277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f

General

Target

277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe
Size

138KB
MD5

6c7e2255031fdbb8efd157c2b4179319
SHA1

f77cf9bb93945feb70c2519debbfbaec476156f3
SHA256

277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f
SHA512

8a992f53395fa4a0afbe9354a39cfee642b9f8b396b21317d16b21029221a5c379fbe16812ea85b4296064157f2053f2413ee5a1aa76c1fa3392d26fb79bb406

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

isynz.exe

pid process

1672 isynz.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1132 cmd.exe

pid	process
1132	cmd.exe

Loads dropped DLL 2 IoCs

Processes:

277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe

pid	process
1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe
1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

isynz.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\Currentversion\Run	isynz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\{182F93A7-3D47-E447-1BAC-DF26EE497B27} = "C:\\Users\\Admin\\AppData\\Roaming\\Zibo\\isynz.exe"	isynz.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe

description	pid	process	target process
PID 1752 set thread context of 1132	1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe	cmd.exe

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

Processes:

277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Privacy	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Privacy\CleanCookies = "0"	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.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\2F0B0601-00000001.eml:OECustomProperty	WinMail.exe

Suspicious behavior: EnumeratesProcesses 32 IoCs

Processes:

isynz.exe

pid	process
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe
1672	isynz.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exeWinMail.execmd.exe

description	pid	process
Token: SeSecurityPrivilege	1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe
Token: SeSecurityPrivilege	1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe
Token: SeSecurityPrivilege	1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe
Token: SeManageVolumePrivilege	1448	WinMail.exe
Token: SeSecurityPrivilege	1132	cmd.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

WinMail.exe

pid process

1448 WinMail.exe

pid	process
1448	WinMail.exe

Suspicious use of WriteProcessMemory 58 IoCs

Processes:

277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exeisynz.exe

description	pid	process	target process
PID 1752 wrote to memory of 1672	1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe	isynz.exe
PID 1752 wrote to memory of 1672	1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe	isynz.exe
PID 1752 wrote to memory of 1672	1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe	isynz.exe
PID 1752 wrote to memory of 1672	1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe	isynz.exe
PID 1672 wrote to memory of 1124	1672	isynz.exe	taskhost.exe
PID 1672 wrote to memory of 1124	1672	isynz.exe	taskhost.exe
PID 1672 wrote to memory of 1124	1672	isynz.exe	taskhost.exe
PID 1672 wrote to memory of 1124	1672	isynz.exe	taskhost.exe
PID 1672 wrote to memory of 1124	1672	isynz.exe	taskhost.exe
PID 1672 wrote to memory of 1172	1672	isynz.exe	Dwm.exe
PID 1672 wrote to memory of 1172	1672	isynz.exe	Dwm.exe
PID 1672 wrote to memory of 1172	1672	isynz.exe	Dwm.exe
PID 1672 wrote to memory of 1172	1672	isynz.exe	Dwm.exe
PID 1672 wrote to memory of 1172	1672	isynz.exe	Dwm.exe
PID 1672 wrote to memory of 1200	1672	isynz.exe	Explorer.EXE
PID 1672 wrote to memory of 1200	1672	isynz.exe	Explorer.EXE
PID 1672 wrote to memory of 1200	1672	isynz.exe	Explorer.EXE
PID 1672 wrote to memory of 1200	1672	isynz.exe	Explorer.EXE
PID 1672 wrote to memory of 1200	1672	isynz.exe	Explorer.EXE
PID 1672 wrote to memory of 1752	1672	isynz.exe	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe
PID 1672 wrote to memory of 1752	1672	isynz.exe	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe
PID 1672 wrote to memory of 1752	1672	isynz.exe	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe
PID 1672 wrote to memory of 1752	1672	isynz.exe	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe
PID 1672 wrote to memory of 1752	1672	isynz.exe	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe
PID 1672 wrote to memory of 1448	1672	isynz.exe	WinMail.exe
PID 1672 wrote to memory of 1448	1672	isynz.exe	WinMail.exe
PID 1672 wrote to memory of 1448	1672	isynz.exe	WinMail.exe
PID 1672 wrote to memory of 1448	1672	isynz.exe	WinMail.exe
PID 1672 wrote to memory of 1448	1672	isynz.exe	WinMail.exe
PID 1752 wrote to memory of 1132	1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe	cmd.exe
PID 1752 wrote to memory of 1132	1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe	cmd.exe
PID 1752 wrote to memory of 1132	1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe	cmd.exe
PID 1752 wrote to memory of 1132	1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe	cmd.exe
PID 1752 wrote to memory of 1132	1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe	cmd.exe
PID 1752 wrote to memory of 1132	1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe	cmd.exe
PID 1752 wrote to memory of 1132	1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe	cmd.exe
PID 1752 wrote to memory of 1132	1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe	cmd.exe
PID 1752 wrote to memory of 1132	1752	277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe	cmd.exe
PID 1672 wrote to memory of 1300	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 1300	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 1300	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 1300	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 1300	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 1588	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 1588	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 1588	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 1588	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 1588	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 1572	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 1572	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 1572	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 1572	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 1572	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 620	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 620	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 620	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 620	1672	isynz.exe	DllHost.exe
PID 1672 wrote to memory of 620	1672	isynz.exe	DllHost.exe

C:\Windows\system32\taskhost.exe
"taskhost.exe"
1⤵
PID:1124

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1200

C:\Users\Admin\AppData\Local\Temp\277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe
"C:\Users\Admin\AppData\Local\Temp\277371d2f69231c4beced4f5898f2a6bd57f1fe7488e50decc6e7ea63ad5677f.exe"
2⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1752

C:\Users\Admin\AppData\Roaming\Zibo\isynz.exe
"C:\Users\Admin\AppData\Roaming\Zibo\isynz.exe"
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1672

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\tmpfb54f73a.bat"
3⤵
- Deletes itself
- Suspicious use of AdjustPrivilegeToken
PID:1132

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1172

C:\Program Files\Windows Mail\WinMail.exe
"C:\Program Files\Windows Mail\WinMail.exe" -Embedding
1⤵
- NTFS ADS
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1448

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:1300

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
1⤵
PID:1588

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

C:\Windows\system32\DllHost.exe
C:\Windows\system32\DllHost.exe /Processid:{F9717507-6651-4EDB-BFF7-AE615179BCCF}
1⤵
PID:620

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpfb54f73a.bat
MD5
a8e82714efa6fda331af2b76f6cf8a81

SHA1
1f8a2d287588ab641b3c5e963e6cd0fc7493f0e3

SHA256
8999f418ab337fb8a7c571b2eff72c7f67454333341d4dcb3556c9bddbac1d57

SHA512
9d25f5f187daceba2cfc9b5ab672ab24d52d934c3e7474bff2c6f45139526628769cd8eeca4d99d981b90b2a62ce34cda16175bb9a9a470a675e001fd64ed2b6

Download Submit
C:\Users\Admin\AppData\Roaming\Sive\tyha.tye
MD5
71858df29843f58b3625d7dddd2a93b6

SHA1
418d4297387e549472de5e9ca864d04970de70f6

SHA256
5bab7cd6032c5ecf1e5af62383a187d7fd31fe5950c0f1d85232246755b12d09

SHA512
1fdacb0a8552e30b60727ca015e084e7a0bc6759c565ad749560e4d6879aed0fa69347769774c9e29cd0e7658395284f0b12c7557ceffd474b6a34a7b0d811f2

Download Submit
C:\Users\Admin\AppData\Roaming\Zibo\isynz.exe
MD5
458ea729786b8e1c8875248829a1835a

SHA1
3b3d2a54aab1b599ddebfa66f4a41c78c44c4fb1

SHA256
e6d4aa6e9c7e0ec498c3e8a7999dfa87eb64561e232ea7b960b0a4cb7637e94c

SHA512
4d502c5e277b9136d7fd77d9bdb0554400f9a2a1a6abe7153291fa2a856c11714504e88412d79099ab0f4cfb91beb6f2bf50b9b46aac8851b0e488819172dd60

