Malware Analysis Report

2025-03-15 03:55

Sample ID 230515-hcrw4shd8x
Target 685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73
SHA256 685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73
Tags
fatalrat infostealer rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73

Threat Level: Known bad

The file 685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73 was found to be: Known bad.

Malicious Activity Summary

fatalrat infostealer rat

FatalRat

Fatal Rat payload

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-05-15 06:35

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-05-15 06:35

Reported

2023-05-15 06:38

Platform

win7-20230220-en

Max time kernel

140s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe"

Signatures

FatalRat

infostealer rat fatalrat

Fatal Rat payload

rat infostealer
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe

"C:\Users\Admin\AppData\Local\Temp\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe"

C:\Users\Admin\AppData\Local\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe

"C:\Users\Admin\AppData\Local\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 sinolin.e2.luyouxia.net udp
CN 124.248.66.67:21185 sinolin.e2.luyouxia.net tcp
CN 124.248.66.67:21185 sinolin.e2.luyouxia.net tcp
CN 124.248.66.67:21185 sinolin.e2.luyouxia.net tcp
CN 124.248.66.67:21185 sinolin.e2.luyouxia.net tcp
CN 124.248.66.67:21185 sinolin.e2.luyouxia.net tcp
CN 124.248.66.67:21185 sinolin.e2.luyouxia.net tcp

Files

memory/1972-54-0x0000000010000000-0x000000001002A000-memory.dmp

\Users\Admin\AppData\Local\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe

MD5 b360990b86ddae9902108e6229ea9314
SHA1 f0d1f4df642a0835b9c3a330c150f9e2c9c4ce11
SHA256 685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73
SHA512 b77b66f0d37b9af38586cf4b37b72fef31b5c779a67ab6ddd43206b41c94285c559fecbc90fab5c02d9eb6ae9c84acdbf4d215c82915241574bcc7d9a38c57cc

\Users\Admin\AppData\Local\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe

MD5 b360990b86ddae9902108e6229ea9314
SHA1 f0d1f4df642a0835b9c3a330c150f9e2c9c4ce11
SHA256 685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73
SHA512 b77b66f0d37b9af38586cf4b37b72fef31b5c779a67ab6ddd43206b41c94285c559fecbc90fab5c02d9eb6ae9c84acdbf4d215c82915241574bcc7d9a38c57cc

C:\Users\Admin\AppData\Local\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe

MD5 b360990b86ddae9902108e6229ea9314
SHA1 f0d1f4df642a0835b9c3a330c150f9e2c9c4ce11
SHA256 685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73
SHA512 b77b66f0d37b9af38586cf4b37b72fef31b5c779a67ab6ddd43206b41c94285c559fecbc90fab5c02d9eb6ae9c84acdbf4d215c82915241574bcc7d9a38c57cc

C:\Users\Admin\AppData\Local\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe

MD5 b360990b86ddae9902108e6229ea9314
SHA1 f0d1f4df642a0835b9c3a330c150f9e2c9c4ce11
SHA256 685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73
SHA512 b77b66f0d37b9af38586cf4b37b72fef31b5c779a67ab6ddd43206b41c94285c559fecbc90fab5c02d9eb6ae9c84acdbf4d215c82915241574bcc7d9a38c57cc

memory/1212-69-0x0000000010000000-0x000000001002A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-05-15 06:35

Reported

2023-05-15 06:38

Platform

win10v2004-20230221-en

Max time kernel

139s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe"

Signatures

FatalRat

infostealer rat fatalrat

Fatal Rat payload

rat infostealer
Description Indicator Process Target
N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe

"C:\Users\Admin\AppData\Local\Temp\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe"

C:\Users\Admin\AppData\Local\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe

"C:\Users\Admin\AppData\Local\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe"

Network

Country Destination Domain Proto
US 40.77.2.164:443 tcp
US 8.8.8.8:53 164.2.77.40.in-addr.arpa udp
US 8.8.8.8:53 14.110.152.52.in-addr.arpa udp
US 52.152.110.14:443 tcp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 sinolin.e2.luyouxia.net udp
CN 124.248.66.67:21185 sinolin.e2.luyouxia.net tcp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
CN 124.248.66.67:21185 sinolin.e2.luyouxia.net tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 sinolin.e2.luyouxia.net udp
CN 124.248.66.67:21185 sinolin.e2.luyouxia.net tcp
US 8.8.8.8:53 203.151.224.20.in-addr.arpa udp
CN 124.248.66.67:21185 sinolin.e2.luyouxia.net tcp
US 93.184.221.240:80 tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 204.79.197.203:80 tcp
CN 124.248.66.67:21185 sinolin.e2.luyouxia.net tcp
CN 124.248.66.67:21185 sinolin.e2.luyouxia.net tcp
CN 124.248.66.67:21185 sinolin.e2.luyouxia.net tcp

Files

memory/4644-133-0x0000000010000000-0x000000001002A000-memory.dmp

C:\Users\Admin\AppData\Local\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe

MD5 b360990b86ddae9902108e6229ea9314
SHA1 f0d1f4df642a0835b9c3a330c150f9e2c9c4ce11
SHA256 685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73
SHA512 b77b66f0d37b9af38586cf4b37b72fef31b5c779a67ab6ddd43206b41c94285c559fecbc90fab5c02d9eb6ae9c84acdbf4d215c82915241574bcc7d9a38c57cc

C:\Users\Admin\AppData\Local\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe

MD5 b360990b86ddae9902108e6229ea9314
SHA1 f0d1f4df642a0835b9c3a330c150f9e2c9c4ce11
SHA256 685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73
SHA512 b77b66f0d37b9af38586cf4b37b72fef31b5c779a67ab6ddd43206b41c94285c559fecbc90fab5c02d9eb6ae9c84acdbf4d215c82915241574bcc7d9a38c57cc

C:\Users\Admin\AppData\Local\685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73.exe

MD5 b360990b86ddae9902108e6229ea9314
SHA1 f0d1f4df642a0835b9c3a330c150f9e2c9c4ce11
SHA256 685dde158db35f724e25152cdd0c9e399c3e817c6447e50abd66767ad1e67e73
SHA512 b77b66f0d37b9af38586cf4b37b72fef31b5c779a67ab6ddd43206b41c94285c559fecbc90fab5c02d9eb6ae9c84acdbf4d215c82915241574bcc7d9a38c57cc