4eeb5d8830e378c5c351d8ea1f8b370364e6ab530573e1f609d8d459e3f23b1a

Analysis

max time kernel
151s
max time network
222s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
16-05-2024 18:55

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General

Target

Lime-Worm-0.5.8D\Stub\Stub.exe
Size

23KB
MD5

1caf905bb41f2ad4276434e0ffc98e6d
SHA1

3c3a8365d35e4ca5afd31cbe78730878396a4dfd
SHA256

140fe71dd70d34732730dd15d685510f3f1c0e46d5d0ff19e93b6eac183ad13e
SHA512

23ada7ee3c77853915ea33f03e75e16a717179089539854d7ac25d4d757a69b18f3359530a0733f78fb0440f9be0400a0c0c6b0a3f3163cfb78c10f14fce9076
SSDEEP

384:J+phBgqtdAj8g5Q6XUb1GIcopFK47v+vcxhKNjmJj1Qro0wdH1FM:JcArzXUb9NRqVNaU01G

Score

1^/10

Malware Config

Signatures

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

dw20.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

dw20.exe

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS dw20.exe
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU dw20.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

dw20.exe

description pid process

Token: SeBackupPrivilege 2248 dw20.exe
Token: SeBackupPrivilege 2248 dw20.exe
Suspicious use of WriteProcessMemory 2 IoCs

Processes:

Stub.exe

description pid process target process

PID 1968 wrote to memory of 2248 1968 Stub.exe dw20.exe
PID 1968 wrote to memory of 2248 1968 Stub.exe dw20.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

description	pid	process
Token: SeBackupPrivilege	2248	dw20.exe
Token: SeBackupPrivilege	2248	dw20.exe

description	pid	process	target process
PID 1968 wrote to memory of 2248	1968	Stub.exe	dw20.exe
PID 1968 wrote to memory of 2248	1968	Stub.exe	dw20.exe

C:\Users\Admin\AppData\Local\Temp\Lime-Worm-0.5.8D\Stub\Stub.exe
"C:\Users\Admin\AppData\Local\Temp\Lime-Worm-0.5.8D\Stub\Stub.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1968

C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
dw20.exe -x -s 776
2⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:2248

Network

MITRE ATT&CK Matrix ATT&CK v13

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

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/1968-0-0x00007FF894315000-0x00007FF894316000-memory.dmp

Filesize
4KB

Download
memory/1968-1-0x00007FF894060000-0x00007FF894A01000-memory.dmp

Filesize
9.6MB

Download
memory/1968-2-0x000000001B8E0000-0x000000001B986000-memory.dmp

Filesize
664KB

Download
memory/1968-9-0x00007FF894060000-0x00007FF894A01000-memory.dmp

Filesize
9.6MB

Download