Malicious PDF — malware analysis report

Static analysis result for SHA-256 aed962c23d3a1ef9…

MALICIOUS

PDF

42.2 KB Created: 2020-08-01 14:52:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e299843ece587385b549a1d8f668490c SHA-1: 386cec3fb669f53b8f23a133e2f63c51e54341a3 SHA-256: aed962c23d3a1ef9aafac2f6995829aa4efa7478d23c6eaac7ceb2c41d1cca49
154 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a free movie streaming service, aiming to trick users into clicking it. The link leads to 'https://ttraff.cc/pify?keyword=pirates+2+stagnetti+revenge+watch+online+free', which is flagged as malicious. The document also contains a large number of SEO-optimized links pointing to various PDF files hosted on Shopify, likely to improve search engine ranking for malicious content. No scripts were extracted from this sample.

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=pirates+2+stagnetti+revenge+watch+online+free
    • http://files.vip-manalive.com/uploads/1/3/1/4/131454549/lotakezudepaneze.pdf
    • http://files.myrnaburksfineart.com/uploads/1/3/1/4/131408100/senubujugajobukile.pdf
    • http://files.melodyrgreenbooks.com/uploads/1/3/0/7/130740065/8211051.pdf
    • https://cdn.shopify.com/s/files/1/0437/5350/4917/files/95079595747.pdf
    • https://cdn.shopify.com/s/files/1/0432/3429/5966/files/85381665566.pdf
    • https://cdn.shopify.com/s/files/1/0432/2358/0839/files/wujigidaraxilumogu.pdf
    • https://cdn.shopify.com/s/files/1/0434/8110/4541/files/27614302596.pdf
    • https://cdn.shopify.com/s/files/1/0434/7808/9878/files/bedasugipunegodar.pdf
    • https://cdn.shopify.com/s/files/1/0428/2990/6079/files/lawobixirolowurixalipoxas.pdf
    • https://cdn.shopify.com/s/files/1/0429/1562/7175/files/48576439152.pdf
    • https://cdn.shopify.com/s/files/1/0433/9289/3093/files/visexoribabefinuzigofe.pdf
    • https://cdn.shopify.com/s/files/1/0433/7870/4536/files/41157945434.pdf
    • https://cdn.shopify.com/s/files/1/0434/9391/6837/files/baxexivikudefumopi.pdf
    • https://cdn.shopify.com/s/files/1/0431/6489/3344/files/nafesoleruf.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0071/files/86337756923.pdf
    • https://cdn.shopify.com/s/files/1/0431/6830/1212/files/kisopajafon.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_off000065bc.bin
2695921d750dca706eacfa516f94d348ca4d88c8d869887c3dd36e30d2f03931
pdf-font-stream PDF embedded font (sfnt) at offset 0x65BC 5428 bytes
font_01_sfnt_off0000784b.bin
a0613c727e688fbb6bc016666bc32db2e7bee46e4a379e45f762b9d0409fdf45
pdf-font-stream PDF embedded font (sfnt) at offset 0x784B 10340 bytes