371b9214f60a70c81ec1756d284e8028ff7603498341ecb7fa5cc09f3b10043e

General

Target

citadel_1.2.0.0b.vir.exe
Size

213KB
MD5

b7f755dc5616bbf10f6d11a276c88c98
SHA1

6a31f670e6b91d246ff88d073d6c0b0cde9e9300
SHA256

371b9214f60a70c81ec1756d284e8028ff7603498341ecb7fa5cc09f3b10043e
SHA512

a569a9049e1c5a3cd5278400a4a8d53c6b728c685aca6401896c94ddf5efd7226660feaeb3a65e30d8b652fdf7da93053b577cc08fc8b480bb4527c6efa4cc89

Score

8^/10

discovery persistence

Malware Config

Signatures

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
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

WinMail.exe

pid process

908 WinMail.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

WinMail.exe

pid process

908 WinMail.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2044 cmd.exe

pid	process
908	WinMail.exe

pid	process
908	WinMail.exe

pid	process
2044	cmd.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\28536CE4-00000001.eml:OECustomProperty	WinMail.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

Processes:

citadel_1.2.0.0b.vir.exeWinMail.exe

description	pid	process
Token: SeSecurityPrivilege	1060	citadel_1.2.0.0b.vir.exe
Token: SeSecurityPrivilege	1060	citadel_1.2.0.0b.vir.exe
Token: SeSecurityPrivilege	1060	citadel_1.2.0.0b.vir.exe
Token: SeSecurityPrivilege	1060	citadel_1.2.0.0b.vir.exe
Token: SeSecurityPrivilege	1060	citadel_1.2.0.0b.vir.exe
Token: SeSecurityPrivilege	1060	citadel_1.2.0.0b.vir.exe
Token: SeSecurityPrivilege	1060	citadel_1.2.0.0b.vir.exe
Token: SeSecurityPrivilege	1060	citadel_1.2.0.0b.vir.exe
Token: SeManageVolumePrivilege	908	WinMail.exe

Loads dropped DLL 2 IoCs

Processes:

citadel_1.2.0.0b.vir.exe

pid process

1060 citadel_1.2.0.0b.vir.exe
1060 citadel_1.2.0.0b.vir.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

citadel_1.2.0.0b.vir.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\Privacy	citadel_1.2.0.0b.vir.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	citadel_1.2.0.0b.vir.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

icup.exe

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

Suspicious use of WriteProcessMemory 93 IoCs

Processes:

citadel_1.2.0.0b.vir.exeicup.exe

description	pid	process	target process
PID 1060 wrote to memory of 1084	1060	citadel_1.2.0.0b.vir.exe	icup.exe
PID 1060 wrote to memory of 1084	1060	citadel_1.2.0.0b.vir.exe	icup.exe
PID 1060 wrote to memory of 1084	1060	citadel_1.2.0.0b.vir.exe	icup.exe
PID 1060 wrote to memory of 1084	1060	citadel_1.2.0.0b.vir.exe	icup.exe
PID 1084 wrote to memory of 1184	1084	icup.exe	taskhost.exe
PID 1084 wrote to memory of 1184	1084	icup.exe	taskhost.exe
PID 1084 wrote to memory of 1184	1084	icup.exe	taskhost.exe
PID 1084 wrote to memory of 1184	1084	icup.exe	taskhost.exe
PID 1084 wrote to memory of 1184	1084	icup.exe	taskhost.exe
PID 1084 wrote to memory of 1268	1084	icup.exe	Dwm.exe
PID 1084 wrote to memory of 1268	1084	icup.exe	Dwm.exe
PID 1084 wrote to memory of 1268	1084	icup.exe	Dwm.exe
PID 1084 wrote to memory of 1268	1084	icup.exe	Dwm.exe
PID 1084 wrote to memory of 1268	1084	icup.exe	Dwm.exe
PID 1084 wrote to memory of 1324	1084	icup.exe	Explorer.EXE
PID 1084 wrote to memory of 1324	1084	icup.exe	Explorer.EXE
PID 1084 wrote to memory of 1324	1084	icup.exe	Explorer.EXE
PID 1084 wrote to memory of 1324	1084	icup.exe	Explorer.EXE
PID 1084 wrote to memory of 1324	1084	icup.exe	Explorer.EXE
PID 1084 wrote to memory of 1060	1084	icup.exe	citadel_1.2.0.0b.vir.exe
PID 1084 wrote to memory of 1060	1084	icup.exe	citadel_1.2.0.0b.vir.exe
PID 1084 wrote to memory of 1060	1084	icup.exe	citadel_1.2.0.0b.vir.exe
PID 1084 wrote to memory of 1060	1084	icup.exe	citadel_1.2.0.0b.vir.exe
PID 1084 wrote to memory of 1060	1084	icup.exe	citadel_1.2.0.0b.vir.exe
PID 1060 wrote to memory of 2044	1060	citadel_1.2.0.0b.vir.exe	cmd.exe
PID 1060 wrote to memory of 2044	1060	citadel_1.2.0.0b.vir.exe	cmd.exe
PID 1060 wrote to memory of 2044	1060	citadel_1.2.0.0b.vir.exe	cmd.exe
PID 1060 wrote to memory of 2044	1060	citadel_1.2.0.0b.vir.exe	cmd.exe
PID 1060 wrote to memory of 2044	1060	citadel_1.2.0.0b.vir.exe	cmd.exe
PID 1060 wrote to memory of 2044	1060	citadel_1.2.0.0b.vir.exe	cmd.exe
PID 1060 wrote to memory of 2044	1060	citadel_1.2.0.0b.vir.exe	cmd.exe
PID 1060 wrote to memory of 2044	1060	citadel_1.2.0.0b.vir.exe	cmd.exe
PID 1060 wrote to memory of 2044	1060	citadel_1.2.0.0b.vir.exe	cmd.exe
PID 1084 wrote to memory of 1068	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1068	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1068	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1068	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1068	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 792	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 792	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 792	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 792	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 792	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1720	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1720	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1720	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1720	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1720	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1260	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1260	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1260	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1260	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1260	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1560	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1560	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1560	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1560	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 1560	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 2016	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 2016	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 2016	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 2016	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 2016	1084	icup.exe	DllHost.exe
PID 1084 wrote to memory of 2024	1084	icup.exe	DllHost.exe

