Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab70bb473b487bd6…

MALICIOUS

PDF

61.7 KB Created: 2020-08-18 17:19:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d9cbb5675a7cf2c4f515fa83a97671e8 SHA-1: f455b35f984856eb1e549570f964a7438d630796 SHA-256: ab70bb473b487bd65ba8e7fd59350d97b41fc233297abd0a4379f242be4951ba
136 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, disguised as a railway form status check. The document body, though heavily obfuscated, contains the same URL and suggests urgency and a download lure. The presence of a link farm and the redirector link indicate a phishing or malware delivery attempt.

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.com/pify?keyword=railway+form+check+status+2018
    • http://suxib.pamarownaturals.com/uploads/1/3/1/3/131379179/totubewo_zipizef_jirubejimozofa_xizagoxevepure.pdf
    • https://cdn.shopify.com/s/files/1/0431/4506/8699/files/lasuzofimaxaga.pdf
    • https://cdn.shopify.com/s/files/1/0428/4183/3635/files/58208720400.pdf
    • https://cdn.shopify.com/s/files/1/0430/8572/5850/files/dario_fo_accidental_death_of_an_anarchist.pdf
    • https://cdn.shopify.com/s/files/1/0439/4654/1211/files/zupobo.pdf
    • https://cdn.shopify.com/s/files/1/0434/1147/2541/files/83480127286.pdf
    • https://cdn.shopify.com/s/files/1/0437/8584/6933/files/99369697619.pdf
    • https://cdn.shopify.com/s/files/1/0437/3915/2535/files/7239403771.pdf
    • https://cdn.shopify.com/s/files/1/0440/5913/2069/files/rebivejipinesowijasa.pdf
    • https://cdn.shopify.com/s/files/1/0440/7122/3446/files/durexalerugedaw.pdf
    • https://cdn.shopify.com/s/files/1/0428/0126/6851/files/29479898958.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/
    • https://cdn.shopify.com/s/files/1/0440/7122/3446/files/d

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a7ab.bin
86a962fc6ddd7d486234723895123418e868a41f7b1646199a4eda76324d1a4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA7AB 5904 bytes
font_01_sfnt_off0000bbbd.bin
b53c37265ed27bd87cf9b3f2c1ba6c694fc00e86da9cf3e95cdef2742245ee81		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBBBD 14980 bytes

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