Malicious PDF — malware analysis report

Static analysis result for SHA-256 305114febaafe372…

MALICIOUS

PDF

127.7 KB Created: 2020-08-11 23:52:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: cd6c4c8b94fe7c7af5dbbda04e6798b2 SHA-1: 0a25f6370fc9133941bc7583e5a4af68cbf4e6ff SHA-256: 305114febaafe3727f8112c3032bab23b1e88c38df16b5864ee3665c8a9bfa18
160 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. Additionally, PDF_SEO_LINK_FARM suggests a large number of outbound links, and SE_ADVANCE_FEE_SCAM_LURE points to a scam-based lure. The document body, though partially corrupted, contains text related to 'electrical breaker types pdf' and a URL that aligns with the malicious redirector finding. The primary malicious IOC is the redirector URL.

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=electrical+breaker+types+pdf
    • http://files.creativeillusions19.com/uploads/1/3/0/8/130873715/ferividadututozabi.pdf
    • http://files.lclutheran.org/uploads/1/3/2/8/132814791/jopevotozefil-fawozowujevo-turireg-dilap.pdf
    • http://files.michaelabandostudio.com/uploads/1/3/2/8/132814096/1467788.pdf
    • http://sofid.nicknubz.com/uploads/1/3/0/7/130776326/berinasosamonosuruf.pdf
    • https://cdn.shopify.com/s/files/1/0434/0455/8488/files/change_keyboard_language.pdf
    • https://cdn.shopify.com/s/files/1/0429/6769/5509/files/cartesian_diver_experiment.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/84511803825.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/editable_autopsy_report.pdf
    • https://cdn.shopify.com/s/files/1/0433/5245/7369/files/aws_associate_certification_dumps.pdf
    • https://cdn.shopify.com/s/files/1/0432/4392/9757/files/bharat_gas_form.pdf
    • https://cdn.shopify.com/s/files/1/0429/6802/3194/files/94278803048.pdf
    • https://cdn.shopify.com/s/files/1/0433/4832/8603/files/96828107433.pdf
    • https://cdn.shopify.com/s/files/1/0432/6470/4662/files/19402062669.pdf
    • https://cdn.shopify.com/s/files/1/0437/7785/1550/files/david_deangelo_double_your_dating.pdf
    • https://cdn.shopify.com/s/files/1/0440/7951/3752/files/fevevasajuxef.pdf
    • https://cdn.shopify.com/s/files/1/0430/4447/0945/files/supozavejavobebo.pdf
    • https://cdn.shopify.com/s/files/1/0431/1882/1530/files/ielts_band_score_7.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_off000194db.bin
e6122eb297644ee43b5fcb8e85e396b31f648af48b1baccc219ff37f1138c739		 pdf-font-stream PDF embedded font (sfnt) at offset 0x194DB 5412 bytes
font_01_sfnt_off0001a751.bin
4d5c2ed49a730f00bf75c3cfef53fde41afcacad0d4ecb16d2eb67e1fedf8c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1A751 16936 bytes
font_02_sfnt_off0001dbae.bin
ae7f93972994935718ba4ca09ad89dad7d5debdcce6018e7b29f2394b45d7aae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1DBAE 16144 bytes

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