Malicious PDF — malware analysis report

Static analysis result for SHA-256 40d67fab25522a27…

MALICIOUS

PDF

51.4 KB Created: 2020-07-23 10:30:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b950856a05ac49389d47d1a5df7fdd30 SHA-1: f008b34fdd1f8bb14223747e2f63331ec57badb6 SHA-256: 40d67fab25522a274397a31b9a61d4ca1cf8decf9a1b92742affbd1cca5e816f
160 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, suggests a lure related to a 'committee report' and 'rural employee', aligning with advance-fee scam tactics. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to obscure the ultimate destination.

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=gds+committee+report+rural+employee
    • http://files.appletreecontractors.com/uploads/1/3/1/6/131607712/9709263.pdf
    • http://files.kp-snaps.com/uploads/1/3/2/7/132711954/4afe5e2731b.pdf
    • http://files.healthnotwealth.co.uk/uploads/1/3/0/8/130874495/8ea4984.pdf
    • http://files.lindsaylusby.com/uploads/1/3/0/7/130740513/tobiwejimoxitezunelo.pdf
    • http://files.lindsaylusby.com/uploads/1/3/0/7/130740513/t
    • https://cdn.shopify.com/s/files/1/0432/0509/9675/files/fafumezuzavefadi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8549/6469/files/sabudofurabugisogarafowu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7573/9553/files/tagisigopaboletuxek.pdf
    • https://cdn.shopify.com/s/files/1/0429/2182/0319/files/35538148559.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54101174921.pdf
    • https://cdn.shopify.com/s/files/1/0431/3251/8554/files/55583601071.pdf
    • https://cdn.shopify.com/s/files/1/0431/4752/6305/files/xiwidokakovidasaritox.pdf
    • https://cdn.shopify.com/s/files/1/0431/7049/6672/files/60604075098.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xidab.pdf
    • https://cdn.shopify.com/s/files/1/0430/4509/3533/files/jekukamovide.pdf
    • https://cdn.shopify.com/s/files/1/0435/7079/0558/files/puratogafule.pdf
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/pujevonotoxumaxakezemoti.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_off000075ed.bin
59d3345af47080002a647dcba9f3c64aa87b355d914004e8c11b3a2a20f64d49
pdf-font-stream PDF embedded font (sfnt) at offset 0x75ED 5128 bytes
font_01_sfnt_off0000876b.bin
1f716220921988dcb58825ec841987c4be3c8735faed8720d3a947fa043b3810
pdf-font-stream PDF embedded font (sfnt) at offset 0x876B 10412 bytes
font_02_sfnt_off0000aabb.bin
541fa2b6826b0add99b7d5a173ef1e6a5567607b5192f75b810eb17d6a563501
pdf-font-stream PDF embedded font (sfnt) at offset 0xAABB 16204 bytes