xenorat | 903ad14b353ea5efc0dfb4cb91421a17a245aa0b5e45b9ff6653edd2a881df7a

General

Target

SteamUDP.exe
Size

112KB
MD5

c98e2b56dcd5a3f3aaa0abb0278755b2
SHA1

b5999f967c235e3f7147a5fabdf8429bee5a36ff
SHA256

903ad14b353ea5efc0dfb4cb91421a17a245aa0b5e45b9ff6653edd2a881df7a
SHA512

0c7a4db2e66e601cf0a23392991ddde9d520cfb07d596323a8469c92bddb000e395d9af929d335cc17443412679b7f40224c298190353a9cf8b46dfda4f27153
SSDEEP

1536:vw+jjgnJ2H9XqcnW85SbThuIkKuZ+8uZ3nV5XS65mkrPZ58kzQ+e+e+g:vw+jqJ491UbTh3h7J7M+e+e+g

Score

10^/10

xenorat rat trojan

Malware Config

Extracted

Family

xenorat

C2

37.120.141.155

Mutex

SteamUDP_FULL3

Attributes

delay
5000
install_path
temp
port
22914
startup_name
SteamUDP

Signatures

XenorRat
XenorRat is a remote access trojan written in C#.
trojan rat xenorat
Executes dropped EXE 1 IoCs

Processes:

SteamUDP.exe

pid process

2468 SteamUDP.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

2888 schtasks.exe

pid	process
2888	schtasks.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

SteamUDP.exe

pid	process
2468	SteamUDP.exe
2468	SteamUDP.exe
2468	SteamUDP.exe
2468	SteamUDP.exe
2468	SteamUDP.exe
2468	SteamUDP.exe
2468	SteamUDP.exe
2468	SteamUDP.exe
2468	SteamUDP.exe
2468	SteamUDP.exe
2468	SteamUDP.exe
2468	SteamUDP.exe
2468	SteamUDP.exe
2468	SteamUDP.exe
2468	SteamUDP.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

SteamUDP.exe

description pid process

Token: SeDebugPrivilege 2468 SteamUDP.exe

description	pid	process
Token: SeDebugPrivilege	2468	SteamUDP.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

SteamUDP.exeSteamUDP.execmd.exe

description	pid	process	target process
PID 3192 wrote to memory of 2468	3192	SteamUDP.exe	SteamUDP.exe
PID 3192 wrote to memory of 2468	3192	SteamUDP.exe	SteamUDP.exe
PID 3192 wrote to memory of 2468	3192	SteamUDP.exe	SteamUDP.exe
PID 2468 wrote to memory of 2888	2468	SteamUDP.exe	schtasks.exe
PID 2468 wrote to memory of 2888	2468	SteamUDP.exe	schtasks.exe
PID 2468 wrote to memory of 2888	2468	SteamUDP.exe	schtasks.exe
PID 2468 wrote to memory of 3272	2468	SteamUDP.exe	schtasks.exe
PID 2468 wrote to memory of 3272	2468	SteamUDP.exe	schtasks.exe
PID 2468 wrote to memory of 3272	2468	SteamUDP.exe	schtasks.exe
PID 2468 wrote to memory of 1696	2468	SteamUDP.exe	schtasks.exe
PID 2468 wrote to memory of 1696	2468	SteamUDP.exe	schtasks.exe
PID 2468 wrote to memory of 1696	2468	SteamUDP.exe	schtasks.exe
PID 2468 wrote to memory of 2380	2468	SteamUDP.exe	cmd.exe
PID 2468 wrote to memory of 2380	2468	SteamUDP.exe	cmd.exe
PID 2468 wrote to memory of 2380	2468	SteamUDP.exe	cmd.exe
PID 2380 wrote to memory of 2940	2380	cmd.exe	choice.exe
PID 2380 wrote to memory of 2940	2380	cmd.exe	choice.exe
PID 2380 wrote to memory of 2940	2380	cmd.exe	choice.exe

C:\Users\Admin\AppData\Local\Temp\SteamUDP.exe
"C:\Users\Admin\AppData\Local\Temp\SteamUDP.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3192

C:\Users\Admin\AppData\Local\Temp\XenoManager\SteamUDP.exe
"C:\Users\Admin\AppData\Local\Temp\XenoManager\SteamUDP.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2468

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /Create /TN "SteamUDP" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7976.tmp" /F
3⤵
- Scheduled Task/Job: Scheduled Task
PID:2888

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /query /v /fo csv
3⤵
PID:3272

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /delete /tn "\SteamUDP" /f
3⤵
PID:1696

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\XenoManager\SteamUDP.exe"
3⤵
- Suspicious use of WriteProcessMemory
PID:2380

C:\Windows\SysWOW64\choice.exe
choice /C Y /N /D Y /T 3
4⤵
PID:2940

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\SteamUDP.exe.log
Filesize
226B

MD5
957779c42144282d8cd83192b8fbc7cf

SHA1
de83d08d2cca06b9ff3d1ef239d6b60b705d25fe

SHA256
0d7ca7ba65e2b465e4878e324ceab8f8981f5ec06dcf5bc32559a4467a9c7d51

SHA512
f1549c61b4f2906d13b2aabb74772c2bc826cd42373d7bb6c48cbb125d5aa2ec17617e6b5e67e8aae3bb5790cc831cdba48a45008ed01df4fba8be448cce39fd

Download Submit
C:\Users\Admin\AppData\Local\Temp\XenoManager\SteamUDP.exe
Filesize
112KB

MD5
c98e2b56dcd5a3f3aaa0abb0278755b2

SHA1
b5999f967c235e3f7147a5fabdf8429bee5a36ff

SHA256
903ad14b353ea5efc0dfb4cb91421a17a245aa0b5e45b9ff6653edd2a881df7a

SHA512
0c7a4db2e66e601cf0a23392991ddde9d520cfb07d596323a8469c92bddb000e395d9af929d335cc17443412679b7f40224c298190353a9cf8b46dfda4f27153

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7976.tmp
Filesize
1KB

MD5
3e416c7f65c19033c2c17e7f0bc2bfd8

SHA1
edc2d8b19e94e8d29579baf5e01c5fe057425712

SHA256
fb1d16435bee9ea3fa3d171f3d01818c1c1dd3ce5e47d9292c7b0089ad6f2773

SHA512
debae6c61bcf8e34575d4eec2334c27b0205b5a6b428e9f17ff25a55bea845bb5131c68f0ba7384e781b2b9d2dfd1eb2ce93aef47d4fe2dee34a21c147973524

Download Submit
memory/2468-9-0x0000000073E30000-0x000000007451E000-memory.dmp

Filesize
6.9MB

Download
memory/2468-10-0x0000000073E30000-0x000000007451E000-memory.dmp

Filesize
6.9MB

Download
memory/2468-13-0x0000000005540000-0x00000000055A6000-memory.dmp

Filesize
408KB

Download
memory/2468-14-0x0000000073E30000-0x000000007451E000-memory.dmp

Filesize
6.9MB

Download
memory/2468-15-0x0000000073E30000-0x000000007451E000-memory.dmp

Filesize
6.9MB

Download
memory/3192-0-0x0000000073E3E000-0x0000000073E3F000-memory.dmp

Filesize
4KB

Download
memory/3192-1-0x0000000000DB0000-0x0000000000DD2000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads