90a3ee4bb184d38630de9018450ed6be6fdeb2e6b562ccd04fc88f0ad0c865f4

General

Target

90a3ee4bb184d38630de9018450ed6be6fdeb2e6b562ccd04fc88f0ad0c865f4.exe
Size

43KB
MD5

82a9a2a48d290eea02ea5f46a8f31dfb
SHA1

dc20b8cd4f74b9a63cf2d90c5cbbd21839945c89
SHA256

90a3ee4bb184d38630de9018450ed6be6fdeb2e6b562ccd04fc88f0ad0c865f4
SHA512

e3988c2ee085cf228603f70b54eaadca3a9ba5caa72661eaed7eb20217042b52c2539bf77bd4c40e7165d02bcdb605379c94f279fa671beaaaed49b59d5cc833
SSDEEP

384:/ZyvvGyCEFmVoybL/ldP8tm8wMxEDMghm19D9O5UE5QzwBlpJNakkjh/TzF7pWng:BOvGyVAVlbL/l5knuggrvQO+Dl+L

Score

7^/10

discovery persistence

Malware Config

Signatures

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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	90a3ee4bb184d38630de9018450ed6be6fdeb2e6b562ccd04fc88f0ad0c865f4.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe	Dllhost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Java update.exe	Dllhost.exe

Executes dropped EXE 4 IoCs

pid	Process
4156	Dllhost.exe
3296	Server.exe
5096	Server.exe
844	Server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\Dllhost.exe\" .."	Dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\Dllhost.exe\" .."	Dllhost.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 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	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	90a3ee4bb184d38630de9018450ed6be6fdeb2e6b562ccd04fc88f0ad0c865f4.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dllhost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2256	schtasks.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

pid	Process
4840	90a3ee4bb184d38630de9018450ed6be6fdeb2e6b562ccd04fc88f0ad0c865f4.exe
4156	Dllhost.exe

Suspicious use of AdjustPrivilegeToken 33 IoCs

description	pid	Process
Token: SeDebugPrivilege	4156	Dllhost.exe
Token: 33	4156	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4156	Dllhost.exe
Token: 33	4156	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4156	Dllhost.exe
Token: 33	4156	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4156	Dllhost.exe
Token: 33	4156	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4156	Dllhost.exe
Token: 33	4156	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4156	Dllhost.exe
Token: 33	4156	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4156	Dllhost.exe
Token: 33	4156	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4156	Dllhost.exe
Token: 33	4156	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4156	Dllhost.exe
Token: 33	4156	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4156	Dllhost.exe
Token: 33	4156	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4156	Dllhost.exe
Token: 33	4156	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4156	Dllhost.exe
Token: 33	4156	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4156	Dllhost.exe
Token: 33	4156	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4156	Dllhost.exe
Token: 33	4156	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4156	Dllhost.exe
Token: 33	4156	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4156	Dllhost.exe
Token: 33	4156	Dllhost.exe
Token: SeIncBasePriorityPrivilege	4156	Dllhost.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4840 wrote to memory of 4156	4840	90a3ee4bb184d38630de9018450ed6be6fdeb2e6b562ccd04fc88f0ad0c865f4.exe	82
PID 4840 wrote to memory of 4156	4840	90a3ee4bb184d38630de9018450ed6be6fdeb2e6b562ccd04fc88f0ad0c865f4.exe	82
PID 4840 wrote to memory of 4156	4840	90a3ee4bb184d38630de9018450ed6be6fdeb2e6b562ccd04fc88f0ad0c865f4.exe	82
PID 4156 wrote to memory of 2256	4156	Dllhost.exe	88
PID 4156 wrote to memory of 2256	4156	Dllhost.exe	88
PID 4156 wrote to memory of 2256	4156	Dllhost.exe	88

C:\Users\Admin\AppData\Local\Temp\90a3ee4bb184d38630de9018450ed6be6fdeb2e6b562ccd04fc88f0ad0c865f4.exe
"C:\Users\Admin\AppData\Local\Temp\90a3ee4bb184d38630de9018450ed6be6fdeb2e6b562ccd04fc88f0ad0c865f4.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:4840
- C:\Users\Admin\AppData\Roaming\Dllhost.exe
  "C:\Users\Admin\AppData\Roaming\Dllhost.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4156
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2256

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3296

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:5096

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:844

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

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\Microsoft\CLR_v2.0_32\UsageLogs\Server.exe.log

Filesize
408B

MD5
42157868488d3ef98c00e3fa12f064be

SHA1
aad391be9ac3f6ce1ced49583690486a5f4186fb

SHA256
b9520170e84597186ba5cc223b9c2773f70d0cda088950bae2182e3b2237995c

SHA512
8f4a4bd63ceefc34158ea23f3a73dcc2848eeacdba8355d1251a96b4e0c18e2f3b0c4939be359f874f81fe4ee63283b8be43a70fe2dbaa2e64784333d10a2471

Download Submit
C:\Users\Admin\AppData\Roaming\Dllhost.exe

Filesize
43KB

MD5
82a9a2a48d290eea02ea5f46a8f31dfb

SHA1
dc20b8cd4f74b9a63cf2d90c5cbbd21839945c89

SHA256
90a3ee4bb184d38630de9018450ed6be6fdeb2e6b562ccd04fc88f0ad0c865f4

SHA512
e3988c2ee085cf228603f70b54eaadca3a9ba5caa72661eaed7eb20217042b52c2539bf77bd4c40e7165d02bcdb605379c94f279fa671beaaaed49b59d5cc833

Download Submit
memory/3296-21-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/3296-20-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/3296-22-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/3296-24-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/4156-12-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/4156-14-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/4156-17-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/4840-2-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/4840-13-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download
memory/4840-0-0x0000000074EF2000-0x0000000074EF3000-memory.dmp

Filesize
4KB

Download
memory/4840-1-0x0000000074EF0000-0x00000000754A1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads