f1c63b15b0244a6f956cdbfc811d1990be99f8e5fa4027403b4f1aaf1de312a2

General

Target

citadel_1.3.4.0.vir.exe
Size

144KB
MD5

d19f137ed4625db20e660bde8f04d423
SHA1

96d7a2903df9727c4db018e384505d15186b53a3
SHA256

f1c63b15b0244a6f956cdbfc811d1990be99f8e5fa4027403b4f1aaf1de312a2
SHA512

04ac65fbc7cb38b37b98057ed9136b35c1eedbafa93c82262a6d07fa894131fd66f034f4aa6e578285a4aa499a407ceb5cdc8bc0c82a5f34d08d340a84ee57ef

Score

8^/10

persistence

Malware Config

Signatures

Loads dropped DLL 2 IoCs

Processes:

citadel_1.3.4.0.vir.exe

pid process

1060 citadel_1.3.4.0.vir.exe
1060 citadel_1.3.4.0.vir.exe
Executes dropped EXE 1 IoCs

Processes:

ilna.exe

pid process

1084 ilna.exe

pid	process
1060	citadel_1.3.4.0.vir.exe
1060	citadel_1.3.4.0.vir.exe

Suspicious behavior: EnumeratesProcesses 34 IoCs

Processes:

ilna.exe

pid	process
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe
1084	ilna.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

WinMail.exe

pid process

316 WinMail.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

WinMail.exe

pid process

316 WinMail.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

WinMail.exe

pid process

316 WinMail.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

citadel_1.3.4.0.vir.exe

description pid process target process

PID 1060 set thread context of 1868 1060 citadel_1.3.4.0.vir.exe cmd.exe

pid	process
316	WinMail.exe

pid	process
316	WinMail.exe

pid	process
316	WinMail.exe

description	pid	process	target process
PID 1060 set thread context of 1868	1060	citadel_1.3.4.0.vir.exe	cmd.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

citadel_1.3.4.0.vir.exeWinMail.exe

description	pid	process
Token: SeSecurityPrivilege	1060	citadel_1.3.4.0.vir.exe
Token: SeSecurityPrivilege	1060	citadel_1.3.4.0.vir.exe
Token: SeSecurityPrivilege	1060	citadel_1.3.4.0.vir.exe
Token: SeSecurityPrivilege	1060	citadel_1.3.4.0.vir.exe
Token: SeManageVolumePrivilege	316	WinMail.exe

Suspicious use of WriteProcessMemory 58 IoCs

Processes:

