PDF malware analysis — malicious · bb57b8c481551ac0

MALICIOUS

PDF

44.5 KB Created: 2020-08-09 12:14:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 6c27e1e68fadab6c179939f84304efca SHA-1: 2793bc96787e4f90e19eca7152296f6bd7274a35 SHA-256: bb57b8c481551ac0f8c61422ba14485873f7746035c072783096a07894d033d4

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=budget+planner+book+pdf'. This indicates the document is designed to redirect users to malicious infrastructure. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm for SEO manipulation or to obscure the final malicious destination. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector is the primary indicator of malicious intent.

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=budget+planner+book+pdf
- http://files.beheadstrong.org/uploads/1/3/0/9/130969897/bojepulubirutogo.pdf
- http://files.spokenwordministry.org/uploads/1/3/0/9/130969298/d59387e740.pdf
- http://files.dragonflypaddleyoga.com/uploads/1/3/2/6/132695694/276668.pdf
- http://files.gracetherapymaui.com/uploads/1/3/2/6/132696500/sotofid.pdf
- https://cdn.shopify.com/s/files/1/0437/6448/2202/files/7826117741.pdf
- https://cdn.shopify.com/s/files/1/0433/9289/3093/files/vabixozovusapu.pdf
- https://cdn.shopify.com/s/files/1/0431/9654/7230/files/fisidogoxuxuzapanavi.pdf
- https://cdn.shopify.com/s/files/1/0431/6761/3090/files/81396653148.pdf
- https://cdn.shopify.com/s/files/1/0438/2749/5074/files/pidikilikujakef.pdf
- https://cdn.shopify.com/s/files/1/0429/4151/3894/files/417957831.pdf
- https://cdn.shopify.com/s/files/1/0431/5833/9733/files/77626489681.pdf
- https://cdn.shopify.com/s/files/1/0432/5982/2243/files/nuvekuxe.pdf
- https://cdn.shopify.com/s/files/1/0431/4339/7525/files/walika.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tanedikefiresemur.pdf
- https://cdn.shopify.com/s/files/1/0430/4571/6129/files/varuxokawuginulave.pdf
- https://cdn.shopify.com/s/files/1/0433/5783/1326/files/22270240033.pdf
- https://cdn.shopify.com/s/files/1/0433/7503/4520/files/xegigufuk.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_off00007014.bin` `11b1a4d6f19802c9144293003ed86ca8db5bbba9f75efca82576dd8b3861c683`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7014	5284 bytes
`font_01_sfnt_off00008220.bin` `6220e1fafdcdce1fd7d5c7afcbab0a9794af75f82cb033f3ee0ff67bd33f46b0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8220	10284 bytes

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