Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc5d542d3020f873…

MALICIOUS

PDF

42.6 KB Created: 2020-08-22 10:56:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bc4f0ec67e9c02c27c8d61a5d5f4992a SHA-1: 4211d262aa46fd8d38131fed936858ee85b2e248 SHA-256: dc5d542d3020f8732fb2c2f182014a894c008c9012e455c99187e0e55a19b1f6
128 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which are SEO-optimized PDF files, and one specific link that redirects to malicious infrastructure. The document body contains a clear call-to-action related to downloading 'Adobe premiere transitions pack free', which is a common lure for malicious downloads. The primary malicious link is https://ttraff.cc/pify?keyword=adobe+premiere+transitions+pack+free, which is a known redirector.

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=adobe+premiere+transitions+pack+free
    • http://files.runtoclimax.org/uploads/1/3/0/7/130740069/mapuxozixo.pdf
    • http://guzezamok.baltimoretowtruckservice.com/uploads/1/3/1/4/131410685/gapesuduzeze.pdf
    • http://pewabo.lavinawagnerphotography.com/uploads/1/3/2/6/132681513/0814ca.pdf
    • http://mojudut.therespondermag.com/uploads/1/3/1/0/131070993/xotunedo.pdf
    • https://cdn.shopify.com/s/files/1/0433/7015/2088/files/losuketolakenusavefepa.pdf
    • https://cdn.shopify.com/s/files/1/0432/9324/5600/files/mastering_blockchain_2nd_edition_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0437/3633/4501/files/60152998712.pdf
    • https://cdn.shopify.com/s/files/1/0437/8335/6565/files/list_of_accusative_verbs.pdf
    • https://cdn.shopify.com/s/files/1/0433/3663/0422/files/28836594524.pdf
    • https://cdn.shopify.com/s/files/1/0435/3874/3450/files/fupovonejeli.pdf
    • https://cdn.shopify.com/s/files/1/0434/7035/6632/files/84098561675.pdf
    • https://cdn.shopify.com/s/files/1/0429/7257/7946/files/49511565375.pdf
    • https://cdn.shopify.com/s/files/1/0428/0716/5095/files/lukifolelanurebuzotafulej.pdf
    • https://cdn.shopify.com/s/files/1/0431/1639/6695/files/85558453170.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vevisip.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000682e.bin
f5279136049cb03e1834a9ab92157d3a733a2a71e8edf75be1b2b3b19dd81bc6
pdf-font-stream PDF embedded font (sfnt) at offset 0x682E 5464 bytes
font_01_sfnt_off00007aa5.bin
774a4b06f9deb9c7f2bebaaa4ff3e70ffbd6a21d4f4245ab0c1d9a759ef254c9
pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA5 10240 bytes