Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8d9a1a24f78c29c…

MALICIOUS

PDF

44.4 KB Created: 2020-08-09 00:15:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c576579d59f1a955cdff7415687fefea SHA-1: 24996b09b55818123369ce94f3ea4d9bda7fdc49 SHA-256: c8d9a1a24f78c29c49aaafa5ab4aa54e03c2c44794420c634461af3065eaeecd
160 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one pointing to a known malicious redirector. The document body and heuristic firings indicate a lure for an advance-fee scam, likely attempting to trick users into visiting the malicious URL. The presence of numerous external PDF links suggests a link farm strategy to improve search engine ranking for malicious content.

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.com/pify?keyword=suda+awas+yojana+form+pdf
    • http://files.redcloudindianarts.com/uploads/1/3/0/7/130738998/7546656.pdf
    • http://files.deborahklinger.com/uploads/1/3/2/7/132712508/9486109.pdf
    • http://files.mtandd.com/uploads/1/3/2/7/132740408/puduvolufixamexogoso.pdf
    • https://cdn.shopify.com/s/files/1/0434/1907/4712/files/mysql_drop_index.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/test_1879eb6a-339e-4d45-a409-571cd94a4742.pdf?v=1594212285
    • https://cdn.shopify.com/s/files/1/0435/3146/8951/files/74174593371.pdf
    • https://cdn.shopify.com/s/files/1/0440/1600/9374/files/webadawinipiw.pdf
    • https://cdn.shopify.com/s/files/1/0440/9065/4885/files/71134295790.pdf
    • https://cdn.shopify.com/s/files/1/0436/8993/5002/files/engineering_circuit_analysis_8th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0432/9055/8622/files/safasipegekujewaxikin.pdf
    • https://cdn.shopify.com/s/files/1/0429/9807/1449/files/37425688429.pdf
    • https://cdn.shopify.com/s/files/1/0432/6152/6166/files/4487746459.pdf
    • https://cdn.shopify.com/s/files/1/0434/0740/9308/files/mob_skins_for_minecraft_pe.pdf
    • https://cdn.shopify.com/s/files/1/0433/5524/2655/files/business_intelligence_wiley.pdf
    • https://cdn.shopify.com/s/files/1/0438/3634/2434/files/33407624817.pdf
    • https://cdn.shopify.com/s/files/1/0433/7015/2088/files/nufigewudipaxelufujesun.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_off00006e9b.bin
dada16f84782bb50273954e6c168fbedd80cf46b33d238c7697961e4debaeb72
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E9B 5528 bytes
font_01_sfnt_off0000816e.bin
7f175305b9f194fa937f1e76c88d6ee347343a8b967b431e38ec40d5fa2416f5
pdf-font-stream PDF embedded font (sfnt) at offset 0x816E 10456 bytes