Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5e1e5a93bcec7ff…

MALICIOUS

PDF

68.2 KB Created: 2020-08-08 21:38:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 633c8f2e073d6154c0a239148306dcbc SHA-1: 86395de59840ba5824843c3f6e0edec9b1d687b9 SHA-256: d5e1e5a93bcec7ffc712ee47ceb7a6c9091af9796f53ebfc4b51cb683fd4a59b
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=chemistry+of+industrial+raw+materials+pdf'. This suggests the document is designed to redirect users to malicious content, likely for phishing or malware distribution. The presence of a large number of external PDF links also points to a link farm or SEO poisoning tactic.

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=chemistry+of+industrial+raw+materials+pdf
    • http://files.atlantapavingsolutions.com/uploads/1/3/1/4/131409794/8236030.pdf
    • http://files.columbiaclefhangers.com/uploads/1/3/0/7/130776518/lebipopikapive.pdf
    • http://files.macombbattingcages.com/uploads/1/3/0/7/130776875/918238.pdf
    • http://files.ccbreland.com/uploads/1/3/0/7/130739383/nufolifijavuten-juxenom-vawatob-xotevog.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8357326041.pdf
    • https://cdn.shopify.com/s/files/1/0431/1613/4562/files/fabuko.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/7074967355.pdf
    • https://cdn.shopify.com/s/files/1/0433/9879/1322/files/pevawimukapubib.pdf
    • https://cdn.shopify.com/s/files/1/0430/4781/3269/files/31429496986.pdf
    • https://cdn.shopify.com/s/files/1/0431/7646/0448/files/wibekevufaduxavulupunetek.pdf
    • https://cdn.shopify.com/s/files/1/0434/7278/1478/files/cae_exam_papers_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0428/3265/8588/files/zowodeb.pdf
    • https://cdn.shopify.com/s/files/1/0432/6391/8246/files/76794546227.pdf
    • https://cdn.shopify.com/s/files/1/0440/5841/1160/files/baby_boy_names_in_tamil_font.pdf
    • https://cdn.shopify.com/s/files/1/0430/6088/7705/files/lupitujulalomaroxanufag.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/
    • https://cdn.shopify.com/s/files/1/0430/478

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b301.bin
2f9621a9b880049bf795b019e9f3192a3440bcaa11ae70aacb0080bb38cfe0a4
pdf-font-stream PDF embedded font (sfnt) at offset 0xB301 5380 bytes
font_01_sfnt_off0000c539.bin
a4d36c97ada3aa35ed6204f3bfa5bafc9bb872a4a3043177a12add17bcb1512b
pdf-font-stream PDF embedded font (sfnt) at offset 0xC539 15516 bytes
font_02_sfnt_off0000f55d.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0xF55D 4324 bytes