imminent | c024e4c618a1d992e9fde650222e833bc97d296cfed8a7b15eb423f84a27bc5e

Analysis

max time kernel
206s
max time network
211s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2022 15:54

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General

Target

c024e4c618a1d992e9fde650222e833bc97d296cfed8a7b15eb423f84a27bc5e.exe
Size

841KB
MD5

896c84cb44934b70fecaff43f3dfd373
SHA1

985cc035009ab9d4da1bab43c96d1dfa1e413d2c
SHA256

c024e4c618a1d992e9fde650222e833bc97d296cfed8a7b15eb423f84a27bc5e
SHA512

d55a52ad977c7025ba7e8deb60141a1011c42321c3bc738ac4ba40dc554370ba64d6390311609f03eead210fc581870d54ceac9886492f356e80a65925771ac7
SSDEEP

12288:AxgBJLwq2oBVdxPMmlyMXq40ZxFcnApjOjMc4KLtp7sB/2SwzMjfb7iH:A6BJZ2oZhlg/PjOj4KcJ2S4efXiH

Score

10^/10

imminent persistence spyware trojan

Malware Config

Signatures

Imminent RAT
Remote-access trojan based on Imminent Monitor remote admin software.
trojan spyware imminent

Executes dropped EXE 3 IoCs

pid	Process
4884	yif22.exe
2276	yif22.exe
3964	csrss.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	c024e4c618a1d992e9fde650222e833bc97d296cfed8a7b15eb423f84a27bc5e.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	yif22.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Yif22 = "C:\\Users\\Admin\\AppData\\Roaming\\subr\\winrfolderr\\yif22.exe"	yif22.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Yif22 = "C:\\Users\\Admin\\AppData\\Roaming\\subr\\winrfolderr\\yif22.exe"	yif22.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Yif22 = "C:\\Users\\Admin\\AppData\\Roaming\\subr\\winrfolderr\\yif22.exe"	csrss.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Yif22 = "C:\\Users\\Admin\\AppData\\Roaming\\subr\\winrfolderr\\yif22.exe"	csrss.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	yif22.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	yif22.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4884 set thread context of 2276	4884	yif22.exe	84

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	yif22.exe
File created	C:\Windows\assembly\Desktop.ini	yif22.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	yif22.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	yif22.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe
3964	csrss.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2276	yif22.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3964	csrss.exe
Token: SeDebugPrivilege	2276	yif22.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2276	yif22.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 4884	2040	c024e4c618a1d992e9fde650222e833bc97d296cfed8a7b15eb423f84a27bc5e.exe	83
PID 2040 wrote to memory of 4884	2040	c024e4c618a1d992e9fde650222e833bc97d296cfed8a7b15eb423f84a27bc5e.exe	83
PID 4884 wrote to memory of 2276	4884	yif22.exe	84
PID 4884 wrote to memory of 2276	4884	yif22.exe	84
PID 4884 wrote to memory of 2276	4884	yif22.exe	84
PID 4884 wrote to memory of 2276	4884	yif22.exe	84
PID 4884 wrote to memory of 2276	4884	yif22.exe	84
PID 4884 wrote to memory of 2276	4884	yif22.exe	84
PID 4884 wrote to memory of 2276	4884	yif22.exe	84
PID 4884 wrote to memory of 2276	4884	yif22.exe	84
PID 4884 wrote to memory of 3964	4884	yif22.exe	88
PID 4884 wrote to memory of 3964	4884	yif22.exe	88

C:\Users\Admin\AppData\Local\Temp\c024e4c618a1d992e9fde650222e833bc97d296cfed8a7b15eb423f84a27bc5e.exe
"C:\Users\Admin\AppData\Local\Temp\c024e4c618a1d992e9fde650222e833bc97d296cfed8a7b15eb423f84a27bc5e.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Users\Admin\AppData\Roaming\subr\winrfolderr\yif22.exe
  "C:\Users\Admin\AppData\Roaming\subr\winrfolderr\yif22.exe"
  2⤵
  - Executes dropped EXE
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:4884
- - C:\Users\Admin\AppData\Roaming\Microsoft\yif22.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\yif22.exe"
    3⤵
    - Executes dropped EXE
    - Drops desktop.ini file(s)
    - Drops file in Windows directory
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2276
- - C:\Users\Admin\AppData\Roaming\subr\winrfolderr\csrss.exe
    "C:\Users\Admin\AppData\Roaming\subr\winrfolderr\csrss.exe" -reg C:\Users\Admin\AppData\Roaming\subr\winrfolderr\yif22.exe -proc 2276 C:\Users\Admin\AppData\Roaming\subr\winrfolderr\yif22.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3964

