ae1d5fd5d55bedc76554a13d0eee68ae8bb3e9af0cbf4fd3d1ae25e21bc1c1d3

General

Target

66df4d837d9b6b60b845ef343b763bfb.exe
Size

25KB
MD5

66df4d837d9b6b60b845ef343b763bfb
SHA1

f27a811445b649ff9a91da52152caf847ad38470
SHA256

ae1d5fd5d55bedc76554a13d0eee68ae8bb3e9af0cbf4fd3d1ae25e21bc1c1d3
SHA512

1f3258e69151f5fb0680ee02cc554d179092f00278dd54ab0dd75a987494ba75652d3c7f95925e5b25b95f0b4392663046d203b7fc58a2e54871a56899f2ff84
SSDEEP

768:svpUfE0bKP7eYkkrbiPs9Mvnv474hIScRj19dU2QW:QG9GP7eA2P5h0F19dU2QW

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 3 IoCs

Processes:

Dllhost.exeServer.exeServer.exe

pid process

1684 Dllhost.exe
3432 Server.exe
3100 Server.exe

pid	process
1684	Dllhost.exe
3432	Server.exe
3100	Server.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

Processes:

66df4d837d9b6b60b845ef343b763bfb.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\Control Panel\International\Geo\Nation	66df4d837d9b6b60b845ef343b763bfb.exe

Drops startup file 2 IoCs

Processes:

Dllhost.exe

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Dllhost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1502147629-2175634256-330282290-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "\"C:\\Users\\Admin\\AppData\\Roaming\\Dllhost.exe\" .."	Dllhost.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\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). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1936 schtasks.exe
Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

66df4d837d9b6b60b845ef343b763bfb.exeDllhost.exe

pid process

1560 66df4d837d9b6b60b845ef343b763bfb.exe
1684 Dllhost.exe

pid	process
1936	schtasks.exe

pid	process
1560	66df4d837d9b6b60b845ef343b763bfb.exe
1684	Dllhost.exe

Suspicious use of AdjustPrivilegeToken 31 IoCs

Processes:

Dllhost.exe

description	pid	process
Token: SeDebugPrivilege	1684	Dllhost.exe
Token: 33	1684	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1684	Dllhost.exe
Token: 33	1684	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1684	Dllhost.exe
Token: 33	1684	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1684	Dllhost.exe
Token: 33	1684	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1684	Dllhost.exe
Token: 33	1684	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1684	Dllhost.exe
Token: 33	1684	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1684	Dllhost.exe
Token: 33	1684	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1684	Dllhost.exe
Token: 33	1684	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1684	Dllhost.exe
Token: 33	1684	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1684	Dllhost.exe
Token: 33	1684	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1684	Dllhost.exe
Token: 33	1684	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1684	Dllhost.exe
Token: 33	1684	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1684	Dllhost.exe
Token: 33	1684	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1684	Dllhost.exe
Token: 33	1684	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1684	Dllhost.exe
Token: 33	1684	Dllhost.exe
Token: SeIncBasePriorityPrivilege	1684	Dllhost.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

66df4d837d9b6b60b845ef343b763bfb.exeDllhost.exe

description	pid	process	target process
PID 1560 wrote to memory of 1684	1560	66df4d837d9b6b60b845ef343b763bfb.exe	Dllhost.exe
PID 1560 wrote to memory of 1684	1560	66df4d837d9b6b60b845ef343b763bfb.exe	Dllhost.exe
PID 1684 wrote to memory of 1936	1684	Dllhost.exe	schtasks.exe
PID 1684 wrote to memory of 1936	1684	Dllhost.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\66df4d837d9b6b60b845ef343b763bfb.exe
"C:\Users\Admin\AppData\Local\Temp\66df4d837d9b6b60b845ef343b763bfb.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1560

C:\Users\Admin\AppData\Roaming\Dllhost.exe
"C:\Users\Admin\AppData\Roaming\Dllhost.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1684

C:\Windows\SYSTEM32\schtasks.exe
schtasks /create /sc minute /mo 1 /tn Server /tr C:\Users\Admin\AppData\Local\Temp/Server.exe
3⤵
- Creates scheduled task(s)
PID:1936

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
PID:3432

C:\Users\Admin\AppData\Local\Temp\Server.exe
C:\Users\Admin\AppData\Local\Temp/Server.exe
1⤵
- Executes dropped EXE
PID:3100

