xenorat | e1b5a90f068ee75d794e62acb4386e49a2e48b37d58de79801b437218dc78765

General

Target

Client-build.exe
Size

45KB
MD5

304d0e77da53af75ea9b70012a78348d
SHA1

2abfcf36150e5b19e90a2df133d5d5ccdc986b7b
SHA256

e1b5a90f068ee75d794e62acb4386e49a2e48b37d58de79801b437218dc78765
SHA512

0782a2840a73ae9459ba20e7ac9bd516efa55e65c2453b6d7bc7f68b39a63012d762c678e48c2fcaeb6418b31b6d2652fa7c4f33bd6ca0e53dbc018040fff054
SSDEEP

768:WdhO/poiiUcjlJInU9SH9Xqk5nWEZ5SbTDaauI7CPW5p:Aw+jjgnUoH9XqcnW85SbTfuIR

Score

10^/10

xenorat discovery rat trojan

Malware Config

Extracted

Family

xenorat

C2

127.0.0.1

Mutex

Xeno_rat_nd8912d

Attributes

delay
5000
install_path
appdata
port
4444
startup_name
WindowsSys64

Signatures

Detect XenoRat Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4644-1-0x0000000000510000-0x0000000000522000-memory.dmp	family_xenorat
behavioral2/files/0x000b000000023b93-6.dat	family_xenorat

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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	Client-build.exe

Executes dropped EXE 1 IoCs

pid	Process
1904	Client-build.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	Client-build.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Client-build.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
4448	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4644 wrote to memory of 1904	4644	Client-build.exe	84
PID 4644 wrote to memory of 1904	4644	Client-build.exe	84
PID 4644 wrote to memory of 1904	4644	Client-build.exe	84
PID 1904 wrote to memory of 4448	1904	Client-build.exe	86
PID 1904 wrote to memory of 4448	1904	Client-build.exe	86
PID 1904 wrote to memory of 4448	1904	Client-build.exe	86

C:\Users\Admin\AppData\Local\Temp\Client-build.exe
"C:\Users\Admin\AppData\Local\Temp\Client-build.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4644
- C:\Users\Admin\AppData\Roaming\XenoManager\Client-build.exe
  "C:\Users\Admin\AppData\Roaming\XenoManager\Client-build.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1904
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /Create /TN "WindowsSys64" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC6CA.tmp" /F
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4448

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

Query Registry

1

T1012

System Information Discovery

2

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\Client-build.exe.log

Filesize
226B

MD5
916851e072fbabc4796d8916c5131092

SHA1
d48a602229a690c512d5fdaf4c8d77547a88e7a2

SHA256
7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

SHA512
07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC6CA.tmp

Filesize
1KB

MD5
4e84065ba9714547e9524fc0cc9ea0bc

SHA1
5d559eda01716ae6b16406d6b29e6482d998d06d

SHA256
6da0fcb0257f15e2ed3947ceddb801a0622c40ce59cc47624d0e5ff2a5fc7d70

SHA512
e3397c846831bb66f847f0199d442413d9fb9a4146d34f5a11d04ebd19665c0ce00183d326bbbd24de4044c6124d5f48ae9fce524ff232d607299e0ca902aee6

Download Submit
C:\Users\Admin\AppData\Roaming\XenoManager\Client-build.exe

Filesize
45KB

MD5
304d0e77da53af75ea9b70012a78348d

SHA1
2abfcf36150e5b19e90a2df133d5d5ccdc986b7b

SHA256
e1b5a90f068ee75d794e62acb4386e49a2e48b37d58de79801b437218dc78765

SHA512
0782a2840a73ae9459ba20e7ac9bd516efa55e65c2453b6d7bc7f68b39a63012d762c678e48c2fcaeb6418b31b6d2652fa7c4f33bd6ca0e53dbc018040fff054

Download Submit
memory/1904-15-0x0000000075230000-0x00000000759E0000-memory.dmp

Filesize
7.7MB

Download
memory/1904-18-0x0000000075230000-0x00000000759E0000-memory.dmp

Filesize
7.7MB

Download
memory/1904-19-0x0000000075230000-0x00000000759E0000-memory.dmp

Filesize
7.7MB

Download
memory/4644-0-0x000000007523E000-0x000000007523F000-memory.dmp

Filesize
4KB

Download
memory/4644-1-0x0000000000510000-0x0000000000522000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads