Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6dcbd6b8a3fa675…

MALICIOUS

PDF

43.2 KB Created: 2020-07-20 09:04:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4adbd917d2ae774b6f5b5ff7d9cc2a63 SHA-1: 71084b8ccff96c1cec5f7309bfd11918ea66ad33 SHA-256: d6dcbd6b8a3fa675a484b5330b09076e2f0d1e1bf5c2df401a007045029fe284
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wb?keyword=launch%20creader%20vi%20manual%20portugues'. Additionally, another critical heuristic indicates a PDF link farm, suggesting an attempt to manipulate search engine results or distribute content through numerous linked PDFs. The document body, though heavily obfuscated, contains text related to 'launch creader vi manual portugues', which likely serves as a lure.

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.com/wb?keyword=launch%20creader%20vi%20manual%20portugues
    • http://files.harvestonthereservoir.org/uploads/1/3/0/9/130969433/7543947.pdf
    • http://files.hcchinese.org/uploads/1/3/0/7/130775251/bisomalotiro_zekam_gexepap.pdf
    • http://files.12monthbeauty.com/uploads/1/3/2/8/132814276/36ef0530fa731.pdf
    • http://files.youthharmonysd.com/uploads/1/3/0/9/130969446/1422711.pdf
    • http://files.hcchinese.org/uploads/1/3/0/7/130775251/bisomalotiro_zekam_gexep
    • https://bimibalosoj.files.wordpress.com/2020/06/97113291966.pdf
    • https://xujesowoze.files.wordpress.com/2020/06/zedidejipi.pdf
    • https://bijojaraduk.files.wordpress.com/2020/06/xuputuwojebukopusuwijuvo.pdf
    • https://tejejiwila.files.wordpress.com/2020/07/kuvosolidasa.pdf
    • https://begibidag.files.wordpress.com/2020/06/86162845726.pdf
    • https://nojalefise.files.wordpress.com/2020/07/68980655296.pdf
    • https://mozarexazave.files.wordpress.com/2020/07/sakate.pdf
    • https://nuxezobexet.files.wordpress.com/2020/07/dafukuleligim.pdf
    • https://cdn.shopify.com/s/files/1/0429/3538/6265/files/15314104151.pdf
    • https://cdn.shopify.com/s/files/1/0433/1008/8357/files/64320576959.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nasidobedibugamis.pdf
    • https://cdn.shopify.com/s/files/1/0431/8858/4605/files/rekujilekegirenaxorigis.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/75278808376.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nexunalazuzifoginiwaboliz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pafinekumukomotutawewokab.pdf
    • https://cdn.shopify.com/s/files/1/0427/7580/6119/files/raxuvodif.pdf
    • https://cdn.shopify.com/s/files/1/0433/3997/2773/files/likigunagox.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_off000062bf.bin
1128a09fab9479765816fdb5a889d4621bf29b7e6545a2fd406b5112e1c6b267
pdf-font-stream PDF embedded font (sfnt) at offset 0x62BF 5372 bytes
font_01_sfnt_off000074d4.bin
ba7fbdcd770b1be03c5d0ed323e47862e022ea2a0516222d8593dc62bf3500cf
pdf-font-stream PDF embedded font (sfnt) at offset 0x74D4 13504 bytes