PDF malware analysis — malicious · cc8e2892657e37a7

MALICIOUS

PDF

72.4 KB Created: 2021-01-10 19:20:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15

MD5: 901d6fdb48cf83803b42f5dc56cdcae0 SHA-1: 004f69b4c237c7205db6e7e5b19ddad874b8947c SHA-256: cc8e2892657e37a7b21c8e29c3cfc20f030a31d9d89f92696bc0aa92f168ebfc

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains embedded URLs that lead to suspicious domains, and the ML classifier strongly indicates maliciousness. The document body, though partially corrupted, suggests a lure related to 'capital appropriation request process', likely a phishing pretext. The presence of external URIs and the overall detection by ClamAV as a phishing trojan points to a malicious intent to redirect users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9997

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://trafftec.ru/123?utm_term=capital+appropriation+request+process PDF link annotation
- https://cdn.sqhk.co/sixepatexup/bFjiAia/wuzalod.pdfIn PDF document text
- https://cdn.sqhk.co/pufowuvikij/q3IhUhb/mowizepodufugeg.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4415334/normal_5fc541528d4b8.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4409244/normal_5ff22bc0a87e0.pdfIn PDF document text
- https://site-1175198.mozfiles.com/files/1175198/buputosedap.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4392658/normal_5fe0f6b0bd190.pdfIn PDF document text
- https://site-1178304.mozfiles.com/files/1178304/34304361884.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4495058/normal_5fd8438aa81e7.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/bewibiwat/anne_of_avonlea_free.pdfIn PDF document text
- https://s3.amazonaws.com/jolituzoji/39570718718.pdfIn PDF document text
- https://s3.amazonaws.com/nefagolom/jantolo_song_by_bukunmi.pdfIn PDF document text
- https://s3.amazonaws.com/leributafa/bhoot_fm_18_october_2019_free.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 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000df4b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDF4B	4960 bytes
SHA-256: `6bf6a0bb3357f7e91077ba572d94159e4e75175ee1c7b9c8dd261895e816534a`
`font_01_sfnt_off0000f034.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF034	10620 bytes
SHA-256: `782c6aa840bbf90ce1eb6750b90458a629db827eebf54b9953f872aaddbc77f8`

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