Malicious PDF — malware analysis report

Static analysis result for SHA-256 e63efb17093e8fa9…

MALICIOUS

PDF

36.6 KB Created: 2020-08-09 04:29:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 028b64b48d683c8fff8f8e0a3099b80b SHA-1: 8ba92415eca3e19bd829a42117450dfb28cb7812 SHA-256: e63efb17093e8fa958e4918fd986c6aca538ae0b33331ea675f0607f0f201098
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple critical heuristics for containing malicious redirector links and a large number of external PDF links, suggesting a link farm or SEO manipulation tactic. One of the embedded URLs, 'https://ttraff.cc/pify?keyword=bromination+of+acetanilide+pdf', is identified as a malicious redirector. The document body contains garbled text but includes the same malicious URL, reinforcing its presence. 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=bromination+of+acetanilide+pdf
    • http://files.whittneysmith.com/uploads/1/3/1/4/131482968/vomadawusuzupu.pdf
    • http://files.akademikreatifindonesia.com/uploads/1/3/1/6/131636828/41bf1c5.pdf
    • http://files.tnmagician.com/uploads/1/3/1/4/131453256/pudotowan-muvibowujumer.pdf
    • http://files.neckbox.com/uploads/1/3/2/6/132681617/tokusi.pdf
    • http://files.mercybiblebaptistchurch.com/uploads/1/3/0/7/130775506/7d13948af61.pdf
    • https://cdn.shopify.com/s/files/1/0437/6605/5063/files/97749559426.pdf
    • https://cdn.shopify.com/s/files/1/0432/2977/3982/files/lemajexafubevolu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9798/1082/files/10587953943.pdf
    • https://cdn.shopify.com/s/files/1/0430/4705/9607/files/88067651870.pdf
    • https://cdn.shopify.com/s/files/1/0433/9607/1578/files/74197298004.pdf
    • https://cdn.shopify.com/s/files/1/0437/3797/2897/files/vijonunonuvabivagaf.pdf
    • https://cdn.shopify.com/s/files/1/0438/9886/3771/files/novujafuvaxuzotaruj.pdf
    • https://cdn.shopify.com/s/files/1/0439/7596/6878/files/6529281148.pdf
    • https://cdn.shopify.com/s/files/1/0449/0860/9703/files/50495307396.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/zowofovem.pdf
    • https://cdn.shopify.com/s/files/1/0433/3341/9162/files/dogugijeges.pdf
    • https://cdn.shopify.com/s/files/1/0432/5670/9288/files/rifemadapevupafadet.pdf
    • https://cdn.shopify.com/s/files/1/0435/6059/9711/files/kowenikesijuguvakejij.pdf
    • https://cdn.shopify.com/s/files/1/0432/2023/8503/files/33934586394.pdf
    • https://cdn.shopify.com/s/files/1/0437/3191/0821/files/bujovewenevemik.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/fil

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000506f.bin
6665a2a76e93439b508873fffe36ff12fa2d017da860002f4533efccc2ee29a1
pdf-font-stream PDF embedded font (sfnt) at offset 0x506F 5172 bytes
font_01_sfnt_off000061ee.bin
f4c6a13dc14d45492f7fb8d79e94805387c75b585167650d259445cd888a7f16
pdf-font-stream PDF embedded font (sfnt) at offset 0x61EE 10608 bytes