b40343b7232767c33d523bf2f8ac024daef3a30543cf78bf9c0f84f96c54c018

General

Target

92210b06e41c9e1faea4293d91ee2930_NEIKI.exe
Size

256KB
MD5

92210b06e41c9e1faea4293d91ee2930
SHA1

df7c662418258df4b742a988e8f3dde83cbd8b73
SHA256

b40343b7232767c33d523bf2f8ac024daef3a30543cf78bf9c0f84f96c54c018
SHA512

5ed8a046b229da42145a311a68052dcde62a53de1980956ab2ec788e61d995e1dc71c270e3f439029b0ea1d17f57a10c25d6007bd51e66de0cafa75d94bf16ae
SSDEEP

6144:iyHJ4wTB5Ia9p+S0dSpTU+h/zquE1j57Lu6Bwc77:ig4wTvoS05kzNEj7Lu6n

Score

7^/10

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
1888	twezm.exe

Executes dropped EXE 2 IoCs

pid	Process
1888	twezm.exe
2536	ktr.exe

Loads dropped DLL 7 IoCs

pid	Process
2092	cmd.exe
2092	cmd.exe
1888	twezm.exe
2536	ktr.exe
2536	ktr.exe
2536	ktr.exe
2536	ktr.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\himfzsx\\ktr.exe \"c:\\Program Files\\himfzsx\\ktrsr.dll\",Compliance"	ktr.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\i:	ktr.exe
File opened (read-only)	\??\p:	ktr.exe
File opened (read-only)	\??\s:	ktr.exe
File opened (read-only)	\??\t:	ktr.exe
File opened (read-only)	\??\y:	ktr.exe
File opened (read-only)	\??\b:	ktr.exe
File opened (read-only)	\??\k:	ktr.exe
File opened (read-only)	\??\l:	ktr.exe
File opened (read-only)	\??\o:	ktr.exe
File opened (read-only)	\??\r:	ktr.exe
File opened (read-only)	\??\u:	ktr.exe
File opened (read-only)	\??\x:	ktr.exe
File opened (read-only)	\??\e:	ktr.exe
File opened (read-only)	\??\j:	ktr.exe
File opened (read-only)	\??\m:	ktr.exe
File opened (read-only)	\??\q:	ktr.exe
File opened (read-only)	\??\h:	ktr.exe
File opened (read-only)	\??\g:	ktr.exe
File opened (read-only)	\??\n:	ktr.exe
File opened (read-only)	\??\v:	ktr.exe
File opened (read-only)	\??\w:	ktr.exe
File opened (read-only)	\??\z:	ktr.exe
File opened (read-only)	\??\a:	ktr.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	ktr.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\himfzsx	twezm.exe
File created	\??\c:\Program Files\himfzsx\ktrsr.dll	twezm.exe
File created	\??\c:\Program Files\himfzsx\ktr.exe	twezm.exe
File opened for modification	\??\c:\Program Files\himfzsx\ktr.exe	twezm.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ktr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ktr.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1632	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2536	ktr.exe
2536	ktr.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2536	ktr.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1072	92210b06e41c9e1faea4293d91ee2930_NEIKI.exe
1888	twezm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1072 wrote to memory of 2092	1072	92210b06e41c9e1faea4293d91ee2930_NEIKI.exe	28
PID 1072 wrote to memory of 2092	1072	92210b06e41c9e1faea4293d91ee2930_NEIKI.exe	28
PID 1072 wrote to memory of 2092	1072	92210b06e41c9e1faea4293d91ee2930_NEIKI.exe	28
PID 1072 wrote to memory of 2092	1072	92210b06e41c9e1faea4293d91ee2930_NEIKI.exe	28
PID 2092 wrote to memory of 1632	2092	cmd.exe	30
PID 2092 wrote to memory of 1632	2092	cmd.exe	30
PID 2092 wrote to memory of 1632	2092	cmd.exe	30
PID 2092 wrote to memory of 1632	2092	cmd.exe	30
PID 2092 wrote to memory of 1888	2092	cmd.exe	31
PID 2092 wrote to memory of 1888	2092	cmd.exe	31
PID 2092 wrote to memory of 1888	2092	cmd.exe	31
PID 2092 wrote to memory of 1888	2092	cmd.exe	31
PID 1888 wrote to memory of 2536	1888	twezm.exe	32
PID 1888 wrote to memory of 2536	1888	twezm.exe	32
PID 1888 wrote to memory of 2536	1888	twezm.exe	32
PID 1888 wrote to memory of 2536	1888	twezm.exe	32

C:\Users\Admin\AppData\Local\Temp\92210b06e41c9e1faea4293d91ee2930_NEIKI.exe
"C:\Users\Admin\AppData\Local\Temp\92210b06e41c9e1faea4293d91ee2930_NEIKI.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1072
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\twezm.exe "C:\Users\Admin\AppData\Local\Temp\92210b06e41c9e1faea4293d91ee2930_NEIKI.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2092
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - Runs ping.exe
    PID:1632
- - C:\Users\Admin\AppData\Local\Temp\twezm.exe
    C:\Users\Admin\AppData\Local\Temp\\twezm.exe "C:\Users\Admin\AppData\Local\Temp\92210b06e41c9e1faea4293d91ee2930_NEIKI.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Loads dropped DLL
    - Drops file in Program Files directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1888
  - - \??\c:\Program Files\himfzsx\ktr.exe
      "c:\Program Files\himfzsx\ktr.exe" "c:\Program Files\himfzsx\ktrsr.dll",Compliance C:\Users\Admin\AppData\Local\Temp\twezm.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2536

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\??\c:\Program Files\himfzsx\ktrsr.dll

Filesize
179KB

MD5
d9c085d40c5e25d32e7b86613814302e

SHA1
0f8d166b1dd4050ab31622fe6789fb3d70c23b46

SHA256
4c6b8b5689c4e3ed35780041f2ff725f2245f08539a0f3361493b8d3b20b711b

SHA512
8e5e05d29c55e7acdc7b67f7d6c1ae18689029a2c9ca4a653265f7899946db27179026ce5a7862fd4c5a6de0dcc92df318fb6e80cbee1483c867b34f0c697120

Download Submit
\Program Files\himfzsx\ktr.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
\Users\Admin\AppData\Local\Temp\twezm.exe

Filesize
256KB

MD5
01ac201957f99dede7977b8399381407

SHA1
a2c141fb0191b8d9c802eab3df8378b3ee9f4901

SHA256
442652c118774ebdb6f5e2124c17f44353bc84f2fe9ca4a9c0c6c6ec5c3de4d2

SHA512
7f7069e20ead3ac30d61bac049c7faf490f76ccb8604a5e08ff41b8567253e858c5b35bc297bbc41174e4009ff45db2443260125766505db710e03471426c3ef

Download Submit
memory/1072-0-0x0000000000400000-0x000000000044D01D-memory.dmp

Filesize
308KB

Download
memory/1072-3-0x0000000000400000-0x000000000044D01D-memory.dmp

Filesize
308KB

Download
memory/1072-1-0x0000000000020000-0x0000000000021000-memory.dmp

Filesize
4KB

Download
memory/1888-10-0x0000000000400000-0x000000000044D01D-memory.dmp

Filesize
308KB

Download
memory/1888-18-0x0000000000400000-0x000000000044D01D-memory.dmp

Filesize
308KB

Download
memory/2092-8-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2092-7-0x0000000000400000-0x000000000044E000-memory.dmp

Filesize
312KB

Download
memory/2536-25-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2536-26-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/2536-27-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download
memory/2536-30-0x0000000010000000-0x000000001004F000-memory.dmp

Filesize
316KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads