PDF malware analysis — malicious · 2bab63bf2600b54f

MALICIOUS

PDF

55.0 KB Created: 2020-08-31 15:27:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a71928afc337ebc0d21fe56ca79db6d1 SHA-1: cc92ba162b952490c9a62fa1a4fb76133b1ebe61 SHA-256: 2bab63bf2600b54f096b054506696dbdaf9957aa3fc05929a2a87313c4c630b7

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous links to Shopify-hosted PDFs. The document body, though heavily obfuscated, contains text related to financial assets and the URL 'https://ttraff.com/wix?keyword=fixed+asset+recorded+on+balance+sheet', suggesting a phishing or scam lure. The ML classifier also strongly indicated maliciousness.

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.com/wix?keyword=fixed+asset+recorded+on+balance+sheet
- https://cdn.shopify.com/s/files/1/0428/8475/9711/files/fire_life_safety_director_study_guide.pdf
- https://cdn.shopify.com/s/files/1/0431/2511/2988/files/92108879004.pdf
- https://cdn.shopify.com/s/files/1/0434/1117/7639/files/44222257764.pdf
- https://cdn.shopify.com/s/files/1/0428/5274/5375/files/tatumitanewugedaza.pdf
- https://cdn.shopify.com/s/files/1/0432/1758/4285/files/biogas_plant_model.pdf
- https://cdn.shopify.com/s/files/1/0433/3309/1480/files/97289871320.pdf
- https://cdn.shopify.com/s/files/1/0433/7146/2814/files/53111308352.pdf
- https://static.usrfiles.com/ugd/b88e3d_429042fcb48c48b09454a42993c0f221.pdf
- https://static.usrfiles.com/ugd/48f461_f6a3acc5bdac431f8e8e67ecb1ad3ccd.pdf
- https://static.usrfiles.com/ugd/97493d_b01e56ab94f440bf9ce0c18a617a6680.pdf
- https://static.usrfiles.com/ugd/286fb8_e112532b95ed43cc93ef1cde5b199403.pdf
- https://static.usrfiles.com/ugd/40512e_5f856d409eb7478ca3fe2214c72f89a4.pdf
- https://static.usrfiles.com/ugd/e2c6c1_1c3fc2460411405fbd672722e9428265.pdf
- https://static.usrfiles.com/ugd/0dd040_ef5e24a6ce66427eb40d8cf55575f6be.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00008b21.bin` `29775e54ac2b2060d541fbe72e293e7ba57285d4f5b71787513c624b2c244762`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B21	4976 bytes
`font_01_sfnt_off00009bf4.bin` `8c4e44759ee6ea8ee71e7b2465fb77627f60366875a7c796147b20d385d95494`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9BF4	10704 bytes
`font_02_sfnt_off0000c081.bin` `1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC081	4324 bytes

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