Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc2835576d399fd4…

MALICIOUS

PDF

37.0 KB Created: 2020-08-03 10:18:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 622f3038dab82ea90d1740b5379fd09c SHA-1: 48b5db84be835af88b5dfd1ab868e5b662e20107 SHA-256: fc2835576d399fd49991bf72f875bd5a6a53d69d18ab6df7a7aba0424dcbebcb
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, many of which point to Shopify domains hosting other PDFs, forming a link farm. One of the primary links, https://ttraff.ru/pify?keyword=homelite+weed+wacker, is identified as a malicious redirector. This indicates the document's purpose is to lure users through a chain of redirects, likely to a phishing page or a site hosting malware. No scripts were extracted from this sample.

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=homelite+weed+wacker
    • http://files.madebyhollie.com/uploads/1/3/0/8/130813364/4145576.pdf
    • http://files.perthcommunitychoir.com/uploads/1/3/0/7/130775949/xalolaxifagi.pdf
    • http://files.edgeinsuranceservices.com/uploads/1/3/0/7/130776819/wivonesewixati_safogosavug.pdf
    • https://cdn.shopify.com/s/files/1/0432/2518/6466/files/gadububoguladoravipopet.pdf
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/gegupilafugevupipogiv.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66689816557.pdf
    • https://cdn.shopify.com/s/files/1/0430/9699/8041/files/25219641606.pdf
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/45743146154.pdf
    • https://cdn.shopify.com/s/files/1/0430/4420/8789/files/bikobepoximo.pdf
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/jukewotesavatijabazavano.pdf
    • https://cdn.shopify.com/s/files/1/0434/3352/5400/files/pazijejur.pdf
    • https://cdn.shopify.com/s/files/1/0438/5102/2501/files/example_of_elaborative_rehearsal.pdf
    • https://cdn.shopify.com/s/files/1/0430/2045/1997/files/48107142777.pdf
    • https://cdn.shopify.com/s/files/1/0433/7205/2643/files/6791038325.pdf
    • https://cdn.shopify.com/s/files/1/0433/6012/5080/files/kujufoladutefobope.pdf
    • https://cdn.shopify.com/s/files/1/0435/9087/7339/files/jowanitisezoru.pdf
    • https://cdn.shopify.com/s/files/1/0431/5850/3590/files/15499112707.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_off000048ce.bin
16937b22f4bf4c33dd420258809187faf0bc2bd6475be15ad6cd6ab94cb137b6
pdf-font-stream PDF embedded font (sfnt) at offset 0x48CE 4704 bytes
font_01_sfnt_off000058d6.bin
bc24ea1aff88ee64bdb158d1b2279546e9249c87bc49eb93e321f7fed4b67908
pdf-font-stream PDF embedded font (sfnt) at offset 0x58D6 9436 bytes
font_02_sfnt_off00007927.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0x7927 4324 bytes