b7c78dbaaf0a4791d6d496dae02bb5a95658259331d0a35413b14a7843a34769

Analysis

max time kernel
91s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
06/11/2022, 21:48

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General

Target

Trojan-Ransom.Win32.Blocker.exe
Size

228KB
MD5

a294d7c1def35922c92fff44d9cb9311
SHA1

79a147bf4e675e2e736a236e1bc9f3ff16d582ad
SHA256

b7c78dbaaf0a4791d6d496dae02bb5a95658259331d0a35413b14a7843a34769
SHA512

88d775410177d19c5163a9380e1f109e47af004f7d164a084336baebf32912b448d40659946512491085bf1215bfbe14b158e884f19366380c904bdaee3de9a0
SSDEEP

6144:W2NdNSDMMHuEAytO77UstnXW0jzvN5PUKopNM3y:WMdNVMOEtO7xnG0jzN5PUVpNoy

Score

8^/10

persistence

Malware Config

Signatures

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Q70IW-07UE6-CIX9M-QV7UL-3E5AU}	Trojan-Ransom.Win32.Blocker.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{Q70IW-07UE6-CIX9M-QV7UL-3E5AU}\StubPath = "C:\\Windows\\system32\\ccleaner.exe"	Trojan-Ransom.Win32.Blocker.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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	Trojan-Ransom.Win32.Blocker.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	Trojan-Ransom.Win32.Blocker.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ccleaner = "C:\\Windows\\system32\\ccleaner.exe"	Trojan-Ransom.Win32.Blocker.exe
Key created	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	Trojan-Ransom.Win32.Blocker.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ccleaner = "C:\\Windows\\system32\\ccleaner.exe"	Trojan-Ransom.Win32.Blocker.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\ccleaner.exe	Trojan-Ransom.Win32.Blocker.exe
File opened for modification	C:\Windows\SysWOW64\ccleaner.exe	Trojan-Ransom.Win32.Blocker.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 4 IoCs

pid	Process
4084	Trojan-Ransom.Win32.Blocker.exe
4084	Trojan-Ransom.Win32.Blocker.exe
4620	Trojan-Ransom.Win32.Blocker.exe
4620	Trojan-Ransom.Win32.Blocker.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4084	Trojan-Ransom.Win32.Blocker.exe
Token: SeDebugPrivilege	4084	Trojan-Ransom.Win32.Blocker.exe
Token: SeDebugPrivilege	4620	Trojan-Ransom.Win32.Blocker.exe
Token: SeDebugPrivilege	4620	Trojan-Ransom.Win32.Blocker.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4084 wrote to memory of 4620	4084	Trojan-Ransom.Win32.Blocker.exe	80
PID 4084 wrote to memory of 4620	4084	Trojan-Ransom.Win32.Blocker.exe	80
PID 4084 wrote to memory of 4620	4084	Trojan-Ransom.Win32.Blocker.exe	80

C:\Users\Admin\AppData\Local\Temp\Trojan-Ransom.Win32.Blocker.exe
"C:\Users\Admin\AppData\Local\Temp\Trojan-Ransom.Win32.Blocker.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4084
- C:\Users\Admin\AppData\Local\Temp\Trojan-Ransom.Win32.Blocker.exe
  "C:\Users\Admin\AppData\Local\Temp\Trojan-Ransom.Win32.Blocker.exe" /r
  2⤵
  - Modifies Installed Components in the registry
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4620

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/4084-132-0x0000000002150000-0x0000000002154000-memory.dmp

Filesize
16KB

Download
memory/4084-133-0x00000000021B0000-0x00000000021E9000-memory.dmp

Filesize
228KB

Download
memory/4084-135-0x00000000021B0000-0x00000000021E9000-memory.dmp

Filesize
228KB

Download
memory/4620-136-0x0000000002070000-0x00000000020A9000-memory.dmp

Filesize
228KB

Download