Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e0e7f3fe0b80252…

MALICIOUS

PDF

43.7 KB Created: 2020-08-04 04:49:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ee3fb7f03097fc0de0f25589af003e25 SHA-1: 3d7a71921ce59f65d5a9f1f5d9b64d41022c8396 SHA-256: 9e0e7f3fe0b802523bf7c1d68e9ce26094abc69031c9a4d8743a14495c446991
152 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to `https://ttraff.cc/pify?keyword=basic+counseling+skills+handout+pdf`. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on `cdn.shopify.com`. The ML classifier strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same malicious URL and other links, suggesting a lure to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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=basic+counseling+skills+handout+pdf
    • http://files.finalfinishdetailing.com/uploads/1/3/2/7/132710655/levin_linebedanelu_vidaki_vukadidi.pdf
    • http://files.jennaveirs.com/uploads/1/3/1/4/131454034/4393432.pdf
    • http://files.chengcheng.space/uploads/1/3/1/4/131438639/7ae1163ca701f69.pdf
    • http://files.lubbockministry.org/uploads/1/3/0/8/130815115/wajegu.pdf
    • http://kegetadi.emerge-studios.com/uploads/1/3/1/8/131872269/maputiwuvonalave.pdf
    • https://cdn.shopify.com/s/files/1/0430/9748/9572/files/lafiwijuk.pdf
    • https://cdn.shopify.com/s/files/1/0434/7117/5832/files/29914725172.pdf
    • https://cdn.shopify.com/s/files/1/0433/9610/4348/files/lanegawozulexukigimofezif.pdf
    • https://cdn.shopify.com/s/files/1/0433/6635/0998/files/14224696196.pdf
    • https://cdn.shopify.com/s/files/1/0435/5178/5109/files/54086600855.pdf
    • https://cdn.shopify.com/s/files/1/0432/5310/4790/files/96012145402.pdf
    • https://cdn.shopify.com/s/files/1/0429/9807/1450/files/tanaxofanomo.pdf
    • https://cdn.shopify.com/s/files/1/0435/6076/3555/files/97181880093.pdf
    • https://cdn.shopify.com/s/files/1/0434/6429/4557/files/lapufakapar.pdf
    • https://cdn.shopify.com/s/files/1/0438/6871/7216/files/vb._net_read_csv_file.pdf
    • https://cdn.shopify.com/s/files/1/0428/3868/7900/files/27032401926.pdf
    • https://cdn.shopify.com/s/files/1/0432/0333/0208/files/ravowafegomigenufejav.pdf
    • https://cdn.shopify.com/s/files/1/0434/4751/7341/files/86915173757.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006cef.bin
3c9f1ce04de5d9cbacff0e19ae175376d119060b113cbcd26b75265342f25752		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CEF 5436 bytes
font_01_sfnt_off00007f6e.bin
591d63361ed716cbe1f0a14b3a02179649d4cb7663a8c0fe760901893d46367b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F6E 10012 bytes

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