Malicious PDF — malware analysis report

Static analysis result for SHA-256 58425e84e36c1569…

MALICIOUS

PDF

45.5 KB Created: 2020-08-11 12:46:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a48c968aba685621fada07cbf06477f6 SHA-1: 8dc248749b6a6e1fea537bee62fe1ff95f2e7729 SHA-256: 58425e84e36c1569901ac435b5ec300e0047ff9dcd608763a503cb67c03de355
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a meal planner. This redirector likely leads to further malicious content or exploits. The document also exhibits characteristics of a link farm, with numerous outbound links to other PDFs hosted on various domains. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed for malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=weekly+meal+planner+with+grocery+list+pdf
    • http://files.nolafayedodd.com/uploads/1/3/2/6/132682833/nolotixud-xagoxa-napezasonaxiv-sudobolajato.pdf
    • http://files.summersiartcrafts.com/uploads/1/3/1/3/131384432/ce3d46dff.pdf
    • http://files.backdoorfriendspurebredcatrescue.org/uploads/1/3/2/6/132695546/dujaf_lunekuwojoxewov_suwasaxuwewab.pdf
    • http://loxuja.goodlifebulldogrescue.org/uploads/1/3/0/8/130814328/mewudisafe.pdf
    • http://files.oyeskagreens.com/uploads/1/3/0/9/130968947/fejitixofinipuw-miputedemowuvu-moxojawemimon.pdf
    • https://cdn.shopify.com/s/files/1/0430/8955/9705/files/merge_sort_space_complexity.pdf
    • https://cdn.shopify.com/s/files/1/0431/1531/5349/files/mexexugejaxaliru.pdf
    • https://cdn.shopify.com/s/files/1/0431/6174/7605/files/46301634361.pdf
    • https://cdn.shopify.com/s/files/1/0432/3196/9438/files/sugutisaloxolavesag.pdf
    • https://cdn.shopify.com/s/files/1/0431/7511/6960/files/ipl_2016_schedule.pdf
    • https://cdn.shopify.com/s/files/1/0435/4329/8207/files/lee_load_all2.pdf
    • https://cdn.shopify.com/s/files/1/0437/1437/9930/files/adobe_reader_not_opening_on_mac.pdf
    • https://cdn.shopify.com/s/files/1/0432/3183/8368/files/compex_electrode_placement_guide.pdf
    • https://cdn.shopify.com/s/files/1/0427/9762/9596/files/39002830369.pdf
    • https://cdn.shopify.com/s/files/1/0439/0522/0776/files/22879574071.pdf
    • https://cdn.shopify.com/s/files/1/0432/3993/2067/files/bawaxozogugubitomorakexuv.pdf
    • https://cdn.shopify.com/s/files/1/0434/2788/9308/files/bupugu.pdf
    • https://cdn.shopify.com/s/files/1/0433/5570/1398/files/ganiwusu.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_off00006572.bin
5f630d81bfac7518c9be73ae5e6fd7a8c03500118a0efefc416998f698f78d9b
pdf-font-stream PDF embedded font (sfnt) at offset 0x6572 5628 bytes
font_01_sfnt_off00007881.bin
6250410dc29670bff2ca2c018440478e82f3d3b40c013b54a08c6a0d71226280
pdf-font-stream PDF embedded font (sfnt) at offset 0x7881 10032 bytes
font_02_sfnt_off00009adc.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0x9ADC 4324 bytes