Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fc8679c072f7a2f…

MALICIOUS

PDF

63.0 KB Created: 2020-08-12 23:14:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c3100cc4568fef6ee25f1d199dafe1f0 SHA-1: 646df8f98f50b18bbea4ad47834632002e766783 SHA-256: 2fc8679c072f7a2f413c1c6adebdbc78fac51fd1382831ff4e7e5da0fcb15d08
180 Risk Score

Malware Insights

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

The PDF file contains numerous links, many pointing to Shopify domains, but one critical link redirects to a malicious domain. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=blockchain+explained+pdf' which is flagged as a malicious redirector. Furthermore, the document explicitly requests sensitive recovery secrets, indicating a phishing or social engineering attempt. The presence of a link farm and a malicious redirector suggests an attempt to distribute further malicious content or phish for credentials.

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.
  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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=blockchain+explained+pdf
    • http://files.plevasmeats.com/uploads/1/3/0/8/130874246/385586.pdf
    • http://zifot.porterrc.com/uploads/1/3/0/9/130969352/7817140.pdf
    • http://files.thepurposedathlete.com/uploads/1/3/1/4/131438330/1676827.pdf
    • http://files.personalspaceproject.com/uploads/1/3/2/7/132740343/piwepapefa-kavijabojexopi-fuwuwumewa.pdf
    • https://cdn.shopify.com/s/files/1/0430/3332/9817/files/lenuwoxuzuxamunu.pdf
    • https://cdn.shopify.com/s/files/1/0433/6241/8847/files/mapleroyals_3rd_job_advancement.pdf
    • https://cdn.shopify.com/s/files/1/0452/5365/6738/files/arthur_pink_attributes_of_god.pdf
    • https://cdn.shopify.com/s/files/1/0432/6319/7337/files/practice_tests_for_cambridge_english_preliminary_pet.pdf
    • https://cdn.shopify.com/s/files/1/0430/0288/8351/files/54107608375.pdf
    • https://cdn.shopify.com/s/files/1/0437/1100/4821/files/pegina.pdf
    • https://cdn.shopify.com/s/files/1/0428/5677/5839/files/materialismo_histrico_dialtico.pdf
    • https://cdn.shopify.com/s/files/1/0431/2639/0946/files/witofonivezaw.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/buwukepenarunowara.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/nowoxobuko.pdf
    • https://cdn.shopify.com/s/files/1/0427/7737/8972/files/povoladagiguparoned.pdf
    • https://cdn.shopify.com/s/files/1/0430/4853/4167/files/bejenedifeso.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000abf8.bin
ec167c6c7a7ac66497fc2927a25ec21d4844de37bd210c7185f510ae9adc534e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xABF8 4860 bytes
font_01_sfnt_off0000bc66.bin
169f826dadf3cdbc1c62effae1b096f14bdfcfeacc9f96cd99a030424d44ca2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBC66 10780 bytes
font_02_sfnt_off0000e0b2.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE0B2 4324 bytes

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