Malicious PDF — malware analysis report

Static analysis result for SHA-256 c94729c0b5998382…

MALICIOUS

PDF

40.2 KB Created: 2020-08-22 19:28:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5fabf89dfeb8d67c4d549a2f129c7a91 SHA-1: b030870a97a6c3e96022d1d3a12008a0ae3558f0 SHA-256: c94729c0b59983824e8691ec11e932ca515fefad91ee2a935c665d289ed234a0
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at `ttraff.ru`. The document body, though heavily obfuscated, contains the text 'Messenger new version apk 2019' and the malicious URL, suggesting a lure to trick users into downloading potentially malicious applications or visiting phishing sites. The presence of a link farm and a malicious redirector indicates a campaign focused on driving traffic to malicious infrastructure.

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=messenger+new+version+apk++2019
    • http://kixobog.mlbullock.com/uploads/1/3/1/8/131856462/jevazulogeful.pdf
    • http://bumuto.enotecaathena.com/uploads/1/3/1/3/131381130/xefop.pdf
    • http://mupiwus.waipapalandscapesupplies.com/uploads/1/3/1/3/131380485/tovojadarewogunoti.pdf
    • http://files.houghtonrangersjuniors.co.uk/uploads/1/3/0/7/130775014/zidumaragizuf.pdf
    • https://cdn.shopify.com/s/files/1/0432/2541/5843/files/sys_socket._h.pdf
    • https://cdn.shopify.com/s/files/1/0434/1596/1762/files/52416151494.pdf
    • https://cdn.shopify.com/s/files/1/0430/6989/8903/files/deep_ecology_project.pdf
    • https://cdn.shopify.com/s/files/1/0428/5690/6918/files/zisulixun.pdf
    • https://cdn.shopify.com/s/files/1/0437/1460/9303/files/52950952176.pdf
    • https://cdn.shopify.com/s/files/1/0440/2823/1830/files/nomenclatura_de_los_materiales_metalicos.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/japoxotoruzub.pdf
    • https://cdn.shopify.com/s/files/1/0428/8161/3987/files/56178604853.pdf
    • https://cdn.shopify.com/s/files/1/0433/6451/5994/files/rubir.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_off0000520c.bin
2c538e2bf4b7eed01b400fda278422ecf7bab3d0a10f7cd076340694f80381c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x520C 5364 bytes
font_01_sfnt_off00006468.bin
580fa445928626955a1d8f48cdf0b7f453a0e70bed19a3ee4133965f7b369e61		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6468 9816 bytes
font_02_sfnt_off00008613.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8613 4324 bytes

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