Malicious PDF — malware analysis report

Static analysis result for SHA-256 c82bb00cdf7845d1…

MALICIOUS

PDF

54.2 KB Created: 2020-08-11 21:30:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: febfe58b3256a0f7120e4017a2224d22 SHA-1: 872f52a9417b12ec08b8dcd98759eb1bdee1c1c5 SHA-256: c82bb00cdf7845d183dbd5a85e6fc9b80dbe3f44306f12968574c0a3592df00d
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 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 same lure text and URLs as found in the heuristics, suggesting the primary purpose is to drive traffic to malicious infrastructure. 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=typhoid+in+pregnancy+pdf
    • http://files.veritasmissionfilms.com/uploads/1/3/1/4/131438202/1563810.pdf
    • http://bagera.algodonesdentistry.com/uploads/1/3/1/0/131070036/b33d6a1e.pdf
    • http://pugizo.kicministries.org/uploads/1/3/1/3/131383544/6cc7a1ee09.pdf
    • http://deraduj.makeithealthy.com/uploads/1/3/2/8/132814930/zewunij-tezazafevi-gebufimegonit.pdf
    • http://files.albanytherapeuticridingcenter.com/uploads/1/3/0/7/130776344/3548635.pdf
    • https://cdn.shopify.com/s/files/1/0431/7980/2782/files/nupizobeg.pdf
    • https://cdn.shopify.com/s/files/1/0430/7694/4033/files/24342120401.pdf
    • https://cdn.shopify.com/s/files/1/0435/1862/3896/files/rizumubejuxilip.pdf
    • https://cdn.shopify.com/s/files/1/0434/7055/3238/files/68478434969.pdf
    • https://cdn.shopify.com/s/files/1/0431/9500/7137/files/zinigesu.pdf
    • https://cdn.shopify.com/s/files/1/0435/0581/1608/files/wosefefawolefupemilupi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/20880330559.pdf
    • https://cdn.shopify.com/s/files/1/0435/3540/1111/files/articulos_cientificos_en_ingles.pdf
    • https://cdn.shopify.com/s/files/1/0432/3885/0728/files/mikuxelifefofa.pdf
    • https://cdn.shopify.com/s/files/1/0434/5122/0133/files/kodemizogiju.pdf
    • https://cdn.shopify.com/s/files/1/0439/7580/3038/files/zamufazuvut.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_off00008930.bin
8b19169abaf05e26dc5fc1f06c2216f09f459c4865b17dd54172e9dd6c4afe78
pdf-font-stream PDF embedded font (sfnt) at offset 0x8930 5256 bytes
font_01_sfnt_off00009b0f.bin
0d8a37b8182fca32aa8f899fa356a954a4ff26c6c75fc7d1f3fd03ec7a0a55d9
pdf-font-stream PDF embedded font (sfnt) at offset 0x9B0F 10192 bytes
font_02_sfnt_off0000be27.bin
feb3a6e6f4194d564d04202cfa04e8bea74ac3b03d57dfff3cfd7a8c3a8fd3f2
pdf-font-stream PDF embedded font (sfnt) at offset 0xBE27 3416 bytes