b564f60fe6aa3c42836ce4bcad1c111532fa9381552af1cf07432a35325536e5

General

Target

xzxz/winoeev.exe
Size

324KB
MD5

81bf96b5d25b56432ebb295d4488d032
SHA1

31abd9f36f2f390716f57aa3efaa787da510eb69
SHA256

0190d27c34cd33b9c688c7adb9634a94ef5adb9a6ae380963a1a41b26b42fc7e
SHA512

55ec4fbfed0b117279ce9461cdab43b5a390fa85579e707cd4b3d99cfcec5c5210d89a8f07cb76876c899bd0ccf89bd169010d3643e6ab0d51e6b6047372e5d2
SSDEEP

6144:O11c1XQEcGONpL2RxPu9bf8scBV+UdvrEFp7hKAwF:Os1XQbGGLexPu9bf8scBjvrEH7zQ

Score

10^/10

evasion persistence trojan upx

Malware Config

Signatures

Modifies Windows Defender Real-time Protection settings 3 TTPs 3 IoCs

evasion trojan

Modify Registry

T1112

Modify Existing Service

T1031

Disabling Security Tools

T1089

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	winoeev.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	winoeev.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	winoeev.exe

Windows security bypass 2 TTPs 6 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	winoeev.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	winoeev.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	winoeev.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	winoeev.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	winoeev.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	winoeev.exe

Modifies AppInit DLL entries 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

ACProtect 1.3x - 1.4x DLL software 2 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral6/files/0x000500000001a560-121.dat	acprotect
behavioral6/files/0x000500000001a560-126.dat	acprotect

Loads dropped DLL 1 IoCs

pid	Process
4300	winoeev.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral6/files/0x000500000001a560-121.dat	upx
behavioral6/memory/4300-125-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral6/files/0x000500000001a560-126.dat	upx
behavioral6/memory/4300-135-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral6/memory/4300-140-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral6/memory/4300-144-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Windows security modification 2 TTPs 7 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AutoUpdateDisableNotify = "1"	winoeev.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	winoeev.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	winoeev.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesOverride = "1"	winoeev.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	winoeev.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	winoeev.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	winoeev.exe

Enumerates connected drives 3 TTPs 1 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)	\??\e:	winoeev.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files\Common Files\System\symsrv.dll	winoeev.exe
File created	\??\c:\program files\common files\system\symsrv.dll.000	winoeev.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe
4300	winoeev.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4300	winoeev.exe

C:\Users\Admin\AppData\Local\Temp\xzxz\winoeev.exe
"C:\Users\Admin\AppData\Local\Temp\xzxz\winoeev.exe"
1⤵
- Modifies Windows Defender Real-time Protection settings
- Windows security bypass
- Loads dropped DLL
- Windows security modification
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4300

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

Disabling Security Tools

Modify Registry

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
\Program Files\Common Files\System\symsrv.dll

Filesize
67KB

MD5
7574cf2c64f35161ab1292e2f532aabf

SHA1
14ba3fa927a06224dfe587014299e834def4644f

SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085

SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab

Download Submit
memory/4300-125-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4300-134-0x0000000000400000-0x00000000004EC000-memory.dmp

Filesize
944KB

Download
memory/4300-135-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4300-140-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4300-144-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads