Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ed9c06dd9927aa1…

MALICIOUS

PDF

59.7 KB Created: 2020-08-19 14:49:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7fe7e267c3dfc55cc7143212f8d31d04 SHA-1: d535dfca1a5f321cf800acddd2e4876fb675d6ee SHA-256: 4ed9c06dd9927aa183f3115b30198ebc2d277b0931bde6ce44bbac736808f4c7
128 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a link farm pointing to external PDFs, suggesting a lure to download further content. The presence of a 'download button' heuristic reinforces this, indicating the document's intent is to trick the user into clicking a link. The primary malicious URL identified is ttraff.cc, which is known for redirecting to malicious sites.

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=film+ashabul+kahfi+indowebster
    • http://files.acekitchensandwardrobes.com.au/uploads/1/3/2/6/132695546/2734105.pdf
    • http://files.relaxmassagetherapyclinic.com/uploads/1/3/1/4/131437322/237616.pdf
    • http://files.simplifiedcomm.com/uploads/1/3/0/8/130813714/wodepobejanipoluzi.pdf
    • http://files.outsidethebox.nz/uploads/1/3/0/7/130739616/wufap.pdf
    • http://files.bornleaderconsulting.com/uploads/1/3/2/6/132681985/4737959.pdf
    • https://cdn.shopify.com/s/files/1/0433/8896/0933/files/sejarah_pendidikan_islam_di_malaysia.pdf
    • https://cdn.shopify.com/s/files/1/0432/0280/5917/files/zuxaxajudov.pdf
    • https://cdn.shopify.com/s/files/1/0435/7446/0579/files/56458508828.pdf
    • https://cdn.shopify.com/s/files/1/0431/0892/5600/files/xogugonureforavulixibo.pdf
    • https://cdn.shopify.com/s/files/1/0447/9189/0071/files/rest_api_performance_testing_tools_open_source.pdf
    • https://cdn.shopify.com/s/files/1/0432/4196/3679/files/kuvodatavaduv.pdf
    • https://cdn.shopify.com/s/files/1/0443/4988/2524/files/the_coin_game_free.pdf
    • https://cdn.shopify.com/s/files/1/0454/6048/8350/files/3472973853.pdf
    • https://cdn.shopify.com/s/files/1/0434/2264/6422/files/latiwifidolu.pdf
    • https://cdn.shopify.com/s/files/1/0433/1978/7688/files/14108337469.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dotedijulukamani.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_off00009512.bin
afa00366077d19e83de170f781ae99c42daa905eb99643953dca083a9a1cd6c5
pdf-font-stream PDF embedded font (sfnt) at offset 0x9512 5396 bytes
font_01_sfnt_off0000a750.bin
618568f330643bc9ee2c8ac7b09b2026d21c33ff70da3cd5f78349ffd7ea8b6c
pdf-font-stream PDF embedded font (sfnt) at offset 0xA750 10896 bytes
font_02_sfnt_off0000ccd2.bin
9af6fc3bf9d751f70540aea0fa47faa159a3604992cda23d2adcda3ffc5346b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xCCD2 16092 bytes