Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2dfc2be3a7cd4dd…

MALICIOUS

PDF

65.3 KB Created: 2020-08-25 17:16:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c48b96f5f19bd9daf4efa56399124588 SHA-1: ae7deef8060c68d29c353b45086dca68f13463fb SHA-256: f2dfc2be3a7cd4dd9a9398ccd402ebb254986646360f12dea53609f95755d072
158 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains embedded JavaScript and a malicious redirector link that leads to a link farm of other PDFs. The document body text, though garbled, contains a reference to 'jabariya jodi full movie mkv', suggesting a lure to attract users. The primary malicious IOC is the redirector URL, which likely serves as a gateway to further malicious content. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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 JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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=jabariya+jodi+full+movie++mkv
    • http://bavebup.lakecountyiltransition.com/uploads/1/3/1/4/131438539/9653562.pdf
    • https://cdn.shopify.com/s/files/1/0434/1802/6141/files/42715945264.pdf
    • https://cdn.shopify.com/s/files/1/0431/5879/8492/files/berger_parker_index_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0432/7905/7056/files/6187629623.pdf
    • https://cdn.shopify.com/s/files/1/0432/0532/9064/files/48130827157.pdf
    • https://cdn.shopify.com/s/files/1/0432/0785/2192/files/xotakokerorafobopanu.pdf
    • https://cdn.shopify.com/s/files/1/0439/3975/8235/files/37589573090.pdf
    • https://cdn.shopify.com/s/files/1/0431/0928/6050/files/philosophy_of_atheism.pdf
    • https://cdn.shopify.com/s/files/1/0428/2331/9715/files/25445172590.pdf
    • https://cdn.shopify.com/s/files/1/0433/8152/2599/files/30042708018.pdf
    • https://cdn.shopify.com/s/files/1/0428/4379/9719/files/hernia_hiatal_elsevier.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000c79b.bin
89e16f98e3612ac420503743ce65f92dc386094ff507af313825898f50ad5ffb
decompressed-pdf-stream PDF FlateDecoded stream at offset 0xC79B 20404 bytes
font_00_sfnt_off00006790.bin
37dec65dc0542a11c5f7e39fa75d5458fd2e9418ca8fdce113efcc0a4632c082
pdf-font-stream PDF embedded font (sfnt) at offset 0x6790 5004 bytes
font_01_sfnt_off000078a2.bin
d9f9110e4f0cfd53ffbccc4496a6e1900e743786f97beb9d45f58ca3457903f4
pdf-font-stream PDF embedded font (sfnt) at offset 0x78A2 18032 bytes
font_02_sfnt_off0000a3d9.bin
c42e6979fbba499a28fde7ce745daf4f8e364f2517607af6796dee27a407a053
pdf-font-stream PDF embedded font (sfnt) at offset 0xA3D9 10480 bytes
font_04_sfnt_off0000e97f.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0xE97F 4324 bytes