Malicious PDF — malware analysis report

Static analysis result for SHA-256 f23fecc494bdb2a0…

MALICIOUS

PDF

45.0 KB Created: 2020-08-04 20:00:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0b11677f99581b3f668e9a57a1a07734 SHA-1: 05203681b0f8f2af162dcfc05d8d21aae1a321c4 SHA-256: f23fecc494bdb2a0802aa28a1bb3c265674f0c730ce811fd8e651901e0387adb
128 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, including one to a known malicious redirector at 'ttraff.com'. The document body and heuristics indicate a lure to download a magazine, which likely leads to a malicious payload. The presence of numerous links, many pointing to Shopify domains, suggests a link farm tactic to improve SEO for malicious content.

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.
  • 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.com/pify?keyword=bsc+magazine+march+2020+pdf+download+in+english
    • http://files.canningcomputerrepairs.com.au/uploads/1/3/0/8/130814176/4323761.pdf
    • http://files.suzanneandrewsfunctionalfitness.com/uploads/1/3/2/7/132740892/09303.pdf
    • http://kupuloje.angelahansenart.com/uploads/1/3/0/7/130776542/pemimife.pdf
    • http://files.qrleadershipgroup.com/uploads/1/3/1/1/131164236/9161980.pdf
    • https://cdn.shopify.com/s/files/1/0437/4921/2309/files/25573017959.pdf
    • https://cdn.shopify.com/s/files/1/0428/8312/1319/files/wokuriwomuxut.pdf
    • https://cdn.shopify.com/s/files/1/0436/1791/0941/files/bipuvivilovizu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6169/6925/files/rovetaxod.pdf
    • https://cdn.shopify.com/s/files/1/0431/3504/1702/files/giloxi.pdf
    • https://cdn.shopify.com/s/files/1/0440/5536/3734/files/72278686078.pdf
    • https://cdn.shopify.com/s/files/1/0433/9826/7029/files/spark_plug_cross_reference_chart.pdf
    • https://cdn.shopify.com/s/files/1/0439/0184/5659/files/criti_call_practice_test.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wirokole.pdf
    • https://cdn.shopify.com/s/files/1/0432/7990/9030/files/25876256483.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_off0000617b.bin
73c13b4e8efd819d3a78fa6dabccc0746eafe5afc21496d72db3e6ead2c5856d
pdf-font-stream PDF embedded font (sfnt) at offset 0x617B 5744 bytes
font_01_sfnt_off000074e5.bin
9f5068d21c415deff2445778b9a39e69370f926c0473eae7300a9f81e720de23
pdf-font-stream PDF embedded font (sfnt) at offset 0x74E5 10520 bytes
font_02_sfnt_off0000989f.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x989F 4324 bytes