PDF malware analysis — malicious · 53ad8ffbeccbcc79

MALICIOUS

PDF

68.5 KB Created: 2021-03-01 07:43:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 32f6008c27d807c582a4914e5bb69fc0 SHA-1: 2324b09deb8eb80c2714036acf584bf54a74dd75 SHA-256: 53ad8ffbeccbcc7974b10b109f52fbafd44751f95a6c15483aea7b38353f2a5a

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains multiple embedded URLs, with the primary one being https://jottigo.ru/strik?utm_term=el+ser+uno+libro+6+pdf, suggesting it's used to redirect users to a malicious site. The PDF structure and embedded URLs are consistent with phishing or malware distribution campaigns.

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://jottigo.ru/strik?utm_term=el+ser+uno+libro+6+pdf
- http://cosmostil.top/42541197492755ok.pdf
- http://pitushok.space/gajurerenusdcaz.pdf
- https://cdn-cms.f-static.net/uploads/4420430/normal_601e483fcfb5f.pdf
- https://cdn.sqhk.co/zovitamojim/lwcigqK/bank_of_america_mobile_banking_download.pdf
- https://cdn-cms.f-static.net/uploads/4457318/normal_602ec49b865ae.pdf
- https://static.s123-cdn-static.com/uploads/4462730/normal_600367c14629b.pdf
- https://cdn.sqhk.co/wadusazilox/whiyeNP/rally_house_dallas_parkway.pdf
- http://itali-big.space/full_form_of_dpa2fysf.pdf
- http://ledimpress.biz/pexitajwbaa.pdf
- http://vquest.website/pilovuvimubipefetuvaledazbo4o1.pdf
- https://cdn-cms.f-static.net/uploads/4529977/normal_5fdc100d45ca7.pdf
- http://wide-take.top/56264703020ad983.pdf
- https://cdn.sqhk.co/vopuvafamiw/iemmjiy/luvewutabimudasubudekuv.pdf
- http://maxist.ru/don_moen_worship_songs_medley7dj2q.pdf
- https://cdn.sqhk.co/gozigawefo/ghihpij/65411656883.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://s3.amazonaws.com/dapekufoxiraku/daxoge.pdf
- https://s3.amazonaws.com/rezugekolaba/legion_leatherworking_guide_1-_800.pdf
- https://s3.amazonaws.com/leteraxewe/tojapefiputexigilisopino.pdf
- https://s3.amazonaws.com/viwoxuz/kererogevabebovuxel.pdf
- https://s3.amazonaws.com/vunizi/bluetooth_3._0_android.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_off0000cc90.bin` `dc7eab13cae1708904f76ef89602b9bea30f47c9483b6959f3e8fa97819c3337`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCC90	5076 bytes
`font_01_sfnt_off0000dde3.bin` `7efab64dbfdc33de68b01430dc9470428ad3d51c83d28eae392f8983c582423b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDDE3	11480 bytes

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