PDF malware analysis — malicious · 9dc158e2f6dd441f

MALICIOUS

PDF

75.6 KB Created: 2021-03-09 18:59:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22

MD5: d6af243130a4865d2838ddd651454046 SHA-1: 89498f1d320eb5363dc20ed48c7322c3034f93e9 SHA-256: 9dc158e2f6dd441fad06e0bef17db371b14180017068735e6da222e0af57b4f8

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document contains numerous external URIs, including one pointing to 'golowaki.ru' with a query parameter suggesting a lure related to 'aadhar card pdf open'. The presence of embedded URLs and the overall structure indicate an attempt to redirect the user to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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.
External URI info PDF_URI

PDF contains an external URL action
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://golowaki.ru/123?utm_term=aadhar+card+pdf+open PDF link annotation
- https://cdn.sqhk.co/dabozijide/QIhbZSx/weekend_away_deals_uk.pdfIn PDF document text
- https://cdn.sqhk.co/tinipuded/ijijjAE/download_hot_wheels_mod_apk_unlimited_money.pdfIn PDF document text
- https://cdn.sqhk.co/pifizumux/xhQjhib/25462219676.pdfIn PDF document text
- https://cdn.sqhk.co/zizaratijiga/jguEsid/27120671187.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4470526/normal_5ff2f7c10ba24.pdfIn PDF document text
- http://sijubuwejipamun.mywebcommunity.org/rulilipusexanijase.pdfIn PDF document text
- https://cdn.sqhk.co/buruvalufe/iaxjbhi/clicker_heroes_wiki_ancient_souls.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4476011/normal_5fdb0f524deac.pdfIn PDF document text
- http://kiluzilaw.sportsontheweb.net/roser.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4465719/normal_6031604649456.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/d2434f67-f02f-4720-a3e1-781a7fe4a144/jiladidod.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5d1346f1-59ca-4938-99ef-f0197dc8c66e/nutcracker_the_story_of_clara_synopsis.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1397f769-dc94-4e0f-848b-34ee1720c7f7/dajomuzepaxek.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bd462d95-a81c-4b0f-b62d-20ef7936b849/nancy_drew_season_1_episode_13_watch_online.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a17aec12-baac-4f60-9673-c58de13d86f0/fafodifo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/941977de-4fea-4f43-b023-eb0e7cebe551/3890703848.pdfIn PDF document text
- http://supijidexigoba.epizy.com/amba_shambhavi_devotional_songs_free.pdfIn PDF document text
- http://seropurubok.epizy.com/munadetatobitamiwelanutiv.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3a7dbaec-d7d2-4236-88a7-aa9f5f1a97ef/32709875616.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/0b865576-898d-489f-9cbd-2e4f44f25136/88664101488.pdfIn PDF document text
- http://fafalibowadavuz.rf.gd/vaaste_song_mp4_hd_free.pdfIn PDF document text
- http://bidajalej.onlinewebshop.net/78300456187.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_off0000df57.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDF57	4680 bytes
SHA-256: `16501f713fabd14e3d2b76f87046ff446b5a2106b50bd0b8806a0562afbb490e`
`font_01_sfnt_off0000ef22.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEF22	10492 bytes
SHA-256: `7f380f1fdc8b5b58a26e3043da76bb546def5a2088321d5ca52581af694aa75b`
`font_02_sfnt_off000112f4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x112F4	4324 bytes
SHA-256: `1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e`

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