95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2

General

Target

95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe
Size

70KB
MD5

7332ce6eaa4655aa0a394daa6aacd65d
SHA1

262c580ab7f16660336cd81c19314de7fff0314a
SHA256

95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2
SHA512

b996bec487175fb9bfae4368f6db70030ad160174a98bbb03d99a4a10e06db05a450d9d0a06d37160518ca4f50f47d14f6a8d6a679ac060c9f9bc8b34255b6c7
SSDEEP

1536:1teqKDlXvCDB04f5Gn/L8FlADNt3d1Hw8sle:Olg35GTslA5t3/w8N

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:

ohlosop.exe

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

Modifies Installed Components in the registry 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ohlosop.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{55485251-4b4a-4350-5548-52514B4A4350}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	ohlosop.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{55485251-4b4a-4350-5548-52514B4A4350}\IsInstalled = "1"	ohlosop.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{55485251-4b4a-4350-5548-52514B4A4350}\StubPath = "C:\\Windows\\system32\\anmikoog-ded.exe"	ohlosop.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Active Setup\Installed Components\{55485251-4b4a-4350-5548-52514B4A4350}	ohlosop.exe

Sets file execution options in registry 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ohlosop.exe

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

Executes dropped EXE 2 IoCs

Processes:

ohlosop.exeohlosop.exe

pid process

2792 ohlosop.exe
2708 ohlosop.exe

Loads dropped DLL 3 IoCs

Processes:

95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exeohlosop.exe

pid	process
1580	95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe
1580	95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe
2792	ohlosop.exe

Windows security modification 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

ohlosop.exe

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

Modifies WinLogon 2 TTPs 5 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

ohlosop.exe

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

Drops file in System32 directory 9 IoCs

Processes:

ohlosop.exe95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\anmikoog-ded.exe	ohlosop.exe
File opened for modification	C:\Windows\SysWOW64\oxpimin.exe	ohlosop.exe
File created	C:\Windows\SysWOW64\oxpimin.exe	ohlosop.exe
File created	C:\Windows\SysWOW64\anmikoog-ded.exe	ohlosop.exe
File opened for modification	C:\Windows\SysWOW64\ntoogep.dll	ohlosop.exe
File created	C:\Windows\SysWOW64\ntoogep.dll	ohlosop.exe
File opened for modification	C:\Windows\SysWOW64\ohlosop.exe	ohlosop.exe
File opened for modification	C:\Windows\SysWOW64\ohlosop.exe	95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe
File created	C:\Windows\SysWOW64\ohlosop.exe	95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

ohlosop.exeohlosop.exe

pid	process
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2708	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe
2792	ohlosop.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exeohlosop.exe

description	pid	process
Token: SeDebugPrivilege	1580	95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe
Token: SeDebugPrivilege	2792	ohlosop.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exeohlosop.exe

description	pid	process	target process
PID 1580 wrote to memory of 2792	1580	95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe	ohlosop.exe
PID 1580 wrote to memory of 2792	1580	95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe	ohlosop.exe
PID 1580 wrote to memory of 2792	1580	95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe	ohlosop.exe
PID 1580 wrote to memory of 2792	1580	95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe	ohlosop.exe
PID 2792 wrote to memory of 432	2792	ohlosop.exe	winlogon.exe
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 2708	2792	ohlosop.exe	ohlosop.exe
PID 2792 wrote to memory of 2708	2792	ohlosop.exe	ohlosop.exe
PID 2792 wrote to memory of 2708	2792	ohlosop.exe	ohlosop.exe
PID 2792 wrote to memory of 2708	2792	ohlosop.exe	ohlosop.exe
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE
PID 2792 wrote to memory of 1192	2792	ohlosop.exe	Explorer.EXE

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:432

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1192

C:\Users\Admin\AppData\Local\Temp\95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe
"C:\Users\Admin\AppData\Local\Temp\95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe"
2⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1580

C:\Windows\SysWOW64\ohlosop.exe
"C:\Windows\system32\ohlosop.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:2792

C:\Windows\SysWOW64\ohlosop.exe
--k33p
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:2708

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\anmikoog-ded.exe

Filesize
73KB

MD5
f2b5252e069f2f1f1ab1c11182a5e136

SHA1
1ca87c35a0abd60652c58b071d811d5aed877828

SHA256
2c313248d05d82da0ff8d41f9af4e816a706539ac886a2f1bcd9254a492f47c3

SHA512
aafd37c5b245963951c908a25f35c3d0be2b50038c8cdb8532f4407dfa6b0a4c0582f1c7c3f8a8d6a7c48a611268e62f0191d3630d7eb23550692c75d3c1e229

Download Submit
C:\Windows\SysWOW64\ntoogep.dll

Filesize
5KB

MD5
f37b21c00fd81bd93c89ce741a88f183

SHA1
b2796500597c68e2f5638e1101b46eaf32676c1c

SHA256
76cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0

SHA512
252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4

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

Filesize
70KB

MD5
7332ce6eaa4655aa0a394daa6aacd65d

SHA1
262c580ab7f16660336cd81c19314de7fff0314a

SHA256
95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2

SHA512
b996bec487175fb9bfae4368f6db70030ad160174a98bbb03d99a4a10e06db05a450d9d0a06d37160518ca4f50f47d14f6a8d6a679ac060c9f9bc8b34255b6c7

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

Filesize
74KB

MD5
3824505c906e5a138e2c41d8445fbfee

SHA1
0cd56c506ad168674d87a8b18c4dae7f95e80685

SHA256
53cbf5d989b21246ad1c70ca6b4cc5221011e050fe04c02479802f7dde01d743

SHA512
d55723d18a2f00f7013a52524e052deb7dfa1692fb4892e70a143f23fb5e8c1774767a63853a36cb3725105861bb5973eb14ca7b41fbbf79048f66e407b23008

Download Submit
memory/1580-10-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2708-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2792-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads