SUSPICIOUS — putty_fresh.exe
SUSPICIOUS — putty_fresh.exe is a pe sample analyzed by MalwareAnalyzer by Cyble with a suspicious verdict (40/100), attributed to the lief family. 1 of 40 detection engines flagged it, exhibiting 1 ATT&CK technique.
Identification
- SHA-256:
143923b02868ac634ab0c070d10f3052fe7788fac66b7b0510943baf72e14191 - SHA-1:
bcdca035b1201acd1bb5bc1399c37f9b76f757ee - MD5:
c396f6f9e4b6540ff7474951b430cc6e - imphash:
b15607f10222dbea8c0557d3f0e79457 - ssdeep:
49152:VOavQKlTbj+6dxyKUKtZGRXvWq/artnqoaaHSDw3:V1dqC1HtGS - TLSH:
T1F9589D6540173233D1FAED15F822C8DD9073B425A539DD8E8207DA5650E9EBBBAF00B2 - Submitted as: putty_fresh.exe
- File type: pe · Size: 1708672 bytes
- Verdict: suspicious (40/100) · Family: lief
Detections (1 of 40 engines)
- LIEF (executable format parser): lief:invalid-authenticode
MITRE ATT&CK
Why this verdict
The suspicious score of 40/100 is the fusion of 4 weighted signals:
- LIEF (executable format parser) flagged lief:invalid-authenticode (rule
lief:invalid-authenticode) - engine signal, weight 0.35, confidence 0.70 - Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90 - Contacted 5 host(s) at runtime - network signal, weight 0.12, confidence 0.55
- Extracted generic config (3 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
561 behavior events · 1 ATT&CK techniques · 1 dropped files.
Runtime network
- www.msftconnecttest.com
- edge-consumer-static.azureedge.net
- 192.168.122.106
- 192.168.122.1
- 192.168.122.255
- 224.0.0.252
- 239.255.255.250
Dropped files
- 43b07a20a34c0a82ede445873424234b65d431b8519558f609531a0060355914 -
43b07a20a34c0a82ede445873424234b65d431b8519558f609531a0060355914
Embedded URLs
- https://www.chiark.greenend.org.uk/~sgtatham/putty/
- http://schemas.microsoft.com/SMI/2005/WindowsSettings
- http://schemas.microsoft.com/SMI/2016/WindowsSettings
- http://crl.sectigo.com/SectigoPublicCodeSigningRootR46.crl0{
- http://crt.sectigo.com/SectigoPublicCodeSigningRootR46.p7c0#
- http://ocsp.sectigo.com0
- https://sectigo.com/CPS0
- http://crl.usertrust.com/USERTrustRSACertificationAuthority.crl05
- http://ocsp.usertrust.com0
- http://crl.sectigo.com/SectigoPublicTimeStampingRootR46.crl0
- http://crt.sectigo.com/SectigoPublicTimeStampingRootR46.p7c0#
Embedded domains
- putty.projects.tartarus.org
- ssh.com
- openssh.com
- demo-server.example.com
- libssh.org
- lysator.liu.se
- www.chiark.greenend.org.uk
- projects.tartarus.org
- host.name
- schemas.microsoft.com
- crl.sectigo.com
- crt.sectigo.com
- sectigo.com
- crl.usertrust.com
- ocsp.sectigo.com0
- ocsp.usertrust.com0
Embedded IP addresses
- 6.0.0.0
Registry keys
- HKEY_CURRENT_USER\%s\%s
More lief samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report