PDF malware analysis — malicious · d20a587510ef0b3a

MALICIOUS

PDF

46.0 KB Created: 2020-08-09 15:28:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 05df2edcaf06f56bdc42066aa294db6d SHA-1: 4244da4159347c948d23c52c1932478b2a00dffc SHA-256: d20a587510ef0b3aeffd23c41a6190caf545f012468a2e2c8497fa70268c3ebe

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body, though partially corrupted, includes the text 'Dieta para hernia de hiato pdf' and the malicious URL, suggesting a lure to a site offering information on this topic. The presence of a link farm heuristic further supports the malicious intent of directing users to external, potentially harmful, resources.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

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.
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://ttraff.cc/pify?keyword=dieta+para+hernia+de+hiato+pdf
- http://gufozas.natpaton.com/uploads/1/3/1/4/131437987/zutorawus_tonekulemoxaje_debifiwipokef_zavexulas.pdf
- http://files.longfordhospicehomecare.com/uploads/1/3/2/6/132681891/nefujezeferesijaj.pdf
- http://files.paragonmedia.tv/uploads/1/3/0/9/130969652/sakixatopus.pdf
- http://suwakavo.ourcollaborativeteam.com/uploads/1/3/0/8/130874493/c9aadd8.pdf
- http://files.ayres3d.com/uploads/1/3/0/8/130874671/31e15.pdf
- https://cdn.shopi
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8402105605.pdf
- https://cdn.shopify.com/s/files/1/0440/8731/2534/files/assignment_problem_solved_examples.pdf
- https://cdn.shopify.com/s/files/1/0447/1370/5625/files/reflection_and_refraction_worksheet_4th_grade.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pobilimej.pdf
- https://cdn.shopify.com/s/files/1/0427/8976/5276/files/pobodo.pdf
- https://cdn.shopify.com/s/files/1/0437/0595/8565/files/nekajufezolak.pdf
- https://cdn.shopify.com/s/files/1/0431/8897/7813/files/53055066319.pdf
- https://cdn.shopify.com/s/files/1/0437/3587/5745/files/15171675569.pdf
- https://cdn.shopify.com/s/files/1/0431/6617/1285/files/exercice_sur_les_animaux_en_francais.pdf
- https://cdn.shopify.com/s/files/1/0430/2677/6227/files/senudulorigefizoruf.pdf
- https://cdn.shopify.com/s/files/1/0439/8402/7806/files/98118049290.pdf
- https://cdn.shopify.com/s/files/1/0430/4764/9429/files/guvuzix.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000073d5.bin` `4a5e2c2fbde5c29ea6fac61437dc7b9c908a0ca7702f3d4059a94b2b39418eea`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x73D5	4920 bytes
`font_01_sfnt_off00008496.bin` `bd54fa5b1d7008b42ef582f43e35efc533bbf15e87c37eff88d1c791c4b18eda`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8496	11328 bytes

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