38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c

General

Target

38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c.exe
Size

37KB
MD5

56eaff4406bc90d0671285a7ecb67cb2
SHA1

c0cdd9a413157fad109391cc045428cef70ed197
SHA256

38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c
SHA512

d1fa94d54b150a9c93528049fec70c7bb59e1a87a8e46dba5f04bb3febad06deefb6c5cc09d24a9e69f0b3b317590747341feab84883379c36f239e1868629f9
SSDEEP

384:+iaCiMmB63fbw6ZfrZUy8fCiHVugmB+xRrAF+rMRTyN/0L+EcoinblneHQM3epz9:X60DwODZX8fCiEd+/rM+rMRa8NuJhVt

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
2016	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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\61e53fca4b50eaee89f696351aed3589.exe	chroom.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\61e53fca4b50eaee89f696351aed3589.exe	chroom.exe

Executes dropped EXE 1 IoCs

pid	Process
1972	chroom.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	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	chroom.exe

Suspicious use of AdjustPrivilegeToken 35 IoCs

description	pid	Process
Token: SeDebugPrivilege	1972	chroom.exe
Token: 33	1972	chroom.exe
Token: SeIncBasePriorityPrivilege	1972	chroom.exe
Token: 33	1972	chroom.exe
Token: SeIncBasePriorityPrivilege	1972	chroom.exe
Token: 33	1972	chroom.exe
Token: SeIncBasePriorityPrivilege	1972	chroom.exe
Token: 33	1972	chroom.exe
Token: SeIncBasePriorityPrivilege	1972	chroom.exe
Token: 33	1972	chroom.exe
Token: SeIncBasePriorityPrivilege	1972	chroom.exe
Token: 33	1972	chroom.exe
Token: SeIncBasePriorityPrivilege	1972	chroom.exe
Token: 33	1972	chroom.exe
Token: SeIncBasePriorityPrivilege	1972	chroom.exe
Token: 33	1972	chroom.exe
Token: SeIncBasePriorityPrivilege	1972	chroom.exe
Token: 33	1972	chroom.exe
Token: SeIncBasePriorityPrivilege	1972	chroom.exe
Token: 33	1972	chroom.exe
Token: SeIncBasePriorityPrivilege	1972	chroom.exe
Token: 33	1972	chroom.exe
Token: SeIncBasePriorityPrivilege	1972	chroom.exe
Token: 33	1972	chroom.exe
Token: SeIncBasePriorityPrivilege	1972	chroom.exe
Token: 33	1972	chroom.exe
Token: SeIncBasePriorityPrivilege	1972	chroom.exe
Token: 33	1972	chroom.exe
Token: SeIncBasePriorityPrivilege	1972	chroom.exe
Token: 33	1972	chroom.exe
Token: SeIncBasePriorityPrivilege	1972	chroom.exe
Token: 33	1972	chroom.exe
Token: SeIncBasePriorityPrivilege	1972	chroom.exe
Token: 33	1972	chroom.exe
Token: SeIncBasePriorityPrivilege	1972	chroom.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3572 wrote to memory of 1972	3572	38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c.exe	85
PID 3572 wrote to memory of 1972	3572	38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c.exe	85
PID 3572 wrote to memory of 1972	3572	38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c.exe	85
PID 1972 wrote to memory of 2016	1972	chroom.exe	88
PID 1972 wrote to memory of 2016	1972	chroom.exe	88
PID 1972 wrote to memory of 2016	1972	chroom.exe	88

C:\Users\Admin\AppData\Local\Temp\38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c.exe
"C:\Users\Admin\AppData\Local\Temp\38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3572
- C:\Users\Admin\AppData\Local\Temp\chroom.exe
  "C:\Users\Admin\AppData\Local\Temp\chroom.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1972
- - C:\Windows\SysWOW64\netsh.exe
    netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\chroom.exe" "chroom.exe" ENABLE
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    - System Location Discovery: System Language Discovery
    PID:2016

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\chroom.exe

Filesize
37KB

MD5
56eaff4406bc90d0671285a7ecb67cb2

SHA1
c0cdd9a413157fad109391cc045428cef70ed197

SHA256
38451f9cee47daf6fa98fee356ebf5a18194c5c5fa4d2ffc69af515a60de5e8c

SHA512
d1fa94d54b150a9c93528049fec70c7bb59e1a87a8e46dba5f04bb3febad06deefb6c5cc09d24a9e69f0b3b317590747341feab84883379c36f239e1868629f9

Download Submit
memory/1972-13-0x0000000074AC0000-0x0000000075071000-memory.dmp

Filesize
5.7MB

Download
memory/1972-14-0x0000000074AC0000-0x0000000075071000-memory.dmp

Filesize
5.7MB

Download
memory/1972-16-0x0000000074AC0000-0x0000000075071000-memory.dmp

Filesize
5.7MB

Download
memory/3572-0-0x0000000074AC2000-0x0000000074AC3000-memory.dmp

Filesize
4KB

Download
memory/3572-1-0x0000000074AC0000-0x0000000075071000-memory.dmp

Filesize
5.7MB

Download
memory/3572-2-0x0000000074AC0000-0x0000000075071000-memory.dmp

Filesize
5.7MB

Download
memory/3572-12-0x0000000074AC0000-0x0000000075071000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads