PDF malware analysis — malicious · 3a5c9756ba0143d1

MALICIOUS

PDF

50.0 KB Created: 2020-08-31 01:05:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 759fab0b8a0ff748642b160e20788c80 SHA-1: 33fb869971282334f6e83961b7b2b27792147766 SHA-256: 3a5c9756ba0143d18d0ab5d8a9910418320db0456024f821479b6a2bf240dadc

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link farm and a direct link to a redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to 'Xiaomi ninebot min' and the redirector URL, suggesting a lure for a product-related scam. The presence of numerous links to Shopify-hosted PDFs, combined with the malicious redirector, points to a coordinated effort to drive traffic to malicious sites.

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=xiaomi+ninebot+min
- https://cdn.shopify.com/s/files/1/0430/4646/9793/files/wodidadomuwakot.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94192334972.pdf
- https://cdn.shopify.com/s/files/1/0434/6681/7689/files/32230841590.pdf
- https://cdn.shopify.com/s/files/1/0464/0912/1960/files/ht12d_decoder_datasheet.pdf
- https://cdn.shopify.com/s/files/1/0431/6377/9240/files/82978649028.pdf
- https://static.usrfiles.com/ugd/1f2646_6622ff8bae424076be242ef1867ecf1b.pdf
- https://static.usrfiles.com/ugd/6240f8_6674e7772ec04865ae878ffabdcae587.pdf
- https://static.usrfiles.com/ugd/5926b4_92b57663ad7141b39580624448bbc07e.pdf
- https://static.usrfiles.com/ugd/de3d83_89f589cb8588465982bc10803b2fad42.pdf
- https://static.usrfiles.com/ugd/6908d7_45501c6c3daf4a2c9f116e2fc1a6ae20.pdf
- https://static.usrfiles.com/ugd/8ab72e_84282767a7d84235bb616b9a33139ec3.pdf
- https://static.usrfiles.com/ugd/a467d2_09cb1deb39f64667952eb955882fd9b0.pdf
- https://cdn.shopify.com/s/files/1/0431/7043/1125/files/sivipiteki.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kozaw.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00005be9.bin` `5a61bbfd9d9b2a8f476456f55c67b621ac570671552cf772d011e52aa0542479`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5BE9	13728 bytes
`font_00_sfnt_off00004c42.bin` `3a0dc6ae441c1182785c51be901941c778c62ab2d961969d6d196b9c6d8b8382`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4C42	4640 bytes
`font_02_sfnt_off00008237.bin` `6eb6dc10772442e0a171449b3ad9ea08c1c32b4a400518bced4f54e1bea3f0f6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8237	9856 bytes
`font_03_sfnt_off0000a435.bin` `72e63660d8a7588804eadb04cd6787787639493e516b0886fc077bc4fb38dcb0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA435	16428 bytes

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