Malicious PDF — malware analysis report

Static analysis result for SHA-256 81ea336fd24fed28…

MALICIOUS

PDF

86.3 KB Created: 2020-08-05 01:10:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 808dd5723f20424923490ee2f0e4eb08 SHA-1: c394aafc8f3ea718228021135fda68990f6b40b6 SHA-256: 81ea336fd24fed28323e31799568aaa83adee5e7484340daf41b641453d63b99
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure via the URL https://ttraff.ru/pify?keyword=role+of+balochistan+in+pakistan+movement+pdf. This suggests the document is designed to redirect users to malicious sites, likely for phishing or malware distribution.

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=role+of+balochistan+in+pakistan+movement+pdf
    • http://files.jesrjournal.com/uploads/1/3/1/6/131606140/xavogojedogek.pdf
    • http://files.raftandrun.com/uploads/1/3/0/7/130776350/8618673.pdf
    • http://files.rockynazarene.com/uploads/1/3/2/3/132303269/2686599.pdf
    • https://cdn.shopify.com/s/files/1/0437/5671/6183/files/zosumibibunegipobudakinuk.pdf
    • https://cdn.shopify.com/s/files/1/0429/0176/6310/files/tanufu.pdf
    • https://cdn.shopify.com/s/files/1/0447/9241/4369/files/ageing_studies_and_lifetime_extension_of_materials.pdf
    • https://cdn.shopify.com/s/files/1/0431/2802/9345/files/mepixofadexifunugagi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8580/7269/files/boxotorojukavumidiwojinom.pdf
    • https://cdn.shopify.com/s/files/1/0428/5703/7990/files/47758224966.pdf
    • https://cdn.shopify.com/s/files/1/0440/0565/4678/files/3401081009.pdf
    • https://cdn.shopify.com/s/files/1/0432/7079/9510/files/50374984179.pdf
    • https://cdn.shopify.com/s/files/1/0432/2335/1458/files/react_toggle_class.pdf
    • https://cdn.shopify.com/s/files/1/0435/1960/6936/files/nopubuwolinimeboxajo.pdf
    • https://cdn.shopify.com/s/files/1/0433/8368/5270/files/22450279310.pdf
    • https://cdn.shopify.com/s/files/1/0430/6118/2617/files/25584806101.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_off000108e6.bin
1b7f830cc1fb70f1cb4bf2f13a69702763b48ca9c3d10d38d7999dc197d81976		 pdf-font-stream PDF embedded font (sfnt) at offset 0x108E6 5572 bytes
font_01_sfnt_off00011bb7.bin
bd82c774331f43b36a589f246ad1fdb2b61a659554b807654e15e0641cdbcd2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11BB7 15556 bytes

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