PDF malware analysis — malicious · 738db210e98548ca

MALICIOUS

PDF

65.2 KB Created: 2021-03-20 04:43:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24

MD5: d2452beadc2c5fdcf2ae40299ca6825d SHA-1: 2b8f7902e8f076b26cc0551fbafebd04a57f2960 SHA-256: 738db210e98548ca040dcd063e3b55bb8fd081af3ee53c062497735100bdea5a

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.8176

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
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
External URI info PDF_URI

PDF contains an external URL action
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/award?keyword=angle+between+two+lines+coordinate+geometry+pdf PDF link annotation
- https://nozusetemakofam.weebly.com/uploads/1/3/1/4/131408546/c831d.pdfIn PDF document text
- http://pro-komp-master.website/ho_adivasi_dj_songs8z89.pdfIn PDF document text
- http://malespw.xyz/how_to_put_together_a_ingenuity_swingr9blt.pdfIn PDF document text
- https://natapoja.weebly.com/uploads/1/3/0/8/130813782/9674297.pdfIn PDF document text
- http://center-about.com/line_disney_tsum_tsum_apk9wkwd.pdfIn PDF document text
- http://xtreme-sport.ru/how_much_does_philips_lifeline_cost_per_monthcoyph.pdfIn PDF document text
- https://kaginugopaz.weebly.com/uploads/1/3/4/3/134310825/6024287.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://bc732cde-fb09-4fee-8ab5-c82a45a1131b.filesusr.com/ugd/2ac701_6cb38354d690459095bd6fb4460baaa0.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/zijivevip/57983222398.pdfIn PDF document text
- https://41be308f-8a64-4dec-8b30-4937605be974.filesusr.com/ugd/f042fe_4af0a2dfdbb546b4b46e75f9e1aced86.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/xezujuxoz/52365563640.pdfIn PDF document text
- https://s3.amazonaws.com/zunaduxa/annual_report_pt_sido_muncul_2018.pdfIn PDF document text
- https://s3.amazonaws.com/povodijirig/disable_report_problem_ubuntu.pdfIn PDF document text
- https://s3.amazonaws.com/kijelopazekune/81636325014.pdfIn PDF document text
- https://s3.amazonaws.com/wusigipufuvowix/jowedagulomikurajirepofux.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5f1cfe18-0e02-4400-91d2-aeaaf4989463/how_do_you_unclog_a_fellowes_shredder.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/14810041-8e2e-44e9-83bf-1095ab94afc5/2007_tahoe_boat_owners_manual.pdfIn PDF document text
- https://d12e84a0-9808-45da-82c6-613dfe540d1b.filesusr.com/ugd/dc8a8e_6aa2f83a018340bf815585f1656e9b50.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/cc725aac-b75d-427b-bdb6-b151788b5fd5/agudas_llanas_y_esdrujulas_4_primaria.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/39dd8f22-d0e0-49ca-9eb7-ac959e796946/pizamiboka.pdfIn PDF document text
- https://aee666f7-65d2-4416-8089-42e5bd85255d.filesusr.com/ugd/c4036c_7160447a85fe454cae084325ba7a8903.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/remavuj/god_wars_vita_trophy_guide.pdfIn PDF document text
- https://s3.amazonaws.com/jigezilor/fuwasaxoz.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/74f86c53-00e0-4656-bab5-bf958b585030/feribigalozadagopedite.pdfIn 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_off0000ce4c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCE4C	5584 bytes
SHA-256: `9122ae74450c98a72b8fb797228591f6392c34f6464b066b26b9e975ab9942f4`
`font_01_sfnt_off0000e13a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE13A	9528 bytes
SHA-256: `dd38544798b66020d32d6eef8e3106fc894c2d2a5b5a28308facedc78d082e82`

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