920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f

General

Target

920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe
Size

150KB
MD5

3febcd7efed09122dcc409ddd7f7a0e7
SHA1

0dff502578995870aca56c9b7b931a1e761ce5aa
SHA256

920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f
SHA512

3a0a10bc5f427e86aa8dfd756fa4c63b80e58479aa33c684d90e31a6a4f3e90af1a1f7f1aefd295d827b9b85a441aed6741482e4b58092d9e8edd7e99a2b15f9
SSDEEP

3072:two2oNZOD4kU2LjZjPCOw9WW7l44vMWhNU8vsVFc3qqF3/EbKhZQpL:Oss4uLtC3WyNvM3c3FPEbaZa

Score

7^/10

adware persistence stealer

Malware Config

Signatures

Loads dropped DLL 2 IoCs

Processes:

regsvr32.exe920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe

pid process

1360 regsvr32.exe
1228 920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe

pid	process
1360	regsvr32.exe
1228	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\cybansos = "C:\\Windows\\system32\\cyban.exe"	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe

Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{7F23592B-8F2C-4C08-83A8-BBE01BF9CC64}	regsvr32.exe

Drops file in System32 directory 6 IoCs

Processes:

920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\cyban.exe	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe
File created	C:\Windows\SysWOW64\cyban.exe	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe
File opened for modification	C:\Windows\SysWOW64\ieban0.dll	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe
File created	C:\Windows\SysWOW64\ieban0.dll	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe
File opened for modification	C:\Windows\SysWOW64\cyban0.dll	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe
File created	C:\Windows\SysWOW64\cyban0.dll	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1340 1228 WerFault.exe 920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe

pid	pid_target	process	target process
1340	1228	WerFault.exe	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe

Modifies registry class 42 IoCs

Processes:

regsvr32.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7F235922-8F2C-4C08-83A8-BBE01BF9CC64}\1.0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7F235922-8F2C-4C08-83A8-BBE01BF9CC64}\1.0\FLAGS\ = "0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7F235922-8F2C-4C08-83A8-BBE01BF9CC64}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7F235922-8F2C-4C08-83A8-BBE01BF9CC64}\1.0\0\win32\ = "C:\\Windows\\SysWow64\\ieban0.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7F23592C-8F2C-4C08-83A8-BBE01BF9CC64}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7F23592C-8F2C-4C08-83A8-BBE01BF9CC64}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\ = "IEHlprObj Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7F23592B-8F2C-4C08-83A8-BBE01BF9CC64}\VersionIndependentProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7F23592B-8F2C-4C08-83A8-BBE01BF9CC64}\VersionIndependentProgID\ = "IEHlprObj.IEHlprObj"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7F23592B-8F2C-4C08-83A8-BBE01BF9CC64}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7F23592C-8F2C-4C08-83A8-BBE01BF9CC64}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7F23592C-8F2C-4C08-83A8-BBE01BF9CC64}\TypeLib\ = "{7F235922-8F2C-4C08-83A8-BBE01BF9CC64}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7F235922-8F2C-4C08-83A8-BBE01BF9CC64}\1.0\ = "IEHelper 1.0 Type Library"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7F23592C-8F2C-4C08-83A8-BBE01BF9CC64}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\ = "IEHlprObj Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7F23592C-8F2C-4C08-83A8-BBE01BF9CC64}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7F23592C-8F2C-4C08-83A8-BBE01BF9CC64}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7F23592C-8F2C-4C08-83A8-BBE01BF9CC64}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7F23592B-8F2C-4C08-83A8-BBE01BF9CC64}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7F235922-8F2C-4C08-83A8-BBE01BF9CC64}\1.0\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7F235922-8F2C-4C08-83A8-BBE01BF9CC64}\1.0\HELPDIR\ = "C:\\Windows\\SysWow64\\"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7F23592C-8F2C-4C08-83A8-BBE01BF9CC64}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7F23592C-8F2C-4C08-83A8-BBE01BF9CC64}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7F23592B-8F2C-4C08-83A8-BBE01BF9CC64}\ProgID\ = "IEHlprObj.IEHlprObj.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7F23592B-8F2C-4C08-83A8-BBE01BF9CC64}\InprocServer32\ = "C:\\Windows\\SysWow64\\ieban0.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7F235922-8F2C-4C08-83A8-BBE01BF9CC64}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7F235922-8F2C-4C08-83A8-BBE01BF9CC64}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7F23592C-8F2C-4C08-83A8-BBE01BF9CC64}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj\CurVer	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{7F235922-8F2C-4C08-83A8-BBE01BF9CC64}\1.0\HELPDIR	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7F23592B-8F2C-4C08-83A8-BBE01BF9CC64}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7F23592B-8F2C-4C08-83A8-BBE01BF9CC64}\ = "IEHlprObj Class"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7F23592B-8F2C-4C08-83A8-BBE01BF9CC64}\ProgID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7F23592B-8F2C-4C08-83A8-BBE01BF9CC64}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7F23592C-8F2C-4C08-83A8-BBE01BF9CC64}\ = "IIEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\Interface\{7F23592C-8F2C-4C08-83A8-BBE01BF9CC64}\TypeLib\ = "{7F235922-8F2C-4C08-83A8-BBE01BF9CC64}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{7F23592C-8F2C-4C08-83A8-BBE01BF9CC64}\ = "IIEHlprObj"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\IEHlprObj.IEHlprObj.1\CLSID\ = "{7F23592B-8F2C-4C08-83A8-BBE01BF9CC64}"	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe

pid	process
1228	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe
1228	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe
1228	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe

description	pid	process	target process
PID 1228 wrote to memory of 1360	1228	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe	regsvr32.exe
PID 1228 wrote to memory of 1360	1228	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe	regsvr32.exe
PID 1228 wrote to memory of 1360	1228	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe	regsvr32.exe
PID 1228 wrote to memory of 1360	1228	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe	regsvr32.exe
PID 1228 wrote to memory of 1360	1228	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe	regsvr32.exe
PID 1228 wrote to memory of 1360	1228	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe	regsvr32.exe
PID 1228 wrote to memory of 1360	1228	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe	regsvr32.exe
PID 1228 wrote to memory of 1272	1228	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe	Explorer.EXE
PID 1228 wrote to memory of 1340	1228	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe	WerFault.exe
PID 1228 wrote to memory of 1340	1228	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe	WerFault.exe
PID 1228 wrote to memory of 1340	1228	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe	WerFault.exe
PID 1228 wrote to memory of 1340	1228	920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe	WerFault.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1272

C:\Users\Admin\AppData\Local\Temp\920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe
"C:\Users\Admin\AppData\Local\Temp\920dce9b20e7f03b76fe00781414f97abcdee0fb08cf47781b3d4e25e3f2a74f.exe"
2⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1228

C:\Windows\SysWOW64\regsvr32.exe
C:\Windows\system32\regsvr32.exe /s C:\Windows\system32\ieban0.dll
3⤵
- Loads dropped DLL
- Installs/modifies Browser Helper Object
- Modifies registry class
PID:1360

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1228 -s 160
3⤵
- Program crash
PID:1340

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Browser Extensions

1

T1176

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:\Windows\SysWOW64\ieban0.dll
Filesize
78KB

MD5
fda63a3a4f8aa9e34e84493c42adde8a

SHA1
c3301ddc94d90f06376d8c86ce4971321ace9dad

SHA256
e7d560a7245452420f75b62e3aba12baac5bb22f405af6aa0d44b0d682cc23cd

SHA512
37683c4d381b583a23aa0f46b35f0d4b1d7d1951f9b70607cdbf301ca094568105180986dbecc13f96bfce0acbce3e62df6d7c8d3c7faf102b2d3096e8540c92

Download Submit
\Windows\SysWOW64\cyban0.dll
Filesize
90KB

MD5
2a404c8d7cce4e7482a59b3af98cb94f

SHA1
e2e8a26a5c56d4d637becb8f428a253249368501

SHA256
036528f2527a985b33918c206da17faf59494e425136a937f3cd23f78d442b0d

SHA512
3e4a2a6aafdf4717803f7dff7d4c94fd85a45190933524368f09d1a66e1366400dfbf0f11c3b87a3a456135a6a2e498decf021d27b983e65d3d5cd9c444813ae

Download Submit
\Windows\SysWOW64\ieban0.dll
Filesize
78KB

MD5
fda63a3a4f8aa9e34e84493c42adde8a

SHA1
c3301ddc94d90f06376d8c86ce4971321ace9dad

SHA256
e7d560a7245452420f75b62e3aba12baac5bb22f405af6aa0d44b0d682cc23cd

SHA512
37683c4d381b583a23aa0f46b35f0d4b1d7d1951f9b70607cdbf301ca094568105180986dbecc13f96bfce0acbce3e62df6d7c8d3c7faf102b2d3096e8540c92

Download Submit
memory/1228-54-0x0000000075091000-0x0000000075093000-memory.dmp

Filesize
8KB

Download
memory/1228-59-0x0000000000400000-0x00000000004D9000-memory.dmp

Filesize
868KB

Download
memory/1228-62-0x0000000010000000-0x000000001007A000-memory.dmp

Filesize
488KB

Download
memory/1340-61-0x0000000000000000-mapping.dmp

Download
memory/1360-55-0x0000000000000000-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