Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8927b6d06d13039…

MALICIOUS

PDF

48.2 KB Created: 2020-08-16 17:40:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8cc7aa6dda90e4e1451ea020b01e6937 SHA-1: 21981d7b184977132a45eddb5799d1159e503fe9 SHA-256: d8927b6d06d13039d3528c1a664f8416a6d255db9ccbb2a76a89809d1e1fe556
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=balwinder+sandhu+information+in+marathi'. This suggests the document's primary purpose is to redirect users to malicious infrastructure. The presence of many other PDF links, some hosted on potentially compromised or low-reputation domains, further supports a link farm or redirection attack pattern. No scripts were extracted from this sample.

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=balwinder+sandhu+information+in+marathi
    • http://karogagot.apollonasglykas.com/uploads/1/3/1/8/131871980/4319970.pdf
    • http://files.scotsbard.com/uploads/1/3/1/6/131636769/vowalefal-dafev-tuposir-lemonipefuje.pdf
    • http://files.baylakecamp.com/uploads/1/3/0/7/130775762/gujoligo.pdf
    • http://files.jennifernunweilerrmt.com/uploads/1/3/2/6/132680808/xomisikanobob.pdf
    • https://cdn.shopify.com/s/files/1/0437/7142/9016/files/53204907766.pdf
    • https://cdn.shopify.com/s/files/1/0451/4558/7877/files/action_research_project.pdf
    • https://cdn.shopify.com/s/files/1/0436/5415/2342/files/46636168574.pdf
    • https://cdn.shopify.com/s/files/1/0431/9058/3458/files/416135928.pdf
    • https://cdn.shopify.com/s/files/1/0450/3240/7198/files/angular_tutorial_tutorialspoint.pdf
    • https://cdn.shopify.com/s/files/1/0431/1996/8417/files/principles_of_microeconomics_10th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0429/3433/7695/files/8801061674.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89352644259.pdf
    • https://cdn.shopify.com/s/files/1/0434/1393/0142/files/xowopaxigap.pdf
    • https://cdn.shopify.com/s/files/1/0432/0821/2638/files/dolilimin.pdf
    • https://cdn.shopify.com/s/files/1/0433/0940/0214/files/missing_return_statement_java.pdf
    • https://cdn.shopify.com/s/files/1/0429/9590/8761/files/animals_coloring_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0431/0564/8791/files/new_assamese_bihu_video_song_free.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067af.bin
c31d5437bc853f0404aa5c0b1d6f786a34b2f3a485f05c3052d1e79014b561ee
pdf-font-stream PDF embedded font (sfnt) at offset 0x67AF 5288 bytes
font_01_sfnt_off00007983.bin
b0b8853113509ebb808799f84cf2a7cc157c551e2cd87d13748c4a39e4c051ff
pdf-font-stream PDF embedded font (sfnt) at offset 0x7983 2632 bytes
font_02_sfnt_off000084df.bin
4da5ddc3e9693bd2ec3ac649596fd374a883206c452ccbf37dbfa9f2a93416e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x84DF 14964 bytes