55c09e2d816cf1cd9dd61aaf5929dde2ad194607013875cec32491865b35216d

General

Target

55c09e2d816cf1cd9dd61aaf5929dde2ad194607013875cec32491865b35216dN.exe
Size

93KB
MD5

6c4d2452cf967605051579479de8e3a0
SHA1

980c0088d1b1ee9cd5e7a0dbc614b09d9d893cfb
SHA256

55c09e2d816cf1cd9dd61aaf5929dde2ad194607013875cec32491865b35216d
SHA512

f4f96d101e53179b5224bc29149df11446161e4a93d56928c6c23e718dcc4e3099a76633b51eac64a9e48101f978cf843971cb259772106c08af475cfc28558a
SSDEEP

1536:AUhSyh6zaoFjuFCVR5jEwzGi1dDVDigS:AUKzaujuCRWi1dRH

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

Processes:

netsh.exe

pid process

2836 netsh.exe

pid	process
2836	netsh.exe

Drops startup file 4 IoCs

Processes:

server.exe

description	ioc	process
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
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\503b153ce98cc50ea4d9ae75c01d9f4eWindows Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\503b153ce98cc50ea4d9ae75c01d9f4eWindows Update.exe	server.exe

Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

2540 server.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service
T1102

Processes:

flow ioc

2 6.tcp.eu.ngrok.io
20 6.tcp.eu.ngrok.io

flow	ioc
2	6.tcp.eu.ngrok.io
20	6.tcp.eu.ngrok.io

Drops file in Windows directory 2 IoCs

Processes:

55c09e2d816cf1cd9dd61aaf5929dde2ad194607013875cec32491865b35216dN.exeserver.exe

description	ioc	process
File created	C:\Windows\server.exe	55c09e2d816cf1cd9dd61aaf5929dde2ad194607013875cec32491865b35216dN.exe
File opened for modification	C:\Windows\server.exe	server.exe

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

Processes:

netsh.exe

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

Processes:

55c09e2d816cf1cd9dd61aaf5929dde2ad194607013875cec32491865b35216dN.exeserver.exenetsh.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	55c09e2d816cf1cd9dd61aaf5929dde2ad194607013875cec32491865b35216dN.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: EnumeratesProcesses 64 IoCs

Processes:

server.exe

pid	process
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe
2540	server.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

server.exe

pid process

2540 server.exe

Suspicious use of AdjustPrivilegeToken 29 IoCs

Processes:

server.exe

description	pid	process
Token: SeDebugPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe
Token: 33	2540	server.exe
Token: SeIncBasePriorityPrivilege	2540	server.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

55c09e2d816cf1cd9dd61aaf5929dde2ad194607013875cec32491865b35216dN.exeserver.exe

description	pid	process	target process
PID 2560 wrote to memory of 2540	2560	55c09e2d816cf1cd9dd61aaf5929dde2ad194607013875cec32491865b35216dN.exe	server.exe
PID 2560 wrote to memory of 2540	2560	55c09e2d816cf1cd9dd61aaf5929dde2ad194607013875cec32491865b35216dN.exe	server.exe
PID 2560 wrote to memory of 2540	2560	55c09e2d816cf1cd9dd61aaf5929dde2ad194607013875cec32491865b35216dN.exe	server.exe
PID 2560 wrote to memory of 2540	2560	55c09e2d816cf1cd9dd61aaf5929dde2ad194607013875cec32491865b35216dN.exe	server.exe
PID 2540 wrote to memory of 2836	2540	server.exe	netsh.exe
PID 2540 wrote to memory of 2836	2540	server.exe	netsh.exe
PID 2540 wrote to memory of 2836	2540	server.exe	netsh.exe
PID 2540 wrote to memory of 2836	2540	server.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\55c09e2d816cf1cd9dd61aaf5929dde2ad194607013875cec32491865b35216dN.exe
"C:\Users\Admin\AppData\Local\Temp\55c09e2d816cf1cd9dd61aaf5929dde2ad194607013875cec32491865b35216dN.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2560
- C:\Windows\server.exe
  "C:\Windows\server.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2540
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Windows\server.exe" "server.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2836

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
4B

MD5
7a8184d640ef6cdf954a7f10b80dc908

SHA1
541efc229f03c114a3e8f8413a293947e2578e82

SHA256
f82cb3b7c58b97a0b99662278b17e1cfb211ac7db5640f116ee2cc78475a1887

SHA512
cfa2535b3f842bc525b5d07053fd0267bbdea903364965971b472a172395c557d716b3caa5330a80c197331ce6b0fa6c1d3cb9bed4ae290fc4a8190479425659

Download Submit
C:\Windows\server.exe

Filesize
93KB

MD5
6c4d2452cf967605051579479de8e3a0

SHA1
980c0088d1b1ee9cd5e7a0dbc614b09d9d893cfb

SHA256
55c09e2d816cf1cd9dd61aaf5929dde2ad194607013875cec32491865b35216d

SHA512
f4f96d101e53179b5224bc29149df11446161e4a93d56928c6c23e718dcc4e3099a76633b51eac64a9e48101f978cf843971cb259772106c08af475cfc28558a

Download Submit
memory/2540-13-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2540-14-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2540-20-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2560-0-0x0000000074891000-0x0000000074892000-memory.dmp

Filesize
4KB

Download
memory/2560-1-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2560-2-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download
memory/2560-12-0x0000000074890000-0x0000000074E3B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads