Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9a0823d1f8698fe…

MALICIOUS

PDF

51.2 KB Created: 2020-07-29 19:11:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d2d3d2c25a5446175f3581ee90b361cc SHA-1: 267c136f134f2e3200d51ffa763373c2375d865e SHA-256: a9a0823d1f8698fe36ee6c0d14211f4ceb618f789a575b7a41fbec2ac8f72544
160 Risk Score

Malware Insights

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

The PDF contains numerous links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to negotiation or legal documents, aligning with advance-fee scam tactics. The presence of a link farm further indicates an attempt to distribute malicious content or engage in SEO abuse.

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=batna+in+negotiation+pdf
    • http://files.aramgershuni.com/uploads/1/3/1/0/131071289/8864926.pdf
    • http://files.risingravenband.com/uploads/1/3/1/3/131384018/buvab.pdf
    • http://files.dc3cares.org/uploads/1/3/2/6/132695749/47fa023c4.pdf
    • http://files.thesquirrelloversclub.com/uploads/1/3/0/8/130874075/8404938.pdf
    • https://cdn.shopify.com/s/files/1/0433/2634/1278/files/saxewazuleraxusim.pdf
    • https://cdn.shopify.com/s/files/1/0433/0133/9304/files/nerebobisevejodinu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gizuvesadumewagetikuxumut.pdf
    • https://cdn.shopify.com/s/files/1/0430/8333/3786/files/18863723818.pdf
    • https://cdn.shopify.com/s/files/1/0427/6387/8566/files/kalobezisedexexurixuno.pdf
    • https://cdn.shopify.com/s/files/1/0435/8681/4109/files/zofabevomu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34007074416.pdf
    • https://cdn.shopify.com/s/files/1/0435/7105/2707/files/33708222589.pdf
    • https://cdn.shopify.com/s/files/1/0432/8646/2620/files/fobedatozinukejamoxekora.pdf
    • https://cdn.shopify.com/s/files/1/0437/0163/3177/files/sobukeli.pdf
    • https://cdn.shopify.com/s/files/1/0432/8059/7152/files/bixuvil.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rerotapok.pdf
    • https://cdn.shopify.com/s/files/1/0427/8334/2748/files/lazowedoxakodujimovopajod.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_off00007c5b.bin
04b2a22b6da4b5ed769fad359c026547790890fb473754a19ff556ac42f79858
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C5B 3904 bytes
font_01_sfnt_off00008a32.bin
742856e28652758243fade222bef269fa25d58db5e865fb1c735ac7dab05e5d0
pdf-font-stream PDF embedded font (sfnt) at offset 0x8A32 4740 bytes
font_02_sfnt_off00009a64.bin
96f14d67643c8329dd5f1c10bb263aef066327ed0a81d38a7e6144392f73c73a
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A64 10700 bytes