cdn.sqhk.co/resilano/jdgdigI/american_motorcycle_racing_association_2019_schedule.pdfIn PDF document text
- https://darizifipofoluw.weebly.com/uploads/1/3/2/8/132815181/cdbf8aa52828.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4450351/normal_600383add5a1a.pdfIn PDF document text
- https://nebelifufenav.weebly.com/uploads/1/3/1/4/131437331/pasitukale-kixoje.pdfIn PDF document text
- https://cdn.sqhk.co/movozuba/dAhhXrI/42590074833.pdfIn PDF document text
- https://rigegafotu.weebly.com/uploads/1/3/0/7/130740045/8bde1454dd5e7.pdfIn PDF document text
- https://lajutiruwogow.weebly.com/uploads/1/3/4/5/134585316/xosakolubufit_fazini_romozososo.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4372378/normal_6024321ea58ea.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4444102/normal_5fd63643836b5.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4369160/normal_5ff764cd93ac2.pdfIn PDF document text
- https://cdn.sqhk.co/fivuwunar/Hjjibhe/colorfy_colouring_book_for_adults_free.pdfIn PDF document text
- https://rubexanow.weebly.com/uploads/1/3/5/3/135346757/futer.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377717/normal_5fe92cc7073f3.pdfIn PDF document text
- https://tezifotunojoke.weebly.com/uploads/1/3/0/7/130776805/a3c0ee.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4371790/normal_5ffbba8381567.pdfIn PDF document text
- https://cdn.sqhk.co/visesefider/jciggf1/wiguz.pdfIn PDF document text
- https://fisadurubimu.weebly.com/uploads/1/3/1/4/131409264/fdc450f.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4451736/normal_5ff225e8b1aec.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4365646/normal_5ff136af17e4e.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/tesapibebujep/rmit_endnote_libguide.pdfIn PDF document text
- https://s3.amazonaws.com/zamemigojat/bmat_section_2_answer_sheet.pdfIn PDF document text
- https://s3.amazonaws.com/mukut/bell_bottom_movie_video_song.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_off0000fab8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xFAB8	5824 bytes
SHA-256: `ddd386fa6ff0b41e6cbbf59f93972bbc961dc2a0fa7e4b2b251e0c9686f5d744`
`font_01_sfnt_off00010e74.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10E74	11520 bytes
SHA-256: `c335dc3d20735b5a32dcc07791e472e2e69d3529eaa06632ba8899f24c1eb573`

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