PDF malware analysis — malicious · 7672e7ceaae5e6a6

MALICIOUS

PDF

79.7 KB Created: 2021-03-16 15:40:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17

MD5: db0ef2bbae59e4067b4ce5e5e6a165f3 SHA-1: 6908d4173c89b2509ada09bb4f2e31a22d5a4659 SHA-256: 7672e7ceaae5e6a652a15fa989d0b9e0119faf65614e71d5028a2e1c9667186c

146 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs pointing to potentially malicious domains, as indicated by the 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_URI' heuristics. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. While no scripts were explicitly extracted, the structure and URL patterns are consistent with a phishing lure designed to redirect users to compromised or malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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.
QR-code redirect lure medium SE_QR_LURE

Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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://gimoguvi.ru/award?keyword=california+disneyland+map+pdf PDF link annotation
- https://cdn.sqhk.co/mevazasid/e2Sifjf/jalezod.pdfIn PDF document text
- https://girowotejetut.weebly.com/uploads/1/3/1/4/131406843/laridapekepimex_wagemikeb_lonij_tomewewewizi.pdfIn PDF document text
- http://hurleyshamburgers.com/what_was_the_most_important_renaissance_city_in_italy0i13x.pdfIn PDF document text
- https://kupifibadobibe.weebly.com/uploads/1/3/4/5/134512214/764d0276afe4ac.pdfIn PDF document text
- https://subinekole.weebly.com/uploads/1/3/2/6/132695692/7f13dbf24ee.pdfIn PDF document text
- http://just-gopro.com/barefoot_investor_2019pgwq9.pdfIn PDF document text
- https://cdn.sqhk.co/tofatuxurejo/dLAnFt5/kadalisazu.pdfIn PDF document text
- http://winclean-shop.space/coleman_mach_rv_air_conditioner_installationo5bue.pdfIn PDF document text
- http://tekdouche.xyz/football_world_cup_2018_song_videoq0vb6.pdfIn PDF document text
- https://kunobozawi.weebly.com/uploads/1/3/1/4/131453145/8601021.pdfIn PDF document text
- https://cdn.sqhk.co/gulifunanale/lFXhijb/stack_ball_2019.pdfIn PDF document text
- http://safilow.iblogger.org/bank_of_baroda_home_loan_form.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/1a637554-1835-4741-bd63-47d26b615b21/bipukikunobuzumonufebala.pdfIn PDF document text
- https://s3.amazonaws.com/metubevozisul/toxizasabozuxivebak.pdfIn PDF document text
- http://retatek.epizy.com/vowagolavob.pdfIn PDF document text
- https://s3.amazonaws.com/gopuze/arkansas_razorbacks_football_schedule.pdfIn PDF document text
- https://s3.amazonaws.com/sonutopexaramuf/34387691813.pdfIn PDF document text
- http://gujimimokogofe.rf.gd/bowuneruvowow.pdfIn PDF document text
- https://s3.amazonaws.com/kefodek/52483779850.pdfIn PDF document text
- https://s3.amazonaws.com/xulikamul/aptitude_questions_and_answers_in_interview.pdfIn PDF document text
- http://gipapexof.rf.gd/sijofo.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/347b34ce-1f3c-485c-9fa8-a5a82966d45f/what_is_the_main_point_of_hamlets_soliloquy.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://youtu.be/luDgb5vVHuAIIn 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_off0000ef48.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEF48	5196 bytes
SHA-256: `3317ef72cdccab92bf09e56c7220e915d765ab1baca3767f208392b144c3ea64`
`font_01_sfnt_off000100de.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x100DE	1800 bytes
SHA-256: `e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d`
`font_02_sfnt_off0001096c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1096C	11244 bytes
SHA-256: `bfb6cdb5c65edb4614d9572795aecbd6b3cf056b79330053135658bb9454facd`

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