PDF malware analysis — malicious · e9b99d76ad9edbca

MALICIOUS

PDF

53.5 KB Created: 2020-10-16 05:40:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10

MD5: 80ff2785d8ad665bafe1e6c925965fe2 SHA-1: a026b6c41e906c31b8852796bc22b6ab0c1dd367 SHA-256: e9b99d76ad9edbcaa8a82fc72a34fa7e1126b71bd5c2ae4e59fc28db3ac1fa96

184 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9999

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://gettraff.ru/pify?keyword=bangla+rannar+boi+pdf+download In PDF document text
- https://cdn-cms.f-static.net/uploads/4365621/normal_5f88707f4f69e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367621/normal_5f87c535a7dff.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369794/normal_5f8809f58a52b.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365661/normal_5f87348ca4ecc.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365591/normal_5f87019302039.pdfIn PDF document text
- https://tavumake.weebly.com/uploads/1/3/2/7/132740551/dotiravufarad-tikomixeboluxal-lapav.pdfIn PDF document text
- https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/vanojiraxajerubefiza.pdfIn PDF document text
- https://zoxuzuxebexot.weebly.com/uploads/1/3/0/9/130969059/4d5351fbb209c0.pdfIn PDF document text
- https://jukafubu.weebly.com/uploads/1/3/0/8/130874261/nuvaw-kekido-ligudajo.pdfIn PDF document text
- https://nikokabiliru.weebly.com/uploads/1/3/1/4/131409463/bilejuralipesim.pdfIn PDF document text
- https://site-1040131.mozfiles.com/files/1040131/98451258936.pdfIn PDF document text
- https://site-1044151.mozfiles.com/files/1044151/9438447254.pdfIn PDF document text
- https://site-1040764.mozfiles.com/files/1040764/85175421823.pdfIn PDF document text
- https://site-1039878.mozfiles.com/files/1039878/pujoxukulog.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366340/normal_5f870db5a93cd.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366359/normal_5f889f3f67c9e.pdfIn PDF document text
- https://lokixesope.weebly.com/uploads/1/3/1/6/131607163/329edfe.pdfIn PDF document text
- https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/5644f9eb0f27e.pdfIn PDF document text
- https://wepugimi.weebly.com/uploads/1/3/1/0/131070973/biride.pdfIn PDF document text
- https://site-1038715.mozfiles.com/files/1038715/27173152753.pdfIn PDF document text
- https://site-1042884.mozfiles.com/files/1042884/top_puzzle_games_apk.pdfIn PDF document text
- https://site-1048221.mozfiles.com/files/1048221/doxogorebokigazeruk.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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
- http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
- http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006a95.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6A95	5312 bytes
SHA-256: `6b5d985e280524ef72af073e2b64ef2f43f84a27cf2a151f724c501255b8e61f`
`font_01_sfnt_off00007cb7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7CB7	3720 bytes
SHA-256: `d0c9e33916e9e64e42e31bcf0d345f6c2fcd41735b1a34df0119bd0eb1094281`
`font_02_sfnt_off0000881b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x881B	13680 bytes
SHA-256: `dd8ede3f73c39486402c344230f5383523ae9a0b5f72bf0b9bfe8c51df814605`
`font_03_sfnt_off0000b2dc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB2DC	16092 bytes
SHA-256: `39b2f4b99ee08965fd4836f89f628a00cde8346cb181131bba0308e80db8fb67`

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