Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb0ebbb558b13c8f…

MALICIOUS

PDF

42.7 KB Created: 2020-08-23 19:33:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3d93dbbdc4e92fdec0266377f79951dd SHA-1: a04d97b3249a0590f2a829a687a448a934ad4e4a SHA-256: fb0ebbb558b13c8f5ad483599a288ccee147129257bc5a0539cba745bfda0f8e
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, indicating a phishing or malware distribution attempt. The heuristic 'SE_MFA_LURE' suggests the content is designed to harvest credentials or session tokens by impersonating an MFA prompt. The primary malicious URL identified is https://ttraff.ru/pify?keyword=cisco+anyconnect+client++windows+7, which is likely used to redirect the user to a malicious site.

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.ru/pify?keyword=cisco+anyconnect+client++windows+7
    • http://files.strathroyvocalfederation.com/uploads/1/3/2/3/132302768/guvowadasuzevefuw.pdf
    • https://cdn.shopify.com/s/files/1/0434/2480/9116/files/binary_options_candlestick_patterns.pdf
    • https://cdn.shopify.com/s/files/1/0431/8537/3333/files/carrier_air_conditioning_control_manual.pdf
    • https://cdn.shopify.com/s/files/1/0427/4572/5094/files/dubelakidifosilujaj.pdf
    • https://cdn.shopify.com/s/files/1/0428/8482/5247/files/timiniromus.pdf
    • https://cdn.shopify.com/s/files/1/0432/7748/4196/files/christmas_carols_guitar_chords.pdf
    • https://cdn.shopify.com/s/files/1/0430/5548/0981/files/diablo_2_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/0161/8327/files/inverter_welding_machine_circuit.pdf
    • https://cdn.shopify.com/s/files/1/0428/0451/0887/files/baxuvubezigekigig.pdf
    • https://cdn.shopify.com/s/files/1/0433/5632/3995/files/tizivudupifegawixis.pdf
    • https://cdn.shopify.com/s/files/1/0435/5381/6728/files/tijumeniga.pdf
    • https://cdn.shopify.com/s/files/1/0434/3513/1046/files/82691061704.pdf
    • https://cdn.shopify.com/s/files/1/0435/4021/8015/files/whatsapp_gb_for_my_pc.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99231100330.pdf
    • https://cdn.shopify.com/s/files/1/0430/1442/2687/files/shrimad_bhagavad_gita_in_bengali_free_download.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_off000067c9.bin
c7403d09155401acf7351bda2d8a155ccbbf49a1bb39f01efc80f40cccf38052
pdf-font-stream PDF embedded font (sfnt) at offset 0x67C9 5016 bytes
font_01_sfnt_off00007906.bin
82b14708759cd52e4ef1369ca8d7ccaf1cc6590c0e0195df97bb855c0ec5d946
pdf-font-stream PDF embedded font (sfnt) at offset 0x7906 10752 bytes