b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767

General

Target

b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe
Size

45KB
MD5

4bc849538b01eb61b47c3432c13482e0
SHA1

232c7dddcbb3cac9db72c2fa446c5cd39bb35a13
SHA256

b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767
SHA512

362787d9d11ba8c50835050c39b6aa2946f2112bdb4eecc2b6c3bee23fcb786479431210bfba0e95600f684e9c0e917054e62f1df9995435f12bda983d22f7ce
SSDEEP

768:nm+G8YMyvdQrvJsnkgJFnvQ4BONDX0rnskgBorVzRHyGnRC2/1H5Vi:nmjxvOzCvvo4BcX01gBorVzciCc

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\Web Event Logger = "{79FEACFF-FFCE-815E-A900-316290B5B738}"	b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe

Executes dropped EXE 1 IoCs

Processes:

Iebogk32.exe

pid process

604 Iebogk32.exe

pid	process
604	Iebogk32.exe

Loads dropped DLL 2 IoCs

Processes:

b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe

pid	process
1292	b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe
1292	b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe

Drops file in System32 directory 3 IoCs

Processes:

b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe

description	ioc	process
File created	C:\Windows\SysWOW64\Iebogk32.exe	b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe
File opened for modification	C:\Windows\SysWOW64\Iebogk32.exe	b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe
File created	C:\Windows\SysWOW64\Hfnfhdjc.dll	b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe

Modifies data under HKEY_USERS 2 IoCs

Processes:

Iebogk32.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\BrowseNewProcess	Iebogk32.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\BrowseNewProcess\BrowseNewProcess = "yes"	Iebogk32.exe

Modifies registry class 6 IoCs

Processes:

b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}	b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32\ = "C:\\Windows\\SysWow64\\Hfnfhdjc.dll"	b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32\ThreadingModel = "Apartment"	b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{79FEACFF-FFCE-815E-A900-316290B5B738}\InProcServer32	b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Iebogk32.exe

pid process

604 Iebogk32.exe

pid	process
604	Iebogk32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe

description	pid	process	target process
PID 1292 wrote to memory of 604	1292	b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe	Iebogk32.exe
PID 1292 wrote to memory of 604	1292	b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe	Iebogk32.exe
PID 1292 wrote to memory of 604	1292	b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe	Iebogk32.exe
PID 1292 wrote to memory of 604	1292	b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe	Iebogk32.exe

C:\Users\Admin\AppData\Local\Temp\b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe
"C:\Users\Admin\AppData\Local\Temp\b13940f41cde4f6b2d967335899cf23a25f41c885669347c636d9cbd9493d767.exe"
1⤵
- Adds autorun key to be loaded by Explorer.exe on startup
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1292

C:\Windows\SysWOW64\Iebogk32.exe
C:\Windows\system32\Iebogk32.exe
2⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
- Suspicious behavior: GetForegroundWindowSpam
PID:604

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Windows\SysWOW64\Iebogk32.exe
Filesize
45KB

MD5
7f9a971cd59311f7ce66969a1b211b1d

SHA1
3693485816ad16a6cb1ef1b6ab706731c83d3976

SHA256
f3f2cf4caa5f640930113415a4aa79d2085b34bf708871c4eb766fb31cd7a102

SHA512
8699c72ab605a7e272026f9ad64819f6d8857e9179ea0b6e112caf5e3b439d2c083e08cabbc0edfa9ab737c62f61dc795966d09b6fd2dc3d505003f7f8268624

Download Submit
\Windows\SysWOW64\Iebogk32.exe
Filesize
45KB

MD5
7f9a971cd59311f7ce66969a1b211b1d

SHA1
3693485816ad16a6cb1ef1b6ab706731c83d3976

SHA256
f3f2cf4caa5f640930113415a4aa79d2085b34bf708871c4eb766fb31cd7a102

SHA512
8699c72ab605a7e272026f9ad64819f6d8857e9179ea0b6e112caf5e3b439d2c083e08cabbc0edfa9ab737c62f61dc795966d09b6fd2dc3d505003f7f8268624

Download Submit
\Windows\SysWOW64\Iebogk32.exe
Filesize
45KB

MD5
7f9a971cd59311f7ce66969a1b211b1d

SHA1
3693485816ad16a6cb1ef1b6ab706731c83d3976

SHA256
f3f2cf4caa5f640930113415a4aa79d2085b34bf708871c4eb766fb31cd7a102

SHA512
8699c72ab605a7e272026f9ad64819f6d8857e9179ea0b6e112caf5e3b439d2c083e08cabbc0edfa9ab737c62f61dc795966d09b6fd2dc3d505003f7f8268624

Download Submit
memory/604-58-0x0000000000000000-mapping.dmp

Download
memory/604-60-0x0000000074FD1000-0x0000000074FD3000-memory.dmp

Filesize
8KB

Download
memory/604-61-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/604-62-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1292-55-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1292-56-0x0000000000220000-0x000000000024F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads