PDF malware analysis — malicious · 6b0d3de28fe008a6

MALICIOUS

PDF

75.9 KB Created: 2021-04-09 08:46:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23

MD5: 07778eeb14a9c7747763ea930a9be47e SHA-1: 9605fd8dfb364cc77023ad788bff528366b300b3 SHA-256: 6b0d3de28fe008a69c9d53a32aef8b0b5207d8beb222d9b47bd5cfa68754d447

184 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, with one prominent URL pointing to a suspicious domain, likely intended to redirect users to a phishing or malware-hosting site. The presence of PDF-specific heuristics like 'PDF_SEO_LINK_FARM' suggests an attempt to create a link farm for SEO manipulation or to host malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 7

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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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://midufefew.ru/strik?utm_term=polycom+soundstation+2+power+adapter PDF link annotation
- https://sejukato.weebly.com/uploads/1/3/4/0/134018084/wipizamofanaxu-lujigugime-jomosepoxife-pewatekojajefa.pdfIn PDF document text
- http://tolenamesakeraw.22web.org/95396691593.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369519/normal_6032866f19bde.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4389581/normal_5fde7b47306de.pdfIn PDF document text
- http://vuzopozakobepe.22web.org/56979810458.pdfIn PDF document text
- https://wovukevaz.weebly.com/uploads/1/3/4/5/134523328/b30b93a.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/kobivimelelo/21646418127.pdfIn PDF document text
- https://s3.amazonaws.com/jadere/gulzaar_chhaniwala_kasoote_2_mp4.pdfIn PDF document text
- https://s3.amazonaws.com/rufonali/chichewa_bible_apk.pdfIn PDF document text
- https://s3.amazonaws.com/rojalexipokadaz/3x3_matrix_determinant_worksheet.pdfIn PDF document text
- https://s3.amazonaws.com/fadupazageraf/sodarerijitiwipotu.pdfIn PDF document text
- https://e25b5f36-ee09-4010-8803-019b2853a23b.filesusr.com/ugd/c34eac_78263fff4f42489c982110884bdbd235.pdf?index=trueIn PDF document text
- http://doledetaxezo.epizy.com/gloomy_manor_piano_sheet.pdfIn PDF document text
- http://kuwitupufori.rf.gd/linear_equations_and_inequalities_in_one_variable_worksheets.pdfIn PDF document text
- https://1a447ccf-a6a5-490c-ad31-399ae8169532.filesusr.com/ugd/cf5184_924bfe12d45c4d67af4711046777726a.pdf?index=trueIn PDF document text
- https://13adc596-845f-4f4a-b539-e2c04a0a4b5a.filesusr.com/ugd/6e2da7_67d330367e4b4165a74926507ba40dae.pdf?index=trueIn PDF document text
- http://bazusokilole.rf.gd/80665065068.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_off0000d22d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD22D	5544 bytes
SHA-256: `0fb9ca1e225c4112b249c92ec0ea96341b5b93339ba411538cea0c1fdcfd2d4d`
`font_01_sfnt_off0000e510.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE510	11104 bytes
SHA-256: `d27d8f07e1e893d6f97c853683eee2760f14392666ce5f3807f0d1fc59b9540a`
`font_02_sfnt_off00010b4b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10B4B	16164 bytes
SHA-256: `6e3fbd491d8b71441998836ddca0d0c102716a221ea14f8143929167ad9a79b3`

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