c4685f11a53a74df878aaa7076ea7e0a64c4a9489ed83961b323b4694860f3ee

General

Target

c4685f11a53a74df878aaa7076ea7e0a64c4a9489ed83961b323b4694860f3ee.exe
Size

1.5MB
MD5

54639aa125db4aebe41299332989f3a0
SHA1

068acdc404596d7941cf3ab35b90c1fff813913e
SHA256

c4685f11a53a74df878aaa7076ea7e0a64c4a9489ed83961b323b4694860f3ee
SHA512

c2aa4788b72bbe70728396b6f61aa16bba91c2364580097ff829b1372fc12d2b7ea40340b797ce6a6ae00bb34094b317d05ca874871b5b52de5a366e85df1345
SSDEEP

24576:xTOp7CMa34abMhtTEGM91uMUodM/a0MdptbGAD5WdtBGRxsCYr0aG8:5R93EtIGM91uP2M/JpAD5W4xsCSbl

Score

8^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

Windows Loader.exe

pid process

228 Windows Loader.exe

pid	process
228	Windows Loader.exe

UPX packed file 4 IoCs

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

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Windows Loader.exe	upx
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Windows Loader.exe	upx
behavioral2/memory/228-135-0x0000000000400000-0x0000000000623000-memory.dmp	upx
behavioral2/memory/228-198-0x0000000000400000-0x0000000000623000-memory.dmp	upx

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

Windows Loader.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Windows Loader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	Windows Loader.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:

c4685f11a53a74df878aaa7076ea7e0a64c4a9489ed83961b323b4694860f3ee.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	c4685f11a53a74df878aaa7076ea7e0a64c4a9489ed83961b323b4694860f3ee.exe

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

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

Windows Loader.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	Windows Loader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\BaseBoardProduct	Windows Loader.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

Windows Loader.exe

pid process

228 Windows Loader.exe
228 Windows Loader.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

Windows Loader.exe

pid process

228 Windows Loader.exe

pid	process
228	Windows Loader.exe
228	Windows Loader.exe

pid	process
228	Windows Loader.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

c4685f11a53a74df878aaa7076ea7e0a64c4a9489ed83961b323b4694860f3ee.exe

description	pid	process	target process
PID 3288 wrote to memory of 228	3288	c4685f11a53a74df878aaa7076ea7e0a64c4a9489ed83961b323b4694860f3ee.exe	Windows Loader.exe
PID 3288 wrote to memory of 228	3288	c4685f11a53a74df878aaa7076ea7e0a64c4a9489ed83961b323b4694860f3ee.exe	Windows Loader.exe
PID 3288 wrote to memory of 228	3288	c4685f11a53a74df878aaa7076ea7e0a64c4a9489ed83961b323b4694860f3ee.exe	Windows Loader.exe

C:\Users\Admin\AppData\Local\Temp\c4685f11a53a74df878aaa7076ea7e0a64c4a9489ed83961b323b4694860f3ee.exe
"C:\Users\Admin\AppData\Local\Temp\c4685f11a53a74df878aaa7076ea7e0a64c4a9489ed83961b323b4694860f3ee.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3288

C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Windows Loader.exe
"C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Windows Loader.exe" /silent /restart
2⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
PID:228

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Windows Loader.exe
Filesize
3.8MB

MD5
3976bd5fcbb7cd13f0c12bb69afc2adc

SHA1
3b6bdca414a53df7c8c5096b953c4df87a1091c7

SHA256
bf5070ef8cf03a11d25460b3e09a479183cc0fa03d0ea32e4499998f509b1a40

SHA512
0e34171ea0118f4487bc78954b9a388eac9ee203323e86746616c746a1543b8c4190397fc578d8fc5dd1e151862172fd1c444a42d4b59c18551959c2a19cf341

Download Submit
C:\Users\Admin\AppData\Local\Temp\7ZipSfx.000\Windows Loader.exe
Filesize
3.8MB

MD5
3976bd5fcbb7cd13f0c12bb69afc2adc

SHA1
3b6bdca414a53df7c8c5096b953c4df87a1091c7

SHA256
bf5070ef8cf03a11d25460b3e09a479183cc0fa03d0ea32e4499998f509b1a40

SHA512
0e34171ea0118f4487bc78954b9a388eac9ee203323e86746616c746a1543b8c4190397fc578d8fc5dd1e151862172fd1c444a42d4b59c18551959c2a19cf341

Download Submit
memory/228-149-0x0000000002460000-0x0000000002472000-memory.dmp

Filesize
72KB

Download
memory/228-135-0x0000000000400000-0x0000000000623000-memory.dmp

Filesize
2.1MB

Download
memory/228-136-0x0000000002440000-0x0000000002453000-memory.dmp

Filesize
76KB

Download
memory/228-144-0x0000000000C50000-0x0000000000C60000-memory.dmp

Filesize
64KB

Download
memory/228-132-0x0000000000000000-mapping.dmp

Download
memory/228-157-0x0000000010000000-0x0000000010021000-memory.dmp

Filesize
132KB

Download
memory/228-165-0x0000000002480000-0x0000000002491000-memory.dmp

Filesize
68KB

Download
memory/228-173-0x00000000024A0000-0x00000000024B0000-memory.dmp

Filesize
64KB

Download
memory/228-181-0x00000000024B0000-0x00000000024C0000-memory.dmp

Filesize
64KB

Download
memory/228-189-0x00000000025E0000-0x0000000002600000-memory.dmp

Filesize
128KB

Download
memory/228-197-0x00000000027C0000-0x000000000295A000-memory.dmp

Filesize
1.6MB

Download
memory/228-198-0x0000000000400000-0x0000000000623000-memory.dmp

Filesize
2.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads