PDF malware analysis — malicious · b3ce247674bbd0ae

MALICIOUS

PDF

53.2 KB Created: 2020-08-19 07:02:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a1586194c14e91851962deb4b3c8fda3 SHA-1: efc5623798c3d01663893a3984984cafec9d7cc7 SHA-256: b3ce247674bbd0aedddff905e588636c41f69519bb3ba140431a5a4f4ed74597

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic firing indicates a direct link to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=albinismo+en+pediatria+pdf'. This suggests the document is designed to redirect users to malicious content, likely for phishing or malware distribution. No scripts were extracted from this sample.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

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.
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://ttraff.cc/pify?keyword=albinismo+en+pediatria+pdf
- http://files.new2ufashions.net/uploads/1/3/1/6/131636766/xapuwene.pdf
- http://files.jodimarieevents.com/uploads/1/3/2/6/132696210/xevufugonebif.pdf
- http://wofuda.amitie-collection.com/uploads/1/3/0/7/130775795/zadimatuzul-zulakisu-fibofezolalof-fapadoti.pdf
- http://files.seasprayaustralianlabradoodles.com/uploads/1/3/1/8/131871762/somobig.pdf
- https://cdn.shopify.com/s/files/1/0434/5423/4785/files/9783814171.pdf
- https://cdn.shopify.com/s/files/1/0434/3808/0166/files/68882522965.pdf
- https://cdn.shopify.com/s/files/1/0428/1742/1479/files/79719680618.pdf
- https://cdn.shopify.com/s/files/1/0433/2814/3510/files/putonakijagiduxosopurivo.pdf
- https://cdn.shopify.com/s/files/1/0429/3401/0015/files/bizininobebolojos.pdf
- https://cdn.shopify.com/s/files/1/0431/8153/9489/files/35638337578.pdf
- https://cdn.shopify.com/s/files/1/0431/7796/7778/files/53302363028.pdf
- https://cdn.shopify.com/s/files/1/0429/8535/7463/files/zamutujitenemal.pdf
- https://cdn.shopify.com/s/files/1/0437/7496/7965/files/89115474836.pdf
- https://cdn.shopify.com/s/files/1/0435/2134/3647/files/bisewa.pdf
- https://cdn.shopify.com/s/files/1/0434/6196/8025/files/how_to_clear_variables_in_python.pdf
- https://cdn.shopify.com/s/files/1/0438/1147/1520/files/53220713227.pdf
- https://cdn.shopify.com/s/files/1/0435/0056/8736/files/31274687544.pdf
- https://cdn.shopify.com/s/files/1/0437/5583/1445/files/waledo.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000847e.bin` `172bedc6f83641309f0c09ce7d5aac82767801680380e7dbe83dedaea6149906`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x847E	5316 bytes
`font_01_sfnt_off00009665.bin` `905f23542be6dfacd33005159156d90b1367012ea70bdac2474c1b381de40faf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9665	15496 bytes

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