PDF malware analysis — malicious · 8b39268b1921ecbd

MALICIOUS

PDF

51.3 KB Created: 2020-08-07 18:46:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 51a6878132bc9d282cfcc42d98636a35 SHA-1: 45262a2cec23edcf3444310ca6eceecbddac2815 SHA-256: 8b39268b1921ecbd0175690d810f10b3a6470ecbdcb4093e4ce7a0c794e213a6

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=model+cerere+demisie+fara+preaviz+pdf, which is likely used to redirect users to further malicious content or phishing pages. The document body, though heavily obfuscated, contains references to the malicious URL and benign-looking PDF filenames, suggesting a lure to disguise the malicious intent.

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=model+cerere+demisie+fara+preaviz+pdf
- http://files.renichedfurniture.com/uploads/1/3/0/9/130970008/1045036.pdf
- http://files.southphiladelphia-locksmith.com/uploads/1/3/0/8/130874286/9642532.pdf
- http://files.shekhargn.com/uploads/1/3/1/4/131453733/96ede.pdf
- http://files.dutchbudha.com/uploads/1/3/2/8/132814030/zozulufogipoja.pdf
- http://files.teamwolverineathletics.com/uploads/1/3/1/4/131406369/xotarudanerelibobuz.pdf
- https://cdn.shopify.com/s/files/1/0433/5045/8520/files/jiluparaxefutulad.pdf
- https://cdn.shopify.com/s/files/1/0427/6197/8023/files/how_to_make_beetroot_soup_in_minecraft.pdf
- https://cdn.shopify.com/s/files/1/0428/0755/8310/files/63643627259.pdf
- https://cdn.shopify.com/s/files/1/0432/3957/1616/files/pimenetoxabivorojidupot.pdf
- https://cdn.shopify.com/s/files/1/0432/3095/3630/files/24222465867.pdf
- https://cdn.shopify.com/s/files/1/0436/4995/8046/files/54369155943.pdf
- https://cdn.shopify.com/s/files/1/0429/0831/9907/files/52258919747.pdf
- https://cdn.shopify.com/s/files/1/0436/9452/2523/files/81923730436.pdf
- https://cdn.shopify.com/s/files/1/0430/6976/7831/files/28851664474.pdf
- https://cdn.shopify.com/s/files/1/0430/4578/1665/files/zasiwazaletijur.pdf
- https://cdn.shopify.com/s/files/1/0431/6761/3087/files/cambiar_en_ingles_a_espaol.pdf
- https://cdn.shopify.com/s/files/1/0435/4405/1864/files/82174308091.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_off00008837.bin` `5d47ec3a3e59daffc3672cf13921eaf7f5773dcc1ccb6c4dafc758e8e2bca3ad`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8837	5416 bytes
`font_01_sfnt_off00009aa9.bin` `641f15030bb59fa274bbe5da7771cb344a4c39d5b6ba94c0859ca43f4a75382d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9AA9	11224 bytes

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