sheetrat | 6cc096460d1a737c1870a0c5a18cb01ae32904b746e8c23f6aca8d5715481f5b

Analysis

max time kernel
900s
max time network
903s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260630-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260630-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
04/07/2026, 15:03

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General

Target
ecjp59bzkbjo2tbm.exe
Size 374KB
Sample260704-se718agy5v
SHA256 6cc096460d1a737c1870a0c5a18cb01ae32904b746e8c23f6aca8d5715481f5b
MD5 fee24925a23f09510a681c56e7b57adb
SHA1 6ba8ebe5be0b40b3341bccfa3c8a431e1d8debf4
SHA512 288a38268beeea45deb6935b875a1b873b289ec314d5f9659231076e2ca3455cd4f038afd8038ae9e2891878c810f05897b02db0ccecbf4c2d00d7d7625df562
SSDEEP 6144:No7ISOgfAk2vB5cuVIwVaqrAFY94J7bncQZl6/A6jbK6XFEdj7E5xcm4nb:NoOgI9trEVbncok/E6XFE9R
TLSH
T10D84A5257FA48E00E590257EC97E3609CB12E0F2250263473B4AF7A25D459EEDE2D3DB
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

execution sheetrat persistence trojan

Malware Config

Extracted

Family

sheetrat

Version

portbuddy.dev:42628

Signatures

Family: Sheetrat, NonEuclid rat
Sheetrat aka NonEuclid RAT is a trojan written in C#.
trojan sheetrat

Detects Sheetrat obfuscated V1.8 and higher 2 IoCs

Sheetrat aka NonEuclid RAT is a trojan written in C#.

resource	yara_rule
behavioral2/memory/5828-0-0x00000000003B0000-0x0000000000414000-memory.dmp	family_sheetrat_v4
behavioral2/files/0x000e00000001c5e1-15.dat	family_sheetrat_v4

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\System32\\userinit.exe,C:\\Windows\\wsappx"	ecjp59bzkbjo2tbm.exe

Executes dropped EXE 2 IoCs

pid	Process
6552	svchost.exe
5496	wsappx

Drops file in Windows directory 8 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.exe	wsappx
File created	C:\Windows\wsappx	ecjp59bzkbjo2tbm.exe
File opened for modification	C:\Windows\wsappx	ecjp59bzkbjo2tbm.exe
File created	C:\Windows\svchost.exe	ecjp59bzkbjo2tbm.exe
File opened for modification	C:\Windows\svchost.exe	svchost.exe
File opened for modification	C:\Windows\wsappx	wsappx
File opened for modification	C:\Windows\svchost.exe	ecjp59bzkbjo2tbm.exe
File opened for modification	C:\Windows\wsappx	svchost.exe

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
6492	schtasks.exe
5868	schtasks.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	5828	ecjp59bzkbjo2tbm.exe
Token: SeDebugPrivilege	6552	svchost.exe
Token: SeDebugPrivilege	5496	wsappx
Token: SeIncBasePriorityPrivilege	5496	wsappx

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5828 wrote to memory of 5420	5828	ecjp59bzkbjo2tbm.exe	91
PID 5828 wrote to memory of 2128	5828	ecjp59bzkbjo2tbm.exe	92
PID 2128 wrote to memory of 6492	2128	cmd.exe	95
PID 5828 wrote to memory of 6572	5828	ecjp59bzkbjo2tbm.exe	96
PID 6572 wrote to memory of 5868	6572	cmd.exe	98

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\ecjp59bzkbjo2tbm.exe
"C:\Users\Admin\AppData\Local\Temp\ecjp59bzkbjo2tbm.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5828
- C:\Windows\SYSTEM32\CMD.exe
  "CMD" netsh advfirewall firewall add rule name="0!eb&JEm&e:(&i" dir=in action=allow program="C:\Windows\wsappx" enable=yes & exit
  2⤵
  PID:5420
- C:\Windows\SYSTEM32\cmd.exe
  "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "Microsoft\Windows\WAppCrashNvTew" /tr "C:\Windows\wsappx" /RL HIGHEST & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2128
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc minute /mo 1 /tn "Microsoft\Windows\WAppCrashNvTew" /tr "C:\Windows\wsappx" /RL HIGHEST
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:6492
- C:\Windows\SYSTEM32\cmd.exe
  "cmd" /c schtasks /create /f /sc minute /mo 30 /tn "Microsoft\MachineCore" /tr "C:\Windows\svchost.exe" /RL HIGHEST & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:6572
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc minute /mo 30 /tn "Microsoft\MachineCore" /tr "C:\Windows\svchost.exe" /RL HIGHEST
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:5868

C:\Windows\svchost.exe
C:\Windows\svchost.exe
1⤵
- Executes dropped EXE
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:6552

C:\Windows\wsappx
"C:\Windows\wsappx"
1⤵
- Executes dropped EXE
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:5496

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k GPSvcGroup
1⤵
PID:1152

C:\Windows\System32\SecurityHealthHost.exe
\\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
1⤵
PID:4076

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

wsappx

Path C:\Windows\wsappx
Size 374KB
SHA256 6cc096460d1a737c1870a0c5a18cb01ae32904b746e8c23f6aca8d5715481f5b
MD5 fee24925a23f09510a681c56e7b57adb
SHA1 6ba8ebe5be0b40b3341bccfa3c8a431e1d8debf4
SHA512 288a38268beeea45deb6935b875a1b873b289ec314d5f9659231076e2ca3455cd4f038afd8038ae9e2891878c810f05897b02db0ccecbf4c2d00d7d7625df562
SSDEEP 6144:No7ISOgfAk2vB5cuVIwVaqrAFY94J7bncQZl6/A6jbK6XFEdj7E5xcm4nb:NoOgI9trEVbncok/E6XFE9R
TLSH
T10D84A5257FA48E00E590257EC97E3609CB12E0F2250263473B4AF7A25D459EEDE2D3DB
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/5828-6-0x00007FFB732F0000-0x00007FFB73C94000-memory.dmp

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memory/5828-2-0x00007FFB732F0000-0x00007FFB73C94000-memory.dmp

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memory/5828-3-0x00007FFB732F0000-0x00007FFB73C94000-memory.dmp

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memory/5828-4-0x00007FFB732F0000-0x00007FFB73C94000-memory.dmp

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memory/5828-5-0x00007FFB732F0000-0x00007FFB73C94000-memory.dmp

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memory/5828-0-0x00000000003B0000-0x0000000000414000-memory.dmp

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memory/5828-7-0x00007FFB732F0000-0x00007FFB73C94000-memory.dmp

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memory/5828-8-0x00007FFB732F0000-0x00007FFB73C94000-memory.dmp

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memory/5828-9-0x00007FFB732F0000-0x00007FFB73C94000-memory.dmp

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memory/5828-10-0x00007FFB732F0000-0x00007FFB73C94000-memory.dmp

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memory/5828-1-0x00007FFB7347F000-0x00007FFB73480000-memory.dmp

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memory/5828-63-0x00007FFB732F0000-0x00007FFB73C94000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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