Malicious PDF — malware analysis report

Static analysis result for SHA-256 da121afb2f1e1c4b…

MALICIOUS

PDF

51.3 KB Created: 2020-08-23 01:10:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 41adb57eb9f9084f1d960dcca42fb689 SHA-1: a139090655824b6ae0fab036ed92175a50253180 SHA-256: da121afb2f1e1c4b301aad677c294e87b405fcc1eb5889f599937fa3a4413eee
120 Risk Score

Malware Insights

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

The PDF file 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 a malicious redirector link to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting the primary intent is to redirect the user to malicious infrastructure via a social engineering lure related to 'Whatsapp status shayari video love'.

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.com/pify?keyword=whatsapp+status+shayari+video++love
    • http://files.speedwaysginc.com/uploads/1/3/1/1/131163859/gilirazunibirepono.pdf
    • http://files.forestparkestateshoa.org/uploads/1/3/1/3/131382955/kajez_gunavi_ruwamazepixuku.pdf
    • http://files.riscooper.com/uploads/1/3/0/8/130814353/dedut_xuzetapudipotu_jewuf_kamiwuzokakot.pdf
    • https://cdn.shopify.com/s/files/1/0431/5014/7745/files/denisigarojaxe.pdf
    • https://cdn.shopify.com/s/files/1/0435/2930/6263/files/livezajozi.pdf
    • https://cdn.shopify.com/s/files/1/0431/7839/3749/files/ielts_academic_reading_practice_test_2.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/43778875991.pdf
    • https://cdn.shopify.com/s/files/1/0437/4285/5319/files/96487867316.pdf
    • https://cdn.shopify.com/s/files/1/0429/5534/1977/files/xilol.pdf
    • https://cdn.shopify.com/s/files/1/0435/4523/1515/files/44599628800.pdf
    • https://cdn.shopify.com/s/files/1/0440/6693/0840/files/ramufotuvibanukipimi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zekimopesafirizaxos.pdf
    • https://cdn.shopify.com/s/files/1/0435/9208/9759/files/bhopal_express_nizamuddin_platform_no.pdf
    • https://cdn.shopify.com/s/files/1/0427/9946/4611/files/73640921773.pdf
    • https://cdn.shopify.com/s/files/1/0435/0876/0742/files/3480805767.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/dagukerikibizi.pdf
    • https://cdn.shopify.com/s/files/1/0431/3448/4648/files/59987008100.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000694d.bin
adffc43ee25389b4794f8610db74fd9c1179bc0640d4c59e1af8297c59c7f665		 pdf-font-stream PDF embedded font (sfnt) at offset 0x694D 5220 bytes
font_01_sfnt_off00007b1c.bin
c1ed5d9ca7fd0a53b27916458732a577db726bd815041a268d8689952d14cb66		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B1C 10236 bytes
font_02_sfnt_off00009e24.bin
8c08a5ca30f7191253832396cd0e16b2863be47a0d76434bcfaca3abab847f9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E24 16128 bytes
font_03_sfnt_off0000b34f.bin
a29d926ce6756449171e79bc22218996b7a72dc3936f31b178a2409f2005153e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB34F 3036 bytes

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