Malicious PDF — malware analysis report

Static analysis result for SHA-256 29104c806f3ea7b3…

MALICIOUS

PDF

43.7 KB Created: 2020-09-01 21:41:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2a7c6c658a5e72f4a532210d35a3c4b0 SHA-1: e26b454786ebd08f251de4201a7cde396cfd6b34 SHA-256: 29104c806f3ea7b343defa24f9d13421de9150d711bcbd08ad6afbe4c20949e5
130 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one heuristic specifically identifying a malicious redirector link to 'ttraff.com'. Another heuristic flags the document as a link farm, suggesting an attempt to distribute numerous external links. The presence of urgency language further supports a phishing or scamming attack pattern. No scripts were extracted, limiting the analysis of direct payload execution.

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.
  • 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
  • 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/wix?keyword=browsec+vpn+firefox
    • https://cdn.shopify.com/s/files/1/0434/4519/0821/files/80893359379.pdf
    • https://cdn.shopify.com/s/files/1/0433/4390/4927/files/cytokinesis_between_meiosis_1_and_2_forms.pdf
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/dubaribonuxuporoxukudiwod.pdf
    • https://cdn.shopify.com/s/files/1/0434/3064/1826/files/go_math_grade_1_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/8022/8759/files/jagekiselitilotimibotifa.pdf
    • https://static.usrfiles.com/ugd/cd79e3_b0812df7960947d486d19eba8471da33.pdf
    • https://static.usrfiles.com/ugd/26938b_051e178620384fd28a3623f75c8dd84d.pdf
    • https://static.usrfiles.com/ugd/bd5c68_085f0db10b724551812ec8473fd7931b.pdf
    • https://static.usrfiles.com/ugd/8c0e65_25f68c91b41c494dbadd3956c34e55a7.pdf
    • https://static.usrfiles.com/ugd/868b90_6dec6510f10449f98f75b974202e329d.pdf
    • https://static.usrfiles.com/ugd/2ca09c_4796498e8333463db6304636bfa31228.pdf
    • https://static.usrfiles.com/ugd/fef806_b6db829f80894275b1c540676d269227.pdf
    • https://static.usrfiles.com/ugd/b8c837_0575b038a9734f3d914b65e489cd4a48.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_off00006dbb.bin
1a2b3a0f89f816b1444aa5c7929e8e906df3db7f8049c0f0e28bd948b94f19b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DBB 5036 bytes
font_01_sfnt_off00007f15.bin
eab950e3eb8446cbf72c793b451e35d5d1c529d2c38d0f406d84f8bb5429261c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F15 10256 bytes

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