e2cb3f9721395a339d9a74c3ab14c0d08e74ca58e4d57681bd7007751943b9c0

General

Target

e2cb3f9721395a339d9a74c3ab14c0d08e74ca58e4d57681bd7007751943b9c0.exe
Size

136KB
MD5

91b05230ab23abb202992eba9c4147c8
SHA1

d48199bca41e5b6f7631eff588c73e08015aa131
SHA256

e2cb3f9721395a339d9a74c3ab14c0d08e74ca58e4d57681bd7007751943b9c0
SHA512

b01c5f181c48b67f09eb375c4d638072dedb822121e72ba11c7a69d49ed5c8aa3eedb5bc40fa00f16e8f0eb9442804b506def13a811d9aa5dc5cf4f01113343d
SSDEEP

1536:WGOdtOLkjp6WA8dlOSTX9OX3nnAFgMPpdZdfWj0xAzkpYTHs8:Wfykjp6WpmSsX3nQgcZJWj0xAzkps

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1812	svchost.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\(Default) = "C:\\Windows\\svchost.exe"	e2cb3f9721395a339d9a74c3ab14c0d08e74ca58e4d57681bd7007751943b9c0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\(Default) = "C:\\Windows\\svchost.exe"	svchost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CPQEASYBTTN = "C:\\Windows\\system32\\BttnServ.exe"	svchost.exe

Enumerates connected drives 3 TTPs 4 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\G:	svchost.exe
File opened (read-only)	\??\H:	svchost.exe
File opened (read-only)	\??\E:	svchost.exe
File opened (read-only)	\??\F:	svchost.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\BttnServ.exe	e2cb3f9721395a339d9a74c3ab14c0d08e74ca58e4d57681bd7007751943b9c0.exe
File opened for modification	C:\Windows\SysWOW64\BttnServ.exe	e2cb3f9721395a339d9a74c3ab14c0d08e74ca58e4d57681bd7007751943b9c0.exe
File opened for modification	C:\Windows\SysWOW64\BttnServ.exe	svchost.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\svchost.exe	e2cb3f9721395a339d9a74c3ab14c0d08e74ca58e4d57681bd7007751943b9c0.exe
File opened for modification	C:\Windows\svchost.exe	e2cb3f9721395a339d9a74c3ab14c0d08e74ca58e4d57681bd7007751943b9c0.exe
File opened for modification	C:\Windows\winst.log	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1612	e2cb3f9721395a339d9a74c3ab14c0d08e74ca58e4d57681bd7007751943b9c0.exe
1812	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 1812	1612	e2cb3f9721395a339d9a74c3ab14c0d08e74ca58e4d57681bd7007751943b9c0.exe	26
PID 1612 wrote to memory of 1812	1612	e2cb3f9721395a339d9a74c3ab14c0d08e74ca58e4d57681bd7007751943b9c0.exe	26
PID 1612 wrote to memory of 1812	1612	e2cb3f9721395a339d9a74c3ab14c0d08e74ca58e4d57681bd7007751943b9c0.exe	26
PID 1612 wrote to memory of 1812	1612	e2cb3f9721395a339d9a74c3ab14c0d08e74ca58e4d57681bd7007751943b9c0.exe	26

C:\Users\Admin\AppData\Local\Temp\e2cb3f9721395a339d9a74c3ab14c0d08e74ca58e4d57681bd7007751943b9c0.exe
"C:\Users\Admin\AppData\Local\Temp\e2cb3f9721395a339d9a74c3ab14c0d08e74ca58e4d57681bd7007751943b9c0.exe"
1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1612
- C:\Windows\svchost.exe
  C:\Windows\svchost.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Enumerates connected drives
  - Drops file in System32 directory
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  PID:1812

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\BttnServ.exe

Filesize
136KB

MD5
91b05230ab23abb202992eba9c4147c8

SHA1
d48199bca41e5b6f7631eff588c73e08015aa131

SHA256
e2cb3f9721395a339d9a74c3ab14c0d08e74ca58e4d57681bd7007751943b9c0

SHA512
b01c5f181c48b67f09eb375c4d638072dedb822121e72ba11c7a69d49ed5c8aa3eedb5bc40fa00f16e8f0eb9442804b506def13a811d9aa5dc5cf4f01113343d

Download Submit
C:\Windows\svchost.exe

Filesize
136KB

MD5
91b05230ab23abb202992eba9c4147c8

SHA1
d48199bca41e5b6f7631eff588c73e08015aa131

SHA256
e2cb3f9721395a339d9a74c3ab14c0d08e74ca58e4d57681bd7007751943b9c0

SHA512
b01c5f181c48b67f09eb375c4d638072dedb822121e72ba11c7a69d49ed5c8aa3eedb5bc40fa00f16e8f0eb9442804b506def13a811d9aa5dc5cf4f01113343d

Download Submit
C:\Windows\svchost.exe

Filesize
136KB

MD5
91b05230ab23abb202992eba9c4147c8

SHA1
d48199bca41e5b6f7631eff588c73e08015aa131

SHA256
e2cb3f9721395a339d9a74c3ab14c0d08e74ca58e4d57681bd7007751943b9c0

SHA512
b01c5f181c48b67f09eb375c4d638072dedb822121e72ba11c7a69d49ed5c8aa3eedb5bc40fa00f16e8f0eb9442804b506def13a811d9aa5dc5cf4f01113343d

Download Submit
memory/1612-60-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/1612-61-0x00000000005D0000-0x000000000060B000-memory.dmp

Filesize
236KB

Download
memory/1612-65-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/1812-62-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download
memory/1812-66-0x0000000000400000-0x000000000043B000-memory.dmp

Filesize
236KB

Download

Analysis

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