708ca37f627961e44b9e64515ac0d162c54d6b87a627ade0ef05ba419cc2d509

Analysis

max time kernel
138s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
05-07-2022 07:00

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General

Target

vnshell.app_-_BOOTICEx64.exe___c8dd28f1135c11861eb7d93b7a931433.exe
Size

450KB
MD5

c8dd28f1135c11861eb7d93b7a931433
SHA1

a59038260c47467a8ba32fe1053ea64193c0fc20
SHA256

708ca37f627961e44b9e64515ac0d162c54d6b87a627ade0ef05ba419cc2d509
SHA512

c23e5dd48874878ae23fc7506b895dcad5947e2af6997a0eae4f283185fe7b2dd58ab7bb5defd556044365aac44772cd290c1a0b04574915ffc36eb5563a8d11

Score

8^/10

upx

Malware Config

Signatures

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/2328-131-0x00007FF66C420000-0x00007FF66C572000-memory.dmp	upx

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:

vnshell.app_-_BOOTICEx64.exe___c8dd28f1135c11861eb7d93b7a931433.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	vnshell.app_-_BOOTICEx64.exe___c8dd28f1135c11861eb7d93b7a931433.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 9 IoCs

Processes:

vnshell.app_-_BOOTICEx64.exe___c8dd28f1135c11861eb7d93b7a931433.exe

description	pid	process
Token: SeDebugPrivilege	2328	vnshell.app_-_BOOTICEx64.exe___c8dd28f1135c11861eb7d93b7a931433.exe
Token: SeAuditPrivilege	2328	vnshell.app_-_BOOTICEx64.exe___c8dd28f1135c11861eb7d93b7a931433.exe
Token: SeSecurityPrivilege	2328	vnshell.app_-_BOOTICEx64.exe___c8dd28f1135c11861eb7d93b7a931433.exe
Token: SeBackupPrivilege	2328	vnshell.app_-_BOOTICEx64.exe___c8dd28f1135c11861eb7d93b7a931433.exe
Token: SeRestorePrivilege	2328	vnshell.app_-_BOOTICEx64.exe___c8dd28f1135c11861eb7d93b7a931433.exe
Token: SeTakeOwnershipPrivilege	2328	vnshell.app_-_BOOTICEx64.exe___c8dd28f1135c11861eb7d93b7a931433.exe
Token: SeManageVolumePrivilege	2328	vnshell.app_-_BOOTICEx64.exe___c8dd28f1135c11861eb7d93b7a931433.exe
Token: SeSystemEnvironmentPrivilege	2328	vnshell.app_-_BOOTICEx64.exe___c8dd28f1135c11861eb7d93b7a931433.exe
Token: SeShutdownPrivilege	2328	vnshell.app_-_BOOTICEx64.exe___c8dd28f1135c11861eb7d93b7a931433.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

vnshell.app_-_BOOTICEx64.exe___c8dd28f1135c11861eb7d93b7a931433.exe

description	pid	process	target process
PID 2328 wrote to memory of 4160	2328	vnshell.app_-_BOOTICEx64.exe___c8dd28f1135c11861eb7d93b7a931433.exe	bcdedit.exe
PID 2328 wrote to memory of 4160	2328	vnshell.app_-_BOOTICEx64.exe___c8dd28f1135c11861eb7d93b7a931433.exe	bcdedit.exe

C:\Users\Admin\AppData\Local\Temp\vnshell.app_-_BOOTICEx64.exe___c8dd28f1135c11861eb7d93b7a931433.exe
"C:\Users\Admin\AppData\Local\Temp\vnshell.app_-_BOOTICEx64.exe___c8dd28f1135c11861eb7d93b7a931433.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2328

C:\Windows\system32\bcdedit.exe
"C:\Windows\system32\bcdedit.exe"
2⤵
PID:4160

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/2328-131-0x00007FF66C420000-0x00007FF66C572000-memory.dmp

Filesize
1.3MB

Download
memory/4160-130-0x0000000000000000-mapping.dmp

Download