kutaki | a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27

General

Target

a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe
Size

743KB
MD5

3636153d8fdc065fc40aae264f39eb7f
SHA1

3f62736088952839a2379bb33575fc1e963e784e
SHA256

a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27
SHA512

96337dc43b446f6a2793715a8716a4ee688f9e0587020554dcc9a65c21a0b3ea54a2cf29954e23485b0fc29897a84d73a8df560d8b3dfc6f1807b7ca2da8a2b8

Score

10^/10

stealer keylogger kutaki

Malware Config

Signatures

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

Kutaki Executable 4 IoCs

Processes:

resource	yara_rule
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lunlerio.exe	family_kutaki
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lunlerio.exe	family_kutaki
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lunlerio.exe	family_kutaki
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lunlerio.exe	family_kutaki

Executes dropped EXE 1 IoCs

Processes:

lunlerio.exe

pid process

1052 lunlerio.exe

pid	process
1052	lunlerio.exe

Drops startup file 2 IoCs

Processes:

a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lunlerio.exe	a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lunlerio.exe	a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe

Loads dropped DLL 2 IoCs

Processes:

a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe

pid	process
1608	a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe
1608	a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

lunlerio.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	lunlerio.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	lunlerio.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs
adware spyware

Modify Registry
T1112

Processes:

lunlerio.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\Software\Microsoft\Internet Explorer\Main lunlerio.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2090973689-680783404-4292415065-1000\Software\Microsoft\Internet Explorer\Main	lunlerio.exe

Suspicious use of SetWindowsHookEx 6 IoCs

Processes:

a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exelunlerio.exe

pid	process
1608	a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe
1608	a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe
1608	a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe
1052	lunlerio.exe
1052	lunlerio.exe
1052	lunlerio.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe

description	pid	process	target process
PID 1608 wrote to memory of 240	1608	a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe	cmd.exe
PID 1608 wrote to memory of 240	1608	a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe	cmd.exe
PID 1608 wrote to memory of 240	1608	a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe	cmd.exe
PID 1608 wrote to memory of 240	1608	a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe	cmd.exe
PID 1608 wrote to memory of 1052	1608	a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe	lunlerio.exe
PID 1608 wrote to memory of 1052	1608	a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe	lunlerio.exe
PID 1608 wrote to memory of 1052	1608	a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe	lunlerio.exe
PID 1608 wrote to memory of 1052	1608	a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe	lunlerio.exe

C:\Users\Admin\AppData\Local\Temp\a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe
"C:\Users\Admin\AppData\Local\Temp\a6f34907ae34f485e4091ba122886cb32a2cc27856d580fe289c8861d6241f27.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1608

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
2⤵
PID:240

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lunlerio.exe
"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lunlerio.exe"
2⤵
- Executes dropped EXE
- Maps connected drives based on registry
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1052

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

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

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\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lunlerio.exe

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\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\lunlerio.exe

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memory/240-2-0x0000000000000000-mapping.dmp

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memory/1052-5-0x0000000000000000-mapping.dmp

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memory/1052-9-0x0000000002AB0000-0x0000000002AC1000-memory.dmp

Filesize
68KB

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memory/1052-10-0x0000000002AB0000-0x0000000002AC1000-memory.dmp

Filesize
68KB

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Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads