Malicious PDF — malware analysis report

Static analysis result for SHA-256 e124e63661c89ee5…

MALICIOUS

PDF

42.9 KB Created: 2020-08-12 04:02:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54debf4ad755468c6e930ab06eb8b4eb SHA-1: ab293d8cd8f259863fdd7702f40c8920a0a65675 SHA-256: e124e63661c89ee582d00c8a930ad931f6f4935c071b00fedf26cbebb0424930
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is 'https://ttraff.cc/pify?keyword=frame+relay+configuration+cisco+router+pdf'. This suggests the document is designed to trick users into visiting malicious infrastructure by appearing to offer a technical document. 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=frame+relay+configuration+cisco+router+pdf
    • http://files.assembly2237.kofc.com/uploads/1/3/1/4/131437886/buremowaj-xojedef.pdf
    • http://boxixavim.svelks.org/uploads/1/3/1/0/131070161/6999869.pdf
    • http://files.emmabankshomeopath.com/uploads/1/3/1/4/131407818/7012168.pdf
    • http://files.wildchildcoffeeproject.com/uploads/1/3/0/8/130814611/1875165.pdf
    • http://files.simplybookkeepingllc.com/uploads/1/3/0/9/130969454/pozokaga.pdf
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/26408974119.pdf
    • https://cdn.shopify.com/s/files/1/0434/4738/6268/files/53889447080.pdf
    • https://cdn.shopify.com/s/files/1/0434/5724/9430/files/vijulajafisafexikawodeda.pdf
    • https://cdn.shopify.com/s/files/1/0450/5973/5704/files/renaissance_architecture_in_france.pdf
    • https://cdn.shopify.com/s/files/1/0429/1995/2550/files/oracle_workflow_administrator_s_guide_release_12._1.pdf
    • https://cdn.shopify.com/s/files/1/0429/6700/7386/files/jurnal_bronkitis_kronis.pdf
    • https://cdn.shopify.com/s/files/1/0449/1057/5771/files/ankylos_implant_system.pdf
    • https://cdn.shopify.com/s/files/1/0429/1526/6713/files/jinomewekak.pdf
    • https://cdn.shopify.com/s/files/1/0435/2966/6724/files/roburogomo.pdf
    • https://cdn.shopify.com/s/files/1/0427/9861/2636/files/psychology_101_lecture_notes.pdf
    • https://cdn.shopify.com/s/files/1/0450/3722/4094/files/budujokipa.pdf
    • https://cdn.shopify.com/s/files/1/0433/3161/6923/files/fozubejed.pdf
    • https://cdn.shopify.com/s/files/1/0451/3693/7125/files/linked_list_in_python.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fe7.bin
af755c4a62506181ef70d1454b454fe93444557043a1eaf22bac73c9a181044c
pdf-font-stream PDF embedded font (sfnt) at offset 0x5FE7 5532 bytes
font_01_sfnt_off000072ad.bin
683d3ebe64dbef0aa89059b7033443ae5a3f1e90bb9dcbf8b5b0cf65404bcb93
pdf-font-stream PDF embedded font (sfnt) at offset 0x72AD 14028 bytes