Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ece518d7ec48eb7…

MALICIOUS

PDF

119.7 KB Created: 2020-08-01 21:17:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2443e26974d0cc200f76c045856faa27 SHA-1: d820134ab1365269286c7dfa3e9d87ad5ded6b34 SHA-256: 8ece518d7ec48eb7ef9539e26f6909ad2e8e4e7020aa543b6d04d5c3d2d37b61
162 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating a malicious redirector link and a link farm, designed to lead users to external content. The 'SE_ADVANCE_FEE_SCAM_LURE' heuristic strongly suggests the document's purpose is to trick users into a fraudulent scheme. The primary malicious URL identified is https://ttraff.cc/pify?keyword=heard+em+say+lyrics, which is likely part of the scam's redirection chain.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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=heard+em+say+lyrics
    • http://files.soundwavesak.com/uploads/1/3/0/7/130775195/derukasatejufesuw.pdf
    • http://files.rioricohistoricalsociety.org/uploads/1/3/1/3/131397981/vagabipi.pdf
    • http://files.sascwa.org/uploads/1/3/1/4/131452876/6923610.pdf
    • http://files.medusagoddesshair.com/uploads/1/3/1/4/131437926/1dafe6241b.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12410546401.pdf
    • https://cdn.shopify.com/s/files/1/0431/2619/4342/files/rizuvogokibuvufugodikalo.pdf
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/78463156276.pdf
    • https://cdn.shopify.com/s/files/1/0429/7303/6697/files/it_project_manager_resume.pdf
    • https://cdn.shopify.com/s/files/1/0432/7063/5678/files/pasawezerazuboza.pdf
    • https://cdn.shopify.com/s/files/1/0436/2836/3939/files/kerurajuxu.pdf
    • https://cdn.shopify.com/s/files/1/0433/2063/9646/files/imi_jericho_941_r.pdf
    • https://cdn.shopify.com/s/files/1/0429/5639/0551/files/negipebidaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83142526711.pdf
    • https://cdn.shopify.com/s/files/1/0435/8668/3037/files/40288894711.pdf
    • https://cdn.shopify.com/s/files/1/0430/3834/3322/files/56802291495.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_off00017836.bin
227304acf975ace3c2db03527507b1116fe4e059a8cbe68e24cbf3f6c0ff07e0
pdf-font-stream PDF embedded font (sfnt) at offset 0x17836 5148 bytes
font_01_sfnt_off000189a7.bin
5854d8a5ac3ee566977d19049810d1aa9242835853605a5bd46e10d9f650994f
pdf-font-stream PDF embedded font (sfnt) at offset 0x189A7 16312 bytes
font_02_sfnt_off0001bc7d.bin
184efd0e138a9418359f6897f9ac56b5cd93cafbd57abf30711ac2aee7e18832
pdf-font-stream PDF embedded font (sfnt) at offset 0x1BC7D 16120 bytes