Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc45997eff1b4926…

MALICIOUS

PDF

45.6 KB Created: 2020-08-09 06:30:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 87ad6a75415d8200e79b657baab2abf5 SHA-1: 2745b878746d2f7eb563c20d933d7c2f7766c78c SHA-256: bc45997eff1b49262ae31258179d2fb4a040761e2fb1bb761b0b196f55469e19
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on ttraff.cc. This infrastructure is known to redirect users to malicious sites. The document body, though heavily obfuscated, contains the URL that triggers the redirection, indicating a social engineering lure to entice users to click on the malicious link. The PDF also contains numerous benign-looking links hosted on shopify.com, likely to blend in with legitimate 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=protection+of+domestic+violence+act+2020+pdf
    • http://rofilipe.everygreatreason.org/uploads/1/3/1/3/131380213/lolefori.pdf
    • http://files.mistresskami.com/uploads/1/3/1/3/131398171/8145219.pdf
    • http://pazowuka.mommomnomnom.com/uploads/1/3/2/3/132303382/golute.pdf
    • http://gakesigum.bfstrings.com/uploads/1/3/1/6/131606289/razupo.pdf
    • http://files.rockfishgrovefwbchurch.com/uploads/1/3/1/1/131164386/4647d.pdf
    • https://cdn.shopify.com/s/files/1/0429/9322/1783/files/getulomuzukutewasomod.pdf
    • https://cdn.shopify.com/s/files/1/0434/1540/4702/files/welch_t_test.pdf
    • https://cdn.shopify.com/s/files/1/0432/0293/6992/files/uttar_pradesh_census_2020_data.pdf
    • https://cdn.shopify.com/s/files/1/0434/5148/2278/files/jilevageganusugotufi.pdf
    • https://cdn.shopify.com/s/files/1/0430/5040/1945/files/nawufidoti.pdf
    • https://cdn.shopify.com/s/files/1/0438/1723/8685/files/dean_vaughn_medical_terminology.pdf
    • https://cdn.shopify.com/s/files/1/0434/6249/2310/files/bankruptcy_act_malaysia_2020.pdf
    • https://cdn.shopify.com/s/files/1/0434/1347/1384/files/51213348410.pdf
    • https://cdn.shopify.com/s/files/1/0438/7789/2264/files/oxford_discover_2_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/4294/6728/files/selekuwaveferisu.pdf
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/historia_original_de_la_bella_durmiente.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gobobuxewinunegurugita.pdf
    • https://cdn.shopify.com/s/files/1/0434/4571/5109/files/cracking_the_sat_chemistry_subject_test_16th_edition.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_off000067d1.bin
1fa3b77fb6e5bac7e31273bc13a3adb0c88b5e18228c2895dbd5525da27dfe95
pdf-font-stream PDF embedded font (sfnt) at offset 0x67D1 5424 bytes
font_01_sfnt_off00007a25.bin
b6959a844b5ea84b5f279fb3a868090275355e22e72366c2dfbf27ba0fd4dbaa
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A25 9536 bytes
font_02_sfnt_off00009ae1.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0x9AE1 4324 bytes