Executes dropped EXE 1 IoCs

Processes:

icup.exe

pid process

1084 icup.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

citadel_1.2.0.0b.vir.exe

description pid process target process

PID 1060 set thread context of 2044 1060 citadel_1.2.0.0b.vir.exe cmd.exe

pid	process
1084	icup.exe

description	pid	process	target process
PID 1060 set thread context of 2044	1060	citadel_1.2.0.0b.vir.exe	cmd.exe

Suspicious behavior: EnumeratesProcesses 45 IoCs

Processes:

citadel_1.2.0.0b.vir.exeicup.execmd.exe

pid	process
1060	citadel_1.2.0.0b.vir.exe
1084	icup.exe
1084	icup.exe
1060	citadel_1.2.0.0b.vir.exe
1084	icup.exe
1084	icup.exe
2044	cmd.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe
1084	icup.exe

Suspicious use of SendNotifyMessage 1 IoCs

Processes:

WinMail.exe

pid process

908 WinMail.exe

pid	process
908	WinMail.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_1.2.0.0b.vir.exe
"C:\Users\Admin\AppData\Local\Temp\citadel_1.2.0.0b.vir.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
- Loads dropped DLL
- Modifies Internet Explorer settings
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
PID:1060

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

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpe4a5c4e0.bat"
3⤵
- Deletes itself
- Suspicious behavior: EnumeratesProcesses
PID:2044

C:\Program Files\Windows Mail\WinMail.exe
"C:\Program Files\Windows Mail\WinMail.exe" -Embedding
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of FindShellTrayWindow
- NTFS ADS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SendNotifyMessage
PID:908

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1068

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:792

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1720

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1260

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1560

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:2016

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:2024

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1076

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1832

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1788

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:816

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1872

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpe4a5c4e0.bat

Download Submit
C:\Users\Admin\AppData\Roaming\Laumi\icup.exe

Download Submit
C:\Users\Admin\AppData\Roaming\Laumi\icup.exe

Download Submit
C:\Users\Admin\AppData\Roaming\Nyyx\omciu.mul

Download Submit
\Users\Admin\AppData\Roaming\Laumi\icup.exe

Download Submit
\Users\Admin\AppData\Roaming\Laumi\icup.exe

Download Submit
memory/908-5-0x0000000003990000-0x0000000003A90000-memory.dmp

Filesize
1024KB

Download
memory/908-7-0x0000000003990000-0x0000000003B90000-memory.dmp

Filesize
2.0MB

Download
memory/908-9-0x0000000003990000-0x0000000003A90000-memory.dmp

Filesize
1024KB

Download
memory/908-10-0x0000000003990000-0x0000000003B90000-memory.dmp

Filesize
2.0MB

Download
memory/908-11-0x0000000003A90000-0x0000000003B90000-memory.dmp

Filesize
1024KB

Download
memory/908-15-0x00000000024D0000-0x00000000024D2000-memory.dmp

Filesize
8KB

Download
memory/908-16-0x00000000024E0000-0x00000000024E2000-memory.dmp

Filesize
8KB

Download
memory/908-17-0x00000000024F0000-0x00000000024F2000-memory.dmp

Filesize
8KB

Download
memory/908-18-0x00000000024D0000-0x00000000024D2000-memory.dmp

Filesize
8KB

Download
memory/908-19-0x00000000024E0000-0x00000000024E2000-memory.dmp

Filesize
8KB

Download
memory/908-20-0x0000000004090000-0x0000000004092000-memory.dmp

Filesize
8KB

Download
memory/908-21-0x0000000003E00000-0x0000000003E02000-memory.dmp

Filesize
8KB

Download
memory/908-22-0x0000000003E30000-0x0000000003E32000-memory.dmp

Filesize
8KB

Download
memory/908-23-0x0000000003E30000-0x0000000003E32000-memory.dmp

Filesize
8KB

Download
memory/908-24-0x0000000003DF0000-0x0000000003DF2000-memory.dmp

Filesize
8KB

Download
memory/908-25-0x00000000024D0000-0x00000000024D2000-memory.dmp

Filesize
8KB

Download
memory/908-26-0x0000000003DE0000-0x0000000003DE2000-memory.dmp

Filesize
8KB

Download
memory/908-27-0x0000000004080000-0x0000000004082000-memory.dmp

Filesize
8KB

Download
memory/908-28-0x0000000003E10000-0x0000000003E12000-memory.dmp

Filesize
8KB

Download
memory/908-29-0x0000000003DD0000-0x0000000003DD2000-memory.dmp

Filesize
8KB

Download
memory/908-30-0x0000000004100000-0x0000000004102000-memory.dmp

Filesize
8KB

Download
memory/908-31-0x0000000004160000-0x0000000004162000-memory.dmp

Filesize
8KB

Download
memory/908-32-0x0000000004170000-0x0000000004172000-memory.dmp

Filesize
8KB

Download
memory/908-33-0x0000000004180000-0x0000000004182000-memory.dmp

Filesize
8KB

Download
memory/908-34-0x00000000041A0000-0x00000000041A2000-memory.dmp

Filesize
8KB

Download
memory/908-35-0x0000000004340000-0x0000000004342000-memory.dmp

Filesize
8KB

Download
memory/908-36-0x0000000004350000-0x0000000004352000-memory.dmp

Filesize
8KB

Download
memory/908-37-0x0000000003FD0000-0x0000000003FD2000-memory.dmp

Filesize
8KB

Download
memory/908-38-0x00000000043E0000-0x00000000043E2000-memory.dmp

Filesize
8KB

Download
memory/908-39-0x0000000003FC0000-0x0000000003FC2000-memory.dmp

Filesize
8KB

Download
memory/908-40-0x00000000043F0000-0x00000000043F2000-memory.dmp

Filesize
8KB

Download
memory/908-41-0x0000000003FB0000-0x0000000003FB2000-memory.dmp

Filesize
8KB

Download
memory/908-42-0x0000000004400000-0x0000000004402000-memory.dmp

Filesize
8KB

Download
memory/908-43-0x0000000003FA0000-0x0000000003FA2000-memory.dmp

Filesize
8KB

Download
memory/908-44-0x0000000003F90000-0x0000000003F92000-memory.dmp

Filesize
8KB

Download
memory/908-45-0x0000000003C30000-0x0000000003C32000-memory.dmp

Filesize
8KB

Download
memory/908-46-0x00000000025E0000-0x00000000025E2000-memory.dmp

Filesize
8KB

Download
memory/908-47-0x00000000046E0000-0x00000000046E2000-memory.dmp

Filesize
8KB

Download
memory/908-48-0x00000000046D0000-0x00000000046D2000-memory.dmp

Filesize
8KB

Download
memory/908-49-0x0000000004640000-0x0000000004642000-memory.dmp

Filesize
8KB

Download
memory/908-50-0x0000000004630000-0x0000000004632000-memory.dmp

Filesize
8KB

Download
memory/908-51-0x0000000003990000-0x0000000003A90000-memory.dmp

Filesize
1024KB

Download
memory/908-53-0x0000000002400000-0x0000000002410000-memory.dmp

Filesize
64KB

Download
memory/908-59-0x00000000023A0000-0x00000000023B0000-memory.dmp

Filesize
64KB

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

Download
memory/2044-66-0x0000000000050000-0x000000000009A000-memory.dmp

Filesize
296KB

Download
memory/2044-67-0x000000000006262B-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads