7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4

Analysis

max time kernel
205s
max time network
209s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 15:54

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General

Target

7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4.exe
Size

208KB
MD5

43c9c2b3c500429bef22b1146e30256e
SHA1

a6cd74d9a5dad69c64233c2148c962de02107d6b
SHA256

7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4
SHA512

b773d83c46f3af89c7f32a826718684499060b520a3d63ed7db77796c77b27827ba81c8eba76c7a869dcb2ce1e6fc3fa0a2794f87f9d862b4817547886e38702
SSDEEP

3072:IVHgCc4xGvbwcU9KQ2BBAHmaPxNVoeb5Eu:VCc4xGxWKQ2Bonx5

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

jusched.exe

pid process

2816 jusched.exe

pid	process
2816	jusched.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

Processes:

7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run	7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4.exe

Drops file in Program Files directory 2 IoCs

Processes:

7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4.exe

description	ioc	process
File created	C:\Program Files (x86)\8aacac2e\jusched.exe	7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4.exe
File created	C:\Program Files (x86)\8aacac2e\8aacac2e	7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4.exe

Drops file in Windows directory 1 IoCs

Processes:

7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4.exe

description ioc process

File created C:\Windows\Tasks\Update23.job 7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File created	C:\Windows\Tasks\Update23.job	7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4.exe

description	pid	process	target process
PID 4136 wrote to memory of 2816	4136	7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4.exe	jusched.exe
PID 4136 wrote to memory of 2816	4136	7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4.exe	jusched.exe
PID 4136 wrote to memory of 2816	4136	7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4.exe	jusched.exe

C:\Users\Admin\AppData\Local\Temp\7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4.exe
"C:\Users\Admin\AppData\Local\Temp\7a13fc81dae9c4c5f36ef12ba1fde7bf89f650459ac138a65627e61baa4b42d4.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4136

C:\Program Files (x86)\8aacac2e\jusched.exe
"C:\Program Files (x86)\8aacac2e\jusched.exe"
2⤵
- Executes dropped EXE
PID:2816

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\8aacac2e\8aacac2e
Filesize
17B

MD5
134c1d489094d6d3399f65b0e9aebc1f

SHA1
612a57fbe6ed3ab9c15b39451171d813314a28d5

SHA256
54f9150d1268f7b4b83dd9fc3ec32274bf749715a5806ff3ca5262f5427d6781

SHA512
b09bf60e4850d05261d81a124a647dd111f42480224eae8a3bd2f64736c38119953703f868ad34194a7ae6dad6aabff4081ba73df262bbe9f5327867c56a48ed

Download Submit
C:\Program Files (x86)\8aacac2e\jusched.exe
Filesize
208KB

MD5
e979f1c98f62dc4ca7bca6ab87cdbf97

SHA1
9c363c2c270932784ff99e1775730888f7df9c71

SHA256
5ae61e3f12af2bf5fcd99b52275af0aeca611e1510192216c0ab9513e552695b

SHA512
5a1c44e05ef4c128ee7e040892b7769653c3399609736df8c7a6ef565046b1f3b9c551606dc4eb698e2155d80263d802dd8e4d15a9edde178e336bfd6c6b872a

Download Submit
C:\Program Files (x86)\8aacac2e\jusched.exe
Filesize
208KB

MD5
e979f1c98f62dc4ca7bca6ab87cdbf97

SHA1
9c363c2c270932784ff99e1775730888f7df9c71

SHA256
5ae61e3f12af2bf5fcd99b52275af0aeca611e1510192216c0ab9513e552695b

SHA512
5a1c44e05ef4c128ee7e040892b7769653c3399609736df8c7a6ef565046b1f3b9c551606dc4eb698e2155d80263d802dd8e4d15a9edde178e336bfd6c6b872a

Download Submit
memory/2816-133-0x0000000000000000-mapping.dmp

Download
memory/2816-137-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/2816-139-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/4136-132-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download
memory/4136-136-0x0000000000400000-0x0000000000446000-memory.dmp

Filesize
280KB

Download