PDF malware analysis — malicious · 5d4fbe72c8788abf

MALICIOUS

PDF

82.7 KB Created: 2020-12-30 13:21:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4a7cad67a9b132d309037be73893141e SHA-1: 7f717e8352489f3c52d989d0f5be1f69a0e4d8dd SHA-256: 5d4fbe72c8788abfecc8c73522eb8735e0dffa6155f6e08218b62f98ae324d06

136 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The ML classifier and ClamAV detection strongly indicate maliciousness. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' confirms the document's intent to defraud the user by presenting a fake lottery or parcel delivery scenario. The embedded URL directs the user to a suspicious domain, likely to download a second-stage payload or phish for credentials.

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
Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE

Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
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://traffking.ru/strik?utm_term=does+screen+time+affect+apple+watch
- https://cdn.sqhk.co/luvuxokam/chffnhf/classroom_timers_bomb.pdf
- https://cdn-cms.f-static.net/uploads/4417129/normal_5f95e5d03c8d6.pdf
- https://cdn-cms.f-static.net/uploads/4392872/normal_5f913291422ba.pdf
- https://cdn-cms.f-static.net/uploads/4367271/normal_5f8fc54ee948d.pdf
- https://static.s123-cdn-static.com/uploads/4391047/normal_5fc902046df77.pdf
- https://cdn-cms.f-static.net/uploads/4370762/normal_5fd7d99b0ee0e.pdf
- https://static.s123-cdn-static.com/uploads/4376619/normal_5fdd1f98849c3.pdf
- https://cdn-cms.f-static.net/uploads/4393033/normal_5fa01f0019828.pdf
- https://cdn-cms.f-static.net/uploads/4366057/normal_5f8971609d68a.pdf
- https://cdn-cms.f-static.net/uploads/4421939/normal_5f9d64f9bd1e3.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/zikeko/crystal_reports_sp_26.pdf
- https://s3.amazonaws.com/megodipewukitoj/bitsat_2013_question_paper.pdf
- https://s3.amazonaws.com/xisakazelelinim/getule.pdf
- https://s3.amazonaws.com/jupevuxirapi/fonefo.pdf
- https://s3.amazonaws.com/mexesazaxasa/year_to_date_financial_statement_template.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00010360.bin` `15314d04b242acd8a595c31b1d562bc50c2a33364664b039359fb3ba5bc59258`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10360	5348 bytes
`font_01_sfnt_off0001157d.bin` `5d93ba6fa4416fa22fd508443bd2140937ba2233ba08b910b3f146898528b453`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1157D	11880 bytes

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