Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c9ba30d10cec457…

MALICIOUS

PDF

59.6 KB Created: 2020-07-30 01:44:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 71e957fc84181bacda3c3bd811173de8 SHA-1: f4a14e40ace39995ae3c54e4d7815ff93fb552b8 SHA-256: 2c9ba30d10cec45780d08be4a7a4db3441943572804760f2eb86e924b3899f02
160 Risk Score

Malware Insights

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

The PDF contains a lure related to 'tutorial coding pdf' and includes a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Another critical heuristic indicates a PDF link farm, with the primary link leading to a Shopify domain. The document also exhibits a high-severity heuristic for an MFA/credential harvesting lure, suggesting the intent is to trick users into providing sensitive information. 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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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.com/pify?keyword=tutorial+coding+pdf
    • http://files.youngtrillsoul.us/uploads/1/3/1/4/131454523/1891484.pdf
    • http://files.babyneenee.com/uploads/1/3/1/4/131438195/4128462.pdf
    • http://files.crishayantis.com/uploads/1/3/1/3/131379761/xemar.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/81143567733.pdf
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/jozataxezosezezumoku.pdf
    • https://cdn.shopify.com/s/files/1/0440/0090/3318/files/5881240526.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15074065918.pdf
    • https://cdn.shopify.com/s/files/1/0430/9280/3744/files/90370092587.pdf
    • https://cdn.shopify.com/s/files/1/0429/0487/9267/files/36455980974.pdf
    • https://cdn.shopify.com/s/files/1/0428/9924/3174/files/7489397146.pdf
    • https://cdn.shopify.com/s/files/1/0434/5564/3813/files/pifeduga.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94448736580.pdf
    • https://cdn.shopify.com/s/files/1/0432/4245/5197/files/xodusomofepavuzavomuvepox.pdf
    • https://cdn.shopify.com/s/files/1/0440/8619/8424/files/ximurigamujupofag.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_off0000ac35.bin
c41e34951186b0505c81026b8a5f01a062b05610d65510d02a8857f9654edfc2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC35 4860 bytes
font_01_sfnt_off0000bcc0.bin
aff87412ec43341406587ce5874ef45af7313fc484c65beec6e5405e7f94e173		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBCC0 10816 bytes

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