c05810490197b27f3c99a34c41cd1bc5dc195c7d1c29eef1212fa2fa96ec9482

General

Target

c05810490197b27f3c99a34c41cd1bc5dc195c7d1c29eef1212fa2fa96ec9482N.exe
Size

93KB
MD5

891605f96c3344c75508bbe0497719a0
SHA1

cf1113f3415b43dc0f28cc2d8e24a4d231bd094b
SHA256

c05810490197b27f3c99a34c41cd1bc5dc195c7d1c29eef1212fa2fa96ec9482
SHA512

65075640fad199984554bcca2bf3cf97c723e924e5fca7dcf889adf884004251962da05941f7a7517d4c79e056fde033077f932c613bad398c9887d76909aad7
SSDEEP

768:TY3/upD9O/pBcxYsbae6GIXb9pDX2b98PL0OXLeuXxrjEtCdnl2pi1Rz4Rk3ysGb:6uLOx6baIa9RPj00ljEwzGi1dDODHgS

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
1504	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-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	c05810490197b27f3c99a34c41cd1bc5dc195c7d1c29eef1212fa2fa96ec9482N.exe

Drops startup file 4 IoCs

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\91fbfc101cf843209df3ad6806423342Windows Update.exe	server.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\91fbfc101cf843209df3ad6806423342Windows Update.exe	server.exe

Executes dropped EXE 1 IoCs

pid	Process
2792	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 opened for modification	C:\autorun.inf	server.exe
File created	F:\autorun.inf	server.exe
File opened for modification	F:\autorun.inf	server.exe
File created	C:\autorun.inf	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	c05810490197b27f3c99a34c41cd1bc5dc195c7d1c29eef1212fa2fa96ec9482N.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
2792	server.exe

Suspicious use of AdjustPrivilegeToken 29 IoCs

description	pid	Process
Token: SeDebugPrivilege	2792	server.exe
Token: 33	2792	server.exe
Token: SeIncBasePriorityPrivilege	2792	server.exe
Token: 33	2792	server.exe
Token: SeIncBasePriorityPrivilege	2792	server.exe
Token: 33	2792	server.exe
Token: SeIncBasePriorityPrivilege	2792	server.exe
Token: 33	2792	server.exe
Token: SeIncBasePriorityPrivilege	2792	server.exe
Token: 33	2792	server.exe
Token: SeIncBasePriorityPrivilege	2792	server.exe
Token: 33	2792	server.exe
Token: SeIncBasePriorityPrivilege	2792	server.exe
Token: 33	2792	server.exe
Token: SeIncBasePriorityPrivilege	2792	server.exe
Token: 33	2792	server.exe
Token: SeIncBasePriorityPrivilege	2792	server.exe
Token: 33	2792	server.exe
Token: SeIncBasePriorityPrivilege	2792	server.exe
Token: 33	2792	server.exe
Token: SeIncBasePriorityPrivilege	2792	server.exe
Token: 33	2792	server.exe
Token: SeIncBasePriorityPrivilege	2792	server.exe
Token: 33	2792	server.exe
Token: SeIncBasePriorityPrivilege	2792	server.exe
Token: 33	2792	server.exe
Token: SeIncBasePriorityPrivilege	2792	server.exe
Token: 33	2792	server.exe
Token: SeIncBasePriorityPrivilege	2792	server.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 2792	3048	c05810490197b27f3c99a34c41cd1bc5dc195c7d1c29eef1212fa2fa96ec9482N.exe	82
PID 3048 wrote to memory of 2792	3048	c05810490197b27f3c99a34c41cd1bc5dc195c7d1c29eef1212fa2fa96ec9482N.exe	82
PID 3048 wrote to memory of 2792	3048	c05810490197b27f3c99a34c41cd1bc5dc195c7d1c29eef1212fa2fa96ec9482N.exe	82
PID 2792 wrote to memory of 1504	2792	server.exe	85
PID 2792 wrote to memory of 1504	2792	server.exe	85
PID 2792 wrote to memory of 1504	2792	server.exe	85

C:\Users\Admin\AppData\Local\Temp\c05810490197b27f3c99a34c41cd1bc5dc195c7d1c29eef1212fa2fa96ec9482N.exe
"C:\Users\Admin\AppData\Local\Temp\c05810490197b27f3c99a34c41cd1bc5dc195c7d1c29eef1212fa2fa96ec9482N.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3048
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2792
- - 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:1504

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

1

T1091

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

Replication Through Removable Media

1

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
93KB

MD5
891605f96c3344c75508bbe0497719a0

SHA1
cf1113f3415b43dc0f28cc2d8e24a4d231bd094b

SHA256
c05810490197b27f3c99a34c41cd1bc5dc195c7d1c29eef1212fa2fa96ec9482

SHA512
65075640fad199984554bcca2bf3cf97c723e924e5fca7dcf889adf884004251962da05941f7a7517d4c79e056fde033077f932c613bad398c9887d76909aad7

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

Filesize
5B

MD5
2099bb64fd1770d321df364f99b658d1

SHA1
3124edeaa14c060becfa8b980ed77db15d56a9e3

SHA256
d53ce6bdbd0c3cb4596ac3103f15824570a9858da95f63cedf64cec11dc44e2d

SHA512
3481f2a02f7b1255ad0f3cd8a716de9c7414753b6f8657f0bf99738ff6623f8717469bc10e737d6c0d1d13846e726d50baeb5e8ef73efcfce7be5c63327c4895

Download Submit
memory/2792-14-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download
memory/2792-15-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download
memory/2792-16-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download
memory/2792-30-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download
memory/3048-0-0x0000000074F32000-0x0000000074F33000-memory.dmp

Filesize
4KB

Download
memory/3048-1-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download
memory/3048-2-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download
memory/3048-13-0x0000000074F30000-0x00000000754E1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads