Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f5425649ec99548…

MALICIOUS

PDF

61.1 KB Created: 2020-08-16 16:31:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ae3277788f6ee63ce0b0bf8195029e2 SHA-1: 4dd6ecb443d780914b3b3e99cfe76d66162c4236 SHA-256: 7f5425649ec995487f7f3f6fc405cd1195fe7a0bbd4c3cb8de46f13163afa33a
168 Risk Score

Malware Insights

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

The PDF contains a lure for an 'Aadhar card pdf pass' and includes a call-to-action button. It links to a redirector URL, 'https://ttraff.cc/pify?keyword=aadhar+card+pdf+pass', which is flagged as malicious. The document also contains a large number of links to external PDFs, many hosted on cdn.shopify.com, suggesting a link farm for SEO poisoning or distribution. The presence of a password lure indicates an attempt to bypass gateway security.

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=aadhar+card+pdf+pass
    • http://files.mauiphilbaptist.org/uploads/1/3/0/8/130813922/708cd5a56d3a703.pdf
    • http://files.acuddleabovepc.com/uploads/1/3/1/4/131454165/jejunib.pdf
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/merilujozukajafepoj.pdf
    • https://cdn.shopify.com/s/files/1/0434/3224/7445/files/vatuzotikojadabilate.pdf
    • https://cdn.shopify.com/s/files/1/0435/1819/7912/files/neluregazixawosanif.pdf
    • https://cdn.shopify.com/s/files/1/0455/6003/7541/files/absalom_and_achitophel_theme.pdf
    • https://cdn.shopify.com/s/files/1/0436/3550/7358/files/antinomie_dfinition.pdf
    • https://cdn.shopify.com/s/files/1/0430/7510/9013/files/remobedutagilese.pdf
    • https://cdn.shopify.com/s/files/1/0432/6785/0390/files/16162756496.pdf
    • https://cdn.shopify.com/s/files/1/0434/0069/1868/files/40237120021.pdf
    • https://cdn.shopify.com/s/files/1/0433/5733/9813/files/perkins_diesel_parts.pdf
    • https://cdn.shopify.com/s/files/1/0429/3161/7945/files/roforogojasotifenel.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_off00009c83.bin
9232782788feab499a70200363f688ee39ffa0a1c3726a005069bce8874e4009
pdf-font-stream PDF embedded font (sfnt) at offset 0x9C83 5200 bytes
font_01_sfnt_off0000ae26.bin
a1664b610eb509db89d9796f8d0461f74cce9c27aaa9c5f480dab3973106c8c8
pdf-font-stream PDF embedded font (sfnt) at offset 0xAE26 10516 bytes
font_02_sfnt_off0000d202.bin
6e3fbd491d8b71441998836ddca0d0c102716a221ea14f8143929167ad9a79b3
pdf-font-stream PDF embedded font (sfnt) at offset 0xD202 16164 bytes