PDF malware analysis — malicious · 54553c6ed040c8bd

MALICIOUS

PDF

55.6 KB Created: 2020-08-01 09:09:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4d181e78de32d422cd8c278e1bdfe124 SHA-1: f37384839db6e7190999d3634bd8a147eec7fe69 SHA-256: 54553c6ed040c8bd96807be846c1cac068261ba8b2397a1ee068d1db08abea2a

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic indicating it's a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=reddit+anarchy+online'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0429/1559/4393/files/bofobuzo.pdf'. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing the lure. The primary attack pattern involves tricking users into clicking a malicious link.

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.ru/pify?keyword=reddit+anarchy+online
- http://files.hudsonvalleygarlicgrowers.com/uploads/1/3/1/0/131070792/xawitilifinudegil.pdf
- http://files.tnttoday.org/uploads/1/3/1/3/131381288/wulazoduxe-xawibuferejuv-gudefubefiguk.pdf
- http://files.getfireworksdelivered.com/uploads/1/3/1/4/131483108/e74300d60.pdf
- http://files.painfreeproject.com/uploads/1/3/1/8/131872079/8188498.pdf
- http://files.picnicstylingco.com/uploads/1/3/2/6/132681625/148292.pdf
- https://cdn.shopify.com/s/files/1/0429/1559/4393/files/bofobuzo.pdf
- https://cdn.shopify.com/s/files/1/0434/1573/2381/files/nogidol.pdf
- https://cdn.shopify.com/s/files/1/0437/3141/9287/files/zilurom.pdf
- https://cdn.shopify.com/s/files/1/0429/3469/8147/files/58745671983.pdf
- https://cdn.shopify.com/s/files/1/0434/9375/2997/files/rosobid.pdf
- https://cdn.shopify.com/s/files/1/0431/3848/2337/files/64776235665.pdf
- https://cdn.shopify.com/s/files/1/0431/0486/2375/files/40641102572.pdf
- https://cdn.shopify.com/s/files/1/0431/6640/0663/files/86656666849.pdf
- https://cdn.shopify.com/s/files/1/0431/2170/5124/files/72052511948.pdf
- https://cdn.shopify.com/s/files/1/0435/0102/7493/files/mokovejigavagola.pdf
- https://cdn.shopify.com/s/files/1/0430/6396/7906/files/titulojotoviwoxufekimaw.pdf
- https://cdn.shopify.com/s/files/1/0432/1801/0274/files/sam_broadcaster_free.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_off00009b53.bin` `50f55e07703120a662915263474ab1d98deef1a79cd12ce3790b00242612235e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9B53	4956 bytes
`font_01_sfnt_off0000ac38.bin` `589ea9a335a36d7ee34ffe1c659346823cc083d7c8a7f35e2e7aa938423a0dc5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAC38	10796 bytes

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