xenorat | 9df32d691dc6483d47b40e6154aeff36f0acdc009c07b4af48618c4fb6b21b9f

Analysis

max time kernel
16s
max time network
21s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
15-02-2025 16:14

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General

Target

KQlljCB.exe
Size

499KB
MD5

7289b991c37d058b2e69b3983f75d122
SHA1

b89acc7669c5e84c1e5e9bcf0822df8803f10e43
SHA256

9df32d691dc6483d47b40e6154aeff36f0acdc009c07b4af48618c4fb6b21b9f
SHA512

958e5ba3326d01653d5218f578c909012d4a26d0bad7a467569395a080d5531103c92cd55cf049daa491826ea371dc3cc665560dcab127b6e38c9e399359a60c
SSDEEP

12288:d7Wnj4mpB/33bxyy0vyJ2qiJSUINUpqag73a3Bkl:tyjVn/3LxavmzsINUpvg7

Score

10^/10

xenorat discovery rat trojan

Malware Config

Extracted

Family

xenorat

196.251.87.37

Mutex

Xeno_rat_nd8912d

Attributes

delay
5000
install_path
temp
port
4782
startup_name
nothingset

Signatures

Detect XenoRat Payload 5 IoCs

resource	yara_rule
behavioral1/memory/2880-5-0x0000000000400000-0x0000000000412000-memory.dmp	family_xenorat
behavioral1/memory/2880-3-0x0000000000400000-0x0000000000412000-memory.dmp	family_xenorat
behavioral1/memory/2880-2-0x0000000000400000-0x0000000000412000-memory.dmp	family_xenorat
behavioral1/memory/2880-7-0x0000000000400000-0x0000000000412000-memory.dmp	family_xenorat
behavioral1/memory/2880-9-0x0000000000400000-0x0000000000412000-memory.dmp	family_xenorat

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

Executes dropped EXE 1 IoCs

pid	Process
2132	msbuild.exe

Loads dropped DLL 1 IoCs

pid	Process
2880	msbuild.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2376 set thread context of 2880	2376	KQlljCB.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 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	msbuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msbuild.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2376 wrote to memory of 2880	2376	KQlljCB.exe	31
PID 2376 wrote to memory of 2880	2376	KQlljCB.exe	31
PID 2376 wrote to memory of 2880	2376	KQlljCB.exe	31
PID 2376 wrote to memory of 2880	2376	KQlljCB.exe	31
PID 2376 wrote to memory of 2880	2376	KQlljCB.exe	31
PID 2376 wrote to memory of 2880	2376	KQlljCB.exe	31
PID 2376 wrote to memory of 2880	2376	KQlljCB.exe	31
PID 2376 wrote to memory of 2880	2376	KQlljCB.exe	31
PID 2376 wrote to memory of 2880	2376	KQlljCB.exe	31
PID 2880 wrote to memory of 2132	2880	msbuild.exe	32
PID 2880 wrote to memory of 2132	2880	msbuild.exe	32
PID 2880 wrote to memory of 2132	2880	msbuild.exe	32
PID 2880 wrote to memory of 2132	2880	msbuild.exe	32

C:\Users\Admin\AppData\Local\Temp\KQlljCB.exe
"C:\Users\Admin\AppData\Local\Temp\KQlljCB.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2376
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2880
- - C:\Users\Admin\AppData\Local\Temp\XenoManager\msbuild.exe
    "C:\Users\Admin\AppData\Local\Temp\XenoManager\msbuild.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2132

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\XenoManager\msbuild.exe

Filesize
255KB

MD5
9af17c8393f0970ee5136bd3ffa27001

SHA1
4b285b72c1a11285a25f31f2597e090da6bbc049

SHA256
71d6a7a3fe5f8dc878cd5bdeca0e09177efb85c01e9a8a10a95262cabefaa019

SHA512
b90f7de7d5ce72dccb264c7ba609e173c529b9d99ed9a63f88632bc58b1a994bbb727365f519c73b979f8918bd6de3c39a9f0347eb3a4bccdce4b2772a6516a3

Download Submit
memory/2132-18-0x000000007331E000-0x000000007331F000-memory.dmp

Filesize
4