Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac0c70f1225068c4…

MALICIOUS

PDF

38.2 KB Created: 2020-08-01 10:49:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: abf5b7f73be707bc285f6261df3816c5 SHA-1: 2880c9a06bb0a8d933dc9d8cf5dfe8e85ac48bfc SHA-256: ac0c70f1225068c4dc8e6a774d58d3e4ee18cec2178d01197a78fcc7b4c3633a
160 Risk Score

Malware Insights

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

The PDF contains a link farm and a specific malicious redirector URL, suggesting a phishing or redirection attack. The heuristic 'SE_MFA_LURE' indicates the document's content is designed to trick users into providing sensitive information, such as one-time codes or MFA approvals. The primary malicious URL identified is https://ttraff.com/pify?keyword=hp+deskjet+3050+manual, which is likely used to redirect the user to a credential harvesting 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=hp+deskjet+3050+manual
    • http://files.darrenkaiser.com/uploads/1/3/1/8/131871625/5295677.pdf
    • http://files.michaelblamey.com/uploads/1/3/0/9/130968981/xerogiximenoxu.pdf
    • http://files.awakenthesenses.co.uk/uploads/1/3/0/7/130776164/d399d38.pdf
    • http://files.missionschurchorlando.com/uploads/1/3/1/0/131070859/7432083.pdf
    • https://cdn.shopify.com/s/files/1/0434/0131/4454/files/16621062687.pdf
    • https://cdn.shopify.com/s/files/1/0430/6498/3701/files/97025906230.pdf
    • https://cdn.shopify.com/s/files/1/0433/1172/6750/files/jaloxidulikobad.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21244882445.pdf
    • https://cdn.shopify.com/s/files/1/0430/3772/0733/files/mabibuzim.pdf
    • https://cdn.shopify.com/s/files/1/0428/9301/7247/files/56241429357.pdf
    • https://cdn.shopify.com/s/files/1/0431/0496/0676/files/vuzaxev.pdf
    • https://cdn.shopify.com/s/files/1/0432/7754/9726/files/91058567276.pdf
    • https://cdn.shopify.com/s/files/1/0433/4590/3781/files/xijobakexuwaxefomo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0009/4112/files/xedugutigikakavej.pdf
    • https://cdn.shopify.com/s/files/1/0431/3012/6496/files/79268900275.pdf
    • https://cdn.shopify.com/s/files/1/0432/6352/5026/files/3743594686.pdf
    • https://cdn.shopify.com/s/files/1/0429/3646/7623/files/how_to_make_fake_crack.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000570c.bin
c635402e4de56dc0757c6168439b184734dac4400c187579aa7afb091d0d2160
pdf-font-stream PDF embedded font (sfnt) at offset 0x570C 5540 bytes
font_01_sfnt_off000069dc.bin
71005d38e6263c5e814b53ec08d43a9b512097f232fdd2ea3d4ba5b2c2b740e7
pdf-font-stream PDF embedded font (sfnt) at offset 0x69DC 9984 bytes