Malicious PDF — malware analysis report

Static analysis result for SHA-256 49fa7d73fb0e44a7…

MALICIOUS

PDF

42.5 KB Created: 2020-09-01 15:02:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9fbb09accd05a3c60822ab50e6653cc4 SHA-1: fef2fa34be7d169863ab2380edad7993c8732676 SHA-256: 49fa7d73fb0e44a7b165f09a8b093df450b8ddc9da2cde4ac20d87427143fe2c
150 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector at `https://ttraff.cc/wix?keyword=cv+administrateur+systeme+pdf`. This indicates a phishing attempt disguised as a job application. The document body, though heavily obfuscated, contains references to 'cv administrateur systeme pdf' and the malicious URL, reinforcing the phishing lure. The presence of a large number of external PDF links suggests a link farm or SEO poisoning tactic to distribute the malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=cv+administrateur+systeme+pdf
    • https://cdn.shopify.com/s/files/1/0430/0659/1127/files/besejagakibizurato.pdf
    • https://cdn.shopify.com/s/files/1/0430/2585/8711/files/bukesonudeganigidibel.pdf
    • https://cdn.shopify.com/s/files/1/0437/8532/2658/files/85970766701.pdf
    • https://cdn.shopify.com/s/files/1/0433/4790/2629/files/53817876559.pdf
    • https://cdn.shopify.com/s/files/1/0435/2186/7930/files/tubafopodiwovimaj.pdf
    • https://static.usrfiles.com/ugd/451461_1e29cddc17ae4dbe85a6bf662b1bcd03.pdf
    • https://static.usrfiles.com/ugd/76156b_cd5d69a69095442f9590f040e634e934.pdf
    • https://static.usrfiles.com/ugd/c4f63d_da43d2a3c2914831b756bf0bb4acc7d0.pdf
    • https://static.usrfiles.com/ugd/003b86_0715c5133975422cb155a6a96feaaf02.pdf
    • https://static.usrfiles.com/ugd/8b49c6_386ca457cf6a48c0a4fede7c32e506c6.pdf
    • https://static.usrfiles.com/ugd/19ce5d_40e8e46ae5bc45e89184d405bf5ebd6c.pdf
    • https://static.usrfiles.com/ugd/cdb50c_e342ff020a1d47b0b2d10876205c336f.pdf
    • https://static.usrfiles.com/ugd/b8c837_92285239dda64af3bd69be43a5aa0015.pdf
    • https://static.usrfiles.com/ugd/ca9b0a_1910c68ec30c4f2594cf914054519b1c.pdf
    • https://static.usrfiles.com/ugd/b8c837_8346e753212544c4a081fe7a97d82b1e.pdf
    • https://static.usrfiles.com/ugd/b8c837_607fbfb1d5f645238b825f8f09e0339f.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_off000055fc.bin
bb5ca263230906aec675643544891132e514806ad2b2adcb6b91a97ab7926d22
pdf-font-stream PDF embedded font (sfnt) at offset 0x55FC 5112 bytes
font_01_sfnt_off00006758.bin
aee404c39421a6f3e3a407fc367fd1c193ddfd3cb8a2534419884a5da6a0038b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6758 11720 bytes
font_02_sfnt_off00008d8f.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D8F 4324 bytes