PDF malware analysis — malicious · fc1517265328de46

MALICIOUS

PDF

65.2 KB Created: 2020-11-04 22:21:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15

MD5: 2b3aec9da4de2e64998d50d66751a3e4 SHA-1: 3619756c9d7baa14e990edefb9497acc49130268 SHA-256: fc1517265328de46d78c6a29251f3c055800692a1984f6c69065bb1a0466073d

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=nwea+map+correlation+chart+2015 In PDF document text
- https://tivurenufetoza.weebly.com/uploads/1/3/4/2/134235987/5e4715ce603e87.pdfIn PDF document text
- https://farigelud.weebly.com/uploads/1/3/4/2/134266281/2066a66b1d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426812/normal_5f9e1eef77300.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378167/normal_5f916572b54f9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366343/normal_5f8781773d1b5.pdfIn PDF document text
- https://varipejat.weebly.com/uploads/1/3/0/7/130739080/lexinolobir_fusimudowod_mizuvopamerax_ruwilixarew.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374521/normal_5f94a47fa0859.pdfIn PDF document text
- https://moxitasa.weebly.com/uploads/1/3/1/4/131454719/5f243.pdfIn PDF document text
- https://lajibomigijiku.weebly.com/uploads/1/3/4/5/134587714/09cb9df327.pdfIn PDF document text
- https://pakedarisibibo.weebly.com/uploads/1/3/4/5/134501134/5d649967a3d744.pdfIn PDF document text
- https://jatilesaza.weebly.com/uploads/1/3/4/3/134316516/voxusal.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4378845/normal_5f90f42d4df60.pdfIn PDF document text
- https://kusebedanosude.weebly.com/uploads/1/3/1/1/131163667/4331547.pdfIn PDF document text
- https://voteriboxovoviv.weebly.com/uploads/1/3/4/3/134352377/c1db4e92.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://uploads.strikinglycdn.com/files/ecd4ab59-336e-460a-a069-0402c79cae45/zagotupabirunaruzigijaf.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c739cac1-07d6-43e3-a959-9f8cf4c8c8a3/vezubuwetutulavivigejepo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d85ece0b-b0f2-48ab-932d-c229e552f59a/kizik.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e2933425-2a38-4ec7-9f0a-56673f6e5234/18001867953.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_006_off0000bfe3.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0xBFE3	24212 bytes
SHA-256: `9a1becf2064f316a954beb65850c03988f2eba846e6089dedabb7e2ed3ca3579`
`font_00_sfnt_off0000891c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x891C	5296 bytes
SHA-256: `06eeaea65d9b330680dbcc2f56db13f275c51d2888e0baa8e87f338ec3717dc8`
`font_01_sfnt_off00009b04.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9B04	10784 bytes
SHA-256: `49ae3b11ebafe239a97efcfed08d623362934ed5396a87b3826a10154954f0e3`
`font_03_sfnt_off0000e8da.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE8DA	4324 bytes
SHA-256: `b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c`

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