b08aa1d63497dc690d0cd2baab0770457f6e28267a454a4fb860540979d6158a

General

Target

b08aa1d63497dc690d0cd2baab0770457f6e28267a454a4fb860540979d6158a.exe
Size

43KB
MD5

75afc3968269546056e089311e6a6e25
SHA1

17df0b061d5c744de710300ae8c2e7fbbca89d7e
SHA256

b08aa1d63497dc690d0cd2baab0770457f6e28267a454a4fb860540979d6158a
SHA512

2907f103fd0cfc0ef0d1476ea636dc0056ebe02f1af38e1ebd23cadab1d7776e438281ab1da23a4bfc869ca3c743c01833b50c9b2aca16b27086503c903e5133
SSDEEP

768:5S3DZ8y9MHnS6SgfSre9WTZ2S15M1N6HUjHPSqvtK1YrMr1PTENpaXsHCCjPkaE6:m6WEpo81W1bEjHCCrk

Score

8^/10

evasion persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

thebest.exe

pid process

4476 thebest.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

1700 netsh.exe

pid	process
1700	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

Processes:

b08aa1d63497dc690d0cd2baab0770457f6e28267a454a4fb860540979d6158a.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	b08aa1d63497dc690d0cd2baab0770457f6e28267a454a4fb860540979d6158a.exe

Drops startup file 2 IoCs

Processes:

thebest.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\24894a08d6e12e0cd8ac5badace326b3.exe	thebest.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\24894a08d6e12e0cd8ac5badace326b3.exe	thebest.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

thebest.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\24894a08d6e12e0cd8ac5badace326b3 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\thebest.exe\" .."	thebest.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\24894a08d6e12e0cd8ac5badace326b3 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\thebest.exe\" .."	thebest.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

thebest.exe

pid	process
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe
4476	thebest.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

thebest.exe

description pid process

Token: SeDebugPrivilege 4476 thebest.exe

description	pid	process
Token: SeDebugPrivilege	4476	thebest.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

b08aa1d63497dc690d0cd2baab0770457f6e28267a454a4fb860540979d6158a.exethebest.exe

description	pid	process	target process
PID 4624 wrote to memory of 4476	4624	b08aa1d63497dc690d0cd2baab0770457f6e28267a454a4fb860540979d6158a.exe	thebest.exe
PID 4624 wrote to memory of 4476	4624	b08aa1d63497dc690d0cd2baab0770457f6e28267a454a4fb860540979d6158a.exe	thebest.exe
PID 4624 wrote to memory of 4476	4624	b08aa1d63497dc690d0cd2baab0770457f6e28267a454a4fb860540979d6158a.exe	thebest.exe
PID 4476 wrote to memory of 1700	4476	thebest.exe	netsh.exe
PID 4476 wrote to memory of 1700	4476	thebest.exe	netsh.exe
PID 4476 wrote to memory of 1700	4476	thebest.exe	netsh.exe

C:\Users\Admin\AppData\Local\Temp\b08aa1d63497dc690d0cd2baab0770457f6e28267a454a4fb860540979d6158a.exe
"C:\Users\Admin\AppData\Local\Temp\b08aa1d63497dc690d0cd2baab0770457f6e28267a454a4fb860540979d6158a.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4624

C:\Users\Admin\AppData\Local\Temp\thebest.exe
"C:\Users\Admin\AppData\Local\Temp\thebest.exe"
2⤵
- Executes dropped EXE
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4476

C:\Windows\SysWOW64\netsh.exe
netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\thebest.exe" "thebest.exe" ENABLE
3⤵
- Modifies Windows Firewall
PID:1700

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
43KB

MD5
75afc3968269546056e089311e6a6e25

SHA1
17df0b061d5c744de710300ae8c2e7fbbca89d7e

SHA256
b08aa1d63497dc690d0cd2baab0770457f6e28267a454a4fb860540979d6158a

SHA512
2907f103fd0cfc0ef0d1476ea636dc0056ebe02f1af38e1ebd23cadab1d7776e438281ab1da23a4bfc869ca3c743c01833b50c9b2aca16b27086503c903e5133

Download Submit
C:\Users\Admin\AppData\Local\Temp\thebest.exe

Filesize
43KB

MD5
75afc3968269546056e089311e6a6e25

SHA1
17df0b061d5c744de710300ae8c2e7fbbca89d7e

SHA256
b08aa1d63497dc690d0cd2baab0770457f6e28267a454a4fb860540979d6158a

SHA512
2907f103fd0cfc0ef0d1476ea636dc0056ebe02f1af38e1ebd23cadab1d7776e438281ab1da23a4bfc869ca3c743c01833b50c9b2aca16b27086503c903e5133

Download Submit
memory/1700-138-0x0000000000000000-mapping.dmp

Download
memory/4476-134-0x0000000000000000-mapping.dmp

Download
memory/4476-137-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/4476-140-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/4624-133-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/4624-139-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads