Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecd29592fee0e92a…

MALICIOUS

PDF

42.4 KB Created: 2020-08-15 08:15:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aae87d6f96555af7589870e02859af80 SHA-1: e94889a4efa590a94baeb821607e00340da011e0 SHA-256: ecd29592fee0e92a9659116daf4661afa4bdf9e15965519d19744cce1fd66b35
150 Risk Score

Malware Insights

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

The PDF contains a link to a malicious redirector, ttraff.cc, which is likely used to obscure the final destination of the malicious payload. The document body, though heavily obfuscated, contains the same URL and appears to be a lure for movie song downloads. The PDF also hosts a large number of other PDF files, likely for SEO poisoning to improve search engine ranking and visibility.

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/pify?keyword=akhil+movie+songs++naa
    • http://files.margueriteperret.com/uploads/1/3/0/7/130739227/9c6b028.pdf
    • http://tugurexiv.jadavjilab.com/uploads/1/3/0/7/130775350/7064134.pdf
    • http://vibur.vernongayle.com/uploads/1/3/0/7/130775971/8e97190a3.pdf
    • https://cdn.shopify.com/s/files/1/0431/1692/0996/files/77157981025.pdf
    • https://cdn.shopify.com/s/files/1/0432/6434/4219/files/58731092330.pdf
    • https://cdn.shopify.com/s/files/1/0429/7755/8681/files/kopavonaxowexinavusovo.pdf
    • https://cdn.shopify.com/s/files/1/0437/5861/6733/files/nerutijojukipatemodubidon.pdf
    • https://cdn.shopify.com/s/files/1/0438/7930/1275/files/99028257419.pdf
    • https://cdn.shopify.com/s/files/1/0434/1481/4882/files/69762318276.pdf
    • https://cdn.shopify.com/s/files/1/0434/7012/7254/files/gijuditefisopavubogufufaj.pdf
    • https://cdn.shopify.com/s/files/1/0449/2325/6999/files/nitopavakurewuxozilijejoz.pdf
    • https://cdn.shopify.com/s/files/1/0441/3220/4696/files/19578171988.pdf
    • https://cdn.shopify.com/s/files/1/0438/8637/9163/files/1549256369.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tobilefoseparavako.pdf
    • https://cdn.shopify.com/s/files/1/0430/5004/1495/files/behaviour_management_in_pediatric_dentistry.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004c50.bin
f79c5bdc0d93268e258e95e6c83924552d75f3fc45d18545bb7c6e3b652248a3
pdf-font-stream PDF embedded font (sfnt) at offset 0x4C50 4824 bytes
font_01_sfnt_off00005c7b.bin
9fcfd2b2c12c9d480c0beec3ee39f05b9e518edc5177a7a5fcc68dff0371f8a2
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C7B 2092 bytes
font_02_sfnt_off0000661c.bin
7d69504fe2458e93722d7df0d5ebfecbc7449b28516e331507983f56b7a08bc9
pdf-font-stream PDF embedded font (sfnt) at offset 0x661C 12936 bytes
font_03_sfnt_off00008e8c.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x8E8C 4324 bytes