Malicious PDF — malware analysis report

Static analysis result for SHA-256 59137ea97be4b486…

MALICIOUS

PDF

44.9 KB Created: 2020-09-11 22:39:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7de0a35a4a53c83d107b35187f94fdae SHA-1: 038ddaec880abc77dfacdb5d6fd724bc48a37eba SHA-256: 59137ea97be4b486a17a090f92e302535de6f90d878559f73cc48adb1e205044
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains embedded links, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though partially corrupted, includes the text 'Umbrella cockatoo care guide' and a URL pointing to a redirector, suggesting a lure to a malicious site. The presence of a large number of external PDF links, many hosted on Shopify, further indicates a link farm or SEO poisoning attempt to drive traffic to malicious destinations.

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.club/wix?keyword=umbrella+cockatoo+care+guide
    • http://files.beasleycounselingservices.com/uploads/1/3/1/4/131438190/tutozotenerunas.pdf
    • http://files.ollivlogs.com/uploads/1/3/1/4/131453399/runukodifatinawokap.pdf
    • https://cdn.shopify.com/s/files/1/0435/6908/6619/files/sawuruwevedujirejuju.pdf
    • https://cdn.shopify.com/s/files/1/0431/2317/9677/files/ninedivejuronarupipo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8580/7269/files/rogiwipez.pdf
    • https://cdn.shopify.com/s/files/1/0469/3314/7803/files/adobe_reader_windows_10_free.pdf
    • https://cdn.shopify.com/s/files/1/0432/6345/9496/files/tigorigezimidivujitudol.pdf
    • https://static.usrfiles.com/ugd/29c71c_86f6e738045c48189d62b046352503fd.pdf
    • https://cdn.shopify.com/s/files/1/0436/9124/5733/files/mubikozibupanagozun.pdf
    • https://cdn.shopify.com/s/files/1/0461/9154/2423/files/cissp_endorsement_form.pdf
    • https://cdn.shopify.com/s/files/1/0430/3287/1074/files/79809632993.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.

FilenameKindSourceSize
font_00_sfnt_off000064ef.bin
c00f1a36be8537a3b440c6b17b8d801d4f24a29f1cc8aae6cd5e61b144bf0a50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64EF 5052 bytes
font_01_sfnt_off0000761d.bin
69a254d77796d5fa5096004706ef7af6f8e5042137082f30ed568e15170b68e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x761D 10100 bytes
font_02_sfnt_off000098c3.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x98C3 4324 bytes

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