PDF malware analysis — malicious · 7d0f2d4315fbfc97

MALICIOUS

PDF

50.0 KB Created: 2020-09-01 06:22:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 450f0c72a58af50ba6567ba9fcb2bd03 SHA-1: f6dbf405be541520786410d9b27d58af2a61aa8d SHA-256: 7d0f2d4315fbfc9725b4eb376675b2320ea2895f284b958c96406f66e30633fb

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was identified as malicious due to a critical heuristic firing for a malicious redirector link. It also contains a large number of embedded links, suggesting a link farm or SEO manipulation tactic. The primary malicious URL identified is ttraff.ru, which is likely used to redirect users to further malicious content. No scripts were extracted, and the document body is heavily obfuscated, limiting further analysis of its specific intent beyond link distribution.

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.ru/wix?keyword=bts+love+yourself+answer+l+version+photos
- https://cdn.shopify.com/s/files/1/0434/6917/6992/files/non_aggiornare_applicazioni_android.pdf
- https://cdn.shopify.com/s/files/1/0440/6778/2808/files/calculus_1_solved_problems.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/71135401618.pdf
- https://cdn.shopify.com/s/files/1/0429/1425/0905/files/60064980185.pdf
- https://cdn.shopify.com/s/files/1/0428/4094/8892/files/williams_hematology_10th_edition.pdf
- https://cdn.shopify.com/s/files/1/0429/9853/0202/files/74193113424.pdf
- https://cdn.shopify.com/s/files/1/0434/6816/1184/files/92417019145.pdf
- https://cdn.shopify.com/s/files/1/0427/9389/4044/files/kujedapisukizi.pdf
- https://cdn.shopify.com/s/files/1/0456/4808/5159/files/calculating_volume_and_surface_area_worksheets.pdf
- https://cdn.shopify.com/s/files/1/0433/7234/7550/files/wejidat.pdf
- https://cdn.shopify.com/s/files/1/0431/8471/7979/files/67513010126.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 5

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005571.bin` `c89e2b105208c329d29c4c4dfbde95a64824251774eabf07b35c5d64155c49c3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5571	3400 bytes
`font_01_sfnt_off00006183.bin` `96909d6122be900d378ffa1cd8565be1850e43e55cfc496deda680ae90295dfd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6183	5292 bytes
`font_02_sfnt_off0000739b.bin` `32b8bf964ca88c11a10eaf3b84cae3b361d78a9f7b0b028cc1771e0a6ee2df9d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x739B	10268 bytes
`font_03_sfnt_off00009705.bin` `a0716ff3c5d03b95d6b260c2ac20f00301f6767eaf838c0b86e3a5fe4ab2e892`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9705	16852 bytes
`font_04_sfnt_off0000af33.bin` `54d5972760ba3b7c3a9e6b75de958ff2bd2a654b33cdefeb9b164848c4a5dda4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAF33	1932 bytes

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