73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f

General

Target

73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exe
Size

318KB
MD5

eb857079d4826086bf6e51fb7c68b944
SHA1

fa985c6622e1cf26c447baed47e8e7874bbc7d09
SHA256

73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f
SHA512

d5c78f95ec3b9863337774ec2fd2bce2514c6236c659be9b585b1be01e453fa95ed26bcf58b1189ec4b307efcd57e6479f350e06c21b91077c7a058e582457f7
SSDEEP

6144:5P4qlaf2uyL8O8Kva7i0ZQ8rO9N6bairFSMku2:Vqf2uWK2a20ZQslSU2

Score

9^/10

persistence

Malware Config

Signatures

ACProtect 1.3x - 1.4x DLL software 4 IoCs

Detects file using ACProtect software.

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\ctiC614.tmp	acprotect
C:\Users\Admin\AppData\Local\Temp\ctiC614.tmp	acprotect
C:\Users\Admin\AppData\Local\Temp\ruiC9AE.tmp	acprotect
C:\Users\Admin\AppData\Local\Temp\ruiC9AE.tmp	acprotect

Executes dropped EXE 1 IoCs

Processes:

server.exe

pid process

3192 server.exe

pid	process
3192	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:

73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exe

Loads dropped DLL 4 IoCs

Processes:

73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exeserver.exe

pid	process
904	73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exe
904	73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exe
3192	server.exe
3192	server.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

server.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\MICROSOFT\WINDOWS\CURRENTVERSION\RUN	server.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\server = "C:\\windows\\system32\\server.exe"	server.exe

Drops file in System32 directory 3 IoCs

Processes:

73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exeserver.exe

description	ioc	process
File created	C:\windows\SysWOW64\server.exe	73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exe
File opened for modification	C:\windows\SysWOW64\server.exe	73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exe
File created	C:\windows\SysWOW64\server.exe	server.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

server.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	server.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	server.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exeserver.exe

pid	process
904	73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exe
904	73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exe
3192	server.exe
3192	server.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exeserver.exe

pid process

904 73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exe
3192 server.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exe

description	pid	process	target process
PID 904 wrote to memory of 3192	904	73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exe	server.exe
PID 904 wrote to memory of 3192	904	73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exe	server.exe
PID 904 wrote to memory of 3192	904	73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exe	server.exe

C:\Users\Admin\AppData\Local\Temp\73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exe
"C:\Users\Admin\AppData\Local\Temp\73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exe"
1⤵
- Checks computer location settings
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:904

C:\windows\SysWOW64\server.exe
"C:\windows\system32\server.exe" C:\Users\Admin\AppData\Local\Temp\73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f.exe
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:3192

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\ctiC614.tmp
Filesize
172KB

MD5
685f1cbd4af30a1d0c25f252d399a666

SHA1
6a1b978f5e6150b88c8634146f1406ed97d2f134

SHA256
0e478c95a7a07570a69e6061e7c1da9001bccad9cc454f2ed4da58824a13e0f4

SHA512
6555ad6b4f4f26105ca8aad64501d74519a3e091f559b4b563d6ffb20a2ddfcde65e4fe94971a9bc65e86db577f2548ca00f9920d341c8ea808b04c0947d61d9

Download Submit
C:\Users\Admin\AppData\Local\Temp\ctiC614.tmp
Filesize
172KB

MD5
685f1cbd4af30a1d0c25f252d399a666

SHA1
6a1b978f5e6150b88c8634146f1406ed97d2f134

SHA256
0e478c95a7a07570a69e6061e7c1da9001bccad9cc454f2ed4da58824a13e0f4

SHA512
6555ad6b4f4f26105ca8aad64501d74519a3e091f559b4b563d6ffb20a2ddfcde65e4fe94971a9bc65e86db577f2548ca00f9920d341c8ea808b04c0947d61d9

Download Submit
C:\Users\Admin\AppData\Local\Temp\ruiC9AE.tmp
Filesize
172KB

MD5
685f1cbd4af30a1d0c25f252d399a666

SHA1
6a1b978f5e6150b88c8634146f1406ed97d2f134

SHA256
0e478c95a7a07570a69e6061e7c1da9001bccad9cc454f2ed4da58824a13e0f4

SHA512
6555ad6b4f4f26105ca8aad64501d74519a3e091f559b4b563d6ffb20a2ddfcde65e4fe94971a9bc65e86db577f2548ca00f9920d341c8ea808b04c0947d61d9

Download Submit
C:\Users\Admin\AppData\Local\Temp\ruiC9AE.tmp
Filesize
172KB

MD5
685f1cbd4af30a1d0c25f252d399a666

SHA1
6a1b978f5e6150b88c8634146f1406ed97d2f134

SHA256
0e478c95a7a07570a69e6061e7c1da9001bccad9cc454f2ed4da58824a13e0f4

SHA512
6555ad6b4f4f26105ca8aad64501d74519a3e091f559b4b563d6ffb20a2ddfcde65e4fe94971a9bc65e86db577f2548ca00f9920d341c8ea808b04c0947d61d9

Download Submit
C:\Windows\SysWOW64\server.exe
Filesize
318KB

MD5
eb857079d4826086bf6e51fb7c68b944

SHA1
fa985c6622e1cf26c447baed47e8e7874bbc7d09

SHA256
73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f

SHA512
d5c78f95ec3b9863337774ec2fd2bce2514c6236c659be9b585b1be01e453fa95ed26bcf58b1189ec4b307efcd57e6479f350e06c21b91077c7a058e582457f7

Download Submit
C:\windows\SysWOW64\server.exe
Filesize
318KB

MD5
eb857079d4826086bf6e51fb7c68b944

SHA1
fa985c6622e1cf26c447baed47e8e7874bbc7d09

SHA256
73103511fafe32f93762681a103f0f0415c1d133263b5df3ed60be5b5916bc7f

SHA512
d5c78f95ec3b9863337774ec2fd2bce2514c6236c659be9b585b1be01e453fa95ed26bcf58b1189ec4b307efcd57e6479f350e06c21b91077c7a058e582457f7

Download Submit
memory/904-139-0x00000000021A0000-0x0000000002213000-memory.dmp

Filesize
460KB

Download
memory/904-132-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/904-138-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/3192-135-0x0000000000000000-mapping.dmp

Download
memory/3192-142-0x0000000000590000-0x0000000000603000-memory.dmp

Filesize
460KB

Download
memory/3192-143-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/3192-144-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/3192-145-0x0000000000590000-0x0000000000603000-memory.dmp

Filesize
460KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads