kutaki | 7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6

General

Target

7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6.exe
Size

1.3MB
MD5

e184e10181e18e7a761530dccb296bd7
SHA1

852260f0776d884678ba949957f31a8da3edb71e
SHA256

7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6
SHA512

7bb7e0c4857eda2782a4e8c2342a2d8dfd6b70df1900ae5443600ae379f7d20efb5100f9992a009d6c12be56054f4afd1d611d0d29574a163b396894612047c1

Score

10^/10

kutaki keylogger stealer

Malware Config

Signatures

Kutaki
Information stealer and keylogger that hides inside legitimate Visual Basic applications.
stealer keylogger kutaki

Kutaki Executable 2 IoCs

resource	yara_rule
behavioral2/files/0x000200000001e697-138.dat	family_kutaki
behavioral2/files/0x000200000001e697-139.dat	family_kutaki

Executes dropped EXE 1 IoCs

pid	Process
3416	fgzvtsch.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fgzvtsch.exe	7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fgzvtsch.exe	7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
2144	7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6.exe
2144	7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6.exe
2144	7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6.exe
2144	7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6.exe
3416	fgzvtsch.exe
3416	fgzvtsch.exe
3416	fgzvtsch.exe
3416	fgzvtsch.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2144 wrote to memory of 392	2144	7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6.exe	83
PID 2144 wrote to memory of 392	2144	7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6.exe	83
PID 2144 wrote to memory of 392	2144	7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6.exe	83
PID 2144 wrote to memory of 3416	2144	7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6.exe	88
PID 2144 wrote to memory of 3416	2144	7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6.exe	88
PID 2144 wrote to memory of 3416	2144	7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6.exe	88

C:\Users\Admin\AppData\Local\Temp\7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6.exe
"C:\Users\Admin\AppData\Local\Temp\7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6.exe"
1⤵
- Drops startup file
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2144
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
  2⤵
  PID:392
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fgzvtsch.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fgzvtsch.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:3416

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fgzvtsch.exe

Filesize
1.3MB

MD5
e184e10181e18e7a761530dccb296bd7

SHA1
852260f0776d884678ba949957f31a8da3edb71e

SHA256
7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6

SHA512
7bb7e0c4857eda2782a4e8c2342a2d8dfd6b70df1900ae5443600ae379f7d20efb5100f9992a009d6c12be56054f4afd1d611d0d29574a163b396894612047c1

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\fgzvtsch.exe

Filesize
1.3MB

MD5
e184e10181e18e7a761530dccb296bd7

SHA1
852260f0776d884678ba949957f31a8da3edb71e

SHA256
7c1b70174d26b365555d457f7f564bd3bde4e66d84fd9b0d49b12fffa62daac6

SHA512
7bb7e0c4857eda2782a4e8c2342a2d8dfd6b70df1900ae5443600ae379f7d20efb5100f9992a009d6c12be56054f4afd1d611d0d29574a163b396894612047c1

Download Submit

Analysis

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