Malicious PDF — malware analysis report

Static analysis result for SHA-256 f72bc3ec1f562169…

MALICIOUS

PDF

42.4 KB Created: 2020-08-20 13:24:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 98bfb0835f1c36be57dd0f7d8a1b5dfc SHA-1: 9d3575e63b1ef4bf68b7350b8b0cff479defea8e SHA-256: f72bc3ec1f562169edf9d386840a005be69315fc959da906aa8e1626d4ffaaeb
150 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector link to 'ttraff.com'. This suggests the document is designed to lure users to malicious websites. The presence of a large number of external PDF links, many hosted on Shopify, further supports a link farm or redirection strategy. No scripts were extracted, but the overall structure points to a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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=weathering+with+you+trailer+2
    • http://files.cobilconnect.com/uploads/1/3/0/9/130969853/6ea8d66a.pdf
    • http://wonatulup.gordonandjulia.com/uploads/1/3/0/9/130969465/7240038.pdf
    • https://cdn.shopify.com/s/files/1/0437/8581/4177/files/91727702492.pdf
    • https://cdn.shopify.com/s/files/1/0432/4681/3346/files/sensory_evaluation_form.pdf
    • https://cdn.shopify.com/s/files/1/0435/5391/5043/files/galactus_trilogy.pdf
    • https://cdn.shopify.com/s/files/1/0440/3996/2774/files/katalog_kabel_supreme_nymhy.pdf
    • https://cdn.shopify.com/s/files/1/0431/2177/0656/files/nezibafitadikokigerune.pdf
    • https://cdn.shopify.com/s/files/1/0434/7346/9597/files/verajiloponajivuvapudowa.pdf
    • https://cdn.shopify.com/s/files/1/0435/3314/0127/files/introduction_to_paleontology.pdf
    • https://cdn.shopify.com/s/files/1/0435/2340/8032/files/anti_mosquito_killer_sound_free.pdf
    • https://cdn.shopify.com/s/files/1/0427/7387/2807/files/xexokaxekewosepalexarit.pdf
    • https://cdn.shopify.com/s/files/1/0432/0742/6216/files/28888521291.pdf
    • https://cdn.shopify.com/s/files/1/0432/1506/1153/files/86309947542.pdf
    • https://cdn.shopify.com/s/files/1/0443/9500/4070/files/que_es_atonia_uterina.pdf
    • https://cdn.shopify.com/s/files/1/0432/2885/6487/files/hymenolepis_diminuta_life_cycle.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_off00005b1c.bin
b0346fccedc10299198031fdeba410bfefe969a3e8b08c87e382e6a214a39519
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B1C 4988 bytes
font_01_sfnt_off00006c2c.bin
edd276afc6fa257d3a1843781a15b5515ddee577669616645f722679cc564f59
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2C 10136 bytes
font_02_sfnt_off00008ed4.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x8ED4 4324 bytes