PDF malware analysis — malicious · daf2a4e3aa4ff610

MALICIOUS

PDF

45.7 KB Created: 2020-08-29 18:55:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: f5d34f4e8a1f60d97e7033de1537942f SHA-1: 63dcd99ccb9ea6fe6aef43fa7883e9353dc69e3f SHA-256: daf2a4e3aa4ff610196f6499caa3131935a66fa3c1d4cf9ab999e47e215ee98a

140 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains a critical heuristic indicating it links to known malicious redirector infrastructure via the URL https://ttraff.com/wix?keyword=p.+o.+box+340+waite+park+mn. Additionally, it exhibits characteristics of a link farm, embedding numerous external links, many pointing to Shopify domains. The document body, though heavily obfuscated, also contains the malicious URL and appears to be a lure, potentially for a callback phishing or tech-support scam, as suggested by another heuristic. No scripts were extracted, but the primary attack vector appears to be user interaction with the malicious link.

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.
Callback phishing phone lure medium SE_CALLBACK_LURE

Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
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.com/wix?keyword=p.+o.+box+340+waite+park+mn
- https://static.usrfiles.com/ugd/b8c837_2de0a9dc2c264526926d7851542ac9a4.pdf
- https://static.usrfiles.com/ugd/de60da_2d56a1e0cdaf4b1aa72b9aad596f7239.pdf
- https://static.usrfiles.com/ugd/b8c837_65e00add5f7e4f819b732a07367ea238.pdf
- https://cdn.shopify.com/s/files/1/0430/2051/7537/files/samsung_tab_s2_8._0.pdf
- https://cdn.shopify.com/s/files/1/0437/3017/4113/files/baunvo_2020.pdf
- https://cdn.shopify.com/s/files/1/0452/4104/1057/files/totidetubobuva.pdf
- https://cdn.shopify.com/s/files/1/0431/1167/8114/files/39853106527.pdf
- https://cdn.shopify.com/s/files/1/0433/0071/6694/files/volitaloveroxobis.pdf
- https://cdn.shopify.com/s/files/1/0428/2253/3276/files/piche_barati_aage_band_baja_songs._pk.pdf
- https://cdn.shopify.com/s/files/1/0433/0536/9768/files/84477639195.pdf
- https://cdn.shopify.com/s/files/1/0431/5276/9192/files/23581100217.pdf
- https://cdn.shopify.com/s/files/1/0431/7780/3931/files/65878310445.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_off0000736f.bin` `cd6aa0304063e2fdb59c4ff048d1096690e280d13ea1b50a58e900dc16adf26d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x736F	5548 bytes
`font_01_sfnt_off0000864f.bin` `2791e229391072d756174ed0f1157a1fee4af6baf1a3dca3f834f7181a3ddd91`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x864F	10520 bytes

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