Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b9eac1cb057078f…

MALICIOUS

PDF

57.5 KB Created: 2020-07-31 06:42:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83a957ac8d4182e410ce436318dd2822 SHA-1: 29dfa236d5098d1216fabc054b0dd2f2c1f44ec9 SHA-256: 2b9eac1cb057078f3f7893983950223c591ecb7a2e4091cc8943712e1c25fcc2
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 indicating a malicious redirector link to 'ttraff.com'. Another critical heuristic identified a PDF link farm, with many links pointing to shopify.com domains. The document body, though heavily obfuscated, appears to be a lure related to 'Dell poweredge r730 datasheet pdf'. The primary intent seems to be directing users to malicious infrastructure through a deceptive document.

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=dell+poweredge+r730+datasheet+pdf
    • http://files.balqeesline.com/uploads/1/3/0/7/130738883/moziwimexap_fosefed_nunevu.pdf
    • http://files.transformation-travel.com/uploads/1/3/0/7/130776682/3670827.pdf
    • http://files.orchardavepta.org/uploads/1/3/1/4/131452804/9878838.pdf
    • https://cdn.shopify.com/s/files/1/0431/6879/2733/files/89493934826.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rowogumidakedodovejizana.pdf
    • https://cdn.shopify.com/s/files/1/0433/9341/7367/files/63244243066.pdf
    • https://cdn.shopify.com/s/files/1/0431/9356/5342/files/5355025964.pdf
    • https://cdn.shopify.com/s/files/1/0428/7329/0908/files/belatuzoserebekejiluranij.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/8634065836.pdf
    • https://cdn.shopify.com/s/files/1/0432/4930/3720/files/38356159494.pdf
    • https://cdn.shopify.com/s/files/1/0429/3178/1791/files/58487821452.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gamefidijuj.pdf
    • https://cdn.shopify.com/s/files/1/0437/0097/7816/files/rabulukazufuguja.pdf
    • https://cdn.shopify.com/s/files/1/0428/7148/8668/files/35836538977.pdf
    • https://cdn.shopify.com/s/files/1/0429/5095/1066/files/51643677037.pdf
    • https://cdn.shopify.com/s/files/1/0435/5912/5160/files/98217496172.pdf
    • https://cdn.shopify.com/s/files/1/0433/7372/3800/files/kazavexulopaxupiligi.pdf
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/zilizopamituve.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/
    • https://cdn.shopify.com/s/files/1/0428/7329/09

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a132.bin
7add6584b891fdddba9ce13a92e4df0f1377c813c1d5f75dc3269d06c5108751
pdf-font-stream PDF embedded font (sfnt) at offset 0xA132 5412 bytes
font_01_sfnt_off0000b3d1.bin
cd92711dc3eeb40d4cbc2021b5e53ae5b80c291c48600c0d9169a01e46ebf59c
pdf-font-stream PDF embedded font (sfnt) at offset 0xB3D1 10792 bytes