Malicious PDF — malware analysis report

Static analysis result for SHA-256 58568dc9fd9a684d…

MALICIOUS

PDF

43.4 KB Created: 2020-08-14 02:29:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c6f2928e1e9048a953a6fca2f2ee14c SHA-1: 395c01c48b6d76b78bf55d0346915a4e6711a55d SHA-256: 58568dc9fd9a684d072f35c1b048bc6a2b44e9ed2bab82d1b89b68cb01781133
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=ck2+khazaria+guide'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL, reinforcing its malicious intent. The primary goal appears to be directing users to malicious infrastructure via the embedded link.

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.cc/pify?keyword=ck2+khazaria+guide
    • http://files.athletebyscience.com/uploads/1/3/0/7/130776589/6263840.pdf
    • http://files.kristynlanggundlach.com/uploads/1/3/2/6/132681579/zawakosiwojufokamumo.pdf
    • http://files.ellibrodeespanol3.com/uploads/1/3/1/0/131069824/fajawefugedurukexovu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1448/7207/files/archer_c20_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/1463/6198/files/nixuvojopovenulanusar.pdf
    • https://cdn.shopify.com/s/files/1/0431/2036/1629/files/raw_till_4_ebook.pdf
    • https://cdn.shopify.com/s/files/1/0437/2375/1575/files/sefumawise.pdf
    • https://cdn.shopify.com/s/files/1/0433/7316/6757/files/29373647938.pdf
    • https://cdn.shopify.com/s/files/1/0429/5360/5273/files/fofaluz.pdf
    • https://cdn.shopify.com/s/files/1/0434/8523/3304/files/rewasuzibosoganumutonejor.pdf
    • https://cdn.shopify.com/s/files/1/0438/1392/9122/files/antrenmanlarla_geometri_10._snf.pdf
    • https://cdn.shopify.com/s/files/1/0431/3595/9202/files/41342956468.pdf
    • https://cdn.shopify.com/s/files/1/0436/2302/2752/files/adding_decimals_word_problems_worksheet.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d43.bin
ded9c3f99117140ee9cf4c7f4687c59c8c2393ec67d3c51fc20451b6fbc4aa29
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D43 5028 bytes
font_01_sfnt_off00007e58.bin
b8b9432d5f00dd0e951b4099307dfd38407ecf2a7ff57dc13644aae3aa6f8bc4
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E58 10136 bytes