PDF malware analysis — malicious · c9893f4b5d73bad4

MALICIOUS

PDF

52.3 KB Created: 2020-08-11 09:19:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 461384a3009b173e93d5502cbb18985c SHA-1: f8476db9df5c52ec7ebae3899386b2eacf2ea160 SHA-256: c9893f4b5d73bad44ea971ec542250c0b56e2847f0e991ef201e7d1adce5019f

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wb?keyword=advertising%20and%20sales%20promotion%20management%20pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting it's the primary lure. The file also exhibits characteristics of a link farm, with numerous external PDF links, indicating a potential SEO poisoning or spamming campaign. No scripts were extracted from this sample.

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/wb?keyword=advertising%20and%20sales%20promotion%20management%20pdf
- http://files.bracedental.net/uploads/1/3/1/3/131380288/6598131.pdf
- http://files.g3valeting.co.uk/uploads/1/3/0/7/130775484/lajazizimuk-pavikasufuro-tutulufurugum-tojin.pdf
- http://buzokupo.swagefitness.com/uploads/1/3/1/6/131606349/fisidexaxaxomuzi.pdf
- http://kisevew.savannahwallett.com/uploads/1/3/1/4/131407995/miwigabakul_kijogovo_watijitinex.pdf
- https://cdn.shopify.c
- https://cdn.shopify.com/s/files/1/0434/1910/7480/files/maxetuwiwefubata.pdf
- https://cdn.shopify.com/s/files/1/0433/4495/3509/files/52575078155.pdf
- https://cdn.shopify.com/s/files/1/0437/4446/0951/files/34124669109.pdf
- https://cdn.shopify.com/s/files/1/0434/4751/7350/files/suxigowizoseg.pdf
- https://cdn.shopify.com/s/files/1/0432/9875/0619/files/arcos_e_angulos_na_circunferencia.pdf
- https://cdn.shopify.com/s/files/1/0432/3010/1668/files/57976332002.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84574839703.pdf
- https://cdn.shopify.com/s/files/1/0439/8697/6926/files/vilinofilixofamutefu.pdf
- https://cdn.shopify.com/s/files/1/0432/4494/5571/files/zabemajiz.pdf
- https://cdn.shopify.com/s/files/1/0436/1152/1187/files/dnd_5e_divine_sense.pdf
- https://cdn.shopify.com/s/files/1/0431/5293/3024/files/42837386340.pdf
- https://cdn.shopify.com/s/files/1/0433/6353/2951/files/miopa_hipermetropa_y_astigmatismo.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_off00008e2c.bin` `440a1c5b2342370e1fce55efe7d5438cdc4074166763fd65f42e935f874e336a`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E2C	5412 bytes
`font_01_sfnt_off0000a083.bin` `1278b2c8c01e440072781cde2b43ab16a8db7c579d8274b1a5500ae925745d81`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA083	10336 bytes

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