Malicious PDF — malware analysis report

Static analysis result for SHA-256 f782a53adb717395…

MALICIOUS

PDF

42.1 KB Created: 2020-08-23 05:26:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 058ec4d96626622f1cca9c889855de21 SHA-1: cfcbad34696a2a110153c938e0a542024c8b14ef SHA-256: f782a53adb7173950955cbc57778ae0ecc26864c4dd05151ffca63d1944f0f3b
150 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. The primary malicious URL, https://ttraff.ru/pify?keyword=target+market+analysis+template, is identified as a redirector. The document body, though partially corrupted, suggests a lure related to a 'target market analysis template', aiming to trick users into clicking the malicious links. The ML classifier also strongly indicated maliciousness.

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.ru/pify?keyword=target+market+analysis+template
    • http://birasemu.amandaghahremani.com/uploads/1/3/2/7/132712615/favalakivu_kunevibuwamigu_romuzinoze.pdf
    • http://gixasupeg.alitheajosaphine.com/uploads/1/3/2/7/132710621/3598147.pdf
    • http://files.wataworx.com/uploads/1/3/0/9/130969633/bemosanebukilamegok.pdf
    • http://ledigenus.csrsolutionsco.org/uploads/1/3/0/7/130776394/pigepil.pdf
    • http://files.ipac-victoria.ca/uploads/1/3/0/9/130969470/basem.pdf
    • https://cdn.shopify.com/s/files/1/0427/6961/2966/files/everybody_move_your_body.pdf
    • https://cdn.shopify.com/s/files/1/0432/5887/1963/files/barogibixumir.pdf
    • https://cdn.shopify.com/s/files/1/0434/3637/6214/files/alabama_drivers_license_book.pdf
    • https://cdn.shopify.com/s/files/1/0449/1676/8923/files/demurewudipagu.pdf
    • https://cdn.shopify.com/s/files/1/0433/2647/2345/files/oxy_acetylene_gas_welding.pdf
    • https://cdn.shopify.com/s/files/1/0440/7105/9608/files/conformation_of_alkanes_and_cycloalkanes.pdf
    • https://cdn.shopify.com/s/files/1/0432/3573/7755/files/ambedkar_books_in_telugu_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/3329/7058/files/53907030722.pdf
    • https://cdn.shopify.com/s/files/1/0428/3393/6547/files/wuriligolonazapotubisik.pdf
    • https://cdn.shopify.com/s/files/1/0439/9936/3222/files/papababanagaratewujab.pdf
    • https://cdn.shopify.com/s/files/1/0438/7300/9819/files/59177680184.pdf
    • https://cdn.shopify.com/s/files/1/0431/8583/2096/files/xupanosizixuzofukoxatu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3636/0351/files/29597011792.pdf
    • https://cdn.shopify.com/s/files/1/0435/5060/5461/files/livaganugemadekenofojovaw.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_off00006758.bin
86474d4c47bee11a5dd8955ec2ac445f9e7f6c3303650c43a2914001d50af991
pdf-font-stream PDF embedded font (sfnt) at offset 0x6758 5252 bytes
font_01_sfnt_off0000792a.bin
867904db5c2ab9038ce7c4f66698409fba38866c871fd19c2d8007d96e2b1204
pdf-font-stream PDF embedded font (sfnt) at offset 0x792A 9936 bytes