Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1a4189530e0459b…

MALICIOUS

PDF

35.3 KB Created: 2020-08-24 06:32:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2ddd3ef3c16c26c1c91afc221d684706 SHA-1: 72ba6d80c05b040f7ee574dcf7d37eeb43a6d3fa SHA-256: d1a4189530e0459b9592fa3b1fb2db7e15363eb7387553c4c9e4efd39cc9377a
162 Risk Score

Malware Insights

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

This PDF file contains a large number of embedded links, many of which point to potentially malicious redirectors or link farms. The heuristic firings indicate that the document instructs the user to disable security software, a common tactic to bypass defenses. The primary malicious URL identified is https://ttraff.cc/pify?keyword=cabal++full+client, which is likely used to redirect the user to further malicious content. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • 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=cabal++full+client
    • http://files.pjneallaw.com/uploads/1/3/1/4/131483128/xegif.pdf
    • http://files.winninggodsway.com/uploads/1/3/0/7/130775180/karuragotobagesu.pdf
    • http://diguda.mysteryshoppingonlinejob.com/uploads/1/3/1/4/131453598/rawufi.pdf
    • http://files.nundahpetsitter.com/uploads/1/3/0/8/130814187/f311684790c5ce1.pdf
    • http://dedilejo.stpaullevittown.org/uploads/1/3/2/3/132303354/juxekajebase_xejek_fimogijezum.pdf
    • https://cdn.shopify.com/s/files/1/0447/9172/6240/files/hourly_schedule_template.pdf
    • https://cdn.shopify.com/s/files/1/0433/5150/7094/files/31303613571.pdf
    • https://cdn.shopify.com/s/files/1/0429/4659/2924/files/61736232161.pdf
    • https://cdn.shopify.com/s/files/1/0438/9008/1960/files/endometriosis_puerperal.pdf
    • https://cdn.shopify.com/s/files/1/0432/0201/9487/files/mesumarinokibufadam.pdf
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/46313666937.pdf
    • https://cdn.shopify.com/s/files/1/0431/3566/4284/files/inequality_worksheet_7th_grade.pdf
    • https://cdn.shopify.com/s/files/1/0440/1987/5998/files/15115887104.pdf
    • https://cdn.shopify.com/s/files/1/0432/0657/4240/files/91649850870.pdf
    • https://cdn.shopify.com/s/files/1/0429/6415/6575/files/zogizir.pdf
    • https://cdn.shopify.com/s/files/1/0427/5788/2022/files/lisaxujudozigolamesefib.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_off00004e14.bin
2f20d4728013d8fb969bd1703cdb2ef04a88520d6b18073e1de51a53086bd6b1
pdf-font-stream PDF embedded font (sfnt) at offset 0x4E14 4648 bytes
font_01_sfnt_off00005dfb.bin
8e8070a5f07387a318feb55cd885d74f1a5aa4a9ef91a1e295b4fa2527c17598
pdf-font-stream PDF embedded font (sfnt) at offset 0x5DFB 9968 bytes