fcb58f4c97fac06d8fd8e8e229a24cd11f0e466baacf6b8207851064a6efa2fb

Analysis

max time kernel
143s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231025-en
resource tags

arch:x64arch:x86image:win10v2004-20231025-enlocale:en-usos:windows10-2004-x64system
submitted
12/11/2023, 02:48

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General

Target

fcb58f4c97fac06d8fd8e8e229a24cd11f0e466baacf6b8207851064a6efa2fb.exe
Size

193KB
MD5

09afce5d89c2e348cb24ed249cc6d155
SHA1

1e2c67baf52227cc66c9c35b7925f51a32f15965
SHA256

fcb58f4c97fac06d8fd8e8e229a24cd11f0e466baacf6b8207851064a6efa2fb
SHA512

2579c8993f3deb9fb83a1dc45b28bae49c3cb24241d96c57230c0ae8c952ff8a3ef28e414d7c8ab9e16a626ff3e85e607b246ff87cb7ab4d1c0362ad289b76cd
SSDEEP

6144:rBs27MMLyX5HXXXDTXXXOGqIII+pXXX5AYjKXXXDoXXXG6XXXxXXXLIIIEAkOCO1:rK20HXXX/XXXFqIIIcXXX5j2XXXcXXXg

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-1-5-21-177160434-2093019976-369403398-1000\Control Panel\International\Geo\Nation	fcb58f4c97fac06d8fd8e8e229a24cd11f0e466baacf6b8207851064a6efa2fb.exe

Executes dropped EXE 1 IoCs

pid	Process
1904	jmahost.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Debug\jmahost.exe	fcb58f4c97fac06d8fd8e8e229a24cd11f0e466baacf6b8207851064a6efa2fb.exe
File opened for modification	C:\Windows\Debug\jmahost.exe	fcb58f4c97fac06d8fd8e8e229a24cd11f0e466baacf6b8207851064a6efa2fb.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	1768	fcb58f4c97fac06d8fd8e8e229a24cd11f0e466baacf6b8207851064a6efa2fb.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1768 wrote to memory of 1232	1768	fcb58f4c97fac06d8fd8e8e229a24cd11f0e466baacf6b8207851064a6efa2fb.exe	90
PID 1768 wrote to memory of 1232	1768	fcb58f4c97fac06d8fd8e8e229a24cd11f0e466baacf6b8207851064a6efa2fb.exe	90
PID 1768 wrote to memory of 1232	1768	fcb58f4c97fac06d8fd8e8e229a24cd11f0e466baacf6b8207851064a6efa2fb.exe	90

C:\Users\Admin\AppData\Local\Temp\fcb58f4c97fac06d8fd8e8e229a24cd11f0e466baacf6b8207851064a6efa2fb.exe
"C:\Users\Admin\AppData\Local\Temp\fcb58f4c97fac06d8fd8e8e229a24cd11f0e466baacf6b8207851064a6efa2fb.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1768
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\FCB58F~1.EXE > nul
  2⤵
  PID:1232

C:\Windows\Debug\jmahost.exe
C:\Windows\Debug\jmahost.exe
1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:1904

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
193KB

MD5
5d5b2721825f44d40518c33414d8872a

SHA1
acdf5dc8267306b09054a5868f623a4156ec1a84

SHA256
3197522e4c7e4c3a6b1e6db2d4a2720edb891d3f4263133e8be5392b096cdbe8

SHA512
f68669174f03d99ffbc1177fde4d724d97242d510eb2d80ccc1c1b7d0c6e977216fb508ff1dd6bb60200e43bcd805bdf592e85218e40407f9032041d5af7a259

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

Filesize
193KB

MD5
5d5b2721825f44d40518c33414d8872a

SHA1
acdf5dc8267306b09054a5868f623a4156ec1a84

SHA256
3197522e4c7e4c3a6b1e6db2d4a2720edb891d3f4263133e8be5392b096cdbe8

SHA512
f68669174f03d99ffbc1177fde4d724d97242d510eb2d80ccc1c1b7d0c6e977216fb508ff1dd6bb60200e43bcd805bdf592e85218e40407f9032041d5af7a259

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads