PDF malware analysis — malicious · 0aad83d0fc06ba31

MALICIOUS

PDF

74.8 KB Created: 2020-12-03 14:10:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27

MD5: b04f9d01cb96c3c718ba6639be4b8190 SHA-1: 1971bc39c0e4ed4b5da7c531e0070540a6cff509 SHA-256: 0aad83d0fc06ba31c8f7feea2321c688d46d0766affe4ab42cf1cd97d70d6a4e

214 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF contains multiple embedded links, including a critical redirector link to 'traffking.ru' and a link farm hosted on 'weebly.com'. These heuristics indicate the document is designed to direct users to malicious or potentially unwanted content. The ClamAV detection and ML classifier further support its malicious nature, likely as a phishing or malware distribution vector.

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
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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.
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://traffking.ru/123?utm_term=snaptube+apk+2015+gratis In PDF document text
- https://sapixokevabose.weebly.com/uploads/1/3/4/4/134498139/kokexeje.pdfIn PDF document text
- https://mafopobivo.weebly.com/uploads/1/3/4/3/134322173/solujufuv.pdfIn PDF document text
- https://niruzezigup.weebly.com/uploads/1/3/4/8/134889773/nobibomixisof.pdfIn PDF document text
- https://feleluxotikuko.weebly.com/uploads/1/3/4/3/134338959/xugopapifofab_gunukilurekemi_vobopoju.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4459175/normal_5faaee9b4f17c.pdfIn PDF document text
- https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/0933f.pdfIn PDF document text
- https://viwawisigox.weebly.com/uploads/1/3/4/3/134342504/21c56c2329d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4417807/normal_5f963d6599621.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static1.squarespace.com/static/5fc0e08512facd59ceacd9cd/t/5fc3ab79e6d49a06bb029aa7/1606658937398/pink_polka_dots_background_vector.pdfIn PDF document text
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe04203485235c868c0048/1606288417239/govopiwijat.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc12cb3a13a450babf5d3f9/t/5fc2b8f43485235c862036d1/1606596852456/flarp_noise_putty_removal.pdfIn PDF document text
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbe0e8e18e72e5fdb9e5b15/1606291093884/kimudigojimu.pdfIn PDF document text
- https://static1.squarespace.com/static/5fbffcc36609fd0ee78c2f31/t/5fc193171972c46e3cda48f4/1606521624819/56207737842.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc13e7dd49dd12447366960/t/5fc33446cb3e0f5771b89abf/1606628422839/excel_module_3_lab_1.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc0d3b00b6b03258f353712/t/5fc235fe3f75b166431dab44/1606563326515/67478637190.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc0e6b83dfdd95b60d5131d/t/5fc138d83485235c86f35bf3/1606498520589/rockford_fosgate_amp_punch.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_off0000cf29.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCF29	5712 bytes
SHA-256: `793c4aa967bc1e768675e21171a33482f47ff119c81aae803531b7bb76d915c4`
`font_01_sfnt_off0000e2b0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE2B0	11020 bytes
SHA-256: `70dee915f3fb5cbd48340710c6c22911ea825ebedb77f28a4ea4c25eb6b84a21`
`font_02_sfnt_off00010873.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10873	16168 bytes
SHA-256: `e5458d7b6d82539349b17fc4713a17e1381d471255c72d9f8116b7c86e08c443`

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