cf813a86d30ddd0c2ca59f73334fffd241bfd31eddfe30dc2e73d5b29ae752d1

General

Target

citadel_1.3.3.1.vir.exe
Size

199KB
MD5

df96ba696553268ea03f8bfa555047a4
SHA1

ea937edc811b75a2949eb609d95bc53b031e63ed
SHA256

cf813a86d30ddd0c2ca59f73334fffd241bfd31eddfe30dc2e73d5b29ae752d1
SHA512

3ee228da9dcb7907c939ecebf417247b5b65dce22e92b642796de66f5fc8b7bc84bf658ffae0dab70f5f1cdbbc20df54ce89248a2d70e4dac54862b9a5ed8df3

Score

8^/10

persistence

Malware Config

Signatures

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

WinMail.exe

pid process

828 WinMail.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

citadel_1.3.3.1.vir.exe

description pid process target process

PID 1460 set thread context of 2004 1460 citadel_1.3.3.1.vir.exe cmd.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2004 cmd.exe

pid	process
828	WinMail.exe

description	pid	process	target process
PID 1460 set thread context of 2004	1460	citadel_1.3.3.1.vir.exe	cmd.exe

pid	process
2004	cmd.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

citadel_1.3.3.1.vir.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\Privacy	citadel_1.3.3.1.vir.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	citadel_1.3.3.1.vir.exe

Loads dropped DLL 2 IoCs

Processes:

citadel_1.3.3.1.vir.exe

pid process

1460 citadel_1.3.3.1.vir.exe
1460 citadel_1.3.3.1.vir.exe
Executes dropped EXE 1 IoCs

Processes:

uribu.exe

pid process

1564 uribu.exe

pid	process
1460	citadel_1.3.3.1.vir.exe
1460	citadel_1.3.3.1.vir.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

Processes:

uribu.exe

pid	process
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe
1564	uribu.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

WinMail.exe

pid process

828 WinMail.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

WinMail.exe

pid process

828 WinMail.exe

pid	process
828	WinMail.exe

pid	process
828	WinMail.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

uribu.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\Currentversion\Run	uribu.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\Currentversion\Run	uribu.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\Yvazsewamo = "C:\\Users\\Admin\\AppData\\Roaming\\Inihqe\\uribu.exe"	uribu.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\5F790BA8-00000001.eml:OECustomProperty	WinMail.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

citadel_1.3.3.1.vir.exeWinMail.exe

description	pid	process
Token: SeSecurityPrivilege	1460	citadel_1.3.3.1.vir.exe
Token: SeSecurityPrivilege	1460	citadel_1.3.3.1.vir.exe
Token: SeSecurityPrivilege	1460	citadel_1.3.3.1.vir.exe
Token: SeSecurityPrivilege	1460	citadel_1.3.3.1.vir.exe
Token: SeManageVolumePrivilege	828	WinMail.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

