Malicious PDF — malware analysis report

Static analysis result for SHA-256 49bed8c8a3f2ed1e…

MALICIOUS

PDF

38.8 KB Created: 2020-08-20 18:39:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f7c5a8180baaebdefa17dc388b811df SHA-1: 948000f782ac24a41c0ec746139aabcd696c0d14 SHA-256: 49bed8c8a3f2ed1e372e741287efba6ccadf52ad84cd29f8323c78cd38820c93
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=line+messaging+app'. The document body, though heavily obfuscated, also contains this URL and text suggesting a lure related to the 'Line messaging app'. The presence of a PDF link farm heuristic further indicates malicious intent to drive traffic to external sites. The primary attack pattern involves tricking users into clicking a malicious link disguised as a legitimate application prompt.

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=line+messaging+app
    • http://finaxan.gracestringfellow.com/uploads/1/3/0/7/130739385/8248358.pdf
    • https://cdn.shopify.com/s/files/1/0433/8611/0110/files/17911091021.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5671/files/tipaliwitelu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/surorut.pdf
    • https://cdn.shopify.com/s/files/1/0428/5494/0828/files/macbeth_plot.pdf
    • https://cdn.shopify.com/s/files/1/0427/9864/5404/files/reaktionsgleichung_aufstellen_bungen.pdf
    • https://cdn.shopify.com/s/files/1/0431/3022/4794/files/zuleduzefip.pdf
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/29797895106.pdf
    • https://cdn.shopify.com/s/files/1/0435/4605/0714/files/acls_guidelines_stroke.pdf
    • https://cdn.shopify.com/s/files/1/0429/4891/9450/files/34381036790.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_off00005b7e.bin
a2cd5ab17249a94942293eff1caca592bb364f887262b512ffe935670e086565		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B7E 4952 bytes
font_01_sfnt_off00006c42.bin
3cb748c48b061fddb87719967404a7b8925a006e2850826fc225408676e33fa2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C42 10316 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.