Malicious PDF — malware analysis report

Static analysis result for SHA-256 d319344c9f5eb3ca…

MALICIOUS

PDF

43.9 KB Created: 2020-08-21 18:33:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87ff4f6b65764818bdf793247e5bfbda SHA-1: 625efdcbc5bad1f2b1c505e8fcfcef8360d098ec SHA-256: d319344c9f5eb3ca150fe04ccb7d37fe7e2c7f779ac869121c4764c4f9fafc48
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, including one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'making cv pdf format' and the malicious URL 'https://ttraff.cc/pify?keyword=making+cv+pdf+format'. This suggests a social engineering attempt to trick the user into downloading a malicious file or visiting a compromised site under the guise of a CV template. No scripts were extracted from this sample.

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/pify?keyword=making+cv+pdf+format
    • http://zolili.sharedservicesct.com/uploads/1/3/1/8/131855997/geporubufimoka.pdf
    • http://files.infantaquaticsct.com/uploads/1/3/2/7/132740277/womukap.pdf
    • http://files.olympiabackintime.com/uploads/1/3/1/4/131483069/vopusufalunanalesu.pdf
    • http://files.tripsandtours.com.ar/uploads/1/3/2/7/132740375/lirafo.pdf
    • http://peviwe.terryweedy.com/uploads/1/3/2/8/132815806/tolumolaluzamo_sefiwagufela_pogat.pdf
    • https://cdn.shopify.com/s/files/1/0429/2925/8649/files/tulusujotupolulijelanus.pdf
    • https://cdn.shopify.com/s/files/1/0443/4237/8652/files/remove_watermark_foxit_editor.pdf
    • https://cdn.shopify.com/s/files/1/0431/6754/7552/files/binging_with_babish_cookbook_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/0044/7655/files/57779192985.pdf
    • https://cdn.shopify.com/s/files/1/0431/3110/9540/files/apprendre_l_italien_pour_dbutant.pdf
    • https://cdn.shopify.com/s/files/1/0434/8415/1974/files/numerical_mathematics_and_computing_solutions_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/1533/1227/files/81477836396.pdf
    • https://cdn.shopify.com/s/files/1/0433/1434/8197/files/19251892845.pdf
    • https://cdn.shopify.com/s/files/1/0429/8476/7641/files/xobewajipururodepuzude.pdf
    • https://cdn.shopify.com/s/files/1/0433/8758/4675/files/43898408415.pdf
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/kanofefowiter.pdf
    • https://cdn.shopify.com/s/files/1/0433/9941/3925/files/bovunidojosigil.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_off00006c47.bin
b571f0455e8238ca930df79c6b73e8b381fe42cfc17f6c0a76d97adc99aa4989
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C47 5396 bytes
font_01_sfnt_off00007e98.bin
badeb29cb6d9fb2056fcef1a58f0cf721a61336fd2be443240d6887de12fc75d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E98 10580 bytes