Malicious PDF — malware analysis report

Static analysis result for SHA-256 a8c555dd9b99a038…

MALICIOUS

PDF

46.5 KB Created: 2020-08-23 06:33:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6ddc512f0a513015cfa427c17a2cf855 SHA-1: c04bb120594d516719e9f1149b05c7628d45967e SHA-256: a8c555dd9b99a038a6df5e554a679ca3ceed79dd36918bfb03100d5eb69fe081
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.ru) that is known to host malicious content. The document body, though heavily obfuscated, contains references to the redirector URL and other PDF files hosted on Shopify. This indicates a link farm or redirection attack designed to lure users to malicious sites.

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.ru/pify?keyword=tactics+for+listening+third+edition+expanding+pdf
    • http://pugod.demclubwicomico.org/uploads/1/3/2/6/132683097/zakupas_goromitizozukip.pdf
    • http://gamajudiv.saintsophiachurch.org/uploads/1/3/1/3/131381204/8176e.pdf
    • http://files.erenfe.com/uploads/1/3/2/8/132816165/8159038.pdf
    • http://files.herbert-forton.com/uploads/1/3/1/4/131483361/zanitarasaro-muwini-lijor-lemevopujivekok.pdf
    • http://lupofiru.stumpysconcessions.com/uploads/1/3/2/6/132680813/zufosujozez.pdf
    • https://cdn.shopify.com/s/files/1/0431/8016/3232/files/96678772672.pdf
    • https://cdn.shopify.com/s/files/1/0436/1371/6643/files/sejarah_pendidikan_islam_di_indonesia.pdf
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/loxurapuvakerozesat.pdf
    • https://cdn.shopify.com/s/files/1/0438/3476/9565/files/92273984410.pdf
    • https://cdn.shopify.com/s/files/1/0437/0386/1401/files/73192254642.pdf
    • https://cdn.shopify.com/s/files/1/0429/4161/2199/files/94590483763.pdf
    • https://cdn.shopify.com/s/files/1/0438/0635/9713/files/49247099330.pdf
    • https://cdn.shopify.com/s/files/1/0428/4504/4892/files/vetasobixulitej.pdf
    • https://cdn.shopify.com/s/files/1/0434/8978/8069/files/catecismo_da_total_consagrao_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/6576/1176/files/wurumafideperi.pdf
    • https://cdn.shopify.com/s/files/1/0428/1594/6911/files/bruchrechnen_einfach.pdf
    • https://cdn.shopify.com/s/files/1/0431/5555/4455/files/63540066759.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_off000050c1.bin
214f3d62d6c960a280cf3bd96d841dd87880dfc0518f250eb1136034cac3999a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x50C1 5220 bytes
font_01_sfnt_off00006270.bin
423fa9025b152b5db942736b39c23f58125289411c336c2c735f87ff331bec1e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6270 10716 bytes
font_02_sfnt_off00008681.bin
4c75516de7fd94817630f1b761b397627307ded82c92707b7c583ed622fece73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8681 16836 bytes
font_03_sfnt_off00009e44.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E44 4324 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.