Malicious PDF — malware analysis report

Static analysis result for SHA-256 8639db4be1e5dfcb…

MALICIOUS

PDF

114.1 KB Created: 2020-07-29 10:04:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b70ed617d0cc8fdf7057c5765b969d19 SHA-1: 214dc23242617ca690fcff5f22a57eff493f89bc SHA-256: 8639db4be1e5dfcb69d23bbc0c45ac227fe9d3ee5b61813a3341e4d37b437798
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a large number of embedded links, many of which point to external websites. One critical heuristic indicates that the PDF links to known malicious redirector infrastructure, specifically 'ttraff.cc'. The document body, though heavily obfuscated, suggests a lure related to 'Botanical names of plants pdf'. The presence of numerous external links, including those hosted on Shopify, indicates a link farm or SEO poisoning attempt to drive traffic to malicious sites. No scripts were extracted from this sample.

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=botanical+names+of+plants+pdf
    • http://files.rochestercursillo.com/uploads/1/3/1/4/131406412/vezesigu-sesugazurujod-tawavimufapuvu.pdf
    • http://files.tresasbridal.com/uploads/1/3/2/8/132814624/bixawojori-nebekoxa-gesalor-tapatalusupojad.pdf
    • http://files.brushcreekcreamery.com/uploads/1/3/0/7/130776567/karimiduz.pdf
    • http://files.150spear.com/uploads/1/3/0/8/130874683/giwasugezoka.pdf
    • http://files.franciscanfoundation.org/uploads/1/3/1/4/131438509/841a2d01ef1c.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/14985018959.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/laxefasigapabaxirasu.pdf
    • https://cdn.shopify.com/s/files/1/0437/3273/0008/files/lexubitumezu.pdf
    • https://cdn.shopify.com/s/files/1/0438/0449/1937/files/56442030201.pdf
    • https://cdn.shopify.com/s/files/1/0427/5778/3718/files/93448018890.pdf
    • https://cdn.shopify.com/s/files/1/0433/4003/8302/files/63467250103.pdf
    • https://cdn.shopify.com/s/files/1/0434/0521/3846/files/58988732815.pdf
    • https://cdn.shopify.com/s/files/1/0432/0195/3952/files/ranefitokonogisiwudaril.pdf
    • https://cdn.shopify.com/s/files/1/0429/7339/7145/files/64157293831.pdf
    • https://cdn.shopify.com/s/files/1/0438/2051/5488/files/mokusomirifirunufonom.pdf
    • https://cdn.shopify.com/s/files/1/0430/6763/7917/files/lojutebizedebiz.pdf
    • https://cdn.shopify.com/s/files/1/0429/1543/0559/files/16364258693.pdf
    • https://cdn.shopify.com/s/files/1/0430/5331/8298/files/59428762857.pdf
    • https://cdn.shopify.com/s/files/1/0433/3699/0885/files/detomoliveso.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_off000163c6.bin
a43effbadf514697bfa631f7d2b29b17504b751013625ed2362cdbe0de2ff6d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x163C6 5044 bytes
font_01_sfnt_off000174cf.bin
1c96a901cd54815726306db978782b933c253631ec3b4b85cddd19663136b501		 pdf-font-stream PDF embedded font (sfnt) at offset 0x174CF 15672 bytes
font_02_sfnt_off0001a598.bin
c398bfab4e5c9cac1b23aed26100ed1969cf8220adf7adeeb12de3002a392988		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A598 16136 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.