c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e

General

Target

c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe
Size

105KB
MD5

92c535addeff7ecac919e373556bfb79
SHA1

a50acb99696bd4ddc1556610f3d0427188572056
SHA256

c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e
SHA512

8acc0fbbfa89f85d7a81e8f60faad0734dfe5e7a48d9ea14904143dfc5e5ab3a6ead840aad03137299b93d177bf6fd15632aae02713b2bf8d3a14959d1a849f7
SSDEEP

1536:vJzZEdih8l1KrHiujC0MGyzGWfLTO368NVrVwR5b29S/S9f0SInJP:RzZEdih8l1qHi+jgLRG+h2wnSInJ

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 2 IoCs

Processes:

Winlogon.exeWinlogon.exe

pid process

1448 Winlogon.exe
3944 Winlogon.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

3520 netsh.exe

pid	process
1448	Winlogon.exe
3944	Winlogon.exe

pid	process
3520	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe

Drops startup file 2 IoCs

Processes:

Winlogon.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\27501c16f97ef83b27996be6844bc1a0.exe	Winlogon.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\27501c16f97ef83b27996be6844bc1a0.exe	Winlogon.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exeWinlogon.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\zHDMdBkDZC = "C:\\Users\\Admin\\AppData\\Roaming\\EkZQTmNeLd\\CaSfYAGrKE.exe"	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\27501c16f97ef83b27996be6844bc1a0 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Winlogon.exe\" .."	Winlogon.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\27501c16f97ef83b27996be6844bc1a0 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\Winlogon.exe\" .."	Winlogon.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exeWinlogon.exe

description	pid	process	target process
PID 2084 set thread context of 1088	2084	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe
PID 1448 set thread context of 3944	1448	Winlogon.exe	Winlogon.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe

pid	process
1088	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe
1088	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exeWinlogon.exe

description	pid	process
Token: SeDebugPrivilege	1088	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe
Token: SeDebugPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe
Token: 33	3944	Winlogon.exe
Token: SeIncBasePriorityPrivilege	3944	Winlogon.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exec67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exeWinlogon.exeWinlogon.exe

description	pid	process	target process
PID 2084 wrote to memory of 1088	2084	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe
PID 2084 wrote to memory of 1088	2084	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe
PID 2084 wrote to memory of 1088	2084	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe
PID 2084 wrote to memory of 1088	2084	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe
PID 2084 wrote to memory of 1088	2084	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe
PID 2084 wrote to memory of 1088	2084	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe
PID 2084 wrote to memory of 1088	2084	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe
PID 2084 wrote to memory of 1088	2084	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe
PID 1088 wrote to memory of 1448	1088	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe	Winlogon.exe
PID 1088 wrote to memory of 1448	1088	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe	Winlogon.exe
PID 1088 wrote to memory of 1448	1088	c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe	Winlogon.exe
PID 1448 wrote to memory of 3944	1448	Winlogon.exe	Winlogon.exe
PID 1448 wrote to memory of 3944	1448	Winlogon.exe	Winlogon.exe
PID 1448 wrote to memory of 3944	1448	Winlogon.exe	Winlogon.exe
PID 1448 wrote to memory of 3944	1448	Winlogon.exe	Winlogon.exe
PID 1448 wrote to memory of 3944	1448	Winlogon.exe	Winlogon.exe
PID 1448 wrote to memory of 3944	1448	Winlogon.exe	Winlogon.exe
PID 1448 wrote to memory of 3944	1448	Winlogon.exe	Winlogon.exe
PID 1448 wrote to memory of 3944	1448	Winlogon.exe	Winlogon.exe
PID 3944 wrote to memory of 3520	3944	Winlogon.exe	netsh.exe
PID 3944 wrote to memory of 3520	3944	Winlogon.exe	netsh.exe
PID 3944 wrote to memory of 3520	3944	Winlogon.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe
"C:\Users\Admin\AppData\Local\Temp\c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2084

C:\Users\Admin\AppData\Local\Temp\c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe
"C:\Users\Admin\AppData\Local\Temp\c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e.exe"
2⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1088

C:\Users\Admin\AppData\Local\Temp\Winlogon.exe
"C:\Users\Admin\AppData\Local\Temp\Winlogon.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1448

C:\Users\Admin\AppData\Local\Temp\Winlogon.exe
"C:\Users\Admin\AppData\Local\Temp\Winlogon.exe"
4⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3944

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Winlogon.exe" "Winlogon.exe" ENABLE
5⤵
- Modifies Windows Firewall
PID:3520

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Winlogon.exe.log
Filesize
507B

MD5
76ffb2f33cb32ade8fc862a67599e9d8

SHA1
920cc4ab75b36d2f9f6e979b74db568973c49130

SHA256
f1a3724670e3379318ec9c73f6f39058cab0ab013ba3cd90c047c3d701362310

SHA512
f33502c2e1bb30c05359bfc6819ca934642a1e01874e3060349127d792694d56ad22fccd6c9477b8ee50d66db35785779324273f509576b48b7f85577e001b4e

Download Submit
C:\Users\Admin\AppData\Local\Temp\Winlogon.exe
Filesize
105KB

MD5
92c535addeff7ecac919e373556bfb79

SHA1
a50acb99696bd4ddc1556610f3d0427188572056

SHA256
c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e

SHA512
8acc0fbbfa89f85d7a81e8f60faad0734dfe5e7a48d9ea14904143dfc5e5ab3a6ead840aad03137299b93d177bf6fd15632aae02713b2bf8d3a14959d1a849f7

Download Submit
C:\Users\Admin\AppData\Local\Temp\Winlogon.exe
Filesize
105KB

MD5
92c535addeff7ecac919e373556bfb79

SHA1
a50acb99696bd4ddc1556610f3d0427188572056

SHA256
c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e

SHA512
8acc0fbbfa89f85d7a81e8f60faad0734dfe5e7a48d9ea14904143dfc5e5ab3a6ead840aad03137299b93d177bf6fd15632aae02713b2bf8d3a14959d1a849f7

Download Submit
C:\Users\Admin\AppData\Local\Temp\Winlogon.exe
Filesize
105KB

MD5
92c535addeff7ecac919e373556bfb79

SHA1
a50acb99696bd4ddc1556610f3d0427188572056

SHA256
c67670460262b6989bf0c63768bbb7be30286c3ce652d699831eb0b934d5bd4e

SHA512
8acc0fbbfa89f85d7a81e8f60faad0734dfe5e7a48d9ea14904143dfc5e5ab3a6ead840aad03137299b93d177bf6fd15632aae02713b2bf8d3a14959d1a849f7

Download Submit
memory/1088-136-0x0000000000000000-mapping.dmp

Download
memory/1088-137-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1448-138-0x0000000000000000-mapping.dmp

Download
memory/2084-135-0x0000000005050000-0x00000000050EC000-memory.dmp

Filesize
624KB

Download
memory/2084-132-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2084-134-0x0000000004950000-0x00000000049E2000-memory.dmp

Filesize
584KB

Download
memory/2084-133-0x0000000004AA0000-0x0000000005044000-memory.dmp

Filesize
5.6MB

Download
memory/3520-145-0x0000000000000000-mapping.dmp

Download
memory/3944-141-0x0000000000000000-mapping.dmp

Download
memory/3944-146-0x0000000005590000-0x000000000559A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads