3b0f48a43177be9b2b0a51e3f7a4f1c5ccf55a84356b4ba36ef447508f1d8e6b

Analysis

max time kernel
142s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
06/10/2023, 13:44

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General

Target

NEAS.d7a33e79f877edb232f06cfc6078690cexe_JC.exe
Size

204KB
MD5

d7a33e79f877edb232f06cfc6078690c
SHA1

ca8b1dd1b57771a34ddb73917ad9c132fa6f0d70
SHA256

3b0f48a43177be9b2b0a51e3f7a4f1c5ccf55a84356b4ba36ef447508f1d8e6b
SHA512

64ea2f2ae89b15be2ed4b15145d1876d66cf0ff556a3a76404d38cd56cb5374c85ff6f5268e4429534fbce60de0222302eccd757732a05e4a277db752e33cd08
SSDEEP

6144:aBs27fMLyXY7XXXD4gXXXDeXXXkjXXX4dN9KnIIIYXXX5XXXDsXXXxXXXLIIIono:aK2SXXXdXXXKXXXQXXX4xKnIIIYXXX5j

Score

7^/10

Malware Config

Signatures

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-1-5-21-1141987721-3945596982-3297311814-1000\Control Panel\International\Geo\Nation	NEAS.d7a33e79f877edb232f06cfc6078690cexe_JC.exe

Executes dropped EXE 1 IoCs

pid	Process
4604	jmahost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\jmahost.exe	NEAS.d7a33e79f877edb232f06cfc6078690cexe_JC.exe
File opened for modification	C:\Windows\Debug\jmahost.exe	NEAS.d7a33e79f877edb232f06cfc6078690cexe_JC.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	jmahost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	jmahost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	4504	NEAS.d7a33e79f877edb232f06cfc6078690cexe_JC.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4504 wrote to memory of 4520	4504	NEAS.d7a33e79f877edb232f06cfc6078690cexe_JC.exe	85
PID 4504 wrote to memory of 4520	4504	NEAS.d7a33e79f877edb232f06cfc6078690cexe_JC.exe	85
PID 4504 wrote to memory of 4520	4504	NEAS.d7a33e79f877edb232f06cfc6078690cexe_JC.exe	85

C:\Users\Admin\AppData\Local\Temp\NEAS.d7a33e79f877edb232f06cfc6078690cexe_JC.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.d7a33e79f877edb232f06cfc6078690cexe_JC.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4504
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\NEASD7~1.EXE > nul
  2⤵
  PID:4520

C:\Windows\Debug\jmahost.exe
C:\Windows\Debug\jmahost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:4604

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

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Downloads

C:\Windows\Debug\jmahost.exe

Filesize
204KB

MD5
a2db9d1cec4cba2e3bc5690d9c5d1243

SHA1
faef60f896cf4f28ad32fec7099d5d989552a0d5

SHA256
591dfe6166f1d926513b2c2db2ffd7208d48a9fa74a4dd72f8e98006fa2a6708

SHA512
a2d9064d000480c0b2588f3ac5069a94975504fa1b4687de89f32c3090e457fb1d68e8bfb424f43180387d46f602114be8a3dbf4f56e3ca6b4b2cd7df6f9b110

Download Submit
C:\Windows\debug\jmahost.exe

Filesize
204KB

MD5
a2db9d1cec4cba2e3bc5690d9c5d1243

SHA1
faef60f896cf4f28ad32fec7099d5d989552a0d5

SHA256
591dfe6166f1d926513b2c2db2ffd7208d48a9fa74a4dd72f8e98006fa2a6708

SHA512
a2d9064d000480c0b2588f3ac5069a94975504fa1b4687de89f32c3090e457fb1d68e8bfb424f43180387d46f602114be8a3dbf4f56e3ca6b4b2cd7df6f9b110

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads