Malicious PDF — malware analysis report

Static analysis result for SHA-256 56defd9f0929d1a3…

MALICIOUS

PDF

39.9 KB Created: 2020-08-18 16:24:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4dd6895942b7455b42010a1f892e6070 SHA-1: a7afc7731de9a03c16408512ea5092ec4b673db3 SHA-256: 56defd9f0929d1a39a5169a5ae8109a3e470d1fb6d23abe2c71e92d717b26aff
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing for a malicious redirector. One of the primary links, 'https://ttraff.cc/pify?keyword=acdisplay+apk+mirror', is identified as a malicious redirector. The document also exhibits characteristics of a link farm, with numerous links pointing to external PDFs, many hosted on shopify.com. The presence of these links suggests an attempt to direct users to malicious content or phishing pages.

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=acdisplay+apk+mirror
    • http://mopamoma.biblestudygr.org/uploads/1/3/0/7/130774965/jebisulobatoxefobefi.pdf
    • http://files.samahanfilamheritage.org/uploads/1/3/2/6/132681153/7286031.pdf
    • http://files.malonesfoods.com/uploads/1/3/0/8/130874493/1738718.pdf
    • http://napaz.allwellbreaksloose.com/uploads/1/3/1/4/131437402/webadevesorefagut.pdf
    • https://cdn.shopify.com/s/files/1/0430/8638/1210/files/32837900367.pdf
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/19656576434.pdf
    • https://cdn.shopify.com/s/files/1/0437/0032/2458/files/isometric_drawing_problems.pdf
    • https://cdn.shopify.com/s/files/1/0440/5608/4630/files/vaved.pdf
    • https://cdn.shopify.com/s/files/1/0429/7667/3946/files/58198883763.pdf
    • https://cdn.shopify.com/s/files/1/0434/5656/1318/files/25071017434.pdf
    • https://cdn.shopify.com/s/files/1/0439/5070/2750/files/xobeburofoxeluvuke.pdf
    • https://cdn.shopify.com/s/files/1/0440/0611/3430/files/nijawegidiximutelakizu.pdf
    • https://cdn.shopify.com/s/files/1/0434/6413/0726/files/ugly_sweater_party_template.pdf
    • https://cdn.shopify.com/s/files/1/0430/6065/8333/files/pinagezovevewolukefe.pdf
    • https://cdn.shopify.com/s/files/1/0438/9509/5464/files/sukisexupekav.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/81603963226.pdf
    • https://cdn.shopify.com/s/files/1/0433/2666/8952/files/astro_a50_manual_gen_2.pdf
    • https://cdn.shopify.com/s/files/1/0434/3808/0167/files/43146800479.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_off000049e2.bin
ca1a677d12ed4ad3feacc44353e5e62dc938454bc69203ec87cc581675727a06
pdf-font-stream PDF embedded font (sfnt) at offset 0x49E2 5376 bytes
font_01_sfnt_off00005c0f.bin
1ba0146cfc4efb553ce467b9c10ab60c06a3ca94ddb9e67ca864f971d31a923e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C0F 9764 bytes
font_02_sfnt_off00007dcb.bin
050cca2678d7435c270027ff58d84efa212ea3c5592871ae9bdc0d1e185112d0
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DCB 16076 bytes