a78f3743cd22750600d9e73ad8678ee43b9eaa8cbce0efb27858b1dd0ab14e59

General

Target

a78f3743cd22750600d9e73ad8678ee43b9eaa8cbce0efb27858b1dd0ab14e59N.exe
Size

93KB
MD5

b9777e6821659e565e88106afe2aaeb0
SHA1

fa4eadcbcf3b771bb02a24275a1a961f7a6eb253
SHA256

a78f3743cd22750600d9e73ad8678ee43b9eaa8cbce0efb27858b1dd0ab14e59
SHA512

2335abc6f07eff5312d17c63fed9bac9bcca1b16486e56fabe2945c79d5fc3f9644a99c3a1f48b53fa02ef691bb678cc29c062a51657617c21b71d412d20ef0c
SSDEEP

768:dY3GUfhWXxyFcxovUKUJuROprXtWN8eYhYbmXxrjEtCdnl2pi1Rz4Rk3XsGdpTgM:RU5WhIUKcuOJhPhBjEwzGi1dDDDTgS

Score

8^/10

discovery evasion persistence privilege_escalation

Malware Config

Signatures

Modifies Windows Firewall 2 TTPs 1 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
1556	netsh.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	a78f3743cd22750600d9e73ad8678ee43b9eaa8cbce0efb27858b1dd0ab14e59N.exe

Drops startup file 4 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\642760713eaf9ba9d83af2740513d99bWindows Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\642760713eaf9ba9d83af2740513d99bWindows Update.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
1512	server.exe

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

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a78f3743cd22750600d9e73ad8678ee43b9eaa8cbce0efb27858b1dd0ab14e59N.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1512	server.exe

Suspicious use of AdjustPrivilegeToken 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	1512	server.exe
Token: 33	1512	server.exe
Token: SeIncBasePriorityPrivilege	1512	server.exe
Token: 33	1512	server.exe
Token: SeIncBasePriorityPrivilege	1512	server.exe
Token: 33	1512	server.exe
Token: SeIncBasePriorityPrivilege	1512	server.exe
Token: 33	1512	server.exe
Token: SeIncBasePriorityPrivilege	1512	server.exe
Token: 33	1512	server.exe
Token: SeIncBasePriorityPrivilege	1512	server.exe
Token: 33	1512	server.exe
Token: SeIncBasePriorityPrivilege	1512	server.exe
Token: 33	1512	server.exe
Token: SeIncBasePriorityPrivilege	1512	server.exe
Token: 33	1512	server.exe
Token: SeIncBasePriorityPrivilege	1512	server.exe
Token: 33	1512	server.exe
Token: SeIncBasePriorityPrivilege	1512	server.exe
Token: 33	1512	server.exe
Token: SeIncBasePriorityPrivilege	1512	server.exe
Token: 33	1512	server.exe
Token: SeIncBasePriorityPrivilege	1512	server.exe
Token: 33	1512	server.exe
Token: SeIncBasePriorityPrivilege	1512	server.exe
Token: 33	1512	server.exe
Token: SeIncBasePriorityPrivilege	1512	server.exe
Token: 33	1512	server.exe
Token: SeIncBasePriorityPrivilege	1512	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2268 wrote to memory of 1512	2268	a78f3743cd22750600d9e73ad8678ee43b9eaa8cbce0efb27858b1dd0ab14e59N.exe	86
PID 2268 wrote to memory of 1512	2268	a78f3743cd22750600d9e73ad8678ee43b9eaa8cbce0efb27858b1dd0ab14e59N.exe	86
PID 2268 wrote to memory of 1512	2268	a78f3743cd22750600d9e73ad8678ee43b9eaa8cbce0efb27858b1dd0ab14e59N.exe	86
PID 1512 wrote to memory of 1556	1512	server.exe	90
PID 1512 wrote to memory of 1556	1512	server.exe	90
PID 1512 wrote to memory of 1556	1512	server.exe	90

C:\Users\Admin\AppData\Local\Temp\a78f3743cd22750600d9e73ad8678ee43b9eaa8cbce0efb27858b1dd0ab14e59N.exe
"C:\Users\Admin\AppData\Local\Temp\a78f3743cd22750600d9e73ad8678ee43b9eaa8cbce0efb27858b1dd0ab14e59N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2268
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1512
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:1556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Privilege Escalation

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Event Triggered Execution

1

T1546

Netsh Helper DLL

1

T1546.007

Defense Evasion

Impair Defenses

1

T1562

Disable or Modify System Firewall

1

T1562.004

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\server.exe

Filesize
93KB

MD5
b9777e6821659e565e88106afe2aaeb0

SHA1
fa4eadcbcf3b771bb02a24275a1a961f7a6eb253

SHA256
a78f3743cd22750600d9e73ad8678ee43b9eaa8cbce0efb27858b1dd0ab14e59

SHA512
2335abc6f07eff5312d17c63fed9bac9bcca1b16486e56fabe2945c79d5fc3f9644a99c3a1f48b53fa02ef691bb678cc29c062a51657617c21b71d412d20ef0c

Download Submit
C:\Users\Admin\AppData\Roaming\app

Filesize
5B

MD5
a65a8cc18c0fdcac3b78ed8f032e2f98

SHA1
9087f7aaf4edf3b132348b1e5dfa7a678d57d40e

SHA256
ca1c5c735384c64968c987e3e608cb48a3cbd73e870f1bc6d60f2b24f9445e3a

SHA512
8e56c9aa0c90fb30b488fa72a0b9d40e69c357e32d8e6f9d5a299dfbf9df8c896c28684d7163972019ab53dfcfe35dc75e9b305e07c81b9984a410e04b96186d

Download Submit
memory/1512-14-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/1512-15-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/1512-21-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/2268-0-0x0000000075122000-0x0000000075123000-memory.dmp

Filesize
4KB

Download
memory/2268-1-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/2268-2-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download
memory/2268-13-0x0000000075120000-0x00000000756D1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads