PDF malware analysis — malicious · d06d9532611e043c

MALICIOUS

PDF

79.6 KB Created: 2020-12-03 15:48:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11

MD5: 7abd96903a1c4d871094d343aa638b6f SHA-1: 6af0a3c1e2400a72b84170ffa98ff4d352a92564 SHA-256: d06d9532611e043cbc0052c2e3876545fe4c89c25df50a7f0a22c8f490760435

214 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous links, many pointing to potentially malicious redirectors and link farms, disguised under the guise of free sheet music. The presence of a critical PDF_MALICIOUS_REDIRECTOR_LINK heuristic and ClamAV detection strongly indicates malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to phishing or malware-hosting sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 5

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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.
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://ggtraff.ru/aws?utm_term=free++hymns+sheet+music In PDF document text
- https://volejodanuba.weebly.com/uploads/1/3/4/5/134593723/nitubevetuxo.pdfIn PDF document text
- https://gabesusot.weebly.com/uploads/1/3/4/8/134895193/5e56cfd4083.pdfIn PDF document text
- https://xomadugazulu.weebly.com/uploads/1/3/4/5/134597447/nebudazidu-vakirok-goxupipeberu-viwewofosita.pdfIn PDF document text
- https://rawavofim.weebly.com/uploads/1/3/1/4/131452817/tujapi-filojasapigogod-suzurefazipini.pdfIn PDF document text
- https://tufefuru.weebly.com/uploads/1/3/4/6/134621659/fawimakabisas-xesebukudafabo-nowukonikinatu.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static1.squarespace.com/static/5fc668c6085bf90c0e22d7bb/t/5fc8031e5bac470238ee33e6/1606943520999/ocean_dream_meaning_christian.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc5d67911f6a41984a7808b/t/5fc627e64f98375720b126f7/1606821863242/excalibur_artillery_fireworks.pdfIn PDF document text
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd2e3fd7a60659a544a1e6/1606233664199/dowaja.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc58ba9c89e1c4b8fde24ba/t/5fc80b400b0ca147a56b73ab/1606945600527/nba2k20_locker_codes_that_never_expire.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc0dd745bcb0228a2824d01/t/5fc0fa959d79364840b050de/1606482581530/vejujupamokoziw.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc2a873e5c7695ca9a6fc9e/t/5fc8c4ef094cf7617dc8aeb4/1606993135835/podanezekene.pdfIn PDF document text
- https://s3.amazonaws.com/jojitagifuva/deranged_nigerian_movie.pdfIn PDF document text
- https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf57c64e98326c0207a472/1606375368537/5961831313.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc0ea1fa8793968640865e0/t/5fc11261145a8629dcd6e626/1606488674382/49630858391.pdfIn PDF document text
- https://static1.squarespace.com/static/5fc0e0f3f7cf8c75402ad020/t/5fc3d3cd08845d0924fedb5b/1606669263085/advanced_spell_search_pathfinder.pdfIn PDF document text
- https://s3.amazonaws.com/nuruvapozixix/59809903212.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e4f0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE4F0	4856 bytes
SHA-256: `3342c3b87e2a3e057e75b88a7b580e0338f189141f3e1a15f6c3c43523ed88da`
`font_01_sfnt_off0000f556.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF556	11816 bytes
SHA-256: `1152533a7df1029b328265ace064ae26b2340f253ae952816ddb31b1020b2755`
`font_02_sfnt_off00011c7d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11C7D	16100 bytes
SHA-256: `84650fe671c70ac66f3af0994468c9b9feb42d01905b0f030d5781e095ef8e52`

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