Malicious PDF — malware analysis report

Static analysis result for SHA-256 dae153f8e87793b3…

MALICIOUS

PDF

45.8 KB Created: 2020-08-14 21:23:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ce08624df9fe5a926bbdf3147d9d192c SHA-1: 17cdd9f736793b92f279e0735e206e677962d9ee SHA-256: dae153f8e87793b3252af00025522afb0025bb22bbd3e9d60ba9cd8aec0b4fba
168 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=fake+email+generator+apk'. This URL, combined with the 'SE_URGENCY_LURE' and 'SE_PASSWORD_ARCHIVE_LURE' heuristics, suggests a phishing or malware delivery attempt. The document also hosts a large number of external PDF links, likely for SEO manipulation to improve search engine ranking for malicious content.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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.cc/pify?keyword=fake+email+generator+apk
    • http://files.trainlikeaprodc.com/uploads/1/3/1/3/131384484/betozulaguxi.pdf
    • http://files.lowellptsa.org/uploads/1/3/2/7/132740309/jedasufozis.pdf
    • http://files.customweddingringsmelbourne.com/uploads/1/3/1/1/131164063/mefumedasel-bizirizovez.pdf
    • http://files.wornworx.com/uploads/1/3/1/4/131437770/fugekatukos.pdf
    • http://zawasa.azbroadwaykids.com/uploads/1/3/0/7/130776485/tikopujiri_sezawewuzun_patin.pdf
    • https://cdn.shopify.com/s/files/1/0447/3470/9914/files/ca_books_icap.pdf
    • https://cdn.shopify.com/s/files/1/0431/5247/4267/files/xelitidanagijisow.pdf
    • https://cdn.shopify.com/s/files/1/0431/3012/6490/files/calendario_laboral_colombia_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/9113/1554/files/napotu.pdf
    • https://cdn.shopify.com/s/files/1/0433/7677/1233/files/47971626508.pdf
    • https://cdn.shopify.com/s/files/1/0433/6753/0657/files/super_metroid_enemies.pdf
    • https://cdn.shopify.com/s/files/1/0437/9095/8752/files/nibawikolovij.pdf
    • https://cdn.shopify.com/s/files/1/0434/5361/2182/files/arduino_robot_projects.pdf
    • https://cdn.shopify.com/s/files/1/0436/9298/2427/files/us_history_workbook.pdf
    • https://cdn.shopify.com/s/files/1/0428/1470/1735/files/application_of_biotechnology_in_medicine.pdf
    • https://cdn.shopify.com/s/files/1/0433/9938/1146/files/basic_arrhythmias.pdf
    • https://cdn.shopify.com/s/files/1/0438/3732/5462/files/20850276599.pdf
    • https://cdn.shopify.com/s/files/1/0428/2990/6079/files/lawobixirolowurixalipoxas.pdf
    • https://cdn.shopify.com/s/files/1/0431/6394/3067/files/download_catalogo_hinode_ciclo_2_2020.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000697f.bin
7ccb7e56ace143577b7d303ae470f5dc328515e74419205aeea76ec02c786d43		 pdf-font-stream PDF embedded font (sfnt) at offset 0x697F 4768 bytes
font_01_sfnt_off00007991.bin
ba9655916fa5b25f7c741f0ae68f459bcea374ea1285fda910a1597cdef59cc2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7991 10024 bytes
font_02_sfnt_off00009bc1.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BC1 4324 bytes

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