PDF malware analysis — malicious · cb511e0ac0b08779

MALICIOUS

PDF

44.7 KB Created: 2020-08-24 20:47:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5a89ae0110a47a96300348d98ae95967 SHA-1: 7a97090945fc0bd8aa1863a87dc3d691443a166f SHA-256: cb511e0ac0b0877991a6ae86009ad4214a5c23c62d59d2678be3bdb89bd02ab9

136 Risk Score

Malware Insights

MITRE ATT&CK

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

The PDF file contains multiple heuristics indicating malicious intent, including a link to a known malicious redirector and a large number of external PDF links, suggesting a link farm. The document body contains elements of urgency and payment lures. The primary malicious IOC is the redirector URL, which likely leads to a phishing or malware distribution site.

Heuristics 5

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.
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
Fake invoice / payment lure low SE_INVOICE_LURE

Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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=android+pay+watch+2019
- http://rimifip.montrealmusiciansexchange.com/uploads/1/3/1/4/131483603/toluximo.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51507598499.pdf
- https://cdn.shopify.com/s/files/1/0433/1870/6341/files/gabiza.pdf
- https://cdn.shopify.com/s/files/1/0441/0369/6536/files/apec_roes-_50_manual.pdf
- https://cdn.shopify.com/s/files/1/0431/4251/2802/files/delitos_contra_la_administracion_publica_libros.pdf
- https://cdn.shopify.com/s/files/1/0432/4245/5195/files/67513622609.pdf
- https://cdn.shopify.com/s/files/1/0431/2514/5760/files/bertolt_brecht_poems.pdf
- https://cdn.shopify.com/s/files/1/0434/4853/3144/files/wajidisid.pdf
- https://cdn.shopify.com/s/files/1/0431/5866/7430/files/damumovuted.pdf
- https://cdn.shopify.com/s/files/1/0437/6687/4266/files/11680176455.pdf
- https://cdn.shopify.com/s/files/1/0437/8597/8013/files/23645046689.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_off00006488.bin` `6b1886100909a5777bb30fc7b7be00bba8ed48ad5f5b392b7a0cb4783a0739ac`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6488	3016 bytes
`font_01_sfnt_off00006f42.bin` `517cd09745c231cbbdd1934db6511252bd9c560eca5e23f3b6384348341b2205`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6F42	5616 bytes
`font_02_sfnt_off0000826d.bin` `017fe260335a40aef98eb3e0f3358eb9e5166aeb2069bd97995240af70293355`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x826D	10432 bytes

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