kutaki | 998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b

General

Target

998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b.exe
Size

1.0MB
MD5

7d9d24216b329d14d4dd428a23070f29
SHA1

636d97af3f64ad9efe07c5b820e7afddbbf89f74
SHA256

998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b
SHA512

4af9920e7a8d73457702c6ab7b27eb20bd42d4ccc18d8e5c2014e319584894f263d613a72d3de3a44a811a60dfa1bbb10371bc3ffce28d2ac22978fc23f06e53

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 4 IoCs

resource	yara_rule
behavioral1/files/0x000a0000000122b9-58.dat	family_kutaki
behavioral1/files/0x000a0000000122b9-59.dat	family_kutaki
behavioral1/files/0x000a0000000122b9-61.dat	family_kutaki
behavioral1/files/0x000a0000000122b9-66.dat	family_kutaki

Executes dropped EXE 1 IoCs

pid	Process
1244	jpomdvf.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe	998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe	998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b.exe

Loads dropped DLL 2 IoCs

pid	Process
736	998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b.exe
736	998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b.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

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

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Internet Explorer\Main	jpomdvf.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
736	998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b.exe
736	998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b.exe
736	998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b.exe
1244	jpomdvf.exe
1244	jpomdvf.exe
1244	jpomdvf.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 736 wrote to memory of 1128	736	998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b.exe	27
PID 736 wrote to memory of 1128	736	998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b.exe	27
PID 736 wrote to memory of 1128	736	998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b.exe	27
PID 736 wrote to memory of 1128	736	998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b.exe	27
PID 736 wrote to memory of 1244	736	998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b.exe	29
PID 736 wrote to memory of 1244	736	998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b.exe	29
PID 736 wrote to memory of 1244	736	998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b.exe	29
PID 736 wrote to memory of 1244	736	998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b.exe	29

C:\Users\Admin\AppData\Local\Temp\998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b.exe
"C:\Users\Admin\AppData\Local\Temp\998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b.exe"
1⤵
- Drops startup file
- Loads dropped DLL
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:736
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c C:\Users\Admin\AppData\Local\Temp\
  2⤵
  PID:1128
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe"
  2⤵
  - Executes dropped EXE
  - Maps connected drives based on registry
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:1244

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

2

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\jpomdvf.exe

Filesize
1.0MB

MD5
7d9d24216b329d14d4dd428a23070f29

SHA1
636d97af3f64ad9efe07c5b820e7afddbbf89f74

SHA256
998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b

SHA512
4af9920e7a8d73457702c6ab7b27eb20bd42d4ccc18d8e5c2014e319584894f263d613a72d3de3a44a811a60dfa1bbb10371bc3ffce28d2ac22978fc23f06e53

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

Filesize
1.0MB

MD5
7d9d24216b329d14d4dd428a23070f29

SHA1
636d97af3f64ad9efe07c5b820e7afddbbf89f74

SHA256
998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b

SHA512
4af9920e7a8d73457702c6ab7b27eb20bd42d4ccc18d8e5c2014e319584894f263d613a72d3de3a44a811a60dfa1bbb10371bc3ffce28d2ac22978fc23f06e53

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe

Filesize
1.0MB

MD5
7d9d24216b329d14d4dd428a23070f29

SHA1
636d97af3f64ad9efe07c5b820e7afddbbf89f74

SHA256
998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b

SHA512
4af9920e7a8d73457702c6ab7b27eb20bd42d4ccc18d8e5c2014e319584894f263d613a72d3de3a44a811a60dfa1bbb10371bc3ffce28d2ac22978fc23f06e53

Download Submit
\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jpomdvf.exe

Filesize
1.0MB

MD5
7d9d24216b329d14d4dd428a23070f29

SHA1
636d97af3f64ad9efe07c5b820e7afddbbf89f74

SHA256
998388008566177928bfbd0f18e36df434f262dc316726dff764e9b21045881b

SHA512
4af9920e7a8d73457702c6ab7b27eb20bd42d4ccc18d8e5c2014e319584894f263d613a72d3de3a44a811a60dfa1bbb10371bc3ffce28d2ac22978fc23f06e53

Download Submit
memory/736-56-0x00000000762B1000-0x00000000762B3000-memory.dmp

Filesize
8KB

Download
memory/1244-65-0x0000000004201000-0x00000000050AD000-memory.dmp

Filesize
14.7MB

Download

Analysis

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