citadel_1.3.3.1.vir.exeuribu.exe

description	pid	process	target process
PID 1460 wrote to memory of 1564	1460	citadel_1.3.3.1.vir.exe	uribu.exe
PID 1460 wrote to memory of 1564	1460	citadel_1.3.3.1.vir.exe	uribu.exe
PID 1460 wrote to memory of 1564	1460	citadel_1.3.3.1.vir.exe	uribu.exe
PID 1460 wrote to memory of 1564	1460	citadel_1.3.3.1.vir.exe	uribu.exe
PID 1564 wrote to memory of 1092	1564	uribu.exe	taskhost.exe
PID 1564 wrote to memory of 1092	1564	uribu.exe	taskhost.exe
PID 1564 wrote to memory of 1092	1564	uribu.exe	taskhost.exe
PID 1564 wrote to memory of 1092	1564	uribu.exe	taskhost.exe
PID 1564 wrote to memory of 1092	1564	uribu.exe	taskhost.exe
PID 1564 wrote to memory of 1196	1564	uribu.exe	Dwm.exe
PID 1564 wrote to memory of 1196	1564	uribu.exe	Dwm.exe
PID 1564 wrote to memory of 1196	1564	uribu.exe	Dwm.exe
PID 1564 wrote to memory of 1196	1564	uribu.exe	Dwm.exe
PID 1564 wrote to memory of 1196	1564	uribu.exe	Dwm.exe
PID 1564 wrote to memory of 1244	1564	uribu.exe	Explorer.EXE
PID 1564 wrote to memory of 1244	1564	uribu.exe	Explorer.EXE
PID 1564 wrote to memory of 1244	1564	uribu.exe	Explorer.EXE
PID 1564 wrote to memory of 1244	1564	uribu.exe	Explorer.EXE
PID 1564 wrote to memory of 1244	1564	uribu.exe	Explorer.EXE
PID 1564 wrote to memory of 1460	1564	uribu.exe	citadel_1.3.3.1.vir.exe
PID 1564 wrote to memory of 1460	1564	uribu.exe	citadel_1.3.3.1.vir.exe
PID 1564 wrote to memory of 1460	1564	uribu.exe	citadel_1.3.3.1.vir.exe
PID 1564 wrote to memory of 1460	1564	uribu.exe	citadel_1.3.3.1.vir.exe
PID 1564 wrote to memory of 1460	1564	uribu.exe	citadel_1.3.3.1.vir.exe
PID 1460 wrote to memory of 2004	1460	citadel_1.3.3.1.vir.exe	cmd.exe
PID 1460 wrote to memory of 2004	1460	citadel_1.3.3.1.vir.exe	cmd.exe
PID 1460 wrote to memory of 2004	1460	citadel_1.3.3.1.vir.exe	cmd.exe
PID 1460 wrote to memory of 2004	1460	citadel_1.3.3.1.vir.exe	cmd.exe
PID 1460 wrote to memory of 2004	1460	citadel_1.3.3.1.vir.exe	cmd.exe
PID 1460 wrote to memory of 2004	1460	citadel_1.3.3.1.vir.exe	cmd.exe
PID 1460 wrote to memory of 2004	1460	citadel_1.3.3.1.vir.exe	cmd.exe
PID 1460 wrote to memory of 2004	1460	citadel_1.3.3.1.vir.exe	cmd.exe
PID 1460 wrote to memory of 2004	1460	citadel_1.3.3.1.vir.exe	cmd.exe
PID 1564 wrote to memory of 1180	1564	uribu.exe	DllHost.exe
PID 1564 wrote to memory of 1180	1564	uribu.exe	DllHost.exe
PID 1564 wrote to memory of 1180	1564	uribu.exe	DllHost.exe
PID 1564 wrote to memory of 1180	1564	uribu.exe	DllHost.exe
PID 1564 wrote to memory of 1180	1564	uribu.exe	DllHost.exe
PID 1564 wrote to memory of 524	1564	uribu.exe	DllHost.exe
PID 1564 wrote to memory of 524	1564	uribu.exe	DllHost.exe
PID 1564 wrote to memory of 524	1564	uribu.exe	DllHost.exe
PID 1564 wrote to memory of 524	1564	uribu.exe	DllHost.exe
PID 1564 wrote to memory of 524	1564	uribu.exe	DllHost.exe

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1092

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1196

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1244

C:\Users\Admin\AppData\Local\Temp\citadel_1.3.3.1.vir.exe
"C:\Users\Admin\AppData\Local\Temp\citadel_1.3.3.1.vir.exe"
2⤵
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1460

C:\Users\Admin\AppData\Roaming\Inihqe\uribu.exe
"C:\Users\Admin\AppData\Roaming\Inihqe\uribu.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1564

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmp125894c2.bat"
3⤵
- Deletes itself
PID:2004

C:\Program Files\Windows Mail\WinMail.exe
"C:\Program Files\Windows Mail\WinMail.exe" -Embedding
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of SendNotifyMessage
- NTFS ADS
- Suspicious use of AdjustPrivilegeToken
PID:828

