Malicious PDF — malware analysis report

Static analysis result for SHA-256 9335960d2d4dff58…

MALICIOUS

PDF

155.9 KB Created: 2020-08-20 00:13:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bd53019800af0c3d6cec926fe3e7bc4d SHA-1: f16e9ec720f1090b0f06169361fffb7dc140ee62 SHA-256: 9335960d2d4dff58aa8b09839477cbd99e286d2488c75cb5a0455f45fa0f92cd
108 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, which is a strong indicator of malicious intent. The document body, though heavily obfuscated, contains text fragments related to 'Framelayout in xamarin android' and a URL that matches the malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the link's malicious nature. The heuristic 'SE_LOLBIN_RUN_COMMAND' suggests that the document may attempt to execute commands, potentially via PowerShell, to further its malicious objectives. The 'SE_URGENCY_LURE' heuristic indicates a social engineering tactic to prompt immediate user action.

Heuristics 4

  • 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.
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=framelayout+in+xamarin+android
    • http://files.devitthouse.com/uploads/1/3/0/7/130776817/6003574.pdf
    • http://files.gettysburgchambermusic.org/uploads/1/3/1/4/131483830/taxusubijazaxil.pdf
    • http://files.digmycurlakitas.com/uploads/1/3/2/6/132681910/nifegotiso-fatusij.pdf
    • https://cdn.shopify.com/s/files/1/0435/4749/2506/files/salelu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5192/5155/files/doputebufopepifo.pdf
    • https://cdn.shopify.com/s/files/1/0432/6172/2788/files/zapixebaxerumotejoto.pdf
    • https://cdn.shopify.com/s/files/1/0430/1216/1685/files/joint_venture_agreement_checklist.pdf
    • https://cdn.shopify.com/s/files/1/0437/0127/2729/files/pte_academic_writing_practice_test.pdf
    • https://cdn.shopify.com/s/files/1/0436/9799/5944/files/bupujekuwetaveva.pdf
    • https://cdn.shopify.com/s/files/1/0427/8065/5775/files/wowonowafi.pdf
    • https://cdn.shopify.com/s/files/1/0433/0799/1208/files/18163269112.pdf
    • https://cdn.shopify.com/s/files/1/0433/9436/7649/files/texaponekiv.pdf
    • https://cdn.shopify.com/s/files/1/0434/4017/7317/files/savopetug.pdf
    • https://cdn.shopify.com/s/files/1/0430/0426/4602/files/wordpress_get_blog_url.pdf
    • https://cdn.shopify.com/s/files/1/0430/6052/7265/files/zifafuwuf.pdf
    • https://cdn.shopify.com/s/files/1/0431/8189/9944/files/25253281436.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_off0002245d.bin
144ab5bccd03dda4e6f12a7147079c1511fbb43c45a1dc593b5ee453ca036f2f
pdf-font-stream PDF embedded font (sfnt) at offset 0x2245D 4916 bytes
font_01_sfnt_off00023508.bin
eef8b089fce0cfb778e6e4d78b4f02a80619c8b6ec81c04df75fb0096244dd3f
pdf-font-stream PDF embedded font (sfnt) at offset 0x23508 14248 bytes