Malicious PDF — malware analysis report

Static analysis result for SHA-256 e460ac64ea58ca80…

MALICIOUS

PDF

58.6 KB Created: 2020-08-02 17:11:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3820f47ab89c5fe1d8d11ce9b324af94 SHA-1: a5c3a66c854c236a10877c60e61e9ac9efc4fdac SHA-256: e460ac64ea58ca807364eedc8403bb7ee48c288c3498ee272eb25e5e365b670a
188 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector pointing to 'https://ttraff.ru/pify?keyword=intitle+index.+of+password'. The document also exhibits characteristics of a password-protected archive lure and a callback phishing lure, suggesting an attempt to deceive the user into downloading a payload or engaging with a scam. The presence of a link farm further supports a malicious intent to distribute content or redirect users to malicious sites.

Heuristics 6

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.ru/pify?keyword=intitle+index.+of+password
    • http://files.heavygrail.net/uploads/1/3/1/3/131380733/bitat.pdf
    • http://files.infinitemansummit.com/uploads/1/3/1/3/131378899/baxunakasanafam-pavimusubu-fumim-kudiziwokodusur.pdf
    • http://files.sgsquishies.com/uploads/1/3/1/3/131381605/894396.pdf
    • http://files.theprestigemaids.com/uploads/1/3/1/4/131411688/puxedata.pdf
    • http://files.neokymamessinias.org/uploads/1/3/0/7/130738970/tikazan.pdf
    • https://cdn.shopify.com/s/files/1/0440/6162/2437/files/65082862695.pdf
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/41392808315.pdf
    • https://cdn.shopify.com/s/files/1/0433/4085/7494/files/savajinomerap.pdf
    • https://cdn.shopify.com/s/files/1/0441/2515/9576/files/gavekekupa.pdf
    • https://cdn.shopify.com/s/files/1/0429/5809/4495/files/73148834190.pdf
    • https://cdn.shopify.com/s/files/1/0438/0763/7661/files/badesipazonupif.pdf
    • https://cdn.shopify.com/s/files/1/0437/7162/5621/files/xepijoperamiwinovuvuz.pdf
    • https://cdn.shopify.com/s/files/1/0432/9675/1774/files/powabola.pdf
    • https://cdn.shopify.com/s/files/1/0437/9007/4018/files/rumalepigirutot.pdf
    • https://cdn.shopify.com/s/files/1/0430/4509/3533/files/pajiwik.pdf
    • https://cdn.shopify.com/s/files/1/0434/3077/2901/files/47962349711.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_off00006caf.bin
f39d09db14d5258b66fa87d3cc3d3e080f9324ad01805ca8bc0d0c503e35c17c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CAF 14868 bytes
font_01_sfnt_off00009d6a.bin
cadf21000651709ef400c7f7b7df9ef91dfdb864d198a1edb419e9d61fd19e6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D6A 5164 bytes
font_02_sfnt_off0000af28.bin
37f77dd0e08ae87edb11a9bf32c707d294c74af38f4cfc15da590d2cba299db7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAF28 14736 bytes

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