Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae9ca06a7862a7e3…

MALICIOUS

PDF

66.6 KB Created: 2020-07-31 01:43:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ddd2d29c207f7d34b7b0681133146b6b SHA-1: 80e913c2211fe636cbd443c158b3a0010febeb28 SHA-256: ae9ca06a7862a7e3985949c2a8b1f00787bb9e8344e36d753c1ec553c9503cf8
128 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely intended to lead the user to a malicious site. The presence of a 'download button' heuristic and a large number of embedded links further supports a phishing or scam attempt. No scripts were extracted from this sample.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=cbse+class+12+computer+science+syllabus+2020+20+pdf
    • http://files.hanssempacific.com/uploads/1/3/0/9/130970016/nenixazokas_vewavonoli.pdf
    • http://files.sisibcp.com/uploads/1/3/1/4/131410370/47e11ab67996.pdf
    • http://files.snap-happy.net/uploads/1/3/1/3/131384368/f6a495421ddec4a.pdf
    • http://files.snap-happy.net/uploads/1/3/1/3/131384368/f6a495421ddec4a.pd
    • https://cdn.shopify.com/s/files/1/0431/6309/1112/files/midagesaxowo.pdf
    • https://cdn.shopify.com/s/files/1/0431/8330/8955/files/bixudavodanitaz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/taridulozomoxekolakinuku.pdf
    • https://cdn.shopify.com/s/files/1/0430/5082/7929/files/26433628482.pdf
    • https://cdn.shopify.com/s/files/1/0435/1324/9946/files/pedisusubarami.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/daligezazadudazisofevapop.pdf
    • https://cdn.shopify.com/s/files/1/0434/7641/8713/files/26869275775.pdf
    • https://cdn.shopify.com/s/files/1/0432/7142/2102/files/piraxodutudi.pdf
    • https://cdn.shopify.com/s/files/1/0433/6173/0719/files/nefijokepusubezivurugik.pdf
    • https://cdn.shopify.com/s/files/1/0433/2794/6904/files/69281285374.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78549170372.pdf
    • https://cdn.shopify.com/s/files/1/0439/5306/2046/files/pafavapugirewaminilaxu.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000989c.bin
57f6588f63e104c6998885ed516e2951d0fefdfb66dedda2428ec370fb1149b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x989C 5772 bytes
font_01_sfnt_off0000ac29.bin
4e583b278a76d70d3ff67b94cffb7285acc03afe7689526d59afdd0e66437bd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC29 6568 bytes
font_02_sfnt_off0000beba.bin
fb84878675dccb79498653b443ecf4d6c2456c751dceccefaca8ad7bab853737		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBEBA 10340 bytes
font_03_sfnt_off0000e238.bin
e6236245b1b519c90993a0a0decb83651aa70bd3eb3f1615240c4a875e4479e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE238 17492 bytes

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