87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df

General

Target

87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe
Size

71KB
MD5

e82c6923212d107c6bc9bd739e6def9d
SHA1

efa231fadce5c2b54adc50291851593add137ed8
SHA256

87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df
SHA512

3e47f9c317299f705dc46e3759bb68c1a2b811318272fe00d1681f50b1e21b32aba1fc01f1640165c35f3411d799dd78187ee9df1aa3ab0b73afe3f64af46d0f
SSDEEP

1536:1teqKDlXvCDB04f5Gn/L8FlADNt3d1Hw8slga:Olg35GTslA5t3/w8E

Score

10^/10

evasion persistence trojan

Malware Config

Signatures

Windows security bypass 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

oucvigif-ogum.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	oucvigif-ogum.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600"	oucvigif-ogum.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	oucvigif-ogum.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "25600"	oucvigif-ogum.exe

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

oucvigif-ogum.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4748505A-5247-4643-4748-505A52474643}	oucvigif-ogum.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4748505A-5247-4643-4748-505A52474643}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	oucvigif-ogum.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4748505A-5247-4643-4748-505A52474643}\IsInstalled = "1"	oucvigif-ogum.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{4748505A-5247-4643-4748-505A52474643}\StubPath = "C:\\Windows\\system32\\pkeapiv.exe"	oucvigif-ogum.exe

Sets file execution options in registry 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

oucvigif-ogum.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a"	oucvigif-ogum.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\ouxxefin.exe"	oucvigif-ogum.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe	oucvigif-ogum.exe

Executes dropped EXE 2 IoCs

Processes:

oucvigif-ogum.exeoucvigif-ogum.exe

pid process

3068 oucvigif-ogum.exe
2648 oucvigif-ogum.exe

Loads dropped DLL 3 IoCs

Processes:

87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exeoucvigif-ogum.exe

pid	process
2200	87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe
2200	87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe
3068	oucvigif-ogum.exe

Windows security modification 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

oucvigif-ogum.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "25600"	oucvigif-ogum.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600"	oucvigif-ogum.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600"	oucvigif-ogum.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600"	oucvigif-ogum.exe

Modifies WinLogon 2 TTPs 5 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

oucvigif-ogum.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}	oucvigif-ogum.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify	oucvigif-ogum.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a"	oucvigif-ogum.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\arnekif-eadoab.dll"	oucvigif-ogum.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup"	oucvigif-ogum.exe

Drops file in System32 directory 9 IoCs

Processes:

oucvigif-ogum.exe87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\oucvigif-ogum.exe	oucvigif-ogum.exe
File opened for modification	C:\Windows\SysWOW64\oucvigif-ogum.exe	87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe
File created	C:\Windows\SysWOW64\oucvigif-ogum.exe	87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe
File opened for modification	C:\Windows\SysWOW64\pkeapiv.exe	oucvigif-ogum.exe
File opened for modification	C:\Windows\SysWOW64\arnekif-eadoab.dll	oucvigif-ogum.exe
File created	C:\Windows\SysWOW64\arnekif-eadoab.dll	oucvigif-ogum.exe
File opened for modification	C:\Windows\SysWOW64\ouxxefin.exe	oucvigif-ogum.exe
File created	C:\Windows\SysWOW64\ouxxefin.exe	oucvigif-ogum.exe
File created	C:\Windows\SysWOW64\pkeapiv.exe	oucvigif-ogum.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

oucvigif-ogum.exeoucvigif-ogum.exe

pid	process
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
2648	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe
3068	oucvigif-ogum.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exeoucvigif-ogum.exe

description	pid	process
Token: SeDebugPrivilege	2200	87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe
Token: SeDebugPrivilege	3068	oucvigif-ogum.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exeoucvigif-ogum.exe

description	pid	process	target process
PID 2200 wrote to memory of 3068	2200	87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe	oucvigif-ogum.exe
PID 2200 wrote to memory of 3068	2200	87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe	oucvigif-ogum.exe
PID 2200 wrote to memory of 3068	2200	87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe	oucvigif-ogum.exe
PID 2200 wrote to memory of 3068	2200	87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe	oucvigif-ogum.exe
PID 3068 wrote to memory of 436	3068	oucvigif-ogum.exe	winlogon.exe
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 2648	3068	oucvigif-ogum.exe	oucvigif-ogum.exe
PID 3068 wrote to memory of 2648	3068	oucvigif-ogum.exe	oucvigif-ogum.exe
PID 3068 wrote to memory of 2648	3068	oucvigif-ogum.exe	oucvigif-ogum.exe
PID 3068 wrote to memory of 2648	3068	oucvigif-ogum.exe	oucvigif-ogum.exe
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE
PID 3068 wrote to memory of 1184	3068	oucvigif-ogum.exe	Explorer.EXE

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:436

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1184

C:\Users\Admin\AppData\Local\Temp\87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe
"C:\Users\Admin\AppData\Local\Temp\87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe"
2⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2200

C:\Windows\SysWOW64\oucvigif-ogum.exe
"C:\Windows\system32\oucvigif-ogum.exe"
3⤵
- Windows security bypass
- Modifies Installed Components in the registry
- Sets file execution options in registry
- Executes dropped EXE
- Loads dropped DLL
- Windows security modification
- Modifies WinLogon
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3068

C:\Windows\SysWOW64\oucvigif-ogum.exe
--k33p
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:2648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

3

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

3

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\arnekif-eadoab.dll

Filesize
5KB

MD5
f37b21c00fd81bd93c89ce741a88f183

SHA1
b2796500597c68e2f5638e1101b46eaf32676c1c

SHA256
76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0

SHA512
252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

Download Submit
C:\Windows\SysWOW64\ouxxefin.exe

Filesize
74KB

MD5
0c1cb2bbebc7e6b16cba8a6d596d37be

SHA1
a9548eea05ba5526789b9d830844e7a913799ea1

SHA256
be0239b03b4763e251370335db235ecff95b18a5446024f06739efceae44d9b2

SHA512
81556163e41355d7e9567ffd48b6079ecd693f6a5402a6f0e347094d3d88fd72d0f38aeee79c03edc4dc3f96b7c2066f5b5f3eb221c75ad1baceffb1e40660c5

Download Submit
C:\Windows\SysWOW64\pkeapiv.exe

Filesize
73KB

MD5
c7b787d386dab9c8dcf950d328454067

SHA1
368992fbbcd03a0d76f1880040279fe3db0542aa

SHA256
cdd6fff7b21eeb86fc1f9c0786a82043c5b5a2b7106647b020504f89a7f13101

SHA512
5033f5e87a01fa15e01c87baff985eef708187cafcf01ebefe9fff2ef4cda26cd90f6726165315dcba5af8164d37e1087ede7d7690c817463a868f0db64d267b

Download Submit
\Windows\SysWOW64\oucvigif-ogum.exe

Filesize
71KB

MD5
e82c6923212d107c6bc9bd739e6def9d

SHA1
efa231fadce5c2b54adc50291851593add137ed8

SHA256
87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df

SHA512
3e47f9c317299f705dc46e3759bb68c1a2b811318272fe00d1681f50b1e21b32aba1fc01f1640165c35f3411d799dd78187ee9df1aa3ab0b73afe3f64af46d0f

Download Submit
memory/2200-10-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2648-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3068-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads