PDF malware analysis — malicious · f269c588353ef631

MALICIOUS

PDF

42.5 KB Created: 2020-08-31 06:48:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 761ae5a45549f03c20f27582b24804ab SHA-1: a08a8ba9cf0478394b5faecefa38bdd4d437ddc2 SHA-256: f269c588353ef6319ab45e482c8a7555591dd63c1b58b1e738303d64b4c3361b

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with the primary link pointing to a known malicious redirector. This suggests a tactic to lure users to malicious sites, potentially for phishing or malware distribution. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external PDF links, likely for SEO manipulation or to obscure the malicious destination.

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/wix?keyword=free+comprehension+worksheets+for+10
- https://static.usrfiles.com/ugd/8a419d_206789d95ac24f8085992ce014f76ba7.pdf
- https://static.usrfiles.com/ugd/b8c837_fde0e5f9ecf94f0f8fa19f126ef7d74a.pdf
- https://static.usrfiles.com/ugd/73c254_7930542a452140eaaaccb26a670f188a.pdf
- https://static.usrfiles.com/ugd/91e123_2cbee5a16c084733af8c455ce880dcff.pdf
- https://static.usrfiles.com/ugd/de3d83_7420b55239b54a1d8c272e0b3f66b2a7.pdf
- https://static.usrfiles.com/ugd/f1780b_7066b06144a44f04814ac71e5f48bf99.pdf
- https://static.usrfiles.com/ugd/b8c837_ffee06910d8b4c089bd896cc3b6c75a7.pdf
- https://static.usrfiles.com/ugd/314c35_28126e79d12f41f498e69fb99f013d94.pdf
- https://static.usrfiles.com/ugd/d55797_ee89371e876447d8ab5ada0006d1baa2.pdf
- https://cdn.shopify.com/s/files/1/0429/7103/7855/files/aaa_travel_guides_japan.pdf
- https://cdn.shopify.com/s/files/1/0433/0166/6969/files/nusutemen.pdf
- https://cdn.shopify.com/s/files/1/0433/5638/9528/files/luzerixoji.pdf
- https://cdn.shopify.com/s/files/1/0444/0332/7142/files/general_chemistry_mcquarrie_solutions_manual.pdf
- https://cdn.shopify.com/s/files/1/0454/6953/2310/files/8374645661.pdf
- https://cdn.shopify.com/s/files/1/0429/1313/6799/files/mudaputo.pdf
- https://cdn.shopify.com/s/files/1/0429/6107/6387/files/kpmg_bursary_application_form_2020.pdf
- https://cdn.shopify.com/s/files/1/0461/4897/6803/files/amsco_apush_chapter_26.pdf
- https://cdn.shopify.com/s/files/1/0429/1959/2103/files/99467902001.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_off000066d1.bin` `b0c0e5dbb6b624e014dcbdad1c5945df6fde15fc1e1fe5434f2c86e4fa05bf68`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x66D1	5316 bytes
`font_01_sfnt_off000078e1.bin` `677d7d630ce085868eb38324e84ce6a331e972902b45aa7a8925f84c2b2a7761`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x78E1	10492 bytes

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