PDF malware analysis — malicious · d7b90bd631ee4bb7

MALICIOUS

PDF

43.8 KB Created: 2020-07-18 23:16:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: dc42d7d6171279aa85e427e4bee02cbd SHA-1: 709913a42a7529c974912786f4d2765ae2874a30 SHA-256: d7b90bd631ee4bb7a3e9b3f1e51cd3d55813419976d0be518ef23b5c0363873b

128 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains heuristics indicating it's a malicious redirector and a link farm, disguised as an invoice or payment lure. It embeds a URL that leads to a redirector, likely to obscure the final malicious destination. No scripts were extracted from this sample.

Heuristics 4

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.
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.com/wb?keyword=cedente%20sicoob%20manual
- http://files.kprealtors.org/uploads/1/3/0/7/130739099/3133850.pdf
- http://files.evolutionarytransformationsgroup.com/uploads/1/3/1/3/131398517/c300cb10.pdf
- http://files.gulfshrimpco.com/uploads/1/3/1/1/131164047/23ffe5fbd5ed.pdf
- http://files.jeffkirchoff.com/uploads/1/3/0/9/130969772/zovixomejuwujo.pdf
- https://tamiriwuwaxo.files.wordpress.com/2020/07/7630423321.pdf
- https://mirexudokof.files.wordpress.com/2020/06/panoxagupodevelekolana.pdf
- https://rakopag.files.wordpress.com/2020/07/85995018523.pdf
- https://fizipam.files.wordpress.com/2020/07/44650687915.pdf
- https://pafezobikata.files.wordpress.com/2020/06/74796095977.pdf
- https://sosugenusoz.files.wordpress.com/2020/07/70620852968.pdf
- https://bijugodipudi.files.wordpress.com/2020/06/32442719871.pdf
- https://cdn.shopify.com/s/files/1/0433/2388/3688/files/59709680479.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/niborenegukudokeregus.pdf
- https://cdn.shopify.com/s/files/1/0434/7399/3890/files/votisevabaduso.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fejatomamegebuwugibuvu.pdf
- https://cdn.shopify.com/s/files/1/0427/7554/3964/files/sowatuxisojorolituwev.pdf
- https://cdn.shopify.com/s/files/1/0428/0310/1863/files/68665415269.pdf
- https://cdn.shopify.com/s/files/1/0430/9545/7946/files/9434041472.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/
- https://pafezobikata.files.wordpress.com/2020/06

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00006f2e.bin` `f63d8e2732651500885f27677f84c3ebdf63619eb359cab873e01627f498b87e`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6F2E	5036 bytes
`font_01_sfnt_off00008031.bin` `3de966470f6c906e954f7eb1e337ada4ee0b9bf1fb06407bfd07c6ff2685dbfc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8031	9964 bytes

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