PDF malware analysis — malicious · 2f1ea7ebdd9f2582

MALICIOUS

PDF

40.1 KB Created: 2020-08-03 14:19:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c2a3693c4d8e42736994ef68c998dddc SHA-1: 24808120a4c6fef244d4160023c6d6b8534644c3 SHA-256: 2f1ea7ebdd9f2582ec6f2d30408a892022bedc12543e75383df0830f02b3b6bd

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a malicious redirector link that leads to a URL designed to trick users into downloading further content. The document body, though heavily obfuscated, contains the malicious URL and numerous other benign-looking PDF links, suggesting a link farm or redirection tactic. The ML classifier strongly indicated maliciousness, and the PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the presence of a known malicious redirector.

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=carte+du+monde+vierge+avec+pays+pdf
- http://files.nelacrosseschool.com/uploads/1/3/1/0/131070618/cc27cae.pdf
- http://files.tunedinteachers.com/uploads/1/3/1/8/131857305/xuxutetidutuwak-zureba-femerigipirijez.pdf
- http://duwov.bunnyandclyde.com/uploads/1/3/1/0/131070152/2242775.pdf
- http://files.heavensgardenrestored.com/uploads/1/3/1/3/131379828/6b697ba.pdf
- http://files.ghoshyogatraining.com/uploads/1/3/2/6/132681378/nakutesewamalonapise.pdf
- https://cdn.shopify.com/s/files/1/0433/4632/9750/files/13518370399.pdf
- https://cdn.shopify.com/s/files/1/0431/6289/4498/files/24531862368.pdf
- https://cdn.shopify.com/s/files/1/0431/0951/5425/files/17447513828.pdf
- https://cdn.shopify.com/s/files/1/0429/0406/0071/files/is_there_an_algorithm_for_2048.pdf
- https://cdn.shopify.com/s/files/1/0430/0704/9877/files/21473644455.pdf
- https://cdn.shopify.com/s/files/1/0437/9358/0189/files/nefisexukud.pdf
- https://cdn.shopify.com/s/files/1/0429/5763/5735/files/47743556776.pdf
- https://cdn.shopify.com/s/files/1/0433/6143/5813/files/tutinufotulaparobot.pdf
- https://cdn.shopify.com/s/files/1/0432/6142/7867/files/323651899.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/45366335679.pdf
- https://cdn.shopify.com/s/files/1/0430/4066/9849/files/19868746388.pdf
- https://cdn.shopify.com/s/files/1/0434/2136/8472/files/convert_image_to_icon.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_off00004e41.bin` `b0f4321e12e84456e14c134c39ff85edbfbe44f4e82673271ecd5d857efd051e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4E41	5512 bytes
`font_01_sfnt_off000060ff.bin` `61672ec527c2bf9732c9238af3b877684b7b00ce052f318398660655c964c38c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x60FF	16244 bytes

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