PDF malware analysis — malicious · 52ba6279919c20ed

MALICIOUS

PDF

58.8 KB Created: 2020-08-06 12:51:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6085877ab60116931e2c9adda8ed2977 SHA-1: 007ce2e05f792f6549fa7e2de285146771260268 SHA-256: 52ba6279919c20ed57b5886ac0aa7cd9b0c70e9ec3a783b0ae3e1808010c6885

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains embedded links that point to a redirector service (ttraff.com). The document body text, though heavily obfuscated, contains the string 'Baixar pdf24 download' and the malicious URL, indicating a lure to trick users into downloading potentially harmful software or visiting malicious sites. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms the redirection to known malicious infrastructure.

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/pify?keyword=baixar+pdf24+download
- http://bipusoge.omanroadshow.com/uploads/1/3/1/4/131482962/5920616.pdf
- http://files.jadecaryromance.com/uploads/1/3/1/4/131406800/739c6f9f87e.pdf
- http://files.milanitroutcottages.com/uploads/1/3/1/0/131070246/1501894.pdf
- https://cdn.shopify.com/s/files/1/0429/1179/3315/files/mekewu.pdf
- https://cdn.shopify.com/s/files/1/0427/9477/8791/files/fibav.pdf
- https://cdn.shopify.com/s/files/1/0434/0006/9283/files/assentamento_funcional_digital.pdf
- https://cdn.shopify.com/s/files/1/0428/2764/5084/files/xazenug.pdf
- https://cdn.shopify.com/s/files/1/0432/8852/7006/files/twilight_eclipse_book.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/30617095305.pdf
- https://cdn.shopify.com/s/files/1/0432/0064/3236/files/34145724434.pdf
- https://cdn.shopify.com/s/files/1/0429/8162/1919/files/57686950586.pdf
- https://cdn.shopify.com/s/files/1/0432/4130/8320/files/xurizajofuwavawajofabot.pdf
- https://cdn.shopify.com/s/files/1/0437/1392/1189/files/lyman_reloading_manual_49th_edition.pdf
- https://cdn.shopify.com/s/files/1/0431/8887/9521/files/texiwe.pdf
- https://cdn.shopify.com/s/files/1/0431/5188/4445/files/67234561377.pdf
- https://cdn.shopify.com/s/files/1/0432/7846/7222/files/kujinexulatikovenokito.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_off00009c51.bin` `369457958f9037fd24e29490dd2ecafd9a0fa25eda882146e42e2245e5f9ab21`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9C51	2828 bytes
`font_01_sfnt_off0000a667.bin` `7f950bb0ed7001545cd69dfa872cfb1afb8eb798d435e67f07e1bce260829402`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA667	5288 bytes
`font_02_sfnt_off0000b898.bin` `f91359104e5c31ce7fbb298fcd5b4c170e6e0e080914a6dfeb33e77c5bd8ea6d`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB898	10832 bytes

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