3675db37a5c08fdd062e3b5aae428ca2346375c05ca2ab252ef8403d2ce655e9

General

Target

citadel_1.3.3.4.vir.exe
Size

207KB
MD5

8cbb6a23a4866968bb333f862e23b49a
SHA1

b9110c3340e84c56e146085adf5d25ee2de7987a
SHA256

3675db37a5c08fdd062e3b5aae428ca2346375c05ca2ab252ef8403d2ce655e9
SHA512

4c02d90f8bc906ca15eb0391f997abbf6fbae4cad62593c6c87521f0e8b8d89f97a1ca5241983f03d9f9a8b1bb63d66cc05ee2c17343a1c773e37817b944d845

Score

8^/10

discovery persistence

Malware Config

Signatures

Suspicious use of AdjustPrivilegeToken 9 IoCs

Processes:

citadel_1.3.3.4.vir.exeWinMail.exe

description	pid	process
Token: SeSecurityPrivilege	1156	citadel_1.3.3.4.vir.exe
Token: SeSecurityPrivilege	1156	citadel_1.3.3.4.vir.exe
Token: SeSecurityPrivilege	1156	citadel_1.3.3.4.vir.exe
Token: SeSecurityPrivilege	1156	citadel_1.3.3.4.vir.exe
Token: SeSecurityPrivilege	1156	citadel_1.3.3.4.vir.exe
Token: SeSecurityPrivilege	1156	citadel_1.3.3.4.vir.exe
Token: SeSecurityPrivilege	1156	citadel_1.3.3.4.vir.exe
Token: SeSecurityPrivilege	1156	citadel_1.3.3.4.vir.exe
Token: SeManageVolumePrivilege	276	WinMail.exe

Suspicious use of WriteProcessMemory 58 IoCs

Processes:

citadel_1.3.3.4.vir.exeneva.exe

description	pid	process	target process
PID 1156 wrote to memory of 1188	1156	citadel_1.3.3.4.vir.exe	neva.exe
PID 1156 wrote to memory of 1188	1156	citadel_1.3.3.4.vir.exe	neva.exe
PID 1156 wrote to memory of 1188	1156	citadel_1.3.3.4.vir.exe	neva.exe
PID 1156 wrote to memory of 1188	1156	citadel_1.3.3.4.vir.exe	neva.exe
PID 1188 wrote to memory of 1096	1188	neva.exe	taskhost.exe
PID 1188 wrote to memory of 1096	1188	neva.exe	taskhost.exe
PID 1188 wrote to memory of 1096	1188	neva.exe	taskhost.exe
PID 1188 wrote to memory of 1096	1188	neva.exe	taskhost.exe
PID 1188 wrote to memory of 1096	1188	neva.exe	taskhost.exe
PID 1188 wrote to memory of 1160	1188	neva.exe	Dwm.exe
PID 1188 wrote to memory of 1160	1188	neva.exe	Dwm.exe
PID 1188 wrote to memory of 1160	1188	neva.exe	Dwm.exe
PID 1188 wrote to memory of 1160	1188	neva.exe	Dwm.exe
PID 1188 wrote to memory of 1160	1188	neva.exe	Dwm.exe
PID 1188 wrote to memory of 1248	1188	neva.exe	Explorer.EXE
PID 1188 wrote to memory of 1248	1188	neva.exe	Explorer.EXE
PID 1188 wrote to memory of 1248	1188	neva.exe	Explorer.EXE
PID 1188 wrote to memory of 1248	1188	neva.exe	Explorer.EXE
PID 1188 wrote to memory of 1248	1188	neva.exe	Explorer.EXE
PID 1188 wrote to memory of 1156	1188	neva.exe	citadel_1.3.3.4.vir.exe
PID 1188 wrote to memory of 1156	1188	neva.exe	citadel_1.3.3.4.vir.exe
PID 1188 wrote to memory of 1156	1188	neva.exe	citadel_1.3.3.4.vir.exe
PID 1188 wrote to memory of 1156	1188	neva.exe	citadel_1.3.3.4.vir.exe
PID 1188 wrote to memory of 1156	1188	neva.exe	citadel_1.3.3.4.vir.exe
PID 1156 wrote to memory of 1988	1156	citadel_1.3.3.4.vir.exe	cmd.exe
PID 1156 wrote to memory of 1988	1156	citadel_1.3.3.4.vir.exe	cmd.exe
PID 1156 wrote to memory of 1988	1156	citadel_1.3.3.4.vir.exe	cmd.exe
PID 1156 wrote to memory of 1988	1156	citadel_1.3.3.4.vir.exe	cmd.exe
PID 1156 wrote to memory of 1988	1156	citadel_1.3.3.4.vir.exe	cmd.exe
PID 1156 wrote to memory of 1988	1156	citadel_1.3.3.4.vir.exe	cmd.exe
PID 1156 wrote to memory of 1988	1156	citadel_1.3.3.4.vir.exe	cmd.exe
PID 1156 wrote to memory of 1988	1156	citadel_1.3.3.4.vir.exe	cmd.exe
PID 1156 wrote to memory of 1988	1156	citadel_1.3.3.4.vir.exe	cmd.exe
PID 1188 wrote to memory of 368	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 368	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 368	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 368	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 368	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 1032	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 1032	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 1032	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 1032	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 1032	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 1496	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 1496	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 1496	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 1496	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 1496	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 540	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 540	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 540	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 540	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 540	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 1572	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 1572	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 1572	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 1572	1188	neva.exe	DllHost.exe
PID 1188 wrote to memory of 1572	1188	neva.exe	DllHost.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

