2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a

General

Target

2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe
Size

628KB
MD5

aa325b98e7e74bd29564c815adf449a8
SHA1

665f7e46049987a8eb666d66d8055ef6721d630e
SHA256

2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a
SHA512

832cceaab68c7d070eb7ad4e676164dcb283b71e80633621e92e60279cd94f35201dafc62ec8ecce1c2ad8dfa93b68e90b48d46f22c87d3af1c23937847ac146

Score

8^/10

collection persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

firefox.exe

pid process

2024 firefox.exe

pid	process
2024	firefox.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:

2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

Processes:

vbc.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

firefox.exevbc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\Desktop\\firefox.exe -boot"	firefox.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Kennametal Inc = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Kennametal Inc\\Kennametal Inc.exe"	vbc.exe

Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

34 checkip.dyndns.org
Suspicious use of SetThreadContext 1 IoCs

Processes:

firefox.exe

description pid process target process

PID 2024 set thread context of 4360 2024 firefox.exe vbc.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 2 IoCs

Processes:

vbc.exe

pid process

4360 vbc.exe
4360 vbc.exe

flow	ioc
34	checkip.dyndns.org

description	pid	process	target process
PID 2024 set thread context of 4360	2024	firefox.exe	vbc.exe

pid	process
4360	vbc.exe
4360	vbc.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exefirefox.exevbc.exe

description	pid	process
Token: SeDebugPrivilege	3928	2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe
Token: SeDebugPrivilege	2024	firefox.exe
Token: SeDebugPrivilege	4360	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

vbc.exe

pid process

4360 vbc.exe

pid	process
4360	vbc.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exeexplorer.exefirefox.exe

description	pid	process	target process
PID 3928 wrote to memory of 4664	3928	2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe	cmd.exe
PID 3928 wrote to memory of 4664	3928	2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe	cmd.exe
PID 3928 wrote to memory of 4664	3928	2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe	cmd.exe
PID 3928 wrote to memory of 3328	3928	2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe	explorer.exe
PID 3928 wrote to memory of 3328	3928	2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe	explorer.exe
PID 3928 wrote to memory of 3328	3928	2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe	explorer.exe
PID 3236 wrote to memory of 2024	3236	explorer.exe	firefox.exe
PID 3236 wrote to memory of 2024	3236	explorer.exe	firefox.exe
PID 3236 wrote to memory of 2024	3236	explorer.exe	firefox.exe
PID 2024 wrote to memory of 4360	2024	firefox.exe	vbc.exe
PID 2024 wrote to memory of 4360	2024	firefox.exe	vbc.exe
PID 2024 wrote to memory of 4360	2024	firefox.exe	vbc.exe
PID 2024 wrote to memory of 4360	2024	firefox.exe	vbc.exe
PID 2024 wrote to memory of 4360	2024	firefox.exe	vbc.exe
PID 2024 wrote to memory of 4360	2024	firefox.exe	vbc.exe
PID 2024 wrote to memory of 4360	2024	firefox.exe	vbc.exe
PID 2024 wrote to memory of 4360	2024	firefox.exe	vbc.exe

outlook_office_path 1 IoCs

Processes:

vbc.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

outlook_win_path 1 IoCs

Processes:

vbc.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	vbc.exe

C:\Users\Admin\AppData\Local\Temp\2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe
"C:\Users\Admin\AppData\Local\Temp\2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe"
1⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3928

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a.exe" "C:\Users\Admin\Desktop\firefox.exe"
2⤵
PID:4664

C:\Windows\SysWOW64\explorer.exe
"C:\Windows\System32\explorer.exe" /c, "C:\Users\Admin\Desktop\firefox.exe"
2⤵
PID:3328

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Suspicious use of WriteProcessMemory
PID:3236

C:\Users\Admin\Desktop\firefox.exe
"C:\Users\Admin\Desktop\firefox.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2024

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
3⤵
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- outlook_office_path
- outlook_win_path
PID:4360

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1

T1064

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Scripting

1

T1064

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\Desktop\firefox.exe
Filesize
628KB

MD5
aa325b98e7e74bd29564c815adf449a8

SHA1
665f7e46049987a8eb666d66d8055ef6721d630e

SHA256
2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a

SHA512
832cceaab68c7d070eb7ad4e676164dcb283b71e80633621e92e60279cd94f35201dafc62ec8ecce1c2ad8dfa93b68e90b48d46f22c87d3af1c23937847ac146

Download Submit
C:\Users\Admin\Desktop\firefox.exe
Filesize
628KB

MD5
aa325b98e7e74bd29564c815adf449a8

SHA1
665f7e46049987a8eb666d66d8055ef6721d630e

SHA256
2d51e8839680d32501ca98ea74ccfa56189c28d483968acd8309ea38f6745f7a

SHA512
832cceaab68c7d070eb7ad4e676164dcb283b71e80633621e92e60279cd94f35201dafc62ec8ecce1c2ad8dfa93b68e90b48d46f22c87d3af1c23937847ac146

Download Submit
memory/2024-140-0x0000000006510000-0x00000000065AC000-memory.dmp

Filesize
624KB

Download
memory/2024-142-0x0000000000F02000-0x0000000000F07000-memory.dmp

Filesize
20KB

Download
memory/2024-145-0x0000000000F02000-0x0000000000F07000-memory.dmp

Filesize
20KB

Download
memory/2024-136-0x0000000000000000-mapping.dmp

Download
memory/2024-144-0x0000000000F02000-0x0000000000F07000-memory.dmp

Filesize
20KB

Download
memory/2024-138-0x0000000000F02000-0x0000000000F07000-memory.dmp

Filesize
20KB

Download
memory/2024-139-0x0000000000F02000-0x0000000000F07000-memory.dmp

Filesize
20KB

Download
memory/2024-143-0x0000000000F02000-0x0000000000F07000-memory.dmp

Filesize
20KB

Download
memory/3328-134-0x0000000000000000-mapping.dmp

Download
memory/3928-131-0x0000000005D40000-0x00000000062E4000-memory.dmp

Filesize
5.6MB

Download
memory/3928-130-0x0000000000E20000-0x0000000000EC0000-memory.dmp

Filesize
640KB

Download
memory/3928-132-0x0000000005870000-0x0000000005902000-memory.dmp

Filesize
584KB

Download
memory/4360-141-0x0000000000000000-mapping.dmp

Download
memory/4360-147-0x0000000000760000-0x0000000000796000-memory.dmp

Filesize
216KB

Download
memory/4360-148-0x00000000058C0000-0x0000000005926000-memory.dmp

Filesize
408KB

Download
memory/4360-149-0x0000000006730000-0x0000000006780000-memory.dmp

Filesize
320KB

Download
memory/4360-150-0x0000000006210000-0x000000000621A000-memory.dmp

Filesize
40KB

Download
memory/4664-133-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads