PDF malware analysis — malicious · a0bc279c1aced4a9

MALICIOUS

PDF

73.7 KB Created: 2021-03-12 16:51:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02

MD5: 8d1c8befb5e0856bc2b7ed320b6c0132 SHA-1: 6a7d0b5b34c7ea0462217740d87a3d249717c60d SHA-256: a0bc279c1aced4a909ebe7b9b2b7fde10d49051004c0384b5b23497eb19e23d5

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by a ClamAV signature and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains a mass external link farm, with one prominent link pointing to 'https://lozipotod.ru/wix?keyword=rogue+soul+unblocked+google+sites', suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains keywords related to search results and unblocked games, reinforcing the lure. No scripts were extracted, but the PDF structure itself facilitates the redirection to the malicious URL.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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
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://lozipotod.ru/wix?keyword=rogue+soul+unblocked+google+sites PDF link annotation
- http://ganitigusawev.mygamesonline.org/cardiomegalia_fisiopatologia.pdfIn PDF document text
- http://kuzexamipapoxip.medianewsonline.com/dumajazivana.pdfIn PDF document text
- http://fejavodexata.getenjoyment.net/a_arte_de_amar_frases.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://s3.amazonaws.com/mosezavor/orthographic_to_isometric_drawing_exercises.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b87cb1d2-45ae-411d-8277-d25521252619/gonakopilemozojubadadar.pdfIn PDF document text
- https://s3.amazonaws.com/kavifunaruvi/52043075790.pdfIn PDF document text
- https://f3dbd103-cf2f-44fc-b0ad-c9004dc38af2.filesusr.com/ugd/1f2646_07f6c1c18a9d4f9c9b98c8fd5762904c.pdf?index=trueIn PDF document text
- https://246406bc-bb0d-4f29-baed-d8a6153a9543.filesusr.com/ugd/3ddeef_9698063cf22c403ab3cab784bdb306f2.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/nutanigonu/56973336156.pdfIn PDF document text
- http://pevurevakube.rf.gd/ui_designer_portfolio_template.pdfIn PDF document text
- https://s3.amazonaws.com/rebesudanolo/76973219653.pdfIn PDF document text
- https://746420f6-3007-491b-ba72-fd43be5094e5.filesusr.com/ugd/277b62_0c12309ef90b4d0f8b6f2be2cc755f5a.pdf?index=trueIn PDF document text
- https://6cbe2f5c-748b-4bc6-b691-25a968a47885.filesusr.com/ugd/d6b5da_6364c746bffb49198fdf69fb9592f50a.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/3b053602-bad1-49c4-a891-e92db0c65dfc/dapple_sausage_dog_puppy_for_sale.pdfIn PDF document text
- https://938a05da-450f-421e-a59b-0448473a402a.filesusr.com/ugd/cb5dea_11cf51dfe0fc44bc8ccb41ae5e9def39.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/80a25aff-71e7-4e06-b238-4dfe17b3d738/toviwavijasomovufubawin.pdfIn PDF document text
- http://xuxerutiwuv.onlinewebshop.net/william_shakespeare_the_taming_of_the_shrew.pdfIn PDF document text
- http://mikijanux.atwebpages.com/kuviruvesofapiwikos.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/eb3f95ca-e72a-44db-a78c-67e32a314c49/what_questions_should_i_ask_a_marriage_counselor.pdfIn PDF document text
- https://s3.amazonaws.com/ruzaganog/asme_pump_standards.pdfIn PDF document text
- http://gototura.myartsonline.com/42136360145.pdfIn PDF document text
- http://jumajiker.rf.gd/the_maze_runner_2_movie_download_in_tamil.pdfIn PDF document text
- http://nixomirorubu.myartsonline.com/rujibodos.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000d761.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD761	4896 bytes
SHA-256: `2bcb508e147a21d10a9eb6c58bbfce69621ada8a873e58405d2572b35574a894`
`font_01_sfnt_off0000e825.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE825	10268 bytes
SHA-256: `9dbeff24e9c6ee53582287bdc7a864414a45088cd927400bb9c0689b80be910e`
`font_02_sfnt_off00010b47.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x10B47	4324 bytes
SHA-256: `b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c`

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