xenorat | 36c3156427b6f44bbd149994ae17c422b99efc92a1dd846bf23c2e499a639232

General

Target

better.exe
Size

45KB
MD5

e1ceac9336a96cb04cc3909ba406b535
SHA1

f511cbbd228c9685067bdc81d2411031285e1c75
SHA256

36c3156427b6f44bbd149994ae17c422b99efc92a1dd846bf23c2e499a639232
SHA512

85d889cad787945820bf2c37d8bf4072dfbb13e692258b6efc00ed6ab4ec1790b1b235d0e034edd1812376ba70d650e1eb3cb95cb3bd61d91b2fb3cbd65bf6ed
SSDEEP

768:AdhO/poiiUcjlJIn89SH9Xqk5nWEZ5SbTDaxuI7CPW5G:yw+jjgn8oH9XqcnW85SbTkuI+

Score

10^/10

xenorat discovery rat trojan

Malware Config

Extracted

Family

xenorat

C2

127.0.0.1

Mutex

Xeno_rat_nd8912d

Attributes

install_path
appdata
port
4782
startup_name
Arkhavis.exe

Signatures

Detect XenoRat Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4588-1-0x00000000003F0000-0x0000000000402000-memory.dmp	family_xenorat
behavioral2/files/0x000600000002aa8d-6.dat	family_xenorat

XenorRat
XenorRat is a remote access trojan written in C#.
trojan rat xenorat

Executes dropped EXE 1 IoCs

pid	Process
3592	better.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	better.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	better.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

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

pid	Process
4208	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4588 wrote to memory of 3592	4588	better.exe	80
PID 4588 wrote to memory of 3592	4588	better.exe	80
PID 4588 wrote to memory of 3592	4588	better.exe	80
PID 3592 wrote to memory of 4208	3592	better.exe	81
PID 3592 wrote to memory of 4208	3592	better.exe	81
PID 3592 wrote to memory of 4208	3592	better.exe	81

C:\Users\Admin\AppData\Local\Temp\better.exe
"C:\Users\Admin\AppData\Local\Temp\better.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4588
- C:\Users\Admin\AppData\Roaming\XenoManager\better.exe
  "C:\Users\Admin\AppData\Roaming\XenoManager\better.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3592
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /Create /TN "Arkhavis.exe" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9069.tmp" /F
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4208

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\better.exe.log

Filesize
226B

MD5
1294de804ea5400409324a82fdc7ec59

SHA1
9a39506bc6cadf99c1f2129265b610c69d1518f7

SHA256
494398ec6108c68573c366c96aae23d35e7f9bdbb440a4aab96e86fcad5871d0

SHA512
033905cc5b4d0c0ffab2138da47e3223765146fa751c9f84b199284b653a04874c32a23aae577d2e06ce6c6b34fec62331b5fc928e3baf68dc53263ecdfa10c1

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp9069.tmp

Filesize
1KB

MD5
3bec394dfa473d398675ce8536a266b4

SHA1
dd559b15536136d8874ab16180bb2ee192437e5c

SHA256
d23fdbcb93728915ff405802af3af96a741b62ed973eb7ed0818f523db84232d

SHA512
abb87d74dbe9da78f942ba5f714da4e9439dc3afb29d61932a1189e599684422aa8f68d9433cb3afa614636165307c413329d7e78a7b0c78b90950c53a769a7a

Download Submit
C:\Users\Admin\AppData\Roaming\XenoManager\better.exe

Filesize
45KB

MD5
e1ceac9336a96cb04cc3909ba406b535

SHA1
f511cbbd228c9685067bdc81d2411031285e1c75

SHA256
36c3156427b6f44bbd149994ae17c422b99efc92a1dd846bf23c2e499a639232

SHA512
85d889cad787945820bf2c37d8bf4072dfbb13e692258b6efc00ed6ab4ec1790b1b235d0e034edd1812376ba70d650e1eb3cb95cb3bd61d91b2fb3cbd65bf6ed

Download Submit
memory/3592-16-0x0000000074F10000-0x00000000756C1000-memory.dmp

Filesize
7.7MB

Download
memory/3592-18-0x0000000074F10000-0x00000000756C1000-memory.dmp

Filesize
7.7MB

Download
memory/3592-19-0x0000000074F10000-0x00000000756C1000-memory.dmp

Filesize
7.7MB

Download
memory/4588-0-0x0000000074F1E000-0x0000000074F1F000-memory.dmp

Filesize
4KB

Download
memory/4588-1-0x00000000003F0000-0x0000000000402000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads