ab70718453b398f9ec798d5150c51f0ccb91de22345388e00cd94a0ec42d9d95

General

Target

3af1558bce50b6a2393dbf3aa23b6685.exe
Size

83KB
MD5

3af1558bce50b6a2393dbf3aa23b6685
SHA1

411ff922a2cb6162ae336c8104b72e500b5b709d
SHA256

ab70718453b398f9ec798d5150c51f0ccb91de22345388e00cd94a0ec42d9d95
SHA512

53b2fd03e7a8f2fc3f7f9a30706f10ab7f7aacd446448290be25670353975a86284e52e410c093c3b88cc1557883ec3d50f222183a597af25f86fb062785427d
SSDEEP

1536:0OgrF9Gj6Fz4EVCQbLs8yRGBl14FaYMswlL5n+XVFlxkBp6WJ1GsNJOfbFqD:0Jyjkwu6FaYMswbnmVTxkBp6WJUs7OFq

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

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	3af1558bce50b6a2393dbf3aa23b6685.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\WinDir = "{bfbc1a78-cddd-1672-876e-324d6c4686e9}"	3af1558bce50b6a2393dbf3aa23b6685.exe

Deletes itself 1 IoCs

pid	Process
2600	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
2716	3af1558bce50b6a2393dbf3aa23b6685.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\NTboot.exe	3af1558bce50b6a2393dbf3aa23b6685.exe
File opened for modification	C:\Windows\SysWOW64\NTboot.exe	3af1558bce50b6a2393dbf3aa23b6685.exe
File created	C:\Windows\SysWOW64\NTboot32.dll	3af1558bce50b6a2393dbf3aa23b6685.exe

Modifies registry class 6 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{bfbc1a78-cddd-1672-876e-324d6c4686e9}\InProcServer32\ = "NTboot32.dll"	3af1558bce50b6a2393dbf3aa23b6685.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{bfbc1a78-cddd-1672-876e-324d6c4686e9}\InProcServer32\ThreadingModel = "Apartment"	3af1558bce50b6a2393dbf3aa23b6685.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{bfbc1a78-cddd-1672-876e-324d6c4686e9}\InProcServer32	3af1558bce50b6a2393dbf3aa23b6685.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	3af1558bce50b6a2393dbf3aa23b6685.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	3af1558bce50b6a2393dbf3aa23b6685.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{bfbc1a78-cddd-1672-876e-324d6c4686e9}	3af1558bce50b6a2393dbf3aa23b6685.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2716	3af1558bce50b6a2393dbf3aa23b6685.exe
2716	3af1558bce50b6a2393dbf3aa23b6685.exe
2716	3af1558bce50b6a2393dbf3aa23b6685.exe
2716	3af1558bce50b6a2393dbf3aa23b6685.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2716	3af1558bce50b6a2393dbf3aa23b6685.exe
Token: SeIncBasePriorityPrivilege	2716	3af1558bce50b6a2393dbf3aa23b6685.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2716 wrote to memory of 2876	2716	3af1558bce50b6a2393dbf3aa23b6685.exe	29
PID 2716 wrote to memory of 2876	2716	3af1558bce50b6a2393dbf3aa23b6685.exe	29
PID 2716 wrote to memory of 2876	2716	3af1558bce50b6a2393dbf3aa23b6685.exe	29
PID 2716 wrote to memory of 2876	2716	3af1558bce50b6a2393dbf3aa23b6685.exe	29
PID 2716 wrote to memory of 2876	2716	3af1558bce50b6a2393dbf3aa23b6685.exe	29
PID 2716 wrote to memory of 2876	2716	3af1558bce50b6a2393dbf3aa23b6685.exe	29
PID 2716 wrote to memory of 2600	2716	3af1558bce50b6a2393dbf3aa23b6685.exe	30
PID 2716 wrote to memory of 2600	2716	3af1558bce50b6a2393dbf3aa23b6685.exe	30
PID 2716 wrote to memory of 2600	2716	3af1558bce50b6a2393dbf3aa23b6685.exe	30
PID 2716 wrote to memory of 2600	2716	3af1558bce50b6a2393dbf3aa23b6685.exe	30

C:\Users\Admin\AppData\Local\Temp\3af1558bce50b6a2393dbf3aa23b6685.exe
"C:\Users\Admin\AppData\Local\Temp\3af1558bce50b6a2393dbf3aa23b6685.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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2716
- C:\Program Files\Internet Explorer\iexplore.exe
  "C:\Program Files\Internet Explorer\iexplore.exe"
  2⤵
  PID:2876
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\3AF155~1.EXE > nul
  2⤵
  - Deletes itself
  PID:2600

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Windows\SysWOW64\NTboot32.dll

Filesize
132KB

MD5
e4fe4485807c5c0d5324c33560e5b93d

SHA1
d2720527e9b65c221a0fe57ea30a5e4cd76aa1f7

SHA256
f189615c83e1a53a833105242ed30e257b8d7cb4fdcd3f9d31bbc3cc09b047bd

SHA512
0e52e63d6195bbe7ef384bd43906b19da99e5d197b1b7d9c35190465bb9f957758f8c6e6ded7a9669ee9636cc9b6d38bc4217fa4df4c412c15ddd7499aa0e0d7

Download Submit
memory/2716-0-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/2716-5-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads