1d52de6ab23e08662fe5f13d411dd50be238148822501e21db7fd45f07e176cb

General

Target

048cbc4501803809ea6a26f22b88ac1e.exe
Size

326KB
MD5

048cbc4501803809ea6a26f22b88ac1e
SHA1

a78d84e478d61b094a6bb49ec94305bd0a3ab013
SHA256

1d52de6ab23e08662fe5f13d411dd50be238148822501e21db7fd45f07e176cb
SHA512

a4a711060a00ce1d22c28745bd43dfa86576315c1acc53e88543958c260c9118ccaf70cd8e72cbf275ec54c2b1abaa6386715c6e1cdbe068f5351d4a87321160
SSDEEP

6144:tDH8L346R6eMex/g2Dz3yUMfyqJgrq6/7DCc1zTYJRNV+lqVCWluj:hHN6XMu/t3cotQwqVjlu

Score

8^/10

discovery evasion persistence trojan

Malware Config

Signatures

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	048cbc4501803809ea6a26f22b88ac1e.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\CCZRYEQ = "C:\\Windows\\SysWOW64\\ws2helpy.exe"	048cbc4501803809ea6a26f22b88ac1e.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	ws2helpy.exe

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	048cbc4501803809ea6a26f22b88ac1e.exe

Deletes itself 1 IoCs

pid	Process
2664	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2884	ws2helpy.exe

Loads dropped DLL 2 IoCs

pid	Process
2400	048cbc4501803809ea6a26f22b88ac1e.exe
2400	048cbc4501803809ea6a26f22b88ac1e.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	048cbc4501803809ea6a26f22b88ac1e.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ws2helpy.exe	048cbc4501803809ea6a26f22b88ac1e.exe
File opened for modification	C:\Windows\SysWOW64\ws2helpy.exe	048cbc4501803809ea6a26f22b88ac1e.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
2584	ipconfig.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2400	048cbc4501803809ea6a26f22b88ac1e.exe
2400	048cbc4501803809ea6a26f22b88ac1e.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2400	048cbc4501803809ea6a26f22b88ac1e.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2884	ws2helpy.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 2884	2400	048cbc4501803809ea6a26f22b88ac1e.exe	28
PID 2400 wrote to memory of 2884	2400	048cbc4501803809ea6a26f22b88ac1e.exe	28
PID 2400 wrote to memory of 2884	2400	048cbc4501803809ea6a26f22b88ac1e.exe	28
PID 2400 wrote to memory of 2884	2400	048cbc4501803809ea6a26f22b88ac1e.exe	28
PID 2400 wrote to memory of 2664	2400	048cbc4501803809ea6a26f22b88ac1e.exe	31
PID 2400 wrote to memory of 2664	2400	048cbc4501803809ea6a26f22b88ac1e.exe	31
PID 2400 wrote to memory of 2664	2400	048cbc4501803809ea6a26f22b88ac1e.exe	31
PID 2400 wrote to memory of 2664	2400	048cbc4501803809ea6a26f22b88ac1e.exe	31
PID 2884 wrote to memory of 2584	2884	ws2helpy.exe	32
PID 2884 wrote to memory of 2584	2884	ws2helpy.exe	32
PID 2884 wrote to memory of 2584	2884	ws2helpy.exe	32
PID 2884 wrote to memory of 2584	2884	ws2helpy.exe	32

C:\Users\Admin\AppData\Local\Temp\048cbc4501803809ea6a26f22b88ac1e.exe
"C:\Users\Admin\AppData\Local\Temp\048cbc4501803809ea6a26f22b88ac1e.exe"
1⤵
- Adds policy Run key to start application
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2400
- C:\Windows\SysWOW64\ws2helpy.exe
  C:\Windows\SysWOW64\ws2helpy.exe
  2⤵
  - Drops file in Drivers directory
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2884
- - C:\Windows\SysWOW64\ipconfig.exe
    "C:\Windows\system32\ipconfig.exe" /flushdns
    3⤵
    - Gathers network information
    PID:2584
- C:\Windows\SysWOW64\cmd.exe
  /c C:\Users\Admin\AppData\Local\Temp\~unins5669.bat "C:\Users\Admin\AppData\Local\Temp\048cbc4501803809ea6a26f22b88ac1e.exe"
  2⤵
  - Deletes itself
  PID:2664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

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

Query Registry

2

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\~unins5669.bat

Filesize
49B

MD5
9e0a2f5ab30517809b95a1ff1dd98c53

SHA1
5c1eefdf10e67d1e9216e2e3f5e92352d583c9ce

SHA256
97ac9fee75a1f7b63b3115e9c4fb9dda80b1caba26d2fb51325670dee261fe32

SHA512
e959cc1fd48fb1cccf135a697924c775a3812bab211fc7f9b00c5a9d617261d84c5d6f7cb548774c1e8f46811b06ca39c5603d0e10cbcb7b805f9abbe49b9b42

Download Submit
\Windows\SysWOW64\ws2helpy.exe

Filesize
104KB

MD5
b6a15faa92a2e4544490be3ee7cc74c5

SHA1
a47990aa0bb277ef6c0cebb94c7d71f35d553b1b

SHA256
bf4736b7a89a490f8312f6f42382e385f3f728d6b15cd4da3876fd4b4486ffde

SHA512
f65a128d8c2f76bb5136445f2a6da6258acab98eae89125dfd2768acdbb6ef84e9b5601b9f6ff0d32b0b377ea70a11549cedda3176d78573894746b2f9920b91

Download Submit
memory/2400-0-0x0000000000400000-0x0000000000497000-memory.dmp

Filesize
604KB

Download
memory/2400-1-0x0000000000400000-0x0000000000497000-memory.dmp

Filesize
604KB

Download
memory/2400-2-0x0000000000510000-0x000000000059F000-memory.dmp

Filesize
572KB

Download
memory/2400-6-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2400-25-0x0000000000400000-0x0000000000497000-memory.dmp

Filesize
604KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads