Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3ba4375a292fc23…

MALICIOUS

PDF

43.5 KB Created: 2020-08-30 01:02:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8a7e5951cb134f128d96a60b9b4dc9c5 SHA-1: 0bd00c77aa364966e75db7ebfe75fa55b7796e50 SHA-256: f3ba4375a292fc2377e6685214d343752175a8f7e16e756ed6110e0e82e4a133
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.cc/wix?keyword=automotive+electrical+and+electronic', points to known malicious redirector infrastructure. The document body, though heavily obfuscated, also contains this URL, suggesting it is a primary lure. The presence of a link farm and a malicious redirector indicates a likely phishing or malware distribution attempt.

Heuristics 3

  • 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.
  • 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/wix?keyword=automotive+electrical+and+electronic
    • https://cdn.shopify
    • https://cdn.shopify.com/s/files/1/0435/7485/3793/files/castle_crashers_industrialist.pdf
    • https://cdn.shopify.com/s/files/1/0433/2398/1979/files/wanamumagugitopug.pdf
    • https://cdn.shopify.com/s/files/1/0441/3734/9272/files/immersive_first_person_skyrim_se.pdf
    • https://cdn.shopify.com/s/files/1/0433/5940/4197/files/32866931074.pdf
    • https://cdn.shopify.com/s/files/1/0431/3264/9636/files/depelepiralotozup.pdf
    • https://cdn.shopify.com/s/files/1/0434/3349/2641/files/kukibafovenejefuleti.pdf
    • https://cdn.shopify.com/s/files/1/0430/7802/5377/files/motudekivovebefogejo.pdf
    • https://cdn.shopify.com/s/files/1/0436/3229/6089/files/canara_bank_statement_in.pdf
    • https://cdn.shopify.com/s/files/1/0431/7793/5004/files/bozedogefote.pdf
    • https://cdn.shopify.com/s/files/1/0432/8810/1030/files/othello_themes_appearance_vs_reality.pdf
    • https://cdn.shopify.com/s/files/1/0431/8635/6375/files/my_united_states_of_whatever.pdf
    • https://cdn.shopify.com/s/files/1/0434/5046/6464/files/26740407703.pdf
    • https://cdn.shopify.com/s/files/1/0435/4536/2591/files/61723636654.pdf
    • https://cdn.shopify.com/s/files/1/0429/0671/4268/files/empyema_treatment_guidelines_idsa.pdf
    • https://cdn.shopify.com/s/files/1/0430/0223/2983/files/kifokipo.pdf
    • https://cdn.shopify.com/s/files/1/0428/0962/2695/files/xijazikonefiwavizelu.pdf
    • https://cdn.shopify.com/s/files/1/0434/5243/2537/files/bergey_s_manual_download.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_off00006cfc.bin
9143a51e5aeb2911cc749717a5a402357579cb220734e8fa7142d006e5736248
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CFC 4956 bytes
font_01_sfnt_off00007dc2.bin
9ece932cbd5c4c1adf9ccfde081e9abec4d9f4b0f47d0aa2676967240019dc9f
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DC2 10176 bytes