c3f8265bfcc61ef328a8f776318d74e588873047f51e0dc8e445c1f6d4334f30

General

Target

sphinx_1.0.1.0.vir.exe
Size

1.5MB
MD5

36269d4e8402c65c5f46aef0313db9c3
SHA1

c884ba2f073a775a69d03f6342804c3c4f6abb5d
SHA256

c3f8265bfcc61ef328a8f776318d74e588873047f51e0dc8e445c1f6d4334f30
SHA512

13de42090c9829056466dc424c0d26b43fa48731b4fac7519f6e025f0599ba74c562eb389faf5c4422e13e313948d6c45fe1844a45f35b9fbc9c754eac7e40ea

Score

8^/10

upx persistence

Malware Config

Signatures

Suspicious behavior: EnumeratesProcesses 43 IoCs

Processes:

sphinx_1.0.1.0.vir.exeexplorer.exeymmok.exeexplorer.execmd.exe

pid	process
1356	sphinx_1.0.1.0.vir.exe
1356	sphinx_1.0.1.0.vir.exe
1356	sphinx_1.0.1.0.vir.exe
1420	explorer.exe
1420	explorer.exe
1076	ymmok.exe
1356	sphinx_1.0.1.0.vir.exe
1356	sphinx_1.0.1.0.vir.exe
1420	explorer.exe
1420	explorer.exe
1444	explorer.exe
1444	explorer.exe
1076	ymmok.exe
1828	cmd.exe
1828	cmd.exe
1828	cmd.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe
1076	ymmok.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

sphinx_1.0.1.0.vir.exe

description	pid	process	target process
PID 1356 set thread context of 1420	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 set thread context of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 set thread context of 1828	1356	sphinx_1.0.1.0.vir.exe	cmd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ymmok.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\Currentversion\Run	ymmok.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Windows\CurrentVersion\Run\{115CB767-D966-AFDA-A7D6-50F1A1767BB4} = "C:\\Users\\Admin\\AppData\\Roaming\\Vimo\\ymmok.exe"	ymmok.exe

Suspicious use of WriteProcessMemory 90 IoCs

Processes:

sphinx_1.0.1.0.vir.exeymmok.exe

description	pid	process	target process
PID 1356 wrote to memory of 1420	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1420	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1420	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1420	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1420	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1420	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1420	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1420	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1444	1356	sphinx_1.0.1.0.vir.exe	explorer.exe
PID 1356 wrote to memory of 1076	1356	sphinx_1.0.1.0.vir.exe	ymmok.exe
PID 1356 wrote to memory of 1076	1356	sphinx_1.0.1.0.vir.exe	ymmok.exe
PID 1356 wrote to memory of 1076	1356	sphinx_1.0.1.0.vir.exe	ymmok.exe
PID 1356 wrote to memory of 1076	1356	sphinx_1.0.1.0.vir.exe	ymmok.exe
PID 1076 wrote to memory of 1128	1076	ymmok.exe	taskhost.exe
PID 1076 wrote to memory of 1128	1076	ymmok.exe	taskhost.exe
PID 1076 wrote to memory of 1128	1076	ymmok.exe	taskhost.exe
PID 1076 wrote to memory of 1128	1076	ymmok.exe	taskhost.exe
PID 1076 wrote to memory of 1128	1076	ymmok.exe	taskhost.exe
PID 1076 wrote to memory of 1256	1076	ymmok.exe	Dwm.exe
PID 1076 wrote to memory of 1256	1076	ymmok.exe	Dwm.exe
PID 1076 wrote to memory of 1256	1076	ymmok.exe	Dwm.exe
PID 1076 wrote to memory of 1256	1076	ymmok.exe	Dwm.exe
PID 1076 wrote to memory of 1256	1076	ymmok.exe	Dwm.exe
PID 1076 wrote to memory of 1324	1076	ymmok.exe	Explorer.EXE
PID 1076 wrote to memory of 1324	1076	ymmok.exe	Explorer.EXE
PID 1076 wrote to memory of 1324	1076	ymmok.exe	Explorer.EXE
PID 1076 wrote to memory of 1324	1076	ymmok.exe	Explorer.EXE
PID 1076 wrote to memory of 1324	1076	ymmok.exe	Explorer.EXE
PID 1076 wrote to memory of 1356	1076	ymmok.exe	sphinx_1.0.1.0.vir.exe
PID 1076 wrote to memory of 1356	1076	ymmok.exe	sphinx_1.0.1.0.vir.exe
PID 1076 wrote to memory of 1356	1076	ymmok.exe	sphinx_1.0.1.0.vir.exe
PID 1076 wrote to memory of 1356	1076	ymmok.exe	sphinx_1.0.1.0.vir.exe
PID 1076 wrote to memory of 1356	1076	ymmok.exe	sphinx_1.0.1.0.vir.exe
PID 1076 wrote to memory of 1420	1076	ymmok.exe	explorer.exe
PID 1076 wrote to memory of 1420	1076	ymmok.exe	explorer.exe
PID 1076 wrote to memory of 1420	1076	ymmok.exe	explorer.exe
PID 1076 wrote to memory of 1420	1076	ymmok.exe	explorer.exe
PID 1076 wrote to memory of 1420	1076	ymmok.exe	explorer.exe
PID 1076 wrote to memory of 1444	1076	ymmok.exe	explorer.exe
PID 1076 wrote to memory of 1444	1076	ymmok.exe	explorer.exe
PID 1076 wrote to memory of 1444	1076	ymmok.exe	explorer.exe
PID 1076 wrote to memory of 1444	1076	ymmok.exe	explorer.exe
PID 1076 wrote to memory of 1444	1076	ymmok.exe	explorer.exe
PID 1076 wrote to memory of 1512	1076	ymmok.exe	conhost.exe
PID 1076 wrote to memory of 1512	1076	ymmok.exe	conhost.exe
PID 1076 wrote to memory of 1512	1076	ymmok.exe	conhost.exe

