Malicious PDF — malware analysis report

Static analysis result for SHA-256 e54c0478e38599a3…

MALICIOUS

PDF

41.7 KB Created: 2020-08-06 07:57:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7eced53bb1379737d1c6949b98f8587e SHA-1: b15cb924e3f35a5066540d85235f12d0db73de17 SHA-256: e54c0478e38599a3c5af59292212497b0f0c16b0f71c70cd088a109c8d92bab2
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, https://ttraff.cc/pify?keyword=means+building+construction+cost+data+pdf, points to a known malicious redirector. The primary purpose appears to be directing users to malicious content through this extensive link network. No scripts were extracted from this sample.

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=means+building+construction+cost+data+pdf
    • http://files.cathyxwu.com/uploads/1/3/0/8/130873872/f92cf7ae.pdf
    • http://files.suepickford.net/uploads/1/3/2/7/132741348/duxozurewos-pilixuji-metosirosin-woteti.pdf
    • http://files.stingrayepoxyworks.com/uploads/1/3/0/8/130874587/7872497.pdf
    • http://files.fusionpipeexperts.com/uploads/1/3/0/9/130969497/kuvetakas.pdf
    • http://files.joybennett.com/uploads/1/3/0/7/130738562/xezofupa_zurewapobapedat_bakusub.pdf
    • https://cdn.shopify.com/s/files/1/0438/1619/0112/files/15044480051.pdf
    • https://cdn.shopify.com/s/files/1/0435/5473/4241/files/47411190917.pdf
    • https://cdn.shopify.com/s/files/1/0429/6540/1753/files/57018640631.pdf
    • https://cdn.shopify.com/s/files/1/0435/1731/3176/files/busavorizupu.pdf
    • https://cdn.shopify.com/s/files/1/0435/3009/2712/files/pokerogejas.pdf
    • https://cdn.shopify.com/s/files/1/0430/3601/6802/files/wibekoparadukuvubifip.pdf
    • https://cdn.shopify.com/s/files/1/0440/7253/4166/files/anexar_no_sei.pdf
    • https://cdn.shopify.com/s/files/1/0429/5114/7676/files/99614828282.pdf
    • https://cdn.shopify.com/s/files/1/0435/4523/1515/files/41941453276.pdf
    • https://cdn.shopify.com/s/files/1/0436/1525/6738/files/l._a._dragnet.pdf
    • https://cdn.shopify.com/s/files/1/0432/5736/4638/files/7842214535.pdf
    • https://cdn.shopify.com/s/files/1/0430/2451/5229/files/dewetakewuluzinimejo.pdf
    • https://cdn.shopify.com/s/files/1/0433/9639/9265/files/kadovefefusimire.pdf
    • https://cdn.shopify.com/s/files/1/0433/7719/7221/files/wofejexiwererajutanina.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_off0000544c.bin
fadd86c5345b12042c06150f3a606c58bb45ba97fdc64880c0a68abedc270eeb
pdf-font-stream PDF embedded font (sfnt) at offset 0x544C 5348 bytes
font_01_sfnt_off0000667f.bin
502838175859aa1b92ba4899a65e3d09be84352e1b08bc2b76b3c214ad03769e
pdf-font-stream PDF embedded font (sfnt) at offset 0x667F 10712 bytes
font_02_sfnt_off00008b16.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B16 4324 bytes