Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa1c007fef91ac6d…

MALICIOUS

PDF

47.8 KB Created: 2020-08-09 02:47:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 760723a9d934f4eeae57be4cec0ce8ef SHA-1: 8358c70002adbc5a2b2479b42a16e4abf42ec25e SHA-256: aa1c007fef91ac6d21b2da25e40d41bc2eefb4d583a238993241fed61075c553
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one specifically pointing to a known malicious redirector. This suggests the document is designed to lure users to malicious sites. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm strategy to improve search engine ranking for malicious content. No scripts were extracted from this sample.

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.cc/pify?keyword=conversation+anglais+fran%25C3%25A7ais+pdf
    • http://files.tribalexperiences.com/uploads/1/3/1/3/131379743/xogolov-jebogudipigasaw-manubawokiwuza-sisubexajisenaf.pdf
    • http://golovix.lovethatfood.com.au/uploads/1/3/1/8/131856158/1f2f8e2.pdf
    • http://kitiladab.artsandsmartsinc.com/uploads/1/3/0/9/130969723/nekudoma_pesez.pdf
    • http://files.inspiringeducation.net/uploads/1/3/0/8/130874162/vovujudob_xesema_riwomoraw_lajesix.pdf
    • https://cdn.shopify.com/s/files/1/0432/2859/4336/files/gipanafojawo.pdf
    • https://cdn.shopify.com/s/files/1/0430/8677/4436/files/gerugepuripemu.pdf
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/canara_bank_neft_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/57032902602.pdf
    • https://cdn.shopify.com/s/files/1/0433/8037/5704/files/core_and_advanced_java_mcq_questions_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0432/5621/7750/files/gosefagovawera.pdf
    • https://cdn.shopify.com/s/files/1/0431/3861/3415/files/bowuxojuvuza.pdf
    • https://cdn.shopify.com/s/files/1/0430/3811/3955/files/64407305108.pdf
    • https://cdn.shopify.com/s/files/1/0429/8244/1113/files/29763024547.pdf
    • https://cdn.shopify.com/s/files/1/0431/8271/9136/files/43426658106.pdf
    • https://cdn.shopify.com/s/files/1/0435/9471/1203/files/magic_the_gathering_books_download.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_off000060ad.bin
68c3067d6e23d6462b14c12f0ff98aef5d65cb72a61fbaccaef8c09dc23fcb12
pdf-font-stream PDF embedded font (sfnt) at offset 0x60AD 5356 bytes
font_01_sfnt_off000072f4.bin
69953670638a768f9f708d7204ce934e00a8ae712a4f9847458860808e03b453
pdf-font-stream PDF embedded font (sfnt) at offset 0x72F4 12692 bytes
font_02_sfnt_off00009a61.bin
aad9bc0f36eadc3314e08670b59090120051e308b357201f134af3d0b781b2b0
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A61 16312 bytes