Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a97986c334b2e3d…

MALICIOUS

PDF

39.1 KB Created: 2020-08-06 03:18:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e9062485bc8a6ed3c7feab325038b24e SHA-1: 0ff534e858749188805ffd0aad235801b3b107fa SHA-256: 1a97986c334b2e3df1f40b4a531aa5fbafa463fbe306942cdeac0f2f1e0fbdea
130 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a download for the 'Hunger Games book series'. The document body includes a call-to-action phrase and numerous embedded URLs, many of which point to PDF files hosted on various domains. The primary malicious URL is ttraff.com, which redirects to a page related to the book series download.

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.
  • 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=hunger+games+book+series+pdf+download
    • http://files.ism-irec.com/uploads/1/3/1/4/131411688/lajinatulemewivogewe.pdf
    • http://zuxezalaj.mayusilkart.org/uploads/1/3/1/4/131482962/bakek.pdf
    • http://files.hotmilkbreastfeeding.com/uploads/1/3/1/4/131409526/a4b8035a24734.pdf
    • http://files.printfinishingstore.com/uploads/1/3/1/3/131398573/527217.pdf
    • https://cdn.shopify.com/s/files/1/0430/8310/4409/files/xinofokutujobe.pdf
    • https://cdn.shopify.com/s/files/1/0433/5868/3291/files/vaxak.pdf
    • https://cdn.shopify.com/s/files/1/0437/2214/5943/files/zubazareravovomerit.pdf
    • https://cdn.shopify.com/s/files/1/0431/4015/3505/files/32538972975.pdf
    • https://cdn.shopify.com/s/files/1/0433/2906/1014/files/safufafulowap.pdf
    • https://cdn.shopify.com/s/files/1/0431/1921/4756/files/sajijorapubajef.pdf
    • https://cdn.shopify.com/s/files/1/0428/8705/3471/files/angular_commit_messages.pdf
    • https://cdn.shopify.com/s/files/1/0432/6552/3862/files/88758694851.pdf
    • https://cdn.shopify.com/s/files/1/0433/4977/0395/files/lirabikisixagatigujawa.pdf
    • https://cdn.shopify.com/s/files/1/0433/5845/3918/files/7742166182.pdf
    • https://cdn.shopify.com/s/files/1/0438/0455/7469/files/97919567308.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_off000059e5.bin
1d0f140131adc65aa1ec5964a97bac89825fda62cfdae622be8fce6c8f228b9e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59E5 5620 bytes
font_01_sfnt_off00006cf9.bin
d5be791c9035a97682b89d46d55e899b3c6fc13596891610181647d9893e0561		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF9 10220 bytes

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