PDF malware analysis — malicious · efca76c697f920a2

MALICIOUS

PDF

47.4 KB Created: 2020-10-29 10:47:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23

MD5: c09c661449cbc67434bd1c9c666bd9d2 SHA-1: 13033402a656fe4b904028c64d587ee0785cf7bb SHA-256: efca76c697f920a2f91cacc2104da1755e8820d01b60aa37716cae537a0e2812

184 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

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.
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.
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://ttraff.me/123?keyword=hay+day+cheats+for+land+deeds In PDF document text
- https://cdn-cms.f-static.net/uploads/4365652/normal_5f872089cacdc.pdfIn PDF document text
- https://judiwufafa.weebly.com/uploads/1/3/3/9/133999980/wugejoxigif.pdfIn PDF document text
- https://tidemipevu.weebly.com/uploads/1/3/0/7/130740592/f47f5.pdfIn PDF document text
- https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/8279107.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369190/normal_5f9100a556acd.pdfIn PDF document text
- https://dubuzosokiboxof.weebly.com/uploads/1/3/1/1/131163723/6588788.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381098/normal_5f95c2e4c02b3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4384160/normal_5f8e3cb3ee03f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4403129/normal_5f9a6840b7520.pdfIn PDF document text
- https://jelamiwigu.weebly.com/uploads/1/3/1/3/131382248/zuxozit.pdfIn PDF document text
- https://togitarusufojir.weebly.com/uploads/1/3/2/6/132681229/6dd5746e6360c44.pdfIn PDF document text
- https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/9973104.pdfIn PDF document text
- https://mojipolizu.weebly.com/uploads/1/3/4/3/134318612/fugotuga.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4408976/normal_5f95eda3ea749.pdfIn PDF document text
- https://buliduxefexefux.weebly.com/uploads/1/3/1/6/131636978/d8771846ed27a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4393889/normal_5f912616c8e45.pdfIn PDF document text
- https://juzugimigiroteg.weebly.com/uploads/1/3/2/3/132302883/7748485.pdfIn PDF document text
- https://xinufagepowe.weebly.com/uploads/1/3/4/4/134437511/ca6c766a10580.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378175/normal_5f90747cab0fc.pdfIn PDF document text
- https://fuparududewon.weebly.com/uploads/1/3/1/8/131856041/674536.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/vitelitubovuluj/reaction_practice_worksheet_1_answers.pdfIn PDF document text
- https://s3.amazonaws.com/gofilafixu/introduction_to_c_programming_tutorial_point.pdfIn PDF document text
- https://s3.amazonaws.com/gifiz/70994208797.pdfIn PDF document text
- https://s3.amazonaws.com/sugaguxagu/79764528768.pdfIn PDF document text
- https://s3.amazonaws.com/zuxadol/66075901477.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000690b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x690B	5172 bytes
SHA-256: `beddc17e9a96549e59055443aede8c90594121b8b48f1c25d0b50b5f9783cf85`
`font_01_sfnt_off00007a9f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7A9F	4424 bytes
SHA-256: `cdb569d64a45e20691963919606766ed52193c7ed1f81532668c4d536c5af86e`
`font_02_sfnt_off00008a51.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A51	11240 bytes
SHA-256: `e75f23e7328a18b327337f037407b0fe31fc47c8a4858d5bc6464795249366e1`

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