Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee9eda15e9b8e8ce…

MALICIOUS

PDF

51.8 KB Created: 2020-08-08 10:50:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80253e5f14a93288b1716108da28e0bc SHA-1: 4e71d2214fe786d6f1649e8297b265cbf79fbe07 SHA-256: ee9eda15e9b8e8ce712a9f935b9c3032eeada898be050064054f2916aaf5bf54
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector, indicating an attempt to drive traffic to malicious sites. The document body, though heavily obfuscated, contains text related to 'Tcs technical interview questions', suggesting a lure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=tcs+technical+interview+questions+and+answers+for+freshers+pdf, which is linked to a known malicious redirector.

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=tcs+technical+interview+questions+and+answers+for+freshers+pdf
    • http://tubevor.hawkecreations.com/uploads/1/3/2/6/132682076/34b2438.pdf
    • http://files.jeffjacobshpe.com/uploads/1/3/0/7/130738758/jawobugelokij_padaninodur_fakigiser.pdf
    • http://files.nicoleandersonconsulting.com/uploads/1/3/1/4/131437725/6480490.pdf
    • https://cdn.shopify.com/s/files/1/0430/0996/6239/files/kulenadolesasajiv.pdf
    • https://cdn.shopify.com/s/files/1/0435/8917/3411/files/arteria_carotida_anatomia.pdf
    • https://cdn.shopify.com/s/files/1/0447/6190/7351/files/ayers_rock_resort_map.pdf
    • https://cdn.shopify.com/s/files/1/0431/3917/0466/files/65162520327.pdf
    • https://cdn.shopify.com/s/files/1/0434/5420/2013/files/adam_ant_stand_and_deliver.pdf
    • https://cdn.shopify.com/s/files/1/0431/1518/4277/files/kewovunipeluvasejuxapub.pdf
    • https://cdn.shopify.com/s/files/1/0431/1806/7876/files/jekokaxepesom.pdf
    • https://cdn.shopify.com/s/files/1/0433/5193/3078/files/juzoziziput.pdf
    • https://cdn.shopify.com/s/files/1/0431/7996/6628/files/60157322247.pdf
    • https://cdn.shopify.com/s/files/1/0438/8736/2216/files/22404337842.pdf
    • https://cdn.shopify.com/s/files/1/0439/1079/1323/files/45302646869.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48975286879.pdf
    • https://cdn.shopify.com/s/files/1/0432/9812/8036/files/langage_familier_franais.pdf
    • https://cdn.shopify.com/s/files/1/0437/8276/6743/files/vezisododujudalikan.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/48964496615.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_off00008a68.bin
745dd965e54b3e9b9f6c77dbb6d1726b4070b3c91f4889b871ed0880a26a1eed
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A68 5472 bytes
font_01_sfnt_off00009d14.bin
9f47d6d93b25f850360cac9aeb101199cee86c2f1bedbf49ddec980903bff2f2
pdf-font-stream PDF embedded font (sfnt) at offset 0x9D14 10644 bytes