Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3be0ead67aacd10…

MALICIOUS

PDF

40.9 KB Created: 2020-08-21 15:16:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01a5e3280af6f6500168829d4fce7c97 SHA-1: dd3f6ef83878470fd61593eeb9a53926c10151eb SHA-256: e3be0ead67aacd100e267d0e57801eb9674c3a3b63a43ebdb568b6a0757f1349
150 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to suspicious domains and one specifically to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'C i full form in police' and the malicious URL, suggesting a lure to a phishing or scam page. No scripts were extracted, but the PDF structure and link farm indicate a delivery mechanism for 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.ru/pify?keyword=c+i+full+form+in+police
    • http://sesux.michelsacademy.com/uploads/1/3/1/1/131164250/7720159.pdf
    • http://reduluv.unitedcybl.org/uploads/1/3/2/8/132814930/murexel_pelopuk_bavobafomafozi_tefuwif.pdf
    • http://jisiwebig.ejkconsultants.com/uploads/1/3/2/6/132681946/daxoxagekelupu.pdf
    • http://gewetuwax.yellowstonegrizzlyproject.org/uploads/1/3/0/8/130874317/9fc272.pdf
    • http://files.myerstownboyscouts.org/uploads/1/3/1/8/131871907/6530273.pdf
    • https://cdn.shopify.com/s/files/1/0436/7722/1017/files/1019755817.pdf
    • https://cdn.shopify.com/s/files/1/0436/1610/8707/files/matricom_g_pad_bx_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/7509/9029/files/14143180224.pdf
    • https://cdn.shopify.com/s/files/1/0435/0754/8326/files/wei_wu_wei.pdf
    • https://cdn.shopify.com/s/files/1/0429/0723/8567/files/23537050843.pdf
    • https://cdn.shopify.com/s/files/1/0429/5943/7975/files/suzusavobutodar.pdf
    • https://cdn.shopify.com/s/files/1/0429/3338/7423/files/online_petition_maker.pdf
    • https://cdn.shopify.com/s/files/1/0454/4213/8262/files/android_studio_generate_apk_name.pdf
    • https://cdn.shopify.com/s/files/1/0432/2502/2621/files/87027975038.pdf
    • https://cdn.shopify.com/s/files/1/0431/7557/5709/files/cake_by_the_ocean_bass_tab.pdf
    • https://cdn.shopify.com/s/files/1/0429/2132/8807/files/ribizupekizoxepibukemup.pdf
    • https://cdn.shopify.com/s/files/1/0434/7353/5138/files/6108264537.pdf
    • https://cdn.shopify.com/s/files/1/0435/5325/9679/files/15869141947.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_off00005da9.bin
5a5fce8a15135b3a5442a78f3d2bcdcc46988be06f59ca5690e5b8a67d8ca9ce
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DA9 4676 bytes
font_01_sfnt_off00006d78.bin
93e29aa3091e35dc2f972944b5d7984b90214b4e0375a410eb4808d0bc7ccdfb
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D78 13336 bytes