26888fb5b57b38c5df2c5dcbcba011c30ea838c6cedcfc2d83ba812c3a946d39

Analysis

max time kernel
144s
max time network
75s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 21:03

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General

Target

26888fb5b57b38c5df2c5dcbcba011c30ea838c6cedcfc2d83ba812c3a946d39.exe
Size

121KB
MD5

26ce92162dc2354c59ab9b14962ab163
SHA1

76d207d55cf74cf7331a4a73908ecf4a86324e58
SHA256

26888fb5b57b38c5df2c5dcbcba011c30ea838c6cedcfc2d83ba812c3a946d39
SHA512

265046bd103643bd6cb348eead5b9fce3497b4e69d1c32fcd496c33ad5f68b234692c5a22b784c06e70432850d4e39bb05bce554289de9b8f5ad50d2a10750e8
SSDEEP

3072:L+lQ0isXsOnaPioe0Gv9WoR/LzEP5dB6WHKFmQe2:KlECa7+/R/Lw5dWFmQ3

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

kernels32.exe

pid process

1608 kernels32.exe

pid	process
1608	kernels32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

kernels32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	kernels32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Service System = "\"c:\\windows\\kernels32.exe\""	kernels32.exe

Drops file in Windows directory 3 IoCs

Processes:

26888fb5b57b38c5df2c5dcbcba011c30ea838c6cedcfc2d83ba812c3a946d39.exekernels32.exe

description	ioc	process
File created	\??\c:\windows\kernels32.exe	26888fb5b57b38c5df2c5dcbcba011c30ea838c6cedcfc2d83ba812c3a946d39.exe
File opened for modification	\??\c:\windows\kernels32.exe	26888fb5b57b38c5df2c5dcbcba011c30ea838c6cedcfc2d83ba812c3a946d39.exe
File created	C:\Windows\ieupdate.dat	kernels32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

26888fb5b57b38c5df2c5dcbcba011c30ea838c6cedcfc2d83ba812c3a946d39.exekernels32.exe

pid process

1208 26888fb5b57b38c5df2c5dcbcba011c30ea838c6cedcfc2d83ba812c3a946d39.exe
1608 kernels32.exe

pid	process
1208	26888fb5b57b38c5df2c5dcbcba011c30ea838c6cedcfc2d83ba812c3a946d39.exe
1608	kernels32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

26888fb5b57b38c5df2c5dcbcba011c30ea838c6cedcfc2d83ba812c3a946d39.exe

description	pid	process	target process
PID 1208 wrote to memory of 1608	1208	26888fb5b57b38c5df2c5dcbcba011c30ea838c6cedcfc2d83ba812c3a946d39.exe	kernels32.exe
PID 1208 wrote to memory of 1608	1208	26888fb5b57b38c5df2c5dcbcba011c30ea838c6cedcfc2d83ba812c3a946d39.exe	kernels32.exe
PID 1208 wrote to memory of 1608	1208	26888fb5b57b38c5df2c5dcbcba011c30ea838c6cedcfc2d83ba812c3a946d39.exe	kernels32.exe
PID 1208 wrote to memory of 1608	1208	26888fb5b57b38c5df2c5dcbcba011c30ea838c6cedcfc2d83ba812c3a946d39.exe	kernels32.exe

C:\Users\Admin\AppData\Local\Temp\26888fb5b57b38c5df2c5dcbcba011c30ea838c6cedcfc2d83ba812c3a946d39.exe
"C:\Users\Admin\AppData\Local\Temp\26888fb5b57b38c5df2c5dcbcba011c30ea838c6cedcfc2d83ba812c3a946d39.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1208

\??\c:\windows\kernels32.exe
c:\windows\kernels32.exe
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
PID:1608

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\kernels32.exe

Filesize
121KB

MD5
26ce92162dc2354c59ab9b14962ab163

SHA1
76d207d55cf74cf7331a4a73908ecf4a86324e58

SHA256
26888fb5b57b38c5df2c5dcbcba011c30ea838c6cedcfc2d83ba812c3a946d39

SHA512
265046bd103643bd6cb348eead5b9fce3497b4e69d1c32fcd496c33ad5f68b234692c5a22b784c06e70432850d4e39bb05bce554289de9b8f5ad50d2a10750e8

Download Submit
memory/1208-61-0x0000000000400000-0x00000000005A7000-memory.dmp

Filesize
1.7MB

Download
memory/1208-62-0x0000000002AC0000-0x0000000002C67000-memory.dmp

Filesize
1.7MB

Download
memory/1208-65-0x0000000002AC0000-0x0000000002C67000-memory.dmp

Filesize
1.7MB

Download
memory/1208-64-0x0000000000400000-0x00000000005A7000-memory.dmp

Filesize
1.7MB

Download
memory/1608-56-0x0000000000000000-mapping.dmp

Download
memory/1608-60-0x0000000076261000-0x0000000076263000-memory.dmp

Filesize
8KB

Download
memory/1608-63-0x0000000000400000-0x00000000005A7000-memory.dmp

Filesize
1.7MB

Download
memory/1608-66-0x0000000000400000-0x00000000005A7000-memory.dmp

Filesize
1.7MB

Download