Malicious PDF — malware analysis report

Static analysis result for SHA-256 36d94f9e10950b2e…

MALICIOUS

PDF

44.7 KB Created: 2020-07-27 15:32:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ce33d94c5addedbcdb5cdab75055ebe7 SHA-1: 7cf4fa255cc9691f399d7e05b730af7c1a726b9e SHA-256: 36d94f9e10950b2e3637e7cfca57ed375c0871cb939e789a6f24de0785508b15
140 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, suggests a lure related to software downloads, further supported by the heuristic firings indicating a malicious redirector and a link farm. The presence of numerous links, including one to a redirector, strongly suggests an attempt to drive traffic to malicious sites for further exploitation or phishing.

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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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=whatsapp+messenger+latest+version+for+pc
    • http://files.stettlerhousing.com/uploads/1/3/1/8/131857983/xilajot-sezujode-lijabujit.pdf
    • http://files.hillarybrownart.com/uploads/1/3/2/6/132695401/moxeraro-boseximuvofaj-biroxubepobewo-mikidiwuv.pdf
    • http://files.newhopeballpark.com/uploads/1/3/1/4/131438604/saxesezixomesi_japulojatuvem_ketaxopebirir.pdf
    • http://files.hillarybrownart.com/uploads/1/3/2/6/132695401/moxeraro-boseximuvofa
    • https://cdn.shopify.com/s/files/1/0433/5511/1589/files/28941156149.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/jowodemupakul.pdf
    • https://cdn.shopify.com/s/files/1/0432/2610/3971/files/90530608947.pdf
    • https://cdn.shopify.com/s/files/1/0427/4615/1078/files/22520017540.pdf
    • https://cdn.shopify.com/s/files/1/0440/3272/1046/files/gopiwesovapuza.pdf
    • https://cdn.shopify.com/s/files/1/0433/2145/8853/files/xobuzetefu.pdf
    • https://cdn.shopify.com/s/files/1/0431/5054/0964/files/45351293440.pdf
    • https://cdn.shopify.com/s/files/1/0434/5239/9773/files/11257065899.pdf
    • https://cdn.shopify.com/s/files/1/0436/9947/0490/files/rubigilive.pdf
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/70842254358.pdf
    • https://cdn.shopify.com/s/files/1/0433/3728/5797/files/5357269813.pdf
    • https://cdn.shopify.com/s/files/1/0431/0096/2977/files/59402217042.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_off000071f3.bin
b295ca3b35cbcd9540e9316cf432a43fe73f50a7ddcd529c2140c8d4cd28bfd4
pdf-font-stream PDF embedded font (sfnt) at offset 0x71F3 5288 bytes
font_01_sfnt_off000083d5.bin
79036c31d5e9dbd241bbe3b168f1542fa282205c69c0fc67db4e36f2606bec4e
pdf-font-stream PDF embedded font (sfnt) at offset 0x83D5 9900 bytes