Download Submit
C:\Users\Admin\AppData\Roaming\Zibo\isynz.exe
MD5
458ea729786b8e1c8875248829a1835a

SHA1
3b3d2a54aab1b599ddebfa66f4a41c78c44c4fb1

SHA256
e6d4aa6e9c7e0ec498c3e8a7999dfa87eb64561e232ea7b960b0a4cb7637e94c

SHA512
4d502c5e277b9136d7fd77d9bdb0554400f9a2a1a6abe7153291fa2a856c11714504e88412d79099ab0f4cfb91beb6f2bf50b9b46aac8851b0e488819172dd60

Download Submit
\Users\Admin\AppData\Roaming\Zibo\isynz.exe
MD5
458ea729786b8e1c8875248829a1835a

SHA1
3b3d2a54aab1b599ddebfa66f4a41c78c44c4fb1

SHA256
e6d4aa6e9c7e0ec498c3e8a7999dfa87eb64561e232ea7b960b0a4cb7637e94c

SHA512
4d502c5e277b9136d7fd77d9bdb0554400f9a2a1a6abe7153291fa2a856c11714504e88412d79099ab0f4cfb91beb6f2bf50b9b46aac8851b0e488819172dd60

Download Submit
\Users\Admin\AppData\Roaming\Zibo\isynz.exe
MD5
458ea729786b8e1c8875248829a1835a

SHA1
3b3d2a54aab1b599ddebfa66f4a41c78c44c4fb1

SHA256
e6d4aa6e9c7e0ec498c3e8a7999dfa87eb64561e232ea7b960b0a4cb7637e94c

SHA512
4d502c5e277b9136d7fd77d9bdb0554400f9a2a1a6abe7153291fa2a856c11714504e88412d79099ab0f4cfb91beb6f2bf50b9b46aac8851b0e488819172dd60

Download Submit
memory/1132-26-0x0000000000050000-0x0000000000077000-memory.dmp

Filesize
156KB

Download
memory/1132-32-0x00000000000F0000-0x00000000000F1000-memory.dmp

Filesize
4KB

Download
memory/1132-30-0x0000000073B30000-0x0000000073CD3000-memory.dmp

Filesize
1.6MB

Download
memory/1132-28-0x0000000000056B06-mapping.dmp

Download
memory/1448-16-0x0000000003930000-0x0000000003A30000-memory.dmp

Filesize
1024KB

Download
memory/1448-25-0x0000000003930000-0x0000000003B30000-memory.dmp

Filesize
2.0MB

Download
memory/1448-13-0x000007FEFB811000-0x000007FEFB813000-memory.dmp

Filesize
8KB

Download
memory/1448-18-0x0000000003930000-0x0000000003B30000-memory.dmp

Filesize
2.0MB

Download
memory/1448-20-0x0000000003930000-0x0000000003A30000-memory.dmp

Filesize
1024KB

Download
memory/1448-21-0x0000000003930000-0x0000000003B30000-memory.dmp

Filesize
2.0MB

Download
memory/1448-22-0x0000000003A30000-0x0000000003B30000-memory.dmp

Filesize
1024KB

Download
memory/1448-15-0x000007FEF7160000-0x000007FEF73DA000-memory.dmp

Filesize
2.5MB

Download
memory/1448-14-0x000007FEF58B1000-0x000007FEF58B3000-memory.dmp

Filesize
8KB

Download
memory/1588-34-0x000007FEF7160000-0x000007FEF73DA000-memory.dmp

Filesize
2.5MB

Download
memory/1672-5-0x0000000000000000-mapping.dmp

Download
memory/1752-2-0x0000000075EB1000-0x0000000075EB3000-memory.dmp

Filesize
8KB

Download
memory/1752-12-0x0000000073B20000-0x0000000073CC3000-memory.dmp

Filesize
1.6MB

Download
memory/1752-11-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/1752-9-0x00000000002D0000-0x00000000002F7000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads