PDF malware analysis — malicious · 6fce87a23d2ef36f

MALICIOUS

PDF

46.9 KB Created: 2020-10-20 06:40:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04

MD5: 19161bf4ae995329f691e5f6a40b2316 SHA-1: e67d2b873a2a745d0e158f23a1a1ab05f0c3d84a SHA-256: 6fce87a23d2ef36f89c44a39c94ff7611441df1c65a81223b8118de1b407401a

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=format+factory+apk+free+download+for+pc In PDF document text
- https://keniwuki.weebly.com/uploads/1/3/1/4/131483234/bf4458.pdfIn PDF document text
- https://rabexowubomisuw.weebly.com/uploads/1/3/1/4/131407155/0b296aa39bf.pdfIn PDF document text
- https://fopimakalegej.weebly.com/uploads/1/3/0/7/130738542/losugaj.pdfIn PDF document text
- https://meboguvogo.weebly.com/uploads/1/3/1/4/131437667/1018917.pdfIn PDF document text
- https://mufalugibesenu.weebly.com/uploads/1/3/1/4/131453255/vonemisakexexim_kufagibopolinu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367951/normal_5f8b9b43bed03.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365594/normal_5f87136c660c6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365589/normal_5f86fec5c585d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379601/normal_5f8e3c66eb2b4.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366395/normal_5f88ab0997e55.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4373526/normal_5f8d5ce2df09b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4368222/normal_5f8a00ac012a9.pdfIn PDF document text
- https://jixepelisu.weebly.com/uploads/1/3/2/6/132695865/2255345.pdfIn PDF document text
- https://jusujonolixutuw.weebly.com/uploads/1/3/1/3/131379247/mitisikinemaxan.pdfIn PDF document text
- https://zadumeredevasax.weebly.com/uploads/1/3/1/4/131453870/a7405e2b5148652.pdfIn PDF document text
- https://xikosenazegan.weebly.com/uploads/1/3/0/7/130739601/gupap.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/1/0462/3669/6725/files/is_bytefence_safe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0499/7749/1618/files/lathe_machine_parts_and_function.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0495/7208/5926/files/53910633490.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0500/0190/3766/files/manual_motor_de_popa_yamaha_40_hp.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0134e51f-62d8-4847-9afc-56e6a4bd0cda/51040064845.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f75ae627-eb92-488b-8eb1-14449040bf46/stump_root_device_is_patched.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/654dbe1f-2f8a-4e25-a2f3-5a3bedee2042/57446225784.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_off00006bfd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6BFD	5076 bytes
SHA-256: `b13fbcd54da2af468ac7f14e28a567f8de40e5a8063b3552673066502ace8c40`
`font_01_sfnt_off00007d46.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7D46	10160 bytes
SHA-256: `00d27c1c6d2e3779030d713e042697e2e0c55c6ce5cc485af541759e67aedd5c`
`font_02_sfnt_off0000a01a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA01A	4324 bytes
SHA-256: `d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378`

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