PDF malware analysis — malicious · 30e8e017e99919d8

MALICIOUS

PDF

85.7 KB Created: 2021-03-13 16:47:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25

MD5: 8da6fa3329cbb30d8390ef19f3c6a3c8 SHA-1: d535f611dd42bad6410123412e9387742d964f6c SHA-256: 30e8e017e99919d89b5764192b7d8106d56c5bb99b1d3f74f900ecebd39b4914

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI pointing to a suspicious domain, identified as a link farm on disposable hosting. ClamAV and ML classifiers also flagged this PDF as malicious, specifically indicating phishing and trojan characteristics. The document body, though heavily obfuscated, contains references that could be interpreted as lures, such as 'american racer 2 game'. The presence of external URIs suggests an attempt to redirect the user to a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

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 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://ponafet.ru/wix?keyword=american+racer+2+game PDF link annotation
- https://static.s123-cdn-static.com/uploads/4454051/normal_6008b1211c399.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4388611/normal_5fe32070d03df.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4422879/normal_5fe6873b66264.pdfIn PDF document text
- https://cdn.sqhk.co/pugijuzo/ghgjieL/starfish_story_quote.pdfIn PDF document text
- https://xejevegufukax.weebly.com/uploads/1/3/0/9/130969627/2779775.pdfIn PDF document text
- https://vowabogebem.weebly.com/uploads/1/3/0/7/130775978/2b407.pdfIn PDF document text
- https://cdn.sqhk.co/nepajenine/ehbgfR1/2015_dodge_dart_rallye_specs.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4490256/normal_5fde04236d2b2.pdfIn PDF document text
- https://keminozabigorez.weebly.com/uploads/1/3/4/8/134886120/156c1.pdfIn PDF document text
- https://cdn.sqhk.co/xanapaje/ggcyhet/deltec_homes_mars_hill_nc.pdfIn PDF document text
- https://notojusuwetu.weebly.com/uploads/1/3/1/8/131871856/2935246.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://cf62593c-3f62-494e-9ef9-3c2a63ead7d7.filesusr.com/ugd/93dae2_09f33a590efd49f6b728d5ce47b2c7d6.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/bisegilupuf/how_much_does_it_cost_to_become_a_registered_medical_assistant.pdfIn PDF document text
- http://bosewavim.rf.gd/84525674388.pdfIn PDF document text
- http://karelovaluz.epizy.com/93685746736.pdfIn PDF document text
- https://a9f3490c-def6-45ea-9957-aefa341d54bd.filesusr.com/ugd/84b587_bbc5bbcaf39640a49250b0bc481541d6.pdf?index=trueIn PDF document text
- https://df9240ce-57b4-430e-a582-521170ca5232.filesusr.com/ugd/10b03a_6d94bfc4f7a54f45930e7349b8847d96.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/tixedujegibex/vosojizudogovenigag.pdfIn PDF document text
- https://s3.amazonaws.com/xakapudakadu/xiwefowatedokelo.pdfIn PDF document text
- https://s3.amazonaws.com/sajatofubote/xukodiwiminar.pdfIn PDF document text
- https://2efabd41-1f95-43d0-8245-5f8eb9267247.filesusr.com/ugd/2f4ddf_87d16e7866254256bc758259b66ca868.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/bibejovixapis/xepovir.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_off000103f3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x103F3	4628 bytes
SHA-256: `9dffd65441e37ea40aebbe4e34e5b9d2c3113db0e989af02b6355e0156631bb4`
`font_01_sfnt_off00011374.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11374	11896 bytes
SHA-256: `644efd205bc33e01f9c5f07069ba1e07228056b8ef38045ab59aa9886c63feec`
`font_02_sfnt_off00013ae6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x13AE6	4324 bytes
SHA-256: `05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176`

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