Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3aa392e5c440634…

MALICIOUS

PDF

39.7 KB Created: 2020-08-21 03:23:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1ddc480c8de025d682d40691fb33efff SHA-1: f86f7623efe20face2916f6c726fbefa000c8375 SHA-256: e3aa392e5c4406347f013c8def3127dd1ba155279e8997f534f5ec8c28feb0c0
168 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is used in conjunction with a PDF link farm. The document body also contains the same malicious URL and a link to a Shopify-hosted PDF, suggesting a lure for cracked software. The presence of a security bypass instruction further indicates malicious intent.

Heuristics 5

  • 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.
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/pify?keyword=internet++manager+crack+full+version+myanmar
    • http://files.sharing-international.org/uploads/1/3/0/9/130969532/lugurowimoxupo.pdf
    • http://lalogam.demusproductions.org/uploads/1/3/2/6/132681352/fe87c9a951558.pdf
    • http://demanujur.tammybrideau.com/uploads/1/3/1/4/131406686/venekexetuxatid_xonimenifusu_ketudove_nopadu.pdf
    • http://lugafipew.christianterrace.com/uploads/1/3/1/6/131606782/24a64beb4543344.pdf
    • https://cdn.shopify.com/s/files/1/0431/2937/2836/files/golare.pdf
    • https://cdn.shopify.com/s/files/1/0432/5608/6696/files/zulovuvogep.pdf
    • https://cdn.shopify.com/s/files/1/0432/3550/8387/files/xisusululeketakeb.pdf
    • https://cdn.shopify.com/s/files/1/0438/1658/3325/files/togexogebomololimuxozafub.pdf
    • https://cdn.shopify.com/s/files/1/0431/5624/2594/files/mejit.pdf
    • https://cdn.shopify.com/s/files/1/0434/1678/0951/files/89673966116.pdf
    • https://cdn.shopify.com/s/files/1/0439/4146/2174/files/vlookup_function_in_excel.pdf
    • https://cdn.shopify.com/s/files/1/0462/8709/3920/files/1-_300_engineering_guide_classic_wow.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mosagewenusuwaguxizekud.pdf
    • https://cdn.shopify.com/s/files/1/0428/8475/9711/files/krause_and_becker_airless_paint_sprayer.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_off00005d63.bin
1466166fb41b2d3f1bce007faaccb9e8dc5d9ecab2d386de959784af9bddda80
pdf-font-stream PDF embedded font (sfnt) at offset 0x5D63 5364 bytes
font_01_sfnt_off00006f94.bin
6691fdaad9611eec814d276d1deaf099a3d816d4a116d9b18f409485b5f0b9d1
pdf-font-stream PDF embedded font (sfnt) at offset 0x6F94 10048 bytes