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\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
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "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\{4F41494C-5643-4e59-4F41-494C56434e59}	oucvigif-ogum.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4F41494C-5643-4e59-4F41-494C56434e59}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	oucvigif-ogum.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4F41494C-5643-4e59-4F41-494C56434e59}\IsInstalled = "1"	oucvigif-ogum.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4F41494C-5643-4e59-4F41-494C56434e59}\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
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe	oucvigif-ogum.exe
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

Executes dropped EXE 2 IoCs

Processes:

oucvigif-ogum.exeoucvigif-ogum.exe

pid process

2056 oucvigif-ogum.exe
4540 oucvigif-ogum.exe

pid	process
2056	oucvigif-ogum.exe
4540	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\UpdatesDisableNotify = "25600"	oucvigif-ogum.exe
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

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 created	C:\Windows\SysWOW64\pkeapiv.exe	oucvigif-ogum.exe
File opened for modification	C:\Windows\SysWOW64\oucvigif-ogum.exe	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 opened for modification	C:\Windows\SysWOW64\pkeapiv.exe	oucvigif-ogum.exe
File created	C:\Windows\SysWOW64\arnekif-eadoab.dll	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\arnekif-eadoab.dll	oucvigif-ogum.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

oucvigif-ogum.exeoucvigif-ogum.exe

pid	process
4540	oucvigif-ogum.exe
4540	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe
2056	oucvigif-ogum.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exeoucvigif-ogum.exe

description	pid	process
Token: SeDebugPrivilege	4620	87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe
Token: SeDebugPrivilege	2056	oucvigif-ogum.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exeoucvigif-ogum.exe

description	pid	process	target process
PID 4620 wrote to memory of 2056	4620	87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe	oucvigif-ogum.exe
PID 4620 wrote to memory of 2056	4620	87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe	oucvigif-ogum.exe
PID 4620 wrote to memory of 2056	4620	87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe	oucvigif-ogum.exe
PID 2056 wrote to memory of 4540	2056	oucvigif-ogum.exe	oucvigif-ogum.exe
PID 2056 wrote to memory of 4540	2056	oucvigif-ogum.exe	oucvigif-ogum.exe
PID 2056 wrote to memory of 4540	2056	oucvigif-ogum.exe	oucvigif-ogum.exe
PID 2056 wrote to memory of 632	2056	oucvigif-ogum.exe	winlogon.exe
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE
PID 2056 wrote to memory of 3196	2056	oucvigif-ogum.exe	Explorer.EXE

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:632

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3196

C:\Users\Admin\AppData\Local\Temp\87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe
"C:\Users\Admin\AppData\Local\Temp\87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df.exe"
2⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4620

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
- Windows security modification
- Modifies WinLogon
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2056

C:\Windows\SysWOW64\oucvigif-ogum.exe
--k33p
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:4540

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3428 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
1⤵
PID:6036

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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\oucvigif-ogum.exe
Filesize
71KB

MD5
e82c6923212d107c6bc9bd739e6def9d

SHA1
efa231fadce5c2b54adc50291851593add137ed8

SHA256
87fcf769c8bd9fb8a65560d7d7a37b16e18ef4b94ca51918bde227ce92f129df

SHA512
3e47f9c317299f705dc46e3759bb68c1a2b811318272fe00d1681f50b1e21b32aba1fc01f1640165c35f3411d799dd78187ee9df1aa3ab0b73afe3f64af46d0f

Download Submit
C:\Windows\SysWOW64\ouxxefin.exe
Filesize
74KB

MD5
c467f69962d7172d2f19fb6ef357c960

SHA1
5be1bbb2f0d069893b3adcd2cc35e206038da3f2

SHA256
752d1c5572d3b9fef6cd01b869eaba106228c1da034c7b332e9a7deec55213da

SHA512
64d7c21e806865df4c1dd1b4141005db0998eea218fcbd0277910ebc0076ec7bffe4a29a0300a5df1c182b239765276d65664775ef14f92cf3869161f132d1a6

Download Submit
C:\Windows\SysWOW64\pkeapiv.exe
Filesize
73KB

MD5
163d8f2a0d87f09d2ff7454bfb9e33a4

SHA1
754e9d60717c19818ac3eb12c42557ebbb681565

SHA256
f23d370c4b053d56caba8bda2d531f104cf1f8199698c38b90d5b9fa2308bff3

SHA512
c7cb7fca77dc1a5b3ea2b9df74826030b67017c920c46c18d12fb9e4292da9eaec66352715b8d30a58ac58915e8b1baa60523cda50bcc0d1d4c7732a7b19faf9

Download Submit
memory/2056-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4540-51-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4620-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4620-7-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads