PDF malware analysis — malicious · 9004d67214e1ffaa

MALICIOUS

PDF

50.4 KB Created: 2020-10-25 19:43:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23

MD5: 9bb2b42824e0cd7839478b883ff1953c SHA-1: ca3566dc975ae11447372c76ea4c0b689304a0fd SHA-256: 9004d67214e1ffaa5fb41707e3775d011c67ce457c6d03459b8ae0ab189e6935

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=definitions+of+teacher+pdf In PDF document text
- https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/4041939.pdfIn PDF document text
- https://vogemafebin.weebly.com/uploads/1/3/4/2/134235603/wuwojenegenemu.pdfIn PDF document text
- https://wugovokida.weebly.com/uploads/1/3/4/3/134319073/3023117.pdfIn PDF document text
- https://jederatikepu.weebly.com/uploads/1/3/4/3/134370591/918045.pdfIn PDF document text
- https://wazajodowefode.weebly.com/uploads/1/3/4/0/134017502/begalatetag.pdfIn PDF document text
- https://sutogibigasoju.weebly.com/uploads/1/3/1/0/131070189/2163499.pdfIn PDF document text
- https://pisanofinupu.weebly.com/uploads/1/3/1/4/131437881/bixememofoju.pdfIn PDF document text
- https://vevejeda.weebly.com/uploads/1/3/0/7/130776099/satekusaro-wigipisafex-badar.pdfIn PDF document text
- https://rilebowiteb.weebly.com/uploads/1/3/3/9/133986594/gabowawijefumikazame.pdfIn PDF document text
- https://kubupukadumu.weebly.com/uploads/1/3/1/3/131382740/fetewafokapujojajum.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/e7f552bd-66b3-4e1f-b753-7e30d6e0ce9b/1094157476.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/dd0df7da-a731-4b59-ba83-9510cc77eb87/2207594421.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/17a1bba5-e0ba-44f6-9026-f1079d324891/11780900413.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/df158e73-9c4b-4c6f-8c30-432c7a2d49e1/download_programs_to_calcualtor_ti_8.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3bcd2eb6-22ad-42e8-a822-f1a0a0dafd9a/bafije.pdfIn PDF document text
- https://s3.amazonaws.com/henghuili-files2/keravevolixej.pdfIn PDF document text
- https://s3.amazonaws.com/henghuili-files2/sofimemole.pdfIn PDF document text
- https://s3.amazonaws.com/nopomewegobij/88404889874.pdfIn PDF document text
- https://s3.amazonaws.com/jiwisigetizoxif/ashab_e_kahf_story_in_urdu_download.pdfIn PDF document text
- https://s3.amazonaws.com/turip/zapom.pdfIn PDF document text
- https://s3.amazonaws.com/pazifetanegapu/89676167083.pdfIn PDF document text
- https://s3.amazonaws.com/jesidofefe/bekolixedisi.pdfIn PDF document text
- https://s3.amazonaws.com/daselex/sixek.pdfIn PDF document text
- https://s3.amazonaws.com/zuxadol/kvs_offline_admission_form.pdfIn PDF document text
- https://s3.amazonaws.com/bupaxomu/83337364569.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_off0000793c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x793C	5000 bytes
SHA-256: `8c593525588beda735902382ecef7d0810c304a4eb3e5111eb1b3a8f95f86eb0`
`font_01_sfnt_off00008a34.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A34	10396 bytes
SHA-256: `fb5b8baea3b54961ac668dc2160eeaa1fd32243f1a9898681d19037668cfdc7c`
`font_02_sfnt_off0000adb6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xADB6	4324 bytes
SHA-256: `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`

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