Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4e365cbb347ec2f…

MALICIOUS

PDF

42.7 KB Created: 2020-08-02 21:19:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ae7938058213c80f7efa689c18db72d SHA-1: 89d56fa89724ff9a14e411912b4ff973c1a5f791 SHA-256: a4e365cbb347ec2fb2a959d6ab534f449c086eb805414a9dc08c495dbf8f1762
160 Risk Score

Malware Insights

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

The PDF document contains a lure for FedEx shipment authorization, which is a common tactic for credential harvesting. It embeds numerous links, including one to a known malicious redirector at 'ttraff.com'. The heuristic 'SE_MFA_LURE' further indicates that the document is designed to trick users into providing sensitive information, likely for MFA or one-time code harvesting. The presence of a malicious redirector URL strongly suggests the intent to lead the user to a phishing page.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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=fedex+shipment+release+authorization+form
    • http://files.kobanuniverse.net/uploads/1/3/1/4/131438268/pekezaxisodok_sujunasewowazud_fofumebonekawu.pdf
    • http://files.valleyofthedunes.com/uploads/1/3/1/6/131607029/f69220b930.pdf
    • http://files.yurrugar.com/uploads/1/3/1/4/131453132/binikidapo_putavaf_pimititipidijun.pdf
    • https://cdn.shopify.com/s/files/1/0439/0099/3691/files/92558924728.pdf
    • https://cdn.shopify.com/s/files/1/0431/9058/3464/files/tavatubudupumak.pdf
    • https://cdn.shopify.com/s/files/1/0434/5970/7037/files/rijeniwonapozozuw.pdf
    • https://cdn.shopify.com/s/files/1/0429/7146/3831/files/95463008471.pdf
    • https://cdn.shopify.com/s/files/1/0440/8741/0840/files/89276624510.pdf
    • https://cdn.shopify.com/s/files/1/0433/7998/2492/files/72_buick_skylark.pdf
    • https://cdn.shopify.com/s/files/1/0439/8641/9870/files/53815136883.pdf
    • https://cdn.shopify.com/s/files/1/0432/7935/1976/files/52215373030.pdf
    • https://cdn.shopify.com/s/files/1/0429/2316/3801/files/wamupiwowuwuwutu.pdf
    • https://cdn.shopify.com/s/files/1/0440/0565/4678/files/98078952429.pdf
    • https://cdn.shopify.com/s/files/1/0431/0489/5143/files/23465424049.pdf
    • https://cdn.shopify.com/s/files/1/0438/8664/1304/files/vufeborixedatemozag.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_off00005c34.bin
1afff966c3fbde518e9ea0105f59ea330402b5dbda3f538f6c9472713a030b25
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C34 5236 bytes
font_01_sfnt_off00006de6.bin
fb499367c345bf9b8cd3ddcea504eff785bfbb29d1b4ebffc1089e7ed91f2f51
pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE6 9980 bytes
font_02_sfnt_off00008ff0.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8FF0 4324 bytes