Malicious PDF — malware analysis report

Static analysis result for SHA-256 85fa25aee82f1c3e…

MALICIOUS

PDF

41.6 KB Created: 2020-08-07 00:58:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6dcc1bde4bd055d07e7adf147e3cc361 SHA-1: 75f6c935c77071e82ce18ce4706b29884f41c52c SHA-256: 85fa25aee82f1c3ebe1ef32cf16a4fddca06028bf43a79514d41924362a2cf6e
160 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a "pdf converter to word free download crack". This link leads to ttraff.cc, which is known malicious infrastructure. The document also contains a large number of embedded links, many pointing to Shopify domains, likely for SEO manipulation to increase visibility. The presence of a remote-support lure suggests an attempt to gain unauthorized access to the user's system.

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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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=pdf+converter+to+word+free+download+crack
    • http://files.modernmedicinegroup.com/uploads/1/3/2/3/132302960/080b3c4665fd67b.pdf
    • http://files.headsuprivertowns.com/uploads/1/3/0/9/130968984/wokesofupinuki.pdf
    • http://files.centralvalleybaptistcascade.com/uploads/1/3/1/4/131411474/pazon.pdf
    • https://cdn.shopify.com/s/files/1/0437/8161/9861/files/tovajopapilunaxenukeluxef.pdf
    • https://cdn.shopify.com/s/files/1/0432/4638/7367/files/bauma_2020_exhibitor_list.pdf
    • https://cdn.shopify.com/s/files/1/0429/1769/1559/files/cow_gestation_chart.pdf
    • https://cdn.shopify.com/s/files/1/0434/6209/9109/files/linux_convert_mkv_to_mp4.pdf
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/cube_world_real_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5671/files/90563346502.pdf
    • https://cdn.shopify.com/s/files/1/0433/4986/8712/files/bmv_cuyahoga_falls.pdf
    • https://cdn.shopify.com/s/files/1/0436/4759/8742/files/51976974786.pdf
    • https://cdn.shopify.com/s/files/1/0437/7464/0286/files/14479068499.pdf
    • https://cdn.shopify.com/s/files/1/0433/4642/8059/files/zapowigoxigoworifotud.pdf
    • https://cdn.shopify.com/s/files/1/0430/9562/1796/files/pezemawemawafojiwedake.pdf
    • https://cdn.shopify.com/s/files/1/0428/4124/3814/files/affliction_icy_veins.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_off000065d2.bin
ba3e55f6a64d176b4443f746941c875e2aecf732980999d476f79e4660854734
pdf-font-stream PDF embedded font (sfnt) at offset 0x65D2 5052 bytes
font_01_sfnt_off0000772e.bin
20f3a9e5a8cbdbbbc1efc63f796e325e9f78092838d0041d170867990176c8d2
pdf-font-stream PDF embedded font (sfnt) at offset 0x772E 9920 bytes