PDF malware analysis — malicious · 82a3c19ebf9fb9c4

MALICIOUS

PDF

85.9 KB Created: 2021-02-09 14:48:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18

MD5: d5f60adcbf4187b957cbcd57736206c3 SHA-1: 08698eef6d9e26daa6c41d397f732eda752589d3 SHA-256: 82a3c19ebf9fb9c4c557570b84c5b9ba64d95903a6aca4d678949147cff833bc

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'bologen.ru' suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a lure to download further malicious 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://bologen.ru/123?utm_term=discord+dad+bot+meme PDF link annotation
- https://cdn.sqhk.co/govizanorev/jc5jhid/commander_genius_download.pdfIn PDF document text
- http://stebsmeh.space/79649367573bfyyy.pdfIn PDF document text
- http://swiss-family.space/jarilatebalufi6g8.pdfIn PDF document text
- https://cdn.sqhk.co/mekekomubun/hfjelwW/fofenadimujaj.pdfIn PDF document text
- http://shtampshop.ru/ba_first_sem_booksd62jr.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://kuporalegumema.epizy.com/nalobotefesinifufuwo.pdfIn PDF document text
- http://ramogefakox.rf.gd/functions_in_r_cheat_sheet.pdfIn PDF document text
- https://s3.amazonaws.com/kiguteperilodu/dikuv.pdfIn PDF document text
- http://titegerekarirov.rf.gd/latotam.pdfIn PDF document text
- http://worupowa.epizy.com/gawenos.pdfIn PDF document text
- http://ribizotujigotok.rf.gd/xixozudadazabumafo.pdfIn PDF document text
- https://s3.amazonaws.com/gezizefefififa/safemivapasimumizo.pdfIn PDF document text
- http://fexulumusevemi.rf.gd/gateway_2nd_edition_c1_workbook_answers.pdfIn PDF document text
- https://s3.amazonaws.com/mizeteb/18815474248.pdfIn PDF document text
- https://s3.amazonaws.com/rakabexozu/detatezi.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_off000111d1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x111D1	5192 bytes
SHA-256: `1e3b2d46bbbcfc1663feb1b6ade1fa944444f8df1c42d76f27a0c7ea9bd8d9be`
`font_01_sfnt_off00012360.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12360	11520 bytes
SHA-256: `e4142f64038112841085958546c7eda00ed27ff17a1c05a5e37c408bea04a5f2`

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