Malicious PDF — malware analysis report

Static analysis result for SHA-256 c65c27f2a1b0a4a1…

MALICIOUS

PDF

45.3 KB Created: 2020-07-28 14:49:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4849b37212a8a3384178c7c915e71d88 SHA-1: 6a4f02d2a13007f98f4cb494dcd20b5219f396f6 SHA-256: c65c27f2a1b0a4a165f5269882493c1e6da27f647e5a733c9fe45832dfb13125
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a link to a redirector URL, which is a common tactic for delivering malicious payloads. The document body, though heavily obfuscated, suggests a lure related to an 'editable invoice template'. The presence of a 'malicious redirector link' heuristic firing strongly indicates that the link is intended to lead the user to a malicious site. The PDF also contains a link farm, potentially for SEO poisoning to increase visibility.

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.ru/pify?keyword=editable+invoice+template+bootstrap
    • http://files.creativitymhc.com/uploads/1/3/1/3/131383737/tomanemo-wuzupikurelideg-wikebapamisu-gudoluwawixero.pdf
    • http://files.mrskrout.com/uploads/1/3/0/7/130739233/5641910.pdf
    • http://files.swimcopools.com/uploads/1/3/2/6/132695408/samizomozov.pdf
    • http://files.shodacars.com/uploads/1/3/1/4/131453657/sugibi_wakokogunexow_rezis_dawaxofitaku.pdf
    • http://files.mrskrout.com/
    • https://cdn.shopify.com/s/files/1/0428/8151/5673/files/kowuz.pdf
    • https://cdn.shopify.com/s/files/1/0438/9522/6523/files/46612166392.pdf
    • https://cdn.shopify.com/s/files/1/0429/1733/1100/files/69142000750.pdf
    • https://cdn.shopify.com/s/files/1/0431/2258/9853/files/4255936173.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xidegafizupewutuzu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1593/7948/files/zatid.pdf
    • https://cdn.shopify.com/s/files/1/0433/4888/5662/files/tijovedagivadijabuwa.pdf
    • https://cdn.shopify.com/s/files/1/0433/7975/3121/files/wizesojoreriwazewovupulag.pdf
    • https://cdn.shopify.com/s/files/1/0435/0096/1947/files/jeguzawudajifulede.pdf
    • https://cdn.shopify.com/s/files/1/0437/7241/2055/files/fivugefamimafuku.pdf
    • https://cdn.shopify.com/s/files/1/0433/9456/4250/files/fasalotifizorobivow.pdf
    • https://cdn.shopify.com/s/files/1/0434/5269/4680/files/mikub.pdf
    • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/52390749463.pdf
    • https://cdn.shopify.com/s/files/1/0430/4578/1665/files/kotigiboxevu.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_off0000740d.bin
eda90f56d16082ea2f3ab6047df8aaede601014b54f6dcf3213c865c7dea36f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x740D 5164 bytes
font_01_sfnt_off0000857e.bin
74308f173b9c144a68a97104a578446f1263cecf78d062bd382102a78d28a472		 pdf-font-stream PDF embedded font (sfnt) at offset 0x857E 10128 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.