WinMail.exe

pid process

276 WinMail.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

WinMail.exe

pid process

276 WinMail.exe
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

pid	process
276	WinMail.exe

pid	process
276	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\24BA7C90-00000001.eml:OECustomProperty	WinMail.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

neva.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\Vodaokk = "C:\\Users\\Admin\\AppData\\Roaming\\Ycula\\neva.exe"	neva.exe
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\Currentversion\Run	neva.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\Currentversion\Run	neva.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1988 cmd.exe

pid	process
1988	cmd.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

citadel_1.3.3.4.vir.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\Privacy	citadel_1.3.3.4.vir.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	citadel_1.3.3.4.vir.exe

Loads dropped DLL 2 IoCs

Processes:

citadel_1.3.3.4.vir.exe

pid process

1156 citadel_1.3.3.4.vir.exe
1156 citadel_1.3.3.4.vir.exe
Executes dropped EXE 1 IoCs

Processes:

neva.exe

pid process

1188 neva.exe

pid	process
1156	citadel_1.3.3.4.vir.exe
1156	citadel_1.3.3.4.vir.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

Processes:

neva.exe

pid	process
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe
1188	neva.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

citadel_1.3.3.4.vir.exe

description pid process target process

PID 1156 set thread context of 1988 1156 citadel_1.3.3.4.vir.exe cmd.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

WinMail.exe

pid process

276 WinMail.exe

description	pid	process	target process
PID 1156 set thread context of 1988	1156	citadel_1.3.3.4.vir.exe	cmd.exe

pid	process
276	WinMail.exe

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1096

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1160

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1248

C:\Users\Admin\AppData\Local\Temp\citadel_1.3.3.4.vir.exe
"C:\Users\Admin\AppData\Local\Temp\citadel_1.3.3.4.vir.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- Modifies Internet Explorer settings
- Loads dropped DLL
- Suspicious use of SetThreadContext
PID:1156

C:\Users\Admin\AppData\Roaming\Ycula\neva.exe
"C:\Users\Admin\AppData\Roaming\Ycula\neva.exe"
3⤵
- Suspicious use of WriteProcessMemory
- Adds Run key to start application
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:1188

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpe8e9469b.bat"
3⤵
- Deletes itself
PID:1988

C:\Program Files\Windows Mail\WinMail.exe
"C:\Program Files\Windows Mail\WinMail.exe" -Embedding
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- NTFS ADS
- Suspicious use of SetWindowsHookEx
PID:276

