Malicious PDF — malware analysis report

Static analysis result for SHA-256 d494917c5b7740cb…

MALICIOUS

PDF

50.5 KB Created: 2020-08-20 18:04:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84d4401091e1c2079bf3ef9fc6ee3c9b SHA-1: 8252d9b374e69b20ea2b7de48a70ace946dd9b46 SHA-256: d494917c5b7740cb87a904aac637d8a1c3a084e2695f724b324968c72d647fe9
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=nationalist+movement+in+west+africa+pdf'. This suggests the document is designed to lure users to malicious infrastructure, likely for phishing or malware delivery. The presence of numerous other PDF links further supports a link-farming or redirection strategy.

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.ru/pify?keyword=nationalist+movement+in+west+africa+pdf
    • http://bofof.reapottery.com/uploads/1/3/0/9/130969060/tanivalunukijul_gojike_bibaf_bonob.pdf
    • http://files.milissweetstogo.com/uploads/1/3/2/7/132740804/valasu-vezimopoga.pdf
    • http://nupopi.bridgeways2balance.com/uploads/1/3/1/3/131381521/zabopezok_nosowedotira_jowoniwoke_korewatetezofuv.pdf
    • http://files.randygreermusic.com/uploads/1/3/0/8/130813827/7912047.pdf
    • http://files.toastandeggsvt.com/uploads/1/3/0/9/130970022/9512693.pdf
    • https://cdn.shopify.com/s/files/1/0437/0749/8647/files/17465905729.pdf
    • https://cdn.shopify.com/s/files/1/0440/3943/8501/files/57356107496.pdf
    • https://cdn.shopify.com/s/files/1/0430/9945/5642/files/64169822630.pdf
    • https://cdn.shopify.com/s/files/1/0428/8770/8825/files/alcohol_120_retail_version.pdf
    • https://cdn.shopify.com/s/files/1/0429/6730/2295/files/korea_customs_declaration_form.pdf
    • https://cdn.shopify.com/s/files/1/0434/7691/0242/files/vuwowuma.pdf
    • https://cdn.shopify.com/s/files/1/0427/6187/9719/files/93663291429.pdf
    • https://cdn.shopify.com/s/files/1/0429/3056/9382/files/62071017139.pdf
    • https://cdn.shopify.com/s/files/1/0433/0255/1716/files/jopilazudi.pdf
    • https://cdn.shopify.com/s/files/1/0436/0133/0340/files/laboratory_equipments.pdf
    • https://cdn.shopify.com/s/files/1/0431/1947/6896/files/kivutotuxunage.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_off00007a66.bin
3422e053d3c3965e5d39d731f53822f77b8af124b823429a84d175cdadff68fe
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A66 5208 bytes
font_01_sfnt_off00008c14.bin
e1614f08ea4b166ced20af657bc3680f928239d8985fef05bba0c86111d962c9
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C14 10176 bytes
font_02_sfnt_off0000aee3.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0xAEE3 4324 bytes