Malicious PDF — malware analysis report

Static analysis result for SHA-256 dae43699f86dd8b0…

MALICIOUS

PDF

45.9 KB Created: 2020-08-06 01:31:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8122c91282e8e700f2c4c944bfecddf6 SHA-1: 1160ef790d9ec495ab41d1dde0a5cc169b67e907 SHA-256: dae43699f86dd8b0cb92d32f28bf4186de0f4b694cb663182c1fca0fd388b1b6
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is likely intended to lead the user to a malicious site. The document body itself contains garbled text but also includes the malicious URL and numerous other URLs hosted on cdn.shopify.com and other domains, suggesting a link farm or redirection strategy. The presence of a malicious redirector URL indicates an attempt to deliver a payload or phish credentials.

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=uhr+lernen+kinder+pdf
    • http://visile.kgreigcpa.com/uploads/1/3/1/4/131438216/5924633.pdf
    • http://files.nicole-pellegrino.com/uploads/1/3/0/9/130969204/2635070.pdf
    • http://files.ligonierhighlandgames.org/uploads/1/3/2/8/132816036/ed36859012d.pdf
    • http://gilovivix.juniperlactation.com/uploads/1/3/0/8/130814229/lejow_lebekunoxumof_fizutawubi_karurizotimosel.pdf
    • https://cdn.shopify.com/s/files/1/0433/0278/1083/files/73878571369.pdf
    • https://cdn.shopify.com/s/files/1/0432/8675/7536/files/28202707363.pdf
    • https://cdn.shopify.com/s/files/1/0431/3517/2770/files/the_challenge_of_democracy_13th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0440/2518/4421/files/tovugedovinevuju.pdf
    • https://cdn.shopify.com/s/files/1/0431/5434/2042/files/tensorflow_gpu_mac.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/preparation_and_sterilization_of_culture_media.pdf
    • https://cdn.shopify.com/s/files/1/0431/1810/0637/files/vukixafizu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0828/6105/files/toledo_craiglist_com.pdf
    • https://cdn.shopify.com/s/files/1/0434/6265/6165/files/juninuzibixi.pdf
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/tafivoj.pdf
    • https://cdn.shopify.com/s/files/1/0432/5664/3739/files/58410491336.pdf
    • https://cdn.shopify.com/s/files/1/0431/6128/8868/files/soxatomunijotoli.pdf
    • https://cdn.shopify.com/s/files/1/0427/6033/9623/files/zukaregibofupu.pdf
    • https://cdn.shopify.com/s/files/1/0438/9535/7595/files/romance_guitar_tab.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_off000068e7.bin
704f963de400bce363ae55527dd77aa51337f1d5dfe778755fcffb5c0e15dd4b
pdf-font-stream PDF embedded font (sfnt) at offset 0x68E7 4392 bytes
font_01_sfnt_off000077af.bin
1f6852d9a31a4b1e25e3ed2fa7b6e5b797cb4aaddcda9c591da644b7c8cbb306
pdf-font-stream PDF embedded font (sfnt) at offset 0x77AF 10696 bytes
font_02_sfnt_off00009af5.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9AF5 4324 bytes