4dc3cb34f5d7f96c506d4d188116c2c8414ed131c7e5222d299c2497e26a8aa9

Analysis

max time kernel
141s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
07/05/2024, 12:32

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General

Target

7d5d806de08dac3e81670d25f8b5a770_NEAS.exe
Size

83KB
MD5

7d5d806de08dac3e81670d25f8b5a770
SHA1

58c1c37d70c41e854fbe5b3dbd74298de63b4b78
SHA256

4dc3cb34f5d7f96c506d4d188116c2c8414ed131c7e5222d299c2497e26a8aa9
SHA512

0cfecdc8a26691e5dfc75d20c346a157feb98383241c5e375a2bf5938f20271942dd7c4c6b640ac6735cae587aa6ff564d239947e5d7363e1ed4815671fd448c
SSDEEP

1536:yr3Z5IfQmv81a7pP1xF3yX2tM/jTEwwwEiiiiE:WJOfQm01q9X3yX2q/jTN

Score

8^/10

evasion upx

Malware Config

Signatures

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
3380	attrib.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-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation	7d5d806de08dac3e81670d25f8b5a770_NEAS.exe

Executes dropped EXE 1 IoCs

pid	Process
3128	lwshost.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3460-0-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/files/0x000c000000023b7c-3.dat	upx
behavioral2/memory/3128-5-0x0000000000400000-0x0000000000416000-memory.dmp	upx
behavioral2/memory/3128-6-0x0000000000400000-0x0000000000416000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Debug\lwshost.exe	7d5d806de08dac3e81670d25f8b5a770_NEAS.exe
File opened for modification	C:\Windows\Debug\lwshost.exe	7d5d806de08dac3e81670d25f8b5a770_NEAS.exe
File opened for modification	C:\Windows\Debug\lwshost.exe	attrib.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	lwshost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	lwshost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3460	7d5d806de08dac3e81670d25f8b5a770_NEAS.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3460 wrote to memory of 3380	3460	7d5d806de08dac3e81670d25f8b5a770_NEAS.exe	83
PID 3460 wrote to memory of 3380	3460	7d5d806de08dac3e81670d25f8b5a770_NEAS.exe	83
PID 3460 wrote to memory of 3380	3460	7d5d806de08dac3e81670d25f8b5a770_NEAS.exe	83
PID 3460 wrote to memory of 2500	3460	7d5d806de08dac3e81670d25f8b5a770_NEAS.exe	89
PID 3460 wrote to memory of 2500	3460	7d5d806de08dac3e81670d25f8b5a770_NEAS.exe	89
PID 3460 wrote to memory of 2500	3460	7d5d806de08dac3e81670d25f8b5a770_NEAS.exe	89

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3380	attrib.exe

C:\Users\Admin\AppData\Local\Temp\7d5d806de08dac3e81670d25f8b5a770_NEAS.exe
"C:\Users\Admin\AppData\Local\Temp\7d5d806de08dac3e81670d25f8b5a770_NEAS.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3460
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\lwshost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - Views/modifies file attributes
  PID:3380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\7D5D80~1.EXE > nul
  2⤵
  PID:2500

C:\Windows\Debug\lwshost.exe
C:\Windows\Debug\lwshost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:3128

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\debug\lwshost.exe

Filesize
83KB

MD5
b2e7d79af49733b6ab787a660a61dc82

SHA1
a384edb97448dc39e05d88bb6fffb4faa3b94caa

SHA256
89485c734fce2c7793892b95b285f0087fd76ee669d87090b4673312a8e7b9fa

SHA512
c79bd2282664f9b9daf61f1ffc8863a686b4c26b93a927bfabf021ce9108ad946dfba67840632e4306690d3e6314a37507a7704fcd38f6c5582053d515f86cc5

Download Submit
memory/3128-5-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3128-6-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/3460-0-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads