Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7f55e8948dea60f…

MALICIOUS

PDF

106.4 KB Created: 2020-08-14 20:51:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f0b5ae0633996002860aeb503efcb449 SHA-1: 4d8d5a7475ac282001e35ec99964b10c6e8f1d41 SHA-256: f7f55e8948dea60f44c3c54d25d10bb315932fba12f67fe6899c151e3ea297a7
162 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a malicious redirector and part of a link farm, designed to lure users with advance-fee scam language. The document body, though partially corrupted, contains text referencing an 'auditors report' and includes a URL that is flagged as a malicious redirector. This suggests the document's primary purpose is to trick the user into clicking the malicious link, likely leading to further stages of an advance-fee fraud scheme.

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=auditors+report+of+infosys+2017
    • http://sulediniz.ohmygift.co.nz/uploads/1/3/1/3/131384260/3218933.pdf
    • http://files.laurasblingz-n-thingz.com/uploads/1/3/0/7/130738562/gadapomobagukax.pdf
    • https://cdn.shopify.com/s/files/1/0447/5571/4199/files/author_s_purpose_activity_2_answer_key.pdf
    • https://cdn.shopify.com/s/files/1/0439/2694/5947/files/verizon_fios_tv_channel_lineup_2015.pdf
    • https://cdn.shopify.com/s/files/1/0431/8419/3697/files/jodazuvirimutaziv.pdf
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/26327867574.pdf
    • https://cdn.shopify.com/s/files/1/0434/2225/3208/files/modern_arboriculture.pdf
    • https://cdn.shopify.com/s/files/1/0437/5488/1185/files/vani_rani_tamilo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5119/6315/files/barcelona_aerobus_map.pdf
    • https://cdn.shopify.com/s/files/1/0429/5501/4298/files/nowofejaluwovube.pdf
    • https://cdn.shopify.com/s/files/1/0438/1625/5650/files/kaweratewavezi.pdf
    • https://cdn.shopify.com/s/files/1/0438/0740/8290/files/26556394327.pdf
    • https://cdn.shopify.com/s/files/1/0434/3519/6568/files/5288361827.pdf
    • https://cdn.shopify.com/s/files/1/0434/1586/3452/files/gurato.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_off0001434c.bin
776cd1ac0a57e83ee299593cb54e2e5c5886ff08d48f445439fb7abd683e0e32
pdf-font-stream PDF embedded font (sfnt) at offset 0x1434C 5292 bytes
font_01_sfnt_off00015577.bin
f13ce5c83566e23dccc29673913479ec71b07074af95098fc7440af04e0f1163
pdf-font-stream PDF embedded font (sfnt) at offset 0x15577 15008 bytes
font_02_sfnt_off000184bf.bin
c41fc46809d2260d2d1a821cef6bb00dae560fdbad380da94a93f29d012df54e
pdf-font-stream PDF embedded font (sfnt) at offset 0x184BF 16164 bytes