Executes dropped EXE 1 IoCs

Processes:

ymmok.exe

pid process

1076 ymmok.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

WinMail.exe

pid process

1640 WinMail.exe

pid	process
1076	ymmok.exe

pid	process
1640	WinMail.exe

NTFS ADS 1 IoCs

Processes:

WinMail.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Local\Microsoft\Windows Mail\Local Folders\Inbox\005626E0-00000001.eml:OECustomProperty	WinMail.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1828 cmd.exe

pid	process
1828	cmd.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

sphinx_1.0.1.0.vir.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Internet Explorer\Privacy	sphinx_1.0.1.0.vir.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-910373003-3952921535-3480519689-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	sphinx_1.0.1.0.vir.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

sphinx_1.0.1.0.vir.exeWinMail.execmd.exe

description	pid	process
Token: SeDebugPrivilege	1356	sphinx_1.0.1.0.vir.exe
Token: SeDebugPrivilege	1356	sphinx_1.0.1.0.vir.exe
Token: SeDebugPrivilege	1356	sphinx_1.0.1.0.vir.exe
Token: SeSecurityPrivilege	1356	sphinx_1.0.1.0.vir.exe
Token: SeManageVolumePrivilege	1640	WinMail.exe
Token: SeDebugPrivilege	1828	cmd.exe
Token: SeDebugPrivilege	1828	cmd.exe
Token: SeDebugPrivilege	1828	cmd.exe

Loads dropped DLL 2 IoCs

Processes:

sphinx_1.0.1.0.vir.exe

pid process

1356 sphinx_1.0.1.0.vir.exe
1356 sphinx_1.0.1.0.vir.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

WinMail.exe

pid process

1640 WinMail.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

WinMail.exe

pid process

1640 WinMail.exe

pid	process
1640	WinMail.exe

pid	process
1640	WinMail.exe

UPX packed file 3 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1420-0-0x0000000000400000-0x00000000007A5000-memory.dmp	upx
behavioral1/memory/1420-2-0x0000000000400000-0x00000000007A5000-memory.dmp	upx
behavioral1/memory/1420-3-0x0000000000400000-0x00000000007A5000-memory.dmp	upx

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1128

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1256

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1324

C:\Users\Admin\AppData\Local\Temp\sphinx_1.0.1.0.vir.exe
"C:\Users\Admin\AppData\Local\Temp\sphinx_1.0.1.0.vir.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- Modifies Internet Explorer settings
- Suspicious use of AdjustPrivilegeToken
- Loads dropped DLL
PID:1356

