PDF malware analysis — malicious · 85bc8ebd2586b3bd

MALICIOUS

PDF

45.2 KB Created: 2020-10-29 01:47:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14

MD5: 87662696d6f6927718284a6efa1d91a1 SHA-1: 222e69d802d3e0b7e885fa6e81f44b411352c63a SHA-256: 85bc8ebd2586b3bda7da9ec2d85227fcc9b156ce14a2cedb8113078f17fbd43b

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, 'https://ggtraff.ru/strik?keyword=nabhi+kriya+for+prana-apana+pdf', suggesting a phishing or malware distribution attempt. The document's structure and the sheer volume of links indicate a link farm or SEO poisoning tactic, likely designed to drive traffic to malicious sites.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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.
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://ggtraff.ru/strik?keyword=nabhi+kriya+for+prana-apana+pdf In PDF document text
- https://tenabawik.weebly.com/uploads/1/3/2/7/132710661/abdce.pdfIn PDF document text
- https://jatorogerujew.weebly.com/uploads/1/3/2/7/132710569/a63fb.pdfIn PDF document text
- https://fikepeti.weebly.com/uploads/1/3/4/4/134489659/06657043.pdfIn PDF document text
- https://noxepelobisuse.weebly.com/uploads/1/3/1/8/131871648/839958145.pdfIn PDF document text
- https://kurikezexiwu.weebly.com/uploads/1/3/0/7/130775092/4317364.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0392/6952/files/9596667655.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0500/4489/5392/files/18856967505.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0266/9114/1801/files/foduwijosojarap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7885/2503/files/tajavowetabot.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2683e6b0-be27-4ef5-8bcf-2607efd4f9bf/migixez.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2174/5823/files/piwaga.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c192a559-4cb5-4537-9df6-0a5fc6beab72/lomofogaxikuxusowigigepe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0502/0840/7745/files/punixidav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/1172/4696/files/polonowuxasiwajenali.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0500/4312/5917/files/wogeluwaritas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2990/4032/files/mitotorubegexe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3886/6597/files/sims_freeplay_mod_apk_data.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0266/8488/3141/files/luponejofosuzumujibilato.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/3b82d8a5-b711-4cb5-9a55-86d9937adc05/76231185752.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b32d7433-5a5b-4805-a8a0-53e979160a0c/song_for_sienna_sheet_music.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/97e837c8-e391-4856-8c1d-077b57d0f4ea/kigasinurugababifotogi.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/f3a00835-1ef7-4aa0-8f9f-4b4ba60b4792/pekifo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1526/6723/files/92866445458.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9729/1941/files/hak_asasi_manusia_adalah.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1bcce1e0-7dfd-450c-abfd-e794f34bbfa7/contagious_jonah_berger.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0472/3130/3845/files/fl_studio_10_crack_download_full_version.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_off0000714b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x714B	5228 bytes
SHA-256: `4b619bfaa8312c198d1736a853f74aa6d53d7b9688257dc406b12a12e63005e7`
`font_01_sfnt_off0000831b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x831B	10612 bytes
SHA-256: `a25bc74e14d20390e10831346f387f5dc1ff088282237be6349527c8479816cd`

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