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1180

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:524

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\tmp125894c2.bat

Download Submit
C:\Users\Admin\AppData\Roaming\Gogi\uqyzh.lix

Download Submit
C:\Users\Admin\AppData\Roaming\Inihqe\uribu.exe

Download Submit
C:\Users\Admin\AppData\Roaming\Inihqe\uribu.exe

Download Submit
\Users\Admin\AppData\Roaming\Inihqe\uribu.exe

Download Submit
\Users\Admin\AppData\Roaming\Inihqe\uribu.exe

Download Submit
memory/828-5-0x00000000038F0000-0x00000000039F0000-memory.dmp

Filesize
1024KB

Download
memory/828-7-0x00000000038F0000-0x0000000003AF0000-memory.dmp

Filesize
2.0MB

Download
memory/828-9-0x00000000038F0000-0x00000000039F0000-memory.dmp

Filesize
1024KB

Download
memory/828-10-0x00000000038F0000-0x0000000003AF0000-memory.dmp

Filesize
2.0MB

Download
memory/828-11-0x00000000039F0000-0x0000000003AF0000-memory.dmp

Filesize
1024KB

Download
memory/828-15-0x0000000002560000-0x0000000002562000-memory.dmp

Filesize
8KB

Download
memory/828-16-0x0000000002550000-0x0000000002552000-memory.dmp

Filesize
8KB

Download
memory/828-17-0x0000000003AF0000-0x0000000003AF2000-memory.dmp

Filesize
8KB

Download
memory/828-18-0x0000000003BF0000-0x0000000003BF2000-memory.dmp

Filesize
8KB

Download
memory/828-19-0x0000000004010000-0x0000000004012000-memory.dmp

Filesize
8KB

Download
memory/828-20-0x0000000003B30000-0x0000000003B32000-memory.dmp

Filesize
8KB

Download
memory/828-21-0x0000000003C00000-0x0000000003C02000-memory.dmp

Filesize
8KB

Download
memory/828-22-0x0000000003C20000-0x0000000003C22000-memory.dmp

Filesize
8KB

Download
memory/828-23-0x0000000003B30000-0x0000000003B32000-memory.dmp

Filesize
8KB

Download
memory/828-24-0x0000000003B50000-0x0000000003B52000-memory.dmp

Filesize
8KB

Download
memory/828-25-0x0000000003B30000-0x0000000003B32000-memory.dmp

Filesize
8KB

Download
memory/828-26-0x0000000003B30000-0x0000000003B32000-memory.dmp

Filesize
8KB

Download
memory/828-27-0x0000000003F60000-0x0000000003F62000-memory.dmp

Filesize
8KB

Download
memory/828-28-0x0000000004000000-0x0000000004002000-memory.dmp

Filesize
8KB

Download
memory/828-29-0x0000000003B50000-0x0000000003B52000-memory.dmp

Filesize
8KB

Download
memory/828-30-0x00000000041C0000-0x00000000041C2000-memory.dmp

Filesize
8KB

Download
memory/828-31-0x00000000045E0000-0x00000000045E2000-memory.dmp

Filesize
8KB

Download
memory/828-32-0x00000000045F0000-0x00000000045F2000-memory.dmp

Filesize
8KB

Download
memory/828-33-0x0000000004600000-0x0000000004602000-memory.dmp

Filesize
8KB

Download
memory/828-34-0x0000000004620000-0x0000000004622000-memory.dmp

Filesize
8KB

Download
memory/828-35-0x0000000004640000-0x0000000004642000-memory.dmp

Filesize
8KB

Download
memory/828-36-0x0000000004650000-0x0000000004652000-memory.dmp

Filesize
8KB

Download
memory/828-37-0x0000000004660000-0x0000000004662000-memory.dmp

Filesize
8KB

Download
memory/828-38-0x00000000045B0000-0x00000000045B2000-memory.dmp

Filesize
8KB

Download
memory/828-39-0x0000000004670000-0x0000000004672000-memory.dmp

Filesize
8KB

Download
memory/828-40-0x00000000045A0000-0x00000000045A2000-memory.dmp

Filesize
8KB

Download
memory/828-41-0x0000000004680000-0x0000000004682000-memory.dmp

Filesize
8KB

Download
memory/828-42-0x0000000004590000-0x0000000004592000-memory.dmp

Filesize
8KB

Download
memory/828-43-0x0000000004580000-0x0000000004582000-memory.dmp

Filesize
8KB

Download
memory/828-44-0x0000000004570000-0x0000000004572000-memory.dmp

Filesize
8KB

Download
memory/828-45-0x0000000003E50000-0x0000000003E52000-memory.dmp

Filesize
8KB

Download
memory/828-46-0x0000000003B60000-0x0000000003B62000-memory.dmp

Filesize
8KB

Download
memory/828-47-0x0000000004DF0000-0x0000000004DF2000-memory.dmp

Filesize
8KB

Download
memory/828-48-0x0000000004DE0000-0x0000000004DE2000-memory.dmp

Filesize
8KB

Download
memory/828-49-0x0000000004D50000-0x0000000004D52000-memory.dmp

Filesize
8KB

Download
memory/828-50-0x0000000004D40000-0x0000000004D42000-memory.dmp

Filesize
8KB

Download
memory/828-51-0x00000000038F0000-0x00000000039F0000-memory.dmp

Filesize
1024KB

Download
memory/828-53-0x0000000002410000-0x0000000002420000-memory.dmp

Filesize
64KB

Download
memory/828-59-0x00000000023B0000-0x00000000023C0000-memory.dmp

Filesize
64KB

Download
memory/1564-2-0x0000000000000000-mapping.dmp

Download
memory/2004-65-0x0000000000050000-0x0000000000086000-memory.dmp

Filesize
216KB

Download
memory/2004-67-0x00000000000664E4-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