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
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{52494A54-4f4f-5658-5249-4A544F4F5658}	ohlosop.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{52494A54-4f4f-5658-5249-4A544F4F5658}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a"	ohlosop.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{52494A54-4f4f-5658-5249-4A544F4F5658}\IsInstalled = "1"	ohlosop.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{52494A54-4f4f-5658-5249-4A544F4F5658}\StubPath = "C:\\Windows\\system32\\anmikoog-ded.exe"	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
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe	ohlosop.exe
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

Executes dropped EXE 2 IoCs

Processes:

ohlosop.exeohlosop.exe

pid process

1148 ohlosop.exe
2624 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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup"	ohlosop.exe
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

Drops file in System32 directory 9 IoCs

Processes:

95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exeohlosop.exe

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

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

ohlosop.exeohlosop.exe

pid	process
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
2624	ohlosop.exe
2624	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe
1148	ohlosop.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exeohlosop.exe

description	pid	process
Token: SeDebugPrivilege	4544	95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe
Token: SeDebugPrivilege	1148	ohlosop.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exeohlosop.exe

description	pid	process	target process
PID 4544 wrote to memory of 1148	4544	95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe	ohlosop.exe
PID 4544 wrote to memory of 1148	4544	95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe	ohlosop.exe
PID 4544 wrote to memory of 1148	4544	95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe	ohlosop.exe
PID 1148 wrote to memory of 612	1148	ohlosop.exe	winlogon.exe
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 2624	1148	ohlosop.exe	ohlosop.exe
PID 1148 wrote to memory of 2624	1148	ohlosop.exe	ohlosop.exe
PID 1148 wrote to memory of 2624	1148	ohlosop.exe	ohlosop.exe
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE
PID 1148 wrote to memory of 3540	1148	ohlosop.exe	Explorer.EXE

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:612

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3540

C:\Users\Admin\AppData\Local\Temp\95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe
"C:\Users\Admin\AppData\Local\Temp\95b1591c5f20ac9bd9be837dfb94c6f8b91710eccc8e52e00976fb54802c17d2.exe"
2⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4544

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
- Windows security modification
- Modifies WinLogon
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1148

C:\Windows\SysWOW64\ohlosop.exe
--k33p
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:2624

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
a23b1603005c958532730e1662949640

SHA1
89999ab83fff2ea8b1c08f1acdf48212b69a1b48

SHA256
b33d0d3edc60e4139ad0cbe4b03d255880afb8ec60c85a0264b0f1a2a6c491d8

SHA512
b0b636753042d2286105b9ddfc6106553b75097d80a45975c2feed8d2008cc4abe61069490b3b3c1fc98dbba8b51540aef580604b80f643b007d3d7eb086b8e6

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
1d31a02c05703d2b34d2ea19a4baaa0e

SHA1
8f9b1f3a0d4e1a4866edff27a43cf00c66f9bc81

SHA256
0ea0e1e875c7f18b78b96f9bcebcc444ca6a66123bd2e46812f8314ae8424f63

SHA512
94d1b5abff7f0fa9759aa68c05c5e8bca3ba4e69c66bcdec4e1d60ad214a7561c27cc521ce114f15a51b80d28103ffc1ce7724c5d67b14454f32725c66baac8e

Download Submit
memory/1148-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2624-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4544-5-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads