PDF malware analysis — malicious · 2db5d9781a0f3e9a

MALICIOUS

PDF

63.9 KB Created: 2020-07-31 06:23:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 44979796869e686d553352a4097efb20 SHA-1: d75c92012c9b905257a84ea84c41da08a31a1d87 SHA-256: 2db5d9781a0f3e9aac51b9956e7b5557f40bd3240eae348a7502bc6bf5cc26e0

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The primary malicious URL, 'https://ttraff.cc/pify?keyword=computer+general+knowledge+questions+and+answers+pdf+free+download', is designed to redirect users to potentially harmful content. The document body, though heavily truncated, suggests a lure related to 'computer general knowledge questions and answers pdf free download', aligning with the observed malicious redirection.

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=computer+general+knowledge+questions+and+answers+pdf+free+download
- http://files.skatehawaii.org/uploads/1/3/0/7/130739204/wugusedaxanugogaf.pdf
- http://files.simplifiedcomm.com/uploads/1/3/1/4/131437680/9977842.pdf
- http://files.uniontemplefwb.org/uploads/1/3/2/6/132695663/rowon.pdf
- https://cdn.shopify.com/s/files/1/0431/2930/7293/files/26949229715.pdf
- https://cdn.shopify.com/s/files/1/0428/9213/2508/files/tomawifurugova.pdf
- https://cdn.shopify.com/s/files/1/0434/5744/6050/files/46750701832.pdf
- https://cdn.shopify.com/s/files/1/0429/5698/0377/files/18390476518.pdf
- https://cdn.shopify.com/s/files/1/0436/4143/8366/files/vopamunotar.pdf
- https://cdn.shopify.com/s/files/1/0428/3046/3135/files/1428805458.pdf
- https://cdn.shopify.com/s/files/1/0433/4669/0203/files/51304720216.pdf
- https://cdn.shopify.com/s/files/1/0428/3292/0739/files/kexerebodufedo.pdf
- https://cdn.shopify.com/s/files/1/0430/4296/3613/files/rapef.pdf
- https://cdn.shopify.com/s/files/1/0436/8993/5002/files/metakilosipubovoli.pdf
- https://cdn.shopify.com/s/files/1/0434/1301/2636/files/felekojiraruxo.pdf
- https://cdn.shopify.com/s/files/1/0430/8277/6729/files/51814855188.pdf
- https://cdn.shopify.com/s/files/1/0431/8960/0414/files/tutumulu.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_off0000aff0.bin` `9252eb9253bb78297b0ba3d960fa890e092bd670825e528ae671cae8ae5ad330`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAFF0	5548 bytes
`font_01_sfnt_off0000c2c3.bin` `ff5555ebd3a1b656d0e168cbaf29ca915033de1988c0c0bbe338cdd33dd93fe1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC2C3	2560 bytes
`font_02_sfnt_off0000cddb.bin` `5d6387f7d6315834ac377d53b9b500e2469b054538f012af2e427c0bb28f933b`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCDDB	10296 bytes

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