Malicious PDF — malware analysis report

Static analysis result for SHA-256 949b09030f7021fc…

MALICIOUS

PDF

53.1 KB Created: 2020-06-07 19:03:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aad9dc3c5614721d864bec1237edb284 SHA-1: 08a0fdda6819bf707bf79885a8a2a6d9db40c0c2 SHA-256: 949b09030f7021fc646e7cec09d7769521239100016fb786d8f39b2d94ab1ac3
150 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, identified as a link farm and a malicious redirector. The primary URL, https://ttraff.ru/wp3?keyword=canon+imageprograf+w6400+manual#canon+imageprograf+w6400+manual, is a known malicious redirector. The document body, though heavily obfuscated, contains keywords related to manuals and application versions, likely intended to appear as legitimate search results or documentation to entice clicks. The presence of a large number of external PDF links further supports the SEO poisoning or link farm attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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/wp3?keyword=canon+imageprograf+w6400+manual#canon+imageprograf+w6400+manual
    • http://huntersvillepres.com/uploads/1/3/0/6/130604986/wizolutoda.pdf
    • http://sadekatarina.com/uploads/1/3/0/8/130813571/8001376.pdf
    • http://dandlfragrancesonline.com/uploads/1/3/1/4/131406436/3152189.pdf
    • http://bgchoodcounty.org/uploads/1/3/0/6/130604311/9540364.pdf
    • http://marbellachiropractor.com/uploads/1/3/0/6/130604637/besigagudefapi_domutidamukaz.pdf
    • http://webmail.beatricedouglas.com/uploads/1/3/1/4/131411147/7887462.pdf
    • http://bowcare.nl/uploads/1/3/1/1/131163890/7230601.pdf
    • http://pawsinforstyle.trustabiz.com/uploads/1/3/0/5/130588659/0662d88d7.pdf
    • http://madebytheta.com/uploads/1/3/1/4/131453283/redofokivasirew.pdf
    • http://haresfarm.ca/uploads/1/3/1/6/131606186/4350748.pdf
    • http://katequinnyoga.com/uploads/1/3/0/4/130490115/5931041.pdf
    • https://lifaxeja.files.wordpress.com/2020/06/xejubilazubakafasufudozo.pdf
    • https://rizarese.files.wordpress.com/2020/06/wudigutizabenux.pdf
    • https://tuzixabow.files.wordpress.com/2020/06/48249514927.pdf
    • https://wamobujopo.files.wordpress.com/2020/06/37496010122.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_off00005cce.bin
6952c14fdce9f532dfcecb44644d75c4bc733fd9b7f586eeb3f9a798bfe73bb2
pdf-font-stream PDF embedded font (sfnt) at offset 0x5CCE 14372 bytes
font_01_sfnt_off00008b95.bin
9797441731fd6331ecd62d1df0d0fb599ae025c3a9a0eadf87239db8699d6004
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B95 10480 bytes
font_02_sfnt_off0000af99.bin
d7cb0d02e0400cb67debc6895073eb1b5b085d1af63d25d707faa56e00a3a168
pdf-font-stream PDF embedded font (sfnt) at offset 0xAF99 16588 bytes