Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9797f98ddc00cae…

MALICIOUS

PDF

57.0 KB Created: 2020-08-10 17:46:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c0d50b227f78fbb955341883a64fa77e SHA-1: e33f91b8c1c5d046acc2d7d91a7cf0045f7c4e2c SHA-256: e9797f98ddc00caeb7852c29f9a656d2d24a7be5ae6b3fc56b78912a2a2bb58d
150 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains a URL that matches this redirector. This suggests the document is designed to trick users into visiting a malicious site, likely for further exploitation or credential harvesting.

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.cc/pify?keyword=beechcraft+1900d+aircraft+flight+manual+pdf
    • http://files.cherylannhillsartist.com/uploads/1/3/1/4/131454116/lijure-zisasedafatux-sepax-gonizev.pdf
    • http://files.math2impact.org/uploads/1/3/2/7/132740342/niwozubuk.pdf
    • http://files.austinalumninupes.com/uploads/1/3/2/7/132712011/kejapajepilap_godosamuwam_mejivivefala_nunigozi.pdf
    • http://geludexu.emmanuel-umc.org/uploads/1/3/1/4/131437601/jidibege.pdf
    • http://files.qacustomvans.com/uploads/1/3/0/7/130740211/5122821.pdf
    • https://cdn.shopify.com/s/files/1/0431/6450/0134/files/31871293975.pdf
    • https://cdn.shopify.com/s/files/1/0437/4190/5050/files/how_to_hack_xbox_360.pdf
    • https://cdn.shopify.com/s/files/1/0432/6575/3241/files/aurora_rising_jay_kristoff.pdf
    • https://cdn.shopify.com/s/files/1/0436/8351/2473/files/xuzefidimekiwilemozasi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xigidewepiwunabifaw.pdf
    • https://cdn.shopify.com/s/files/1/0430/6498/3701/files/engineering_calculus_1.pdf
    • https://cdn.shopify.com/s/files/1/0431/2619/4336/files/tenisiwoduzasiwetigi.pdf
    • https://cdn.shopify.com/s/files/1/0435/7108/5475/files/nirewuvizibovup.pdf
    • https://cdn.shopify.com/s/files/1/0429/7375/7603/files/14624782299.pdf
    • https://cdn.shopify.com/s/files/1/0432/6785/0390/files/mababemosutaxinezaviwiboj.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_off000090b4.bin
06b1d04ba7d5f03db4b3890466344d4a0634daa8472d67788065adb2538d6edb
pdf-font-stream PDF embedded font (sfnt) at offset 0x90B4 5560 bytes
font_01_sfnt_off0000a37c.bin
5f534c23763c812d836746e8671ad5696e1105e2699604184e2306b2213f2b56
pdf-font-stream PDF embedded font (sfnt) at offset 0xA37C 10756 bytes
font_02_sfnt_off0000c85f.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xC85F 4324 bytes