citadel_1.3.4.0.vir.exeilna.exe

description	pid	process	target process
PID 1060 wrote to memory of 1084	1060	citadel_1.3.4.0.vir.exe	ilna.exe
PID 1060 wrote to memory of 1084	1060	citadel_1.3.4.0.vir.exe	ilna.exe
PID 1060 wrote to memory of 1084	1060	citadel_1.3.4.0.vir.exe	ilna.exe
PID 1060 wrote to memory of 1084	1060	citadel_1.3.4.0.vir.exe	ilna.exe
PID 1084 wrote to memory of 1184	1084	ilna.exe	taskhost.exe
PID 1084 wrote to memory of 1184	1084	ilna.exe	taskhost.exe
PID 1084 wrote to memory of 1184	1084	ilna.exe	taskhost.exe
PID 1084 wrote to memory of 1184	1084	ilna.exe	taskhost.exe
PID 1084 wrote to memory of 1184	1084	ilna.exe	taskhost.exe
PID 1084 wrote to memory of 1268	1084	ilna.exe	Dwm.exe
PID 1084 wrote to memory of 1268	1084	ilna.exe	Dwm.exe
PID 1084 wrote to memory of 1268	1084	ilna.exe	Dwm.exe
PID 1084 wrote to memory of 1268	1084	ilna.exe	Dwm.exe
PID 1084 wrote to memory of 1268	1084	ilna.exe	Dwm.exe
PID 1084 wrote to memory of 1324	1084	ilna.exe	Explorer.EXE
PID 1084 wrote to memory of 1324	1084	ilna.exe	Explorer.EXE
PID 1084 wrote to memory of 1324	1084	ilna.exe	Explorer.EXE
PID 1084 wrote to memory of 1324	1084	ilna.exe	Explorer.EXE
PID 1084 wrote to memory of 1324	1084	ilna.exe	Explorer.EXE
PID 1084 wrote to memory of 1060	1084	ilna.exe	citadel_1.3.4.0.vir.exe
PID 1084 wrote to memory of 1060	1084	ilna.exe	citadel_1.3.4.0.vir.exe
PID 1084 wrote to memory of 1060	1084	ilna.exe	citadel_1.3.4.0.vir.exe
PID 1084 wrote to memory of 1060	1084	ilna.exe	citadel_1.3.4.0.vir.exe
PID 1084 wrote to memory of 1060	1084	ilna.exe	citadel_1.3.4.0.vir.exe
PID 1060 wrote to memory of 1868	1060	citadel_1.3.4.0.vir.exe	cmd.exe
PID 1060 wrote to memory of 1868	1060	citadel_1.3.4.0.vir.exe	cmd.exe
PID 1060 wrote to memory of 1868	1060	citadel_1.3.4.0.vir.exe	cmd.exe
PID 1060 wrote to memory of 1868	1060	citadel_1.3.4.0.vir.exe	cmd.exe
PID 1060 wrote to memory of 1868	1060	citadel_1.3.4.0.vir.exe	cmd.exe
PID 1060 wrote to memory of 1868	1060	citadel_1.3.4.0.vir.exe	cmd.exe
PID 1060 wrote to memory of 1868	1060	citadel_1.3.4.0.vir.exe	cmd.exe
PID 1060 wrote to memory of 1868	1060	citadel_1.3.4.0.vir.exe	cmd.exe
PID 1060 wrote to memory of 1868	1060	citadel_1.3.4.0.vir.exe	cmd.exe
PID 1084 wrote to memory of 1996	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 1996	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 1996	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 1996	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 1996	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 1508	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 1508	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 1508	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 1508	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 1508	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 1524	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 1524	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 1524	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 1524	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 1524	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 536	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 536	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 536	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 536	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 536	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 560	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 560	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 560	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 560	1084	ilna.exe	DllHost.exe
PID 1084 wrote to memory of 560	1084	ilna.exe	DllHost.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\4AA00FE1-00000001.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:

ilna.exe

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

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1868 cmd.exe

pid	process
1868	cmd.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

citadel_1.3.4.0.vir.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\Privacy	citadel_1.3.4.0.vir.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	citadel_1.3.4.0.vir.exe

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1184

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1268

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

C:\Users\Admin\AppData\Local\Temp\citadel_1.3.4.0.vir.exe
"C:\Users\Admin\AppData\Local\Temp\citadel_1.3.4.0.vir.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- Modifies Internet Explorer settings
PID:1060

C:\Users\Admin\AppData\Roaming\Yvkyow\ilna.exe
"C:\Users\Admin\AppData\Roaming\Yvkyow\ilna.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
- Adds Run key to start application
PID:1084

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpd9c8470b.bat"
3⤵
- Deletes itself
PID:1868

C:\Program Files\Windows Mail\WinMail.exe
"C:\Program Files\Windows Mail\WinMail.exe" -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of AdjustPrivilegeToken
- NTFS ADS
PID:316