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\yif22.exe

Filesize
4KB

MD5
e1190859ab4f21e58d1873afc1b3cff2

SHA1
50d4f9f444dba70b9918c4b812b5d9a098e0f867

SHA256
9b6f8344738cd1b954066a8099333dfa46c360700d8113312e8f1f6f22afcb73

SHA512
f3924e6b6002e9122c9465d23ff5a574268800078e9fe6011e0d62dca6113ffaf786fa46338a02288d8059e09ef0e79ac96d004dacabcb708291cf4376294a38

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\yif22.exe

Filesize
4KB

MD5
e1190859ab4f21e58d1873afc1b3cff2

SHA1
50d4f9f444dba70b9918c4b812b5d9a098e0f867

SHA256
9b6f8344738cd1b954066a8099333dfa46c360700d8113312e8f1f6f22afcb73

SHA512
f3924e6b6002e9122c9465d23ff5a574268800078e9fe6011e0d62dca6113ffaf786fa46338a02288d8059e09ef0e79ac96d004dacabcb708291cf4376294a38

Download Submit
C:\Users\Admin\AppData\Roaming\subr\winrfolderr\csrss.exe

Filesize
841KB

MD5
896c84cb44934b70fecaff43f3dfd373

SHA1
985cc035009ab9d4da1bab43c96d1dfa1e413d2c

SHA256
c024e4c618a1d992e9fde650222e833bc97d296cfed8a7b15eb423f84a27bc5e

SHA512
d55a52ad977c7025ba7e8deb60141a1011c42321c3bc738ac4ba40dc554370ba64d6390311609f03eead210fc581870d54ceac9886492f356e80a65925771ac7

Download Submit
C:\Users\Admin\AppData\Roaming\subr\winrfolderr\csrss.exe

Filesize
841KB

MD5
896c84cb44934b70fecaff43f3dfd373

SHA1
985cc035009ab9d4da1bab43c96d1dfa1e413d2c

SHA256
c024e4c618a1d992e9fde650222e833bc97d296cfed8a7b15eb423f84a27bc5e

SHA512
d55a52ad977c7025ba7e8deb60141a1011c42321c3bc738ac4ba40dc554370ba64d6390311609f03eead210fc581870d54ceac9886492f356e80a65925771ac7

Download Submit
C:\Users\Admin\AppData\Roaming\subr\winrfolderr\yif22.exe

Filesize
841KB

MD5
896c84cb44934b70fecaff43f3dfd373

SHA1
985cc035009ab9d4da1bab43c96d1dfa1e413d2c

SHA256
c024e4c618a1d992e9fde650222e833bc97d296cfed8a7b15eb423f84a27bc5e

SHA512
d55a52ad977c7025ba7e8deb60141a1011c42321c3bc738ac4ba40dc554370ba64d6390311609f03eead210fc581870d54ceac9886492f356e80a65925771ac7

Download Submit
C:\Users\Admin\AppData\Roaming\subr\winrfolderr\yif22.exe

Filesize
841KB

MD5
896c84cb44934b70fecaff43f3dfd373

SHA1
985cc035009ab9d4da1bab43c96d1dfa1e413d2c

SHA256
c024e4c618a1d992e9fde650222e833bc97d296cfed8a7b15eb423f84a27bc5e

SHA512
d55a52ad977c7025ba7e8deb60141a1011c42321c3bc738ac4ba40dc554370ba64d6390311609f03eead210fc581870d54ceac9886492f356e80a65925771ac7

Download Submit
memory/2040-132-0x00007FFECBE70000-0x00007FFECC8A6000-memory.dmp

Filesize
10.2MB

Download
memory/2276-139-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2276-138-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2276-137-0x0000000000400000-0x000000000044A000-memory.dmp

Filesize
296KB

Download
memory/2276-148-0x0000000074650000-0x0000000074C01000-memory.dmp

Filesize
5.7MB

Download
memory/2276-149-0x0000000074650000-0x0000000074C01000-memory.dmp

Filesize
5.7MB

Download
memory/3964-147-0x00007FFECBE70000-0x00007FFECC8A6000-memory.dmp

Filesize
10.2MB

Download
memory/4884-136-0x00007FFECBE70000-0x00007FFECC8A6000-memory.dmp

Filesize
10.2MB

Download