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Server.exe.log
Filesize
1KB

MD5
a8a147915e3a996fdbe10b3a3f1e1bb2

SHA1
abc564c1be468d57e700913e7b6cf8f62d421263

SHA256
8b96a8557deea66696837af011843d6a82451ba57c8f9b5a2726a70818d6fc7e

SHA512
17b42f17ef60a9f625703172763f692e5ed2ca93564a97853dfa72bb0ac6305ef3267aea0b205938e3aa8eac10156d9d4f322b30d0329d92d647bcec6372731c

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe
Filesize
25KB

MD5
66df4d837d9b6b60b845ef343b763bfb

SHA1
f27a811445b649ff9a91da52152caf847ad38470

SHA256
ae1d5fd5d55bedc76554a13d0eee68ae8bb3e9af0cbf4fd3d1ae25e21bc1c1d3

SHA512
1f3258e69151f5fb0680ee02cc554d179092f00278dd54ab0dd75a987494ba75652d3c7f95925e5b25b95f0b4392663046d203b7fc58a2e54871a56899f2ff84

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe
Filesize
25KB

MD5
66df4d837d9b6b60b845ef343b763bfb

SHA1
f27a811445b649ff9a91da52152caf847ad38470

SHA256
ae1d5fd5d55bedc76554a13d0eee68ae8bb3e9af0cbf4fd3d1ae25e21bc1c1d3

SHA512
1f3258e69151f5fb0680ee02cc554d179092f00278dd54ab0dd75a987494ba75652d3c7f95925e5b25b95f0b4392663046d203b7fc58a2e54871a56899f2ff84

Download Submit
C:\Users\Admin\AppData\Local\Temp\Server.exe
Filesize
25KB

MD5
66df4d837d9b6b60b845ef343b763bfb

SHA1
f27a811445b649ff9a91da52152caf847ad38470

SHA256
ae1d5fd5d55bedc76554a13d0eee68ae8bb3e9af0cbf4fd3d1ae25e21bc1c1d3

SHA512
1f3258e69151f5fb0680ee02cc554d179092f00278dd54ab0dd75a987494ba75652d3c7f95925e5b25b95f0b4392663046d203b7fc58a2e54871a56899f2ff84

Download Submit
C:\Users\Admin\AppData\Roaming\Dllhost.exe
Filesize
25KB

MD5
66df4d837d9b6b60b845ef343b763bfb

SHA1
f27a811445b649ff9a91da52152caf847ad38470

SHA256
ae1d5fd5d55bedc76554a13d0eee68ae8bb3e9af0cbf4fd3d1ae25e21bc1c1d3

SHA512
1f3258e69151f5fb0680ee02cc554d179092f00278dd54ab0dd75a987494ba75652d3c7f95925e5b25b95f0b4392663046d203b7fc58a2e54871a56899f2ff84

Download Submit
C:\Users\Admin\AppData\Roaming\Dllhost.exe
Filesize
25KB

MD5
66df4d837d9b6b60b845ef343b763bfb

SHA1
f27a811445b649ff9a91da52152caf847ad38470

SHA256
ae1d5fd5d55bedc76554a13d0eee68ae8bb3e9af0cbf4fd3d1ae25e21bc1c1d3

SHA512
1f3258e69151f5fb0680ee02cc554d179092f00278dd54ab0dd75a987494ba75652d3c7f95925e5b25b95f0b4392663046d203b7fc58a2e54871a56899f2ff84

Download Submit
memory/1560-133-0x00007FF83BB10000-0x00007FF83C5D1000-memory.dmp

Filesize
10.8MB

Download
memory/1560-137-0x00007FF83BB10000-0x00007FF83C5D1000-memory.dmp

Filesize
10.8MB

Download
memory/1560-132-0x00000000001F0000-0x00000000001F8000-memory.dmp

Filesize
32KB

Download
memory/1684-140-0x00007FF83BB10000-0x00007FF83C5D1000-memory.dmp

Filesize
10.8MB

Download
memory/1684-138-0x00007FF83BB10000-0x00007FF83C5D1000-memory.dmp

Filesize
10.8MB

Download
memory/1684-134-0x0000000000000000-mapping.dmp

Download
memory/1936-139-0x0000000000000000-mapping.dmp

Download
memory/3100-147-0x00007FF83BB10000-0x00007FF83C5D1000-memory.dmp

Filesize
10.8MB

Download
memory/3100-148-0x00007FF83BB10000-0x00007FF83C5D1000-memory.dmp

Filesize
10.8MB

Download
memory/3432-143-0x00007FF83BB10000-0x00007FF83C5D1000-memory.dmp

Filesize
10.8MB

Download
memory/3432-144-0x00007FF83BB10000-0x00007FF83C5D1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads