Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e33bec6976e7160…

MALICIOUS

PDF

44.1 KB Created: 2020-08-10 09:54:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5097a244cfe0cdccc995c28c5c60b91e SHA-1: ff5a7e32b5ee4d9a6fd3dfa182364842f513c08a SHA-256: 1e33bec6976e71607724cef71e907955f3833767f8e8f5113a2be3e48511c1c7
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link to 'ttraff.com' which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to a 'Brisbane flood map pdf' and the URL itself, suggesting a lure to a malicious site. The presence of numerous external PDF links also indicates a link farm, a common tactic for SEO poisoning or distributing malicious content. The heuristic 'SE_CALLBACK_LURE' further suggests a phishing or scam context.

Heuristics 4

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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=brisbane+flood+map+pdf
    • http://files.theskinthatburns.com/uploads/1/3/1/1/131164534/f66e7e2f6bf.pdf
    • http://wosabekam.jessicakinziehunterplatt.com/uploads/1/3/1/3/131379833/nagorowiweluxuwi.pdf
    • http://files.nwraincreations.com/uploads/1/3/1/8/131856347/bojevazas.pdf
    • http://files.bigmikeroadshow.com/uploads/1/3/2/3/132303083/872739848.pdf
    • http://files.ceramicnano.net/uploads/1/3/2/6/132681062/vemune.pdf
    • https://cdn.shopify.com/s/files/1/0431/4251/2802/files/bearing_number_and_size_chart.pdf
    • https://cdn.shopify.com/s/files/1/0427/9900/5863/files/how_to_set_up_act_for_ffxiv.pdf
    • https://cdn.shopify.com/s/files/1/0431/5791/3762/files/nasonomiwoganunasimabogob.pdf
    • https://cdn.shopify.com/s/files/1/0431/3035/5866/files/96648766206.pdf
    • https://cdn.shopify.com/s/files/1/0434/6744/0290/files/nofikapubipulipomipezuwit.pdf
    • https://cdn.shopify.com/s/files/1/0434/1946/7943/files/acute_myeloid_leukemia_thesis.pdf
    • https://cdn.shopify.com/s/files/1/0430/3152/7575/files/kadowarefidozob.pdf
    • https://cdn.shopify.com/s/files/1/0439/4729/4875/files/bedadatepozupena.pdf
    • https://cdn.shopify.com/s/files/1/0431/2524/4053/files/rapozebafonu.pdf
    • https://cdn.shopify.com/s/files/1/0452/5421/3792/files/49451399243.pdf
    • https://cdn.shopify.com/s/files/1/0429/8942/0695/files/bo_staff_training_for_beginners.pdf
    • https://cdn.shopify.com/s/files/1/0434/0062/6341/files/14206394844.pdf
    • https://cdn.shopify.com/s/files/1/0430/0092/2261/files/luralipelogibemaxa.pdf
    • https://cdn.shopify.com/s/files/1/0433/4472/4133/files/boxedufezokobivoj.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_off00006eed.bin
600a8f377dabbb7ff6c7499c44074b6e486bbfabda71807c1fbf64e052396b2d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6EED 5376 bytes
font_01_sfnt_off00008116.bin
09ae529f37e4ab232f19761accef27af753bd9d6fd8ac263b5f3aca6a1074b1a
pdf-font-stream PDF embedded font (sfnt) at offset 0x8116 9932 bytes