Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c333f6b66754255…

MALICIOUS

PDF

51.6 KB Created: 2020-09-17 08:12:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 111d71247943d7b473f58376303863d8 SHA-1: 34b72e1845bf856dc781e3b9f395b213809e2772 SHA-256: 9c333f6b66754255560966ee69986a7f371d135cf18c1192b59bbf7c7fe999e2
160 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to benign-looking PDF files, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.me/wix?keyword=st+landry+parish+daily+arrest+report', suggesting a lure to disguise the malicious redirect. The presence of a visible LOLBin command execution instruction indicates the potential for further malicious activity beyond simple redirection.

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.
  • 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.
  • 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
  • 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.me/wix?keyword=st+landry+parish+daily+arrest+report
    • http://files.hwah.ca/uploads/1/3/1/3/131382387/e09c12e2.pdf
    • http://files.fourfilliesfarmok.com/uploads/1/3/0/7/130738700/be43dd.pdf
    • http://files.victoriameade.com/uploads/1/3/1/4/131454345/tanipegeke_luxokujekapusid_zumowu.pdf
    • http://fifodeg.rlewislaw.net/uploads/1/3/2/8/132814838/selatuwelukaze.pdf
    • http://files.innovationneighborhoodphl.com/uploads/1/3/1/8/131871433/6385103.pdf
    • http://fejolig.skinbeautybymaggie.com/uploads/1/3/1/1/131164250/sisaxuzisase-wujodifakuw-liwerojaka-zodotil.pdf
    • http://files.wumcmd.org/uploads/1/3/2/7/132712072/3447554.pdf
    • https://94e57d12-1216-4240-a434-969ecbff4694.filesusr.com/ugd/b4a829_e94656d175e04702b473195bf98d572c.pdf?index=true
    • https://ddb8ec48-9825-41ef-b3ff-6b2fdc75991d.filesusr.com/ugd/f6a907_9f7ce1fb22da49dd94b4f1d1cb89a21e.pdf?index=true
    • https://78698020-70f5-48a9-9ffa-26919a2b575f.filesusr.com/ugd/09c3c7_d6b0615cae71464e98b5c8731d86c3f9.pdf?index=true
    • https://d82ca99c-c5ad-4206-9957-2f106302f1cf.filesusr.com/ugd/74e905_69375b401e154520afb5a89938c72891.pdf?index=true
    • https://289a7f24-8d38-4122-8e33-8742af451a62.filesusr.com/ugd/5360f8_b3164483c8b243769b9373782bc421a2.pdf?index=true
    • https://b30e2544-3f07-47b1-a42b-7e850d97a301.filesusr.com/ugd/221eaa_9e3094eaec8d4a37a7fbb3a38ffab55e.pdf?index=true
    • https://88ff4fc0-c844-4b08-8b54-a7173382db3c.filesusr.com/ugd/7603ae_2804fd089dee4c469e791620bd735d87.pdf?index=true
    • https://d592bb27-81d3-452b-a722-5bc0b95dcad2.filesusr.com/ugd/49be48_af7967e706b54619944a241da5edbff7.pdf?index=true
    • 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_off000075e3.bin
4aba2bb845853324476be69e5ed1bf4ff35002942389efac2b843cac1129f0e9
pdf-font-stream PDF embedded font (sfnt) at offset 0x75E3 2828 bytes
font_01_sfnt_off00007fde.bin
9daeeb095adc800578ce09035a8fd961c4c7bd047138795b46d4455c1b0d8450
pdf-font-stream PDF embedded font (sfnt) at offset 0x7FDE 5040 bytes
font_02_sfnt_off000090eb.bin
07f693da93857aa00ba3ffd3bdddf9067cf80e13530499a15fe4e3cfe67bebb5
pdf-font-stream PDF embedded font (sfnt) at offset 0x90EB 9916 bytes
font_03_sfnt_off0000b2db.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0xB2DB 4324 bytes