Malicious PDF — malware analysis report

Static analysis result for SHA-256 42f2a6214cf1860d…

MALICIOUS

PDF

46.0 KB Created: 2020-08-21 22:46:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5105ef8c81989e3027c85d56a7d370e6 SHA-1: 40472d47fb1a800c4b7fa52e11286a53a4920f54 SHA-256: 42f2a6214cf1860d462faaa2964bbd2a34c4a401624c080a758211c3b0f2bddb
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=bloodborne+dlc+guide'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links, many hosted on shopify.com. The document body, though heavily obfuscated, contains the same redirector URL, suggesting the primary intent is to lure users to malicious infrastructure via a deceptive 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=bloodborne+dlc+guide
    • http://files.eastcincyogaschool.com/uploads/1/3/0/7/130738988/fanewidop.pdf
    • http://konuf.coheartgallery.org/uploads/1/3/1/3/131381021/320029.pdf
    • http://foken.barbzipperer.org/uploads/1/3/0/7/130775380/d4056548b.pdf
    • https://cdn.shopify.com/s/files/1/0438/4397/7366/files/bitaziv.pdf
    • https://cdn.shopify.com/s/files/1/0433/9102/5306/files/dudutozilorigasozamu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6220/6357/files/rudolakevaketesiwi.pdf
    • https://cdn.shopify.com/s/files/1/0437/3990/6197/files/install_gcc_ubuntu_16._04.pdf
    • https://cdn.shopify.com/s/files/1/0428/7476/5475/files/libodezeguku.pdf
    • https://cdn.shopify.com/s/files/1/0437/8624/0162/files/37456226117.pdf
    • https://cdn.shopify.com/s/files/1/0429/3342/0199/files/ponijodapebu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0677/8784/files/nexano.pdf
    • https://cdn.shopify.com/s/files/1/0431/7295/4269/files/4166785735.pdf
    • https://cdn.shopify.com/s/files/1/0435/4942/5823/files/differential_and_integral_calculus_formula.pdf
    • https://cdn.shopify.com/s/files/1/0430/6223/1201/files/oral_b_triumph_professional_care.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73470001672.pdf
    • https://cdn.shopify.com/s/files/1/0430/3942/4665/files/pasagalasujunovadek.pdf
    • https://cdn.shopify.com/s/files/1/0438/4774/5698/files/55031229163.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_off00006331.bin
5a85f7b6c74768e7696ddad0d0dd5e5835440aaceca158e6508cdd7b64071495
pdf-font-stream PDF embedded font (sfnt) at offset 0x6331 5704 bytes
font_01_sfnt_off000076d8.bin
2de2fd2a5ba4d67f6978d9b79fbc90db2c49d8c2e561ab31c9b8ff23369dd49b
pdf-font-stream PDF embedded font (sfnt) at offset 0x76D8 4908 bytes
font_02_sfnt_off00008796.bin
5c6a4192b43c740d5cd2f2c444ccc1b234f31f1fbdf25079b51c3bab7040705e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8796 10380 bytes