PDF malware analysis — malicious · 29f53c5d33881bd1

MALICIOUS

PDF

38.5 KB Created: 2020-10-31 04:00:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22

MD5: 5ea1c6ce0eed09634cfc27bfa4469821 SHA-1: 1a197b08d4213634b6ac4568ac1828fd0176ade7 SHA-256: 29f53c5d33881bd19a2db88ad4dee5cd016e6770d165d5d7c15962010fd5e875

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a malicious redirector link pointing to 'ggtraff.ru', which is flagged as malicious. The document body, though heavily obfuscated, contains the same URL. The presence of embedded URLs and the ML classifier's high confidence indicate a malicious intent to redirect the user to a potentially harmful site, likely for phishing or malware distribution. No scripts were extracted from this sample.

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.
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://ggtraff.ru/wb?keyword=esquema%20de%20insulina%20glargina%20pdf In PDF document text
- https://dixaxotobaba.weebly.com/uploads/1/3/4/3/134377978/6911547.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374196/normal_5f8b66e95f881.pdfIn PDF document text
- https://bujegeti.weebly.com/uploads/1/3/4/3/134355457/bevatipaj_budofadevogasad.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/numegubowalonan/pijebubuwokebipabuvim.pdfIn PDF document text
- https://s3.amazonaws.com/vitelitubovuluj/u_bahn_plan_berlin_2017.pdfIn PDF document text
- https://s3.amazonaws.com/xalasawu/dojukidorovopunebunolelup.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/378bc3c9-bc0e-491d-a34f-bee329f0fcf6/31151940526.pdfIn PDF document text
- https://s3.amazonaws.com/xanebavifamopez/noxojizigexafunenimasomu.pdfIn PDF document text
- https://s3.amazonaws.com/bisute/sony_alpha_a5100_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0503/6664/4384/files/factory_reset_android_from_computer.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_off00005699.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5699	5444 bytes
SHA-256: `6b8b0afd7429756092911d2e6f80e650647f4211a9e3dee5fbf8ff919c720849`
`font_01_sfnt_off000068ff.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68FF	10708 bytes
SHA-256: `ea6dc23e2e64af28534cd486814f6933a1e7cdc7578343ea096fb7deabd37980`

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