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:368

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1032

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1496

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:540

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1572

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

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpe8e9469b.bat

Download Submit
C:\Users\Admin\AppData\Roaming\Ureqku\agpa.xyr

Download Submit
C:\Users\Admin\AppData\Roaming\Ycula\neva.exe

Download Submit
C:\Users\Admin\AppData\Roaming\Ycula\neva.exe

Download Submit
\Users\Admin\AppData\Roaming\Ycula\neva.exe

Download Submit
\Users\Admin\AppData\Roaming\Ycula\neva.exe

Download Submit
memory/276-5-0x0000000003970000-0x0000000003A70000-memory.dmp

Filesize
1024KB

Download
memory/276-7-0x0000000003970000-0x0000000003B70000-memory.dmp

Filesize
2.0MB

Download
memory/276-9-0x0000000003970000-0x0000000003A70000-memory.dmp

Filesize
1024KB

Download
memory/276-10-0x0000000003970000-0x0000000003B70000-memory.dmp

Filesize
2.0MB

Download
memory/276-11-0x0000000003A70000-0x0000000003B70000-memory.dmp

Filesize
1024KB

Download
memory/276-15-0x0000000002650000-0x0000000002652000-memory.dmp

Filesize
8KB

Download
memory/276-16-0x0000000002670000-0x0000000002672000-memory.dmp

Filesize
8KB

Download
memory/276-17-0x0000000002660000-0x0000000002662000-memory.dmp

Filesize
8KB

Download
memory/276-18-0x0000000003BA0000-0x0000000003BA2000-memory.dmp

Filesize
8KB

Download
memory/276-19-0x0000000003F00000-0x0000000003F02000-memory.dmp

Filesize
8KB

Download
memory/276-20-0x0000000002650000-0x0000000002652000-memory.dmp

Filesize
8KB

Download
memory/276-21-0x0000000002650000-0x0000000002652000-memory.dmp

Filesize
8KB

Download
memory/276-22-0x0000000003D60000-0x0000000003D62000-memory.dmp

Filesize
8KB

Download
memory/276-23-0x0000000003BD0000-0x0000000003BD2000-memory.dmp

Filesize
8KB

Download
memory/276-24-0x0000000003BC0000-0x0000000003BC2000-memory.dmp

Filesize
8KB

Download
memory/276-25-0x0000000003BC0000-0x0000000003BC2000-memory.dmp

Filesize
8KB

Download
memory/276-26-0x0000000004150000-0x0000000004152000-memory.dmp

Filesize
8KB

Download
memory/276-27-0x0000000003B90000-0x0000000003B92000-memory.dmp

Filesize
8KB

Download
memory/276-28-0x00000000042C0000-0x00000000042C2000-memory.dmp

Filesize
8KB

Download
memory/276-29-0x0000000004510000-0x0000000004512000-memory.dmp

Filesize
8KB

Download
memory/276-30-0x00000000045A0000-0x00000000045A2000-memory.dmp

Filesize
8KB

Download
memory/276-31-0x0000000004630000-0x0000000004632000-memory.dmp

Filesize
8KB

Download
memory/276-32-0x0000000004650000-0x0000000004652000-memory.dmp

Filesize
8KB

Download
memory/276-33-0x0000000004670000-0x0000000004672000-memory.dmp

Filesize
8KB

Download
memory/276-34-0x0000000004700000-0x0000000004702000-memory.dmp

Filesize
8KB

Download
memory/276-35-0x0000000004820000-0x0000000004822000-memory.dmp

Filesize
8KB

Download
memory/276-36-0x0000000004C30000-0x0000000004C32000-memory.dmp

Filesize
8KB

Download
memory/276-37-0x00000000055F0000-0x00000000055F2000-memory.dmp

Filesize
8KB

Download
memory/276-38-0x0000000005760000-0x0000000005762000-memory.dmp

Filesize
8KB

Download
memory/276-39-0x0000000005770000-0x0000000005772000-memory.dmp

Filesize
8KB

Download
memory/276-40-0x0000000005800000-0x0000000005802000-memory.dmp

Filesize
8KB

Download
memory/276-41-0x0000000005810000-0x0000000005812000-memory.dmp

Filesize
8KB

Download
memory/276-42-0x00000000026E0000-0x00000000026E2000-memory.dmp

Filesize
8KB

Download
memory/276-43-0x0000000003CB0000-0x0000000003CB2000-memory.dmp

Filesize
8KB

Download
memory/276-44-0x00000000042F0000-0x00000000042F2000-memory.dmp

Filesize
8KB

Download
memory/276-45-0x0000000004300000-0x0000000004302000-memory.dmp

Filesize
8KB

Download
memory/276-46-0x0000000004310000-0x0000000004312000-memory.dmp

Filesize
8KB

Download
memory/276-47-0x0000000004320000-0x0000000004322000-memory.dmp

Filesize
8KB

Download
memory/276-48-0x0000000004330000-0x0000000004332000-memory.dmp

Filesize
8KB

Download
memory/276-49-0x0000000003970000-0x0000000003A70000-memory.dmp

Filesize
1024KB

Download
memory/276-51-0x00000000024D0000-0x00000000024E0000-memory.dmp

Filesize
64KB

Download
memory/276-57-0x00000000023B0000-0x00000000023C0000-memory.dmp

Filesize
64KB

Download
memory/1188-2-0x0000000000000000-mapping.dmp

Download
memory/1988-63-0x0000000000050000-0x0000000000088000-memory.dmp

Filesize
224KB

Download
memory/1988-65-0x000000000005D9A6-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads