PDF malware analysis — malicious · f33687a9f10a8fd8

MALICIOUS

PDF

53.5 KB Created: 2020-08-31 20:12:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 8c40224a506fa39836291f72ac7d21ac SHA-1: 3d05225f2f97b5266793a28018ac86f0025eb728 SHA-256: f33687a9f10a8fd8dd9d956d44761f91e95470fb356fa9538169c8ccd242ad6f

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to malicious infrastructure. The document body, though heavily obfuscated, contains the URL https://ttraff.cc/wix?keyword=relation+and+function+questions+and+answers, presented as a lure for "Relation and function questions and answers". This URL is the primary indicator of malicious intent, likely leading to a phishing or malware download site.

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/wix?keyword=relation+and+function+questions+and+answers
- https://cdn.shopify.com/s/files/1/0462/6179/7013/files/arslan_senki_op_1.pdf
- https://cdn.shopify.com/s/files/1/0429/5242/5631/files/xakudavivafozokinef.pdf
- https://cdn.shopify.com/s/files/1/0470/9299/0110/files/red_dragon_gaming_mouse_driver.pdf
- https://cdn.shopify.com/s/files/1/0435/7373/9675/files/28849646330.pdf
- https://cdn.shopify.com/s/files/1/0466/2552/1829/files/58740408663.pdf
- https://cdn.shopify.com/s/files/1/0427/6033/9623/files/xisunatibexobogoka.pdf
- https://static.usrfiles.com/ugd/71fd01_e3badd57eb44456c9b05e1328b547e09.pdf
- https://static.usrfiles.com/ugd/8b2c09_10934dc78f14410f86719468879d35ff.pdf
- https://static.usrfiles.com/ugd/63022f_b4d48757a0444f37ae534766a3f097f9.pdf
- https://static.usrfiles.com/ugd/b8c837_0a16c96112e843a8bfeef89f46da619b.pdf
- https://static.usrfiles.com/ugd/b8c837_e334b50ff0814d4296a42551ef71dad4.pdf
- https://cdn.shopify.com/s/files/1/0435/5863/3631/files/ncert_beehive_book_class_9.pdf
- https://cdn.shopify.com/s/files/1/0434/4433/8838/files/gidadoxi.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
`font_00_sfnt_off000065d4.bin` `c175e8c2482cf21d2c9cc36e1da0b3003f53ecc3151e2c2ec50cb8ae4c9b4877`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65D4	5124 bytes
`font_01_sfnt_off0000775b.bin` `a29eec3bb323bb305c8c40d52f82ebce3cab3dd6e3620beba18f93ecd22d6c42`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x775B	13916 bytes
`font_02_sfnt_off0000a39a.bin` `5d0fcf509807d64ba92d638707efdf5c62a48cc61b3b959a087b25ea21635e57`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA39A	16504 bytes
`font_03_sfnt_off0000ba32.bin` `b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBA32	4324 bytes

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