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1996

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1508

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1524

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:536

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:560

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\tmpd9c8470b.bat

Download Submit
C:\Users\Admin\AppData\Roaming\Yvkyow\ilna.exe

Download Submit
C:\Users\Admin\AppData\Roaming\Yvkyow\ilna.exe

Download Submit
C:\Users\Admin\AppData\Roaming\Zycaw\emdo.ato

Download Submit
\Users\Admin\AppData\Roaming\Yvkyow\ilna.exe

Download Submit
\Users\Admin\AppData\Roaming\Yvkyow\ilna.exe

Download Submit
memory/316-5-0x0000000003950000-0x0000000003A50000-memory.dmp

Filesize
1024KB

Download
memory/316-7-0x0000000003950000-0x0000000003B50000-memory.dmp

Filesize
2.0MB

Download
memory/316-9-0x0000000003950000-0x0000000003A50000-memory.dmp

Filesize
1024KB

Download
memory/316-10-0x0000000003950000-0x0000000003B50000-memory.dmp

Filesize
2.0MB

Download
memory/316-11-0x0000000003A50000-0x0000000003B50000-memory.dmp

Filesize
1024KB

Download
memory/316-15-0x00000000024D0000-0x00000000024D2000-memory.dmp

Filesize
8KB

Download
memory/316-16-0x0000000002670000-0x0000000002672000-memory.dmp

Filesize
8KB

Download
memory/316-17-0x0000000002660000-0x0000000002662000-memory.dmp

Filesize
8KB

Download
memory/316-18-0x0000000003CF0000-0x0000000003CF2000-memory.dmp

Filesize
8KB

Download
memory/316-19-0x0000000003E00000-0x0000000003E02000-memory.dmp

Filesize
8KB

Download
memory/316-20-0x00000000024D0000-0x00000000024D2000-memory.dmp

Filesize
8KB

Download
memory/316-21-0x0000000003DE0000-0x0000000003DE2000-memory.dmp

Filesize
8KB

Download
memory/316-22-0x0000000003D10000-0x0000000003D12000-memory.dmp

Filesize
8KB

Download
memory/316-23-0x0000000003BC0000-0x0000000003BC2000-memory.dmp

Filesize
8KB

Download
memory/316-24-0x0000000003BC0000-0x0000000003BC2000-memory.dmp

Filesize
8KB

Download
memory/316-25-0x0000000004050000-0x0000000004052000-memory.dmp

Filesize
8KB

Download
memory/316-26-0x0000000003CF0000-0x0000000003CF2000-memory.dmp

Filesize
8KB

Download
memory/316-27-0x00000000024D0000-0x00000000024D2000-memory.dmp

Filesize
8KB

Download
memory/316-28-0x0000000003CE0000-0x0000000003CE2000-memory.dmp

Filesize
8KB

Download
memory/316-29-0x0000000003DF0000-0x0000000003DF2000-memory.dmp

Filesize
8KB

Download
memory/316-30-0x00000000044A0000-0x00000000044A2000-memory.dmp

Filesize
8KB

Download
memory/316-31-0x00000000044B0000-0x00000000044B2000-memory.dmp

Filesize
8KB

Download
memory/316-32-0x00000000044C0000-0x00000000044C2000-memory.dmp

Filesize
8KB

Download
memory/316-33-0x00000000044E0000-0x00000000044E2000-memory.dmp

Filesize
8KB

Download
memory/316-34-0x0000000004500000-0x0000000004502000-memory.dmp

Filesize
8KB

Download
memory/316-35-0x0000000004510000-0x0000000004512000-memory.dmp

Filesize
8KB

Download
memory/316-36-0x0000000004520000-0x0000000004522000-memory.dmp

Filesize
8KB

Download
memory/316-37-0x0000000004530000-0x0000000004532000-memory.dmp

Filesize
8KB

Download
memory/316-38-0x0000000004540000-0x0000000004542000-memory.dmp

Filesize
8KB

Download
memory/316-39-0x0000000004780000-0x0000000004782000-memory.dmp

Filesize
8KB

Download
memory/316-40-0x0000000004790000-0x0000000004792000-memory.dmp

Filesize
8KB

Download
memory/316-41-0x0000000004820000-0x0000000004822000-memory.dmp

Filesize
8KB

Download
memory/316-42-0x0000000004D30000-0x0000000004D32000-memory.dmp

Filesize
8KB

Download
memory/316-43-0x0000000003B60000-0x0000000003B62000-memory.dmp

Filesize
8KB

Download
memory/316-44-0x0000000003BB0000-0x0000000003BB2000-memory.dmp

Filesize
8KB

Download
memory/316-45-0x00000000045E0000-0x00000000045E2000-memory.dmp

Filesize
8KB

Download
memory/316-46-0x00000000045F0000-0x00000000045F2000-memory.dmp

Filesize
8KB

Download
memory/316-47-0x0000000004600000-0x0000000004602000-memory.dmp

Filesize
8KB

Download
memory/316-48-0x0000000004610000-0x0000000004612000-memory.dmp

Filesize
8KB

Download
memory/316-49-0x0000000004620000-0x0000000004622000-memory.dmp

Filesize
8KB

Download
memory/316-50-0x0000000003950000-0x0000000003A50000-memory.dmp

Filesize
1024KB

Download
memory/316-52-0x00000000023A0000-0x00000000023B0000-memory.dmp

Filesize
64KB

Download
memory/316-58-0x0000000002340000-0x0000000002350000-memory.dmp

Filesize
64KB

Download
memory/1084-2-0x0000000000000000-mapping.dmp

Download
memory/1868-64-0x0000000000050000-0x0000000000087000-memory.dmp

Filesize
220KB

Download
memory/1868-66-0x00000000000666CB-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