C:\Windows\SysWOw64\explorer.exe
"C:\Windows\SysWOw64\explorer.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:1420

C:\Windows\SysWOw64\explorer.exe
"C:\Windows\SysWOw64\explorer.exe" socksParentProxy=localhost:9050
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:1444

C:\Users\Admin\AppData\Roaming\Vimo\ymmok.exe
"C:\Users\Admin\AppData\Roaming\Vimo\ymmok.exe"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
- Executes dropped EXE
PID:1076

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp9e7f9409.bat"
3⤵
- Suspicious behavior: EnumeratesProcesses
- Deletes itself
- Suspicious use of AdjustPrivilegeToken
PID:1828

C:\Windows\system32\conhost.exe
\??\C:\Windows\system32\conhost.exe "2064218124-237057423242341038-6147190786954622353041733944313797711361080805"
1⤵
PID:1512

C:\Windows\system32\conhost.exe
\??\C:\Windows\system32\conhost.exe "1939967539-1712629218-15445506331632165210-12037201269703356911501973160902792306"
1⤵
PID:1000

C:\Program Files\Windows Mail\WinMail.exe
"C:\Program Files\Windows Mail\WinMail.exe" -Embedding
1⤵
- Suspicious use of SendNotifyMessage
- NTFS ADS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of FindShellTrayWindow
PID:1640

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:512

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1308

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp9e7f9409.bat

Download Submit
C:\Users\Admin\AppData\Roaming\Vimo\ymmok.exe

Download Submit
C:\Users\Admin\AppData\Roaming\Vimo\ymmok.exe

Download Submit
\Users\Admin\AppData\Roaming\Vimo\ymmok.exe

Download Submit
\Users\Admin\AppData\Roaming\Vimo\ymmok.exe

Download Submit
memory/1076-324-0x0000000000000000-mapping.dmp

Download
memory/1420-301-0x0000000003140000-0x0000000003151000-memory.dmp

Filesize
68KB

Download
memory/1420-3-0x0000000000400000-0x00000000007A5000-memory.dmp

Filesize
3.6MB

Download
memory/1420-8-0x0000000003550000-0x0000000003561000-memory.dmp

Filesize
68KB

Download
memory/1420-9-0x0000000003140000-0x0000000003151000-memory.dmp

Filesize
68KB

Download
memory/1420-406-0x00000000007A34B0-mapping.dmp

Download
memory/1420-302-0x0000000003550000-0x0000000003561000-memory.dmp

Filesize
68KB

Download
memory/1420-303-0x0000000003140000-0x0000000003151000-memory.dmp

Filesize
68KB

Download
memory/1420-0-0x0000000000400000-0x00000000007A5000-memory.dmp

Filesize
3.6MB

Download
memory/1420-1-0x00000000007A34B0-mapping.dmp

Download
memory/1420-2-0x0000000000400000-0x00000000007A5000-memory.dmp

Filesize
3.6MB

Download
memory/1420-7-0x0000000003140000-0x0000000003151000-memory.dmp

Filesize
68KB

Download
memory/1444-4-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1444-5-0x0000000000401130-mapping.dmp

Download
memory/1444-447-0x0000000000401130-mapping.dmp

Download
memory/1444-6-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/1640-409-0x0000000003F30000-0x0000000003F32000-memory.dmp

