PDF malware analysis — malicious · b23af1bb5a9f0a6e

MALICIOUS

PDF

39.9 KB Created: 2020-08-03 16:46:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 92d789a5bcd18ff147102293ad4a7cb9 SHA-1: 163f77b6c14138ddec503c5e650e02e20d40b4d3 SHA-256: b23af1bb5a9f0a6e8e8d9cb3bf220f296e5db543c3cda041052db98eca856267

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, many hosted on Shopify, designed to appear as legitimate documents. One critical heuristic identified a link to a known malicious redirector at `https://ttraff.cc/pify?keyword=bishop+score+adalah+pdf`. The document body contains urgency language, reinforcing the lure to click the malicious link. No scripts were extracted from this sample.

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.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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=bishop+score+adalah+pdf
- http://files.thehillcroft.co.uk/uploads/1/3/1/0/131070751/8627579.pdf
- http://files.mosaicsupervision.org/uploads/1/3/1/0/131069934/2975414.pdf
- http://files.frontrunnerbooks.com/uploads/1/3/1/6/131606670/fobigamikufejit_suroxapebe_takezojojoluwux_walosuwugefeji.pdf
- http://files.harvestwineoutfitters.com/uploads/1/3/1/4/131437242/72a587b36f4.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nimapudusakodinufuzexive.pdf
- https://cdn.shopify.com/s/files/1/0431/6269/7894/files/tagisunedina.pdf
- https://cdn.shopify.com/s/files/1/0431/1370/9722/files/16165361436.pdf
- https://cdn.shopify.com/s/files/1/0431/4746/0768/files/xodulofisoneses.pdf
- https://cdn.shopify.com/s/files/1/0429/0982/7231/files/43995426996.pdf
- https://cdn.shopify.com/s/files/1/0428/4655/2230/files/81852086976.pdf
- https://cdn.shopify.com/s/files/1/0429/6241/9863/files/nurogixenav.pdf
- https://cdn.shopify.com/s/files/1/0439/3612/0990/files/54568187982.pdf
- https://cdn.shopify.com/s/files/1/0438/5597/0464/files/dogodopisomezumubuxevojen.pdf
- https://cdn.shopify.com/s/files/1/0436/6453/9798/files/38664481585.pdf
- https://cdn.shopify.com/s/files/1/0431/1734/6965/files/moxoxozetoped.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_off00005eab.bin` `ace15b6699ab8a14f381fdba810c865905eadd03559f83ba2b02cd80ab29b9b4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5EAB	5292 bytes
`font_01_sfnt_off000070aa.bin` `d742d6f9523b24a2b0ba0e951842b1342ce90c6d356a4d0bcecdc3586be9f197`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x70AA	10096 bytes

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