PDF malware analysis — malicious · 4ccd2338cc5cb018

MALICIOUS

PDF

41.4 KB Created: 2020-11-07 05:51:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23

MD5: 73a6edf0fa600143914508fff026f1b7 SHA-1: 5226241a9c05956195d8e5dc1326a95961b6d403 SHA-256: 4ccd2338cc5cb018658f462e6205c3f559ad4f05a860c8cc20b09bf729cc7d39

86 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

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.
QR-code redirect lure medium SE_QR_LURE

Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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://trafffe.ru/123?keyword=download+messenger+apk+free PDF link annotation
- https://kokubexajaluk.weebly.com/uploads/1/3/2/6/132681668/pafiduwofogibuvelis.pdfIn PDF document text
- https://bizavurodetilu.weebly.com/uploads/1/3/4/3/134391156/c10b2c1.pdfIn PDF document text
- https://babikovinemixe.weebly.com/uploads/1/3/1/8/131856339/voxexini.pdfIn PDF document text
- https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/e2b1cf49a3.pdfIn PDF document text
- https://niginijepajenok.weebly.com/uploads/1/3/4/5/134505752/7180336.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/fekaduvopigab/98249622350.pdfIn PDF document text
- https://s3.amazonaws.com/samopakamefap/daily_oral_language_high_school_with_answers.pdfIn PDF document text
- https://senaxaxibele.files.wordpress.com/2020/11/kumujeban.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/45095373-3195-4c8e-9503-2c0c2bd8da28/don_king_kong_snes_completeroms.com.pdfIn PDF document text
- https://s3.amazonaws.com/limewub/free_robux_apk_file_download_2019.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_off000064a8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64A8	5516 bytes
SHA-256: `48629f44f52bd8da0fab500d4a0b4d6f08d977841fc301a92ef9d5f1322c6fd8`
`font_01_sfnt_off0000776f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x776F	9736 bytes
SHA-256: `171dd2915ad617e424da044ee2b4025c8a3894cf5829d6ba50dd5416d8769197`

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