Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ef0097514bf5ba9…

MALICIOUS

PDF

42.4 KB Created: 2020-08-14 22:53:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 604bf9171ef789fd8814aeb66b9e3586 SHA-1: 6dc6a54184b197c044a0ce8146be6252c9a070a7 SHA-256: 2ef0097514bf5ba9c7b7c643a73bad9dd23c02cd66c119042de4bdda8739112b
160 Risk Score

Malware Insights

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

The PDF contains a lure for cracked software, directing users to a malicious redirector. It also hosts a large number of external PDF links, likely for SEO manipulation. The presence of a remote support tool lure suggests a potential for further compromise or credential harvesting.

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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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=autocad+plant+3d+free++full+crack
    • http://files.jacobmarkstaffin.com/uploads/1/3/1/4/131437330/robipono_meriwexod.pdf
    • http://files.stephartist.com/uploads/1/3/1/3/131379049/7468923.pdf
    • http://files.harvestwineoutfitters.com/uploads/1/3/1/4/131407918/290e00.pdf
    • http://files.tuxedowarehouse.net/uploads/1/3/2/7/132711954/59097331fcce4.pdf
    • https://cdn.shopify.com/s/files/1/0428/1879/7724/files/didogebagoziniboxemuxup.pdf
    • https://cdn.shopify.com/s/files/1/0431/6954/6395/files/pitobipawevagirimoxeja.pdf
    • https://cdn.shopify.com/s/files/1/0435/6086/1845/files/munos.pdf
    • https://cdn.shopify.com/s/files/1/0432/3534/4539/files/6th_grade_math_common_core_standards.pdf
    • https://cdn.shopify.com/s/files/1/0428/7594/5126/files/bunoz.pdf
    • https://cdn.shopify.com/s/files/1/0434/0934/2621/files/18835596942.pdf
    • https://cdn.shopify.com/s/files/1/0438/8929/5515/files/21777534091.pdf
    • https://cdn.shopify.com/s/files/1/0437/7500/0730/files/chlamydia_adalah.pdf
    • https://cdn.shopify.com/s/files/1/0430/4060/4314/files/zunalola.pdf
    • https://cdn.shopify.com/s/files/1/0433/9413/8277/files/r_multivariate_normal.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_off00006653.bin
f66442d56e5fce5c6f1fa0fe4349ca5f8fcbaf6e01a48dc21d5d1c74e4adb185		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6653 5188 bytes
font_01_sfnt_off00007805.bin
e3a53f1280138c2aaf908eb6f65aba72359c020d9b08b27b5aad7efd7447d40e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7805 10680 bytes

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