PDF malware analysis — malicious · ac732f0d62c9ef22

MALICIOUS

PDF

39.0 KB Created: 2020-08-19 20:19:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 63421a211fde27183141be583bb177b9 SHA-1: 12b24b5c534e11921029d477037841d54f7b56a4 SHA-256: ac732f0d62c9ef228f04971a94c9337be4723531187a4042c8b2fc227078fa0d

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to known malicious infrastructure. Additionally, PDF_SEO_LINK_FARM indicates a large number of external links, many hosted on cdn.shopify.com, likely to obscure the malicious redirector. The document body contains the URL https://ttraff.cc/pify?keyword=affixes+worksheet+pdf+grade+3, which is the primary indicator of malicious intent, likely serving as a lure for further malicious activity.

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.cc/pify?keyword=affixes+worksheet+pdf+grade+3
- http://rewiz.babyblueeyesragdolls.com/uploads/1/3/1/3/131398455/ranuli_zutotut.pdf
- http://files.timothygage.com/uploads/1/3/1/4/131453540/polosekajoj.pdf
- http://files.cucornell.org/uploads/1/3/0/7/130775653/wegutalasux.pdf
- https://cdn.shopify.com/s/files/1/0431/8648/7456/files/atomistique_chimie.pdf
- https://cdn.shopify.com/s/files/1/0434/7127/4146/files/vavekazi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xozujegemuzudileruzodedus.pdf
- https://cdn.shopify.com/s/files/1/0440/6204/8421/files/digital_electronics_vtu_notes.pdf
- https://cdn.shopify.com/s/files/1/0430/7710/7865/files/simon_sinek_find_your_why.pdf
- https://cdn.shopify.com/s/files/1/0435/5116/2523/files/61045646792.pdf
- https://cdn.shopify.com/s/files/1/0432/4474/8950/files/61054549788.pdf
- https://cdn.shopify.com/s/files/1/0434/7356/7901/files/53095078683.pdf
- https://cdn.shopify.com/s/files/1/0433/4757/4943/files/14338317476.pdf
- https://cdn.shopify.com/s/files/1/0434/0816/2981/files/64507082231.pdf
- https://cdn.shopify.com/s/files/1/0435/8271/8115/files/bantu_education.pdf
- https://cdn.shopify.com/s/files/1/0434/7192/9496/files/52672595542.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_off00004a26.bin` `3d30aa50a1c3aeb15469f091727ab9c1e65f5c17b96ec736f3c484abdc91ae19`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4A26	5648 bytes
`font_01_sfnt_off00005d6e.bin` `0b8363bc9e07cf89205331d27bc1c31e4fc91592bb846ce71245372e642e4983`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5D6E	6148 bytes
`font_02_sfnt_off00006d4d.bin` `16878159e6e96aa402566764dc22424950369b3e2fcdfabfd1bab2f7330a4147`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6D4D	9812 bytes

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