cf0b586b8bb3a236f839c3bef887406591bd95fdbef7d9cb2ad99fc127557833

Analysis

max time kernel
149s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-11-2024 01:21

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General

Target

Enigma.exe
Size

93KB
MD5

5a3fcabcbac79fd782d56cebf66cfcdf
SHA1

c65e6972ee7a04a4b485f657866038c56ca07811
SHA256

cf0b586b8bb3a236f839c3bef887406591bd95fdbef7d9cb2ad99fc127557833
SHA512

f679f54b27bcd326dcad7ba591ebc92d71dca9cc28f49b17200580a32c30127dfb241e8d67c79f5fbbab2bb5357ba5583a0b20a978938475f824ecc02167c634
SSDEEP

768:6Y3c9nD9O/pBcxYsbae6GIXb9pDX2t9zPL0OXLeuXxrjEtCdnl2pi1Rz4Rk3GsG9:a9xOx6baIa9ROj00ljEwzGi1dDiDZgS

Score

8^/10

discovery evasion persistence privilege_escalation

Malware Config

Signatures

Disables Task Manager via registry modification
evasion

Modifies Windows Firewall 2 TTPs 3 IoCs

evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
3756	netsh.exe
3948	netsh.exe
4820	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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	Enigma.exe

Drops startup file 6 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\4e5d83e786e40074eef5a2bf33513b88Windows Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\4e5d83e786e40074eef5a2bf33513b88Windows Update.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Explower.exe	server.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Microsoft Corporation.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
3036	server.exe

Drops autorun.inf file 1 TTPs 4 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File created	C:\autorun.inf	server.exe
File opened for modification	C:\autorun.inf	server.exe
File created	F:\autorun.inf	server.exe
File opened for modification	F:\autorun.inf	server.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Explower.exe	server.exe
File opened for modification	C:\Windows\SysWOW64\Explower.exe	server.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Explower.exe	server.exe
File opened for modification	C:\Program Files (x86)\Explower.exe	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 9 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 value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
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
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Enigma.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3036	server.exe

Suspicious use of AdjustPrivilegeToken 37 IoCs

description	pid	Process
Token: SeDebugPrivilege	3036	server.exe
Token: 33	3036	server.exe
Token: SeIncBasePriorityPrivilege	3036	server.exe
Token: 33	3036	server.exe
Token: SeIncBasePriorityPrivilege	3036	server.exe
Token: 33	3036	server.exe
Token: SeIncBasePriorityPrivilege	3036	server.exe
Token: 33	3036	server.exe
Token: SeIncBasePriorityPrivilege	3036	server.exe
Token: 33	3036	server.exe
Token: SeIncBasePriorityPrivilege	3036	server.exe
Token: 33	3036	server.exe
Token: SeIncBasePriorityPrivilege	3036	server.exe
Token: 33	3036	server.exe
Token: SeIncBasePriorityPrivilege	3036	server.exe
Token: 33	3036	server.exe
Token: SeIncBasePriorityPrivilege	3036	server.exe
Token: 33	3036	server.exe
Token: SeIncBasePriorityPrivilege	3036	server.exe
Token: 33	3036	server.exe
Token: SeIncBasePriorityPrivilege	3036	server.exe
Token: 33	3036	server.exe
Token: SeIncBasePriorityPrivilege	3036	server.exe
Token: 33	3036	server.exe
Token: SeIncBasePriorityPrivilege	3036	server.exe
Token: 33	3036	server.exe
Token: SeIncBasePriorityPrivilege	3036	server.exe
Token: 33	3036	server.exe
Token: SeIncBasePriorityPrivilege	3036	server.exe
Token: 33	3036	server.exe
Token: SeIncBasePriorityPrivilege	3036	server.exe
Token: 33	3036	server.exe
Token: SeIncBasePriorityPrivilege	3036	server.exe
Token: 33	3036	server.exe
Token: SeIncBasePriorityPrivilege	3036	server.exe
Token: 33	3036	server.exe
Token: SeIncBasePriorityPrivilege	3036	server.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4512 wrote to memory of 3036	4512	Enigma.exe	86
PID 4512 wrote to memory of 3036	4512	Enigma.exe	86
PID 4512 wrote to memory of 3036	4512	Enigma.exe	86
PID 3036 wrote to memory of 3756	3036	server.exe	89
PID 3036 wrote to memory of 3756	3036	server.exe	89
PID 3036 wrote to memory of 3756	3036	server.exe	89
PID 3036 wrote to memory of 3948	3036	server.exe	93
PID 3036 wrote to memory of 3948	3036	server.exe	93
PID 3036 wrote to memory of 3948	3036	server.exe	93
PID 3036 wrote to memory of 4820	3036	server.exe	94
PID 3036 wrote to memory of 4820	3036	server.exe	94
PID 3036 wrote to memory of 4820	3036	server.exe	94

C:\Users\Admin\AppData\Local\Temp\Enigma.exe
"C:\Users\Admin\AppData\Local\Temp\Enigma.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4512
- C:\Users\Admin\AppData\Local\Temp\server.exe
  "C:\Users\Admin\AppData\Local\Temp\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Drops autorun.inf file
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3036
- - 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:3756
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall delete allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe"
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:3948
- - 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:4820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
93KB

MD5
5a3fcabcbac79fd782d56cebf66cfcdf

SHA1
c65e6972ee7a04a4b485f657866038c56ca07811

SHA256
cf0b586b8bb3a236f839c3bef887406591bd95fdbef7d9cb2ad99fc127557833

SHA512
f679f54b27bcd326dcad7ba591ebc92d71dca9cc28f49b17200580a32c30127dfb241e8d67c79f5fbbab2bb5357ba5583a0b20a978938475f824ecc02167c634

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

Filesize
5B

MD5
24e9e7d7eea4de90c8fc67ae1145abf2

SHA1
dd9bb46ccc6340ca892cf17ebe32b9bdbadee2d1

SHA256
bd6c1d15579254e8879ada07376f93cb2e959f45670374892fde2efaf4194f6c

SHA512
5572afd61c7ba666515a987f23ad0a05ab753bdc28cfa492adb30200207427a4a38699d3b7981e0750414775a4ce72a209511951d38a8673c709b08774fca01f

Download Submit
memory/3036-14-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/3036-15-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/3036-16-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/3036-47-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/4512-0-0x0000000074BE2000-0x0000000074BE3000-memory.dmp

Filesize
4KB

Download
memory/4512-1-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/4512-2-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download
memory/4512-12-0x0000000074BE0000-0x0000000075191000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads