b123d481020439b084064e532e6a158a38fd9c4a279478cda6a2a4929cc59672

Analysis

max time kernel
151s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2022 00:35

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General

Target

b123d481020439b084064e532e6a158a38fd9c4a279478cda6a2a4929cc59672.exe
Size

196KB
MD5

2ebee12be851ff81ad38c76e079b6340
SHA1

76b2f46f7289f657bff71d63521ca307a80f8022
SHA256

b123d481020439b084064e532e6a158a38fd9c4a279478cda6a2a4929cc59672
SHA512

01b33bc21ffd43ef4f6199bf0db2eb0b78d105c618a8aee891e05ca944e4a601ba1b7ee03466d57b3285926638038d27045b4eb9e1dbcf510ef314404c2e2062
SSDEEP

1536:aXBYjfC24mFVsIgvo3X4iZpTha5VlA8mP7aoL8E:aX+0mFmIgvo4iZhha5r6aoL8E

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

jusched.exe

pid process

4768 jusched.exe

pid	process
4768	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:

b123d481020439b084064e532e6a158a38fd9c4a279478cda6a2a4929cc59672.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	b123d481020439b084064e532e6a158a38fd9c4a279478cda6a2a4929cc59672.exe

Drops file in Program Files directory 3 IoCs

Processes:

b123d481020439b084064e532e6a158a38fd9c4a279478cda6a2a4929cc59672.exe

description	ioc	process
File created	C:\Program Files (x86)\c3fa0e79\info_a	b123d481020439b084064e532e6a158a38fd9c4a279478cda6a2a4929cc59672.exe
File created	C:\Program Files (x86)\c3fa0e79\jusched.exe	b123d481020439b084064e532e6a158a38fd9c4a279478cda6a2a4929cc59672.exe
File created	C:\Program Files (x86)\c3fa0e79\c3fa0e79	b123d481020439b084064e532e6a158a38fd9c4a279478cda6a2a4929cc59672.exe

Drops file in Windows directory 1 IoCs

Processes:

b123d481020439b084064e532e6a158a38fd9c4a279478cda6a2a4929cc59672.exe

description ioc process

File created C:\Windows\Tasks\Update23.job b123d481020439b084064e532e6a158a38fd9c4a279478cda6a2a4929cc59672.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	b123d481020439b084064e532e6a158a38fd9c4a279478cda6a2a4929cc59672.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

b123d481020439b084064e532e6a158a38fd9c4a279478cda6a2a4929cc59672.exe

description	pid	process	target process
PID 4348 wrote to memory of 4768	4348	b123d481020439b084064e532e6a158a38fd9c4a279478cda6a2a4929cc59672.exe	jusched.exe
PID 4348 wrote to memory of 4768	4348	b123d481020439b084064e532e6a158a38fd9c4a279478cda6a2a4929cc59672.exe	jusched.exe
PID 4348 wrote to memory of 4768	4348	b123d481020439b084064e532e6a158a38fd9c4a279478cda6a2a4929cc59672.exe	jusched.exe

C:\Users\Admin\AppData\Local\Temp\b123d481020439b084064e532e6a158a38fd9c4a279478cda6a2a4929cc59672.exe
"C:\Users\Admin\AppData\Local\Temp\b123d481020439b084064e532e6a158a38fd9c4a279478cda6a2a4929cc59672.exe"
1⤵
- Checks computer location settings
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4348

C:\Program Files (x86)\c3fa0e79\jusched.exe
"C:\Program Files (x86)\c3fa0e79\jusched.exe"
2⤵
- Executes dropped EXE
PID:4768

Network

MITRE ATT&CK Matrix ATT&CK v6

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

Replay Monitor

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Downloads

C:\Program Files (x86)\c3fa0e79\c3fa0e79
Filesize
17B

MD5
bff3d8f76e182194c4a2abf1aabba9f3

SHA1
07e5b604bb505a800b3e0ac16fee483b70595768

SHA256
6bc8a4f93eaa1b3e7cfa696855bf6a852cf6555d694bc03e337261a27e58246f

SHA512
0c5def3bb01ed166d4135190e131c27be4b6039987e269b6c3fca07677b3c637868397f207df631a098182a6bd3c795e6dd34541f82c5ecd6062441af0af7f50

Download Submit
C:\Program Files (x86)\c3fa0e79\info_a
Filesize
12B

MD5
731a92fb0c843b25e3e0a8c7e25825a4

SHA1
3f6b3f5086389639e803483fd1f8bff83e66fb55

SHA256
f9dd2c0a06f428f7ba2dc7cde9d174d4394f3b73ab2a52c18c2efa6ba7c830b4

SHA512
f571a0bd097b35a586c940d8a5156680933ab1b6b72c18ed43653efe14dc7113085afeec2dbaff0633b99d4e08ea245a405af8593aa3b453ee3c3b1d7bbb17b9

Download Submit
C:\Program Files (x86)\c3fa0e79\jusched.exe
Filesize
196KB

MD5
17611647b61cc6309317c4a1f2455cf5

SHA1
9cc50aa8308f798c18d7470abc02975af3d70725

SHA256
fb1cc6e6646301b390d74fe3d720d65b4de32d60c64a957f875eaa318f777cd7

SHA512
96f7ff9aad5d773118c46518879485b45de75f740028d58dcaf8b3dab2b80f2a52ff182c0c4baf6e3927e528ba7a7321166f1bc469bb9775005e84590a9f7216

Download Submit
C:\Program Files (x86)\c3fa0e79\jusched.exe
Filesize
196KB

MD5
17611647b61cc6309317c4a1f2455cf5

SHA1
9cc50aa8308f798c18d7470abc02975af3d70725

SHA256
fb1cc6e6646301b390d74fe3d720d65b4de32d60c64a957f875eaa318f777cd7

SHA512
96f7ff9aad5d773118c46518879485b45de75f740028d58dcaf8b3dab2b80f2a52ff182c0c4baf6e3927e528ba7a7321166f1bc469bb9775005e84590a9f7216

Download Submit
memory/4348-132-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4348-133-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4348-136-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4768-134-0x0000000000000000-mapping.dmp

Download
memory/4768-138-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download
memory/4768-140-0x0000000000400000-0x0000000000466000-memory.dmp

Filesize
408KB

Download