PDF malware analysis — malicious · f9614a92bc5354df

MALICIOUS

PDF

77.7 KB Created: 2021-03-29 15:54:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c3e2d589aee5f803783d625d20555de3 SHA-1: 6021025dd43d874285674562031518afed2fc3cb SHA-256: f9614a92bc5354dfa3327a0f3f935579492ec19acdc39d50600dad1421b2f6a2

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded URI pointing to a suspicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further confirm its malicious nature. Although no scripts were explicitly extracted, the presence of external URIs suggests the document is designed to redirect users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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://nipisod.ru/wix?keyword=warfare+1917+unblocked+flash+games+76
- https://cdn-cms.f-static.net/uploads/4458848/normal_600bf0b280f57.pdf
- http://xugafigipi.22web.org/akkada_photo_chinnavada_songs.pdf
- https://cdn-cms.f-static.net/uploads/4403533/normal_6022a566db67d.pdf
- https://cdn-cms.f-static.net/uploads/4459176/normal_60258393e7403.pdf
- http://nagonakog.22web.org/adewale_ayuba_music.pdf
- http://fusagawi.iblogger.org/dizuzipizipadules.pdf
- https://static.s123-cdn-static.com/uploads/4393016/normal_5fc828f970fb9.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/welanisowari/synonyms_antonyms_spreadsheet.pdf
- http://musovinudebepak.epizy.com/crazytalk_animator_3_pro_free.pdf
- http://bokapobutiz.rf.gd/formule_brute_benzoate_de_sodium.pdf
- http://vukenorap.epizy.com/can_metformin_cause_bubbles_in_urine.pdf
- https://s3.amazonaws.com/simujix/antiderivative_of_sin2x_cos_x.pdf
- http://nedelovuz.rf.gd/blague_de_tonton_liste.pdf
- https://uploads.strikinglycdn.com/files/0a5a70cd-c702-4c2f-9652-b8f564cf750b/keluzegizojiw.pdf
- https://uploads.strikinglycdn.com/files/50da473a-7ee8-45c3-99e3-ad3b60a3815b/were_going_on_a_bear_hunt_michael_rosen_helen_oxenbury.pdf
- http://fidusolufunenu.rf.gd/93943601869.pdf
- http://valopuloti.rf.gd/anorexia_nerviosa_libros.pdf
- https://uploads.strikinglycdn.com/files/e0fbc19f-e20a-4065-86be-95c3c5797915/zapafeko.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_off0000f02d.bin` `3a6ed92fc0c22c4ba62af99fbbdf23061b68b5adc3f3cd88d5bedca38743db20`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF02D	6096 bytes
`font_01_sfnt_off000104d3.bin` `2b77c0d8f58892c1c4cf657a4eed40da094b7c0e4589f220c37eb2f7c241a8b0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x104D3	10812 bytes

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