PDF malware analysis — malicious · 345e674c4e7b4531

MALICIOUS

PDF

47.9 KB Created: 2020-10-14 16:49:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10

MD5: 2199cfe8e9807ec5e3e4bce8f2624807 SHA-1: 26af7ffffd63340fa121a0669c32d26f6bac0399 SHA-256: 345e674c4e7b45316c117c7441301b15ac5303b06a05a52d789eea536f34c2e3

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/pify?keyword=siemens+nx+10+tutorial+pdf In PDF document text
- https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/safado-fodidunixoso.pdfIn PDF document text
- https://fijojonibiw.weebly.com/uploads/1/3/2/6/132681787/vifotatilaw.pdfIn PDF document text
- https://narogigadi.weebly.com/uploads/1/3/0/8/130874066/c2099e721b.pdfIn PDF document text
- https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/ruxozukozuvazu.pdfIn PDF document text
- https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/1d44b872.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366044/normal_5f86f8a953408.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366050/normal_5f86f57fd9627.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365659/normal_5f86fb9a1c656.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366044/normal_5f86f9047cadb.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365552/normal_5f86f5e3e7ffd.pdfIn PDF document text
- https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/09b03b.pdfIn PDF document text
- https://gevafitasib.weebly.com/uploads/1/3/1/3/131380901/a7b88.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366010/normal_5f86f4371c5ed.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365525/normal_5f86f52db2a02.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365621/normal_5f86fc62d4ea6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365580/normal_5f86f5b74122a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365586/normal_5f8700afea0cd.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://cdn.shopify.com/s/files/1/0436/2865/8848/files/lake_johnson_raleigh_kayaking.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0497/6479/4522/files/wupubujesogelajudolo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5144/1563/files/which_answer_shows_4-21_16_in_logarithmic_form.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9901/2763/files/imperial_armour_index.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6291/0376/files/lolawaka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0501/5925/5717/files/uber_eats_receipt.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6395/7909/files/11149509010.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_off00006f16.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6F16	5436 bytes
SHA-256: `af7d133d462e9b28345624462eae4c4c1d8bf8be9b17053e094d64aeb6fe4852`
`font_01_sfnt_off00008172.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8172	10004 bytes
SHA-256: `1b8d67f10a5b784f923dfd65bb4e6ebfd3a5ae4c08cfd8d503e5f193ac789a54`
`font_02_sfnt_off0000a39c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA39C	4324 bytes
SHA-256: `d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378`

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