Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e1fd441a2984a72…

MALICIOUS

PDF

56.4 KB Created: 2020-09-19 07:29:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4c37d74e27fdd56aaea1a155b814aec1 SHA-1: 4e9bffffb1a7d614b58f3e68d32be12433787de2 SHA-256: 2e1fd441a2984a72574ce100a7b05703ef5d303e6b75db48bc39584ae01ef766
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one critical heuristic firing indicating it's a malicious redirector. The primary malicious URL identified is https://ttraff.link/wix?keyword=kingdom+hearts+birth+by+sleep+psp+melding+guide. The document body appears to be heavily obfuscated, but the presence of the malicious URL and the link farm heuristic strongly suggest a phishing or redirection attack.

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.link/wix?keyword=kingdom+hearts+birth+by+sleep+psp+melding+guide
    • http://files.paintersincentrallondon.co.uk/uploads/1/3/2/8/132814276/fezinogoxamapinato.pdf
    • http://rawejijij.1301university.com/uploads/1/3/1/3/131398348/lagam.pdf
    • http://witimis.drbgeography.com/uploads/1/3/1/4/131454440/a7002.pdf
    • http://files.4-ucorp.com/uploads/1/3/0/7/130739567/7385382.pdf
    • https://5bd4ed93-ff6f-43d4-aed8-f646dd6e8831.filesusr.com/ugd/d8966e_56f6f8a7885646fbbe587a7955396897.pdf?index=true
    • https://442c705a-213e-4e52-a9ec-4c5455595e97.filesusr.com/ugd/1479de_531886e3bac84a7ebdd5787a0aa74d97.pdf?index=true
    • https://6181ba12-faff-4819-b2a3-c6e4dffd8993.filesusr.com/ugd/e5a943_29dec0251ead446fb1cbe19a57eeb41d.pdf?index=true
    • https://87db592f-b913-483d-b6c4-2f9b8bd24cf4.filesusr.com/ugd/a474dd_938dd23d6ced41b6876c29186de4845d.pdf?index=true
    • https://a430c077-80b6-4b08-91cb-20ad0259bdf5.filesusr.com/ugd/592671_51ac742a44dc4c8e809251334a53a2c4.pdf?index=true
    • https://c10edef0-ffbd-4fdc-8323-b1f2c5adc260.filesusr.com/ugd/930050_803c7c7a2718428db386994807710380.pdf?index=true
    • https://edcc47e0-7194-4c5a-ad30-8f8398e1dd18.filesusr.com/ugd/77d535_63413b84b8234198bfae0f0719f44480.pdf?index=true
    • https://1b9156c8-a09e-4d12-a9db-1d9e594ef09c.filesusr.com/ugd/0cd019_79c55fce568b42c3b4dee5129ca5d2f4.pdf?index=true
    • https://5fc0b876-a0f8-443f-998b-bb5170a55a4f.filesusr.com/ugd/83b1b3_ddd81965e3e041c6b585a9b82d01effe.pdf?index=true
    • https://026559b9-6d98-4c37-a693-9043241f9a21.filesusr.com/ugd/72b0e7_7275cf336bac49bc917122573891ab4c.pdf?index=true
    • https://c29ba9c4-f356-4952-b072-a419e1e66160.filesusr.com/ugd/948cea_c6ef1520f37642ca95c87997ed08734d.pdf?index=true
    • https://525d74ee-430a-4ebe-8d5a-31bd211c901d.filesusr.com/ugd/3f8d85_2deb4564a32347e9ba2896cc98923c84.pdf?index=true
    • 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.

FilenameKindSourceSize
font_00_sfnt_off000093d9.bin
a78fb28e557e76d0a750505336590cdbf68f93803aa03a31d0deb31e1029f131
pdf-font-stream PDF embedded font (sfnt) at offset 0x93D9 5584 bytes
font_01_sfnt_off0000a6b0.bin
8c3a7f4c70d0edc9e28727d09819390dad21eebd3496439fafa6db2aba541da5
pdf-font-stream PDF embedded font (sfnt) at offset 0xA6B0 14732 bytes