01b33258c704cce24861298cdf04deb2e7b094114f443433e1733c968f6fe378

Analysis

max time kernel
143s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20231020-en
resource tags

arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
submitted
01/11/2023, 08:14

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General

Target

NEAS.0a704841ef7ff2575bc8e136125162e0_JC.exe
Size

5.4MB
MD5

0a704841ef7ff2575bc8e136125162e0
SHA1

590979dd1d403ae3b1270a0e7f6d76cc5f838db6
SHA256

01b33258c704cce24861298cdf04deb2e7b094114f443433e1733c968f6fe378
SHA512

59d3612ca3c6e37b3a62ea366e853afa2313899b8d2f804fb154ba8b54d61e2dd1ef32e3adf8699e57696389b6f7cd11d59e8997aad8d23802a8bbdb7903f608
SSDEEP

98304:V8sjkhhRWieWT0ywsagZ9VeXD3L2ESg+5pX0UiJ/jz/5kylU:rj2hRPeWvnzwrLP25pk/JLz/5zm

Score

7^/10

upx

Malware Config

Signatures

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	WindowsLoader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	WindowsLoader.exe

Executes dropped EXE 1 IoCs

pid	Process
1992	WindowsLoader.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x0007000000022e55-6.dat	upx
behavioral2/files/0x0007000000022e55-7.dat	upx
behavioral2/memory/1992-8-0x0000000000400000-0x0000000000623000-memory.dmp	upx
behavioral2/memory/1992-71-0x0000000000400000-0x0000000000623000-memory.dmp	upx
behavioral2/memory/1992-72-0x0000000000400000-0x0000000000623000-memory.dmp	upx

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

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key created	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	WindowsLoader.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\BaseBoardProduct	WindowsLoader.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1992	WindowsLoader.exe
1992	WindowsLoader.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	1992	WindowsLoader.exe
Token: SeIncBasePriorityPrivilege	1992	WindowsLoader.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1992	WindowsLoader.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1248 wrote to memory of 1992	1248	NEAS.0a704841ef7ff2575bc8e136125162e0_JC.exe	88
PID 1248 wrote to memory of 1992	1248	NEAS.0a704841ef7ff2575bc8e136125162e0_JC.exe	88
PID 1248 wrote to memory of 1992	1248	NEAS.0a704841ef7ff2575bc8e136125162e0_JC.exe	88

C:\Users\Admin\AppData\Local\Temp\NEAS.0a704841ef7ff2575bc8e136125162e0_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.0a704841ef7ff2575bc8e136125162e0_JC.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1248
- C:\Users\Admin\AppData\Local\Temp\WindowsLoader.exe
  C:\Users\Admin\AppData\Local\Temp\WindowsLoader.exe
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  PID:1992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
3.8MB

MD5
323c0fd51071400b51eedb1be90a8188

SHA1
0efc35935957c25193bbe9a83ab6caa25a487ada

SHA256
2f2aba1e074f5f4baa08b524875461889f8f04d4ffc43972ac212e286022ab94

SHA512
4c501c7135962e2f02b68d6069f2191ddb76f990528dacd209955a44972122718b9598400ba829abab2d4345b4e1a4b93453c8e7ba42080bd492a34cf8443e7e

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

Filesize
3.8MB

MD5
323c0fd51071400b51eedb1be90a8188

SHA1
0efc35935957c25193bbe9a83ab6caa25a487ada

SHA256
2f2aba1e074f5f4baa08b524875461889f8f04d4ffc43972ac212e286022ab94

SHA512
4c501c7135962e2f02b68d6069f2191ddb76f990528dacd209955a44972122718b9598400ba829abab2d4345b4e1a4b93453c8e7ba42080bd492a34cf8443e7e

Download Submit
memory/1992-8-0x0000000000400000-0x0000000000623000-memory.dmp

Filesize
2.1MB

Download
memory/1992-9-0x0000000002460000-0x0000000002473000-memory.dmp

Filesize
76KB

Download
memory/1992-10-0x00000000025E0000-0x0000000002783000-memory.dmp

Filesize
1.6MB

Download
memory/1992-18-0x0000000000A60000-0x0000000000A70000-memory.dmp

Filesize
64KB

Download
memory/1992-23-0x0000000002480000-0x0000000002492000-memory.dmp

Filesize
72KB

Download
memory/1992-31-0x0000000010000000-0x0000000010021000-memory.dmp

Filesize
132KB

Download
memory/1992-39-0x00000000024A0000-0x00000000024B1000-memory.dmp

Filesize
68KB

Download
memory/1992-47-0x00000000024C0000-0x00000000024D0000-memory.dmp

Filesize
64KB

Download
memory/1992-55-0x0000000002E40000-0x0000000002E50000-memory.dmp

Filesize
64KB

Download
memory/1992-63-0x0000000002E50000-0x0000000002E70000-memory.dmp

Filesize
128KB

Download
memory/1992-71-0x0000000000400000-0x0000000000623000-memory.dmp

Filesize
2.1MB

Download
memory/1992-72-0x0000000000400000-0x0000000000623000-memory.dmp

Filesize
2.1MB

Download