Malicious PDF — malware analysis report

Static analysis result for SHA-256 a593a62c5485a6ce…

MALICIOUS

PDF

80.9 KB Created: 2020-08-05 17:33:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 742d24ca11294e7eef4996558e014e5f SHA-1: ec37c14b8d1d92402124fde52b592ec6be85dd8d SHA-256: a593a62c5485a6ce7732fd18dfcee0c464e9419187a8cc0c7e0a31426cc297cd
120 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 critical redirector link pointing to ttraff.cc, which is known malicious infrastructure. The document body, though heavily obfuscated, contains text related to 'Makerere university fees structure 2020 17 pdf', suggesting a lure. The primary malicious URL is https://ttraff.cc/pify?keyword=makerere+university+fees+structure+2020+17+pdf, which likely leads to further malicious content.

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.cc/pify?keyword=makerere+university+fees+structure+2020+17+pdf
    • http://files.updatescentral.com/uploads/1/3/1/3/131384018/fotimiva_nidanu_gibuvidedavade.pdf
    • http://files.northpointemed.com/uploads/1/3/0/7/130776592/1222042.pdf
    • http://files.freemaninsure.com/uploads/1/3/0/8/130874324/sosowor_peresixosixar_rejerugovije.pdf
    • http://files.northwindhamunionchurch.org/uploads/1/3/2/7/132712006/zobav.pdf
    • https://cdn.shopify.com/s/files/1/0438/3680/1184/files/62828868648.pdf
    • https://cdn.shopify.com/s/files/1/0434/1969/7310/files/petametabor.pdf
    • https://cdn.shopify.com/s/files/1/0433/6753/0657/files/sexefasuvudop.pdf
    • https://cdn.shopify.com/s/files/1/0435/5555/3432/files/5271807504.pdf
    • https://cdn.shopify.com/s/files/1/0432/2590/7368/files/golitazokudibisegiguv.pdf
    • https://cdn.shopify.com/s/files/1/0438/7697/4747/files/58626003711.pdf
    • https://cdn.shopify.com/s/files/1/0429/2683/3823/files/fulilidafupuwajepekako.pdf
    • https://cdn.shopify.com/s/files/1/0433/9892/2392/files/85534958787.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/welilavuruwad.pdf
    • https://cdn.shopify.com/s/files/1/0430/7327/4018/files/briggs_and_stratton_parts_manual.pdf
    • https://cdn.shopify.com/s/files/1/0434/6737/4758/files/kilisusom.pdf
    • https://cdn.shopify.com/s/files/1/0431/0476/4068/files/32248715392.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30106301206.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bebupikisanomagidilu.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_off0000e0b9.bin
8cb41cc4eaf3b8a061bf89dea537b2b49e2800c09f4ed1471f5ed451ca8ff755
pdf-font-stream PDF embedded font (sfnt) at offset 0xE0B9 5528 bytes
font_01_sfnt_off0000f3b2.bin
b599562d412a8f7b68fc1ded596b3f360e03c7b5b06b6a38b1f134660c5632d2
pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B2 16952 bytes
font_02_sfnt_off000127a4.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x127A4 4324 bytes