Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2970b03afed98f4…

MALICIOUS

PDF

36.2 KB Created: 2020-08-13 22:02:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9e3b633f22bd3dfa7710d487b83068c6 SHA-1: be5b4c062e79003863a4853a827b7b298f834cb0 SHA-256: d2970b03afed98f46627819decacf92852e896d7e462ac0b31d31506590249bb
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com', which is further associated with a SEO link farm containing numerous PDF files. The document body also contains the same URL, suggesting it's the primary lure. The presence of a download button heuristic reinforces the social engineering aspect of the attack. The file is likely a downloader or part of a phishing campaign.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=grand+shooter+3d+gun+game+apk
    • http://files.watips.net/uploads/1/3/0/8/130874125/kaxiwawujidobopib.pdf
    • http://files.trebor-ts.com/uploads/1/3/1/8/131871690/4fa93.pdf
    • http://files.kimberlifreilinger.com/uploads/1/3/2/3/132303320/9141780.pdf
    • http://wifoki.chcslonline.org/uploads/1/3/2/8/132815028/nalegi_gavovov_jipipeladokuw_rojuba.pdf
    • https://cdn.shopify.com/s/files/1/0427/8393/2582/files/ludisiweluwumubuwufukor.pdf
    • https://cdn.shopify.com/s/files/1/0437/1392/1189/files/fe_civil_review_manual_download.pdf
    • https://cdn.shopify.com/s/files/1/0440/5798/5189/files/mifudiwe.pdf
    • https://cdn.shopify.com/s/files/1/0431/5509/5712/files/wazogofadanut.pdf
    • https://cdn.shopify.com/s/files/1/0434/3395/1399/files/biggest_loser_challenge_at_work.pdf
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/91721827268.pdf
    • https://cdn.shopify.com/s/files/1/0437/6713/6408/files/dolenosurixodajiro.pdf
    • https://cdn.shopify.com/s/files/1/0434/8890/3325/files/64457052641.pdf
    • https://cdn.shopify.com/s/files/1/0431/6174/7620/files/kavebebenisomodufesox.pdf
    • https://cdn.shopify.com/s/files/1/0434/6816/1184/files/ropowabijatadegirixidava.pdf
    • https://cdn.shopify.com/s/files/1/0434/7818/8198/files/73871053167.pdf
    • https://cdn.shopify.com/s/files/1/0428/7240/6179/files/dudixudevevivirizalefafov.pdf
    • https://cdn.shopify.com/s/files/1/0437/7369/0017/files/ximem.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f92.bin
9116b2833b790ada76c8202de1a49ab54c3c22e048f82f8929650bde7b537066
pdf-font-stream PDF embedded font (sfnt) at offset 0x4F92 5600 bytes
font_01_sfnt_off00006274.bin
133d830406015c238068961d176ce4625ebd02be6eebccbba1fbe243b88addb6
pdf-font-stream PDF embedded font (sfnt) at offset 0x6274 9756 bytes