Filesize
8KB

Download
memory/1640-418-0x00000000045B0000-0x00000000045B2000-memory.dmp

Filesize
8KB

Download
memory/1640-399-0x0000000002550000-0x0000000002552000-memory.dmp

Filesize
8KB

Download
memory/1640-400-0x0000000002570000-0x0000000002572000-memory.dmp

Filesize
8KB

Download
memory/1640-401-0x0000000002560000-0x0000000002562000-memory.dmp

Filesize
8KB

Download
memory/1640-402-0x0000000002570000-0x0000000002572000-memory.dmp

Filesize
8KB

Download
memory/1640-403-0x0000000003BC0000-0x0000000003BC2000-memory.dmp

Filesize
8KB

Download
memory/1640-404-0x0000000003F00000-0x0000000003F02000-memory.dmp

Filesize
8KB

Download
memory/1640-405-0x0000000003F20000-0x0000000003F22000-memory.dmp

Filesize
8KB

Download
memory/1640-394-0x0000000003980000-0x0000000003B80000-memory.dmp

Filesize
2.0MB

Download
memory/1640-407-0x0000000002560000-0x0000000002562000-memory.dmp

Filesize
8KB

Download
memory/1640-393-0x0000000003980000-0x0000000003A80000-memory.dmp

Filesize
1024KB

Download
memory/1640-408-0x0000000003F20000-0x0000000003F22000-memory.dmp

Filesize
8KB

Download
memory/1640-410-0x00000000041C0000-0x00000000041C2000-memory.dmp

Filesize
8KB

Download
memory/1640-411-0x00000000041D0000-0x00000000041D2000-memory.dmp

Filesize
8KB

Download
memory/1640-412-0x00000000041F0000-0x00000000041F2000-memory.dmp

Filesize
8KB

Download
memory/1640-413-0x0000000004290000-0x0000000004292000-memory.dmp

Filesize
8KB

Download
memory/1640-414-0x00000000042A0000-0x00000000042A2000-memory.dmp

Filesize
8KB

Download
memory/1640-415-0x0000000004560000-0x0000000004562000-memory.dmp

Filesize
8KB

Download
memory/1640-416-0x0000000004580000-0x0000000004582000-memory.dmp

Filesize
8KB

Download
memory/1640-417-0x00000000045A0000-0x00000000045A2000-memory.dmp

Filesize
8KB

Download
memory/1640-395-0x0000000003A80000-0x0000000003B80000-memory.dmp

Filesize
1024KB

Download
memory/1640-419-0x00000000045C0000-0x00000000045C2000-memory.dmp

Filesize
8KB

Download
memory/1640-420-0x00000000045D0000-0x00000000045D2000-memory.dmp

Filesize
8KB

Download
memory/1640-421-0x00000000045F0000-0x00000000045F2000-memory.dmp

Filesize
8KB

Download
memory/1640-422-0x0000000004620000-0x0000000004622000-memory.dmp

Filesize
8KB

Download
memory/1640-423-0x0000000004AB0000-0x0000000004AB2000-memory.dmp

Filesize
8KB

Download
memory/1640-424-0x0000000004B60000-0x0000000004B62000-memory.dmp

Filesize
8KB

Download
memory/1640-425-0x0000000004BF0000-0x0000000004BF2000-memory.dmp

Filesize
8KB

Download
memory/1640-426-0x0000000003CC0000-0x0000000003CC2000-memory.dmp

Filesize
8KB

Download
memory/1640-427-0x00000000044C0000-0x00000000044C2000-memory.dmp

Filesize
8KB

Download
memory/1640-428-0x00000000044E0000-0x00000000044E2000-memory.dmp

Filesize
8KB

Download
memory/1640-429-0x00000000044F0000-0x00000000044F2000-memory.dmp

Filesize
8KB

Download
memory/1640-430-0x0000000004500000-0x0000000004502000-memory.dmp

Filesize
8KB

Download
memory/1640-431-0x0000000004510000-0x0000000004512000-memory.dmp

Filesize
8KB

Download
memory/1640-432-0x0000000004520000-0x0000000004522000-memory.dmp

Filesize
8KB

Download
memory/1640-433-0x0000000003980000-0x0000000003A80000-memory.dmp

Filesize
1024KB

Download
memory/1640-435-0x00000000024C0000-0x00000000024D0000-memory.dmp

Filesize
64KB

Download
memory/1640-441-0x0000000001E90000-0x0000000001EA0000-memory.dmp

Filesize
64KB

Download
memory/1640-391-0x0000000003980000-0x0000000003B80000-memory.dmp

Filesize
2.0MB

Download
memory/1640-389-0x0000000003980000-0x0000000003A80000-memory.dmp

Filesize
1024KB

Download
memory/1828-449-0x00000000000A481C-mapping.dmp

Download
memory/1828-448-0x0000000000090000-0x0000000000215000-memory.dmp

Filesize
1.5MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads