xenorat | dc49a2770d20bbc6da5b94d9f36ee79a63769c0e231b223e64dc2999ceb51c01

General

Target

SolaraBootstrapper.exe
Size

45KB
MD5

1fa704059ed0497d9532b6312249475a
SHA1

1bee85f227d135158fe623f40380b22770f57c25
SHA256

dc49a2770d20bbc6da5b94d9f36ee79a63769c0e231b223e64dc2999ceb51c01
SHA512

60ee0c00a710711ca4e69739f5c468a01ef21f27fb1b8dcf8166215827f5b447aaf684dba316167b8b4d6921de92cf05ddba30000c009970bf45b8bc13b8201b
SSDEEP

768:ZdhO/poiiUcjlJInI2gH9Xqk5nWEZ5SbTDaPuI7CPW5I:Xw+jjgnILH9XqcnW85SbT6uIA

Score

10^/10

xenorat discovery rat trojan

Malware Config

Extracted

Family

xenorat

C2

49.194.29.240

Mutex

Xeno_rat_nd8912d

Attributes

delay
100
install_path
appdata
port
4444
startup_name
MSC_Services

Signatures

Detect XenoRat Payload 2 IoCs

resource	yara_rule
behavioral2/memory/3292-1-0x0000000000C40000-0x0000000000C52000-memory.dmp	family_xenorat
behavioral2/files/0x0008000000023cd1-6.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	SolaraBootstrapper.exe

Executes dropped EXE 1 IoCs

pid	Process
4864	SolaraBootstrapper.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	SolaraBootstrapper.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SolaraBootstrapper.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
224	schtasks.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3292 wrote to memory of 4864	3292	SolaraBootstrapper.exe	85
PID 3292 wrote to memory of 4864	3292	SolaraBootstrapper.exe	85
PID 3292 wrote to memory of 4864	3292	SolaraBootstrapper.exe	85
PID 4864 wrote to memory of 224	4864	SolaraBootstrapper.exe	86
PID 4864 wrote to memory of 224	4864	SolaraBootstrapper.exe	86
PID 4864 wrote to memory of 224	4864	SolaraBootstrapper.exe	86

C:\Users\Admin\AppData\Local\Temp\SolaraBootstrapper.exe
"C:\Users\Admin\AppData\Local\Temp\SolaraBootstrapper.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3292
- C:\Users\Admin\AppData\Roaming\XenoManager\SolaraBootstrapper.exe
  "C:\Users\Admin\AppData\Roaming\XenoManager\SolaraBootstrapper.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4864
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /Create /TN "MSC_Services" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD86E.tmp" /F
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:224

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\SolaraBootstrapper.exe.log

Filesize
226B

MD5
916851e072fbabc4796d8916c5131092

SHA1
d48a602229a690c512d5fdaf4c8d77547a88e7a2

SHA256
7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

SHA512
07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD86E.tmp

Filesize
1KB

MD5
261886e90591dfeb42a5a786fab65f75

SHA1
d09f153ec7a789a2d01a13e01b5159ea55201cab

SHA256
26a2f50ac504b6161006cbe000528c22e7877e0a7680e0f8db4ac4e863a30a5c

SHA512
89ca4e4dc60247f01a95f7ceeaf352ffaebb1942c65f0440848febcf9593d75df4a2f5e43cc38dd4331fd2cdf319ff3f5cb3b735ae531534810c275eb293d972

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

Filesize
45KB

MD5
1fa704059ed0497d9532b6312249475a

SHA1
1bee85f227d135158fe623f40380b22770f57c25

SHA256
dc49a2770d20bbc6da5b94d9f36ee79a63769c0e231b223e64dc2999ceb51c01

SHA512
60ee0c00a710711ca4e69739f5c468a01ef21f27fb1b8dcf8166215827f5b447aaf684dba316167b8b4d6921de92cf05ddba30000c009970bf45b8bc13b8201b

Download Submit
memory/3292-0-0x0000000074CAE000-0x0000000074CAF000-memory.dmp

Filesize
4KB

Download
memory/3292-1-0x0000000000C40000-0x0000000000C52000-memory.dmp

Filesize
72KB

Download
memory/4864-15-0x0000000074CA0000-0x0000000075450000-memory.dmp

Filesize
7.7MB

Download
memory/4864-18-0x0000000074CA0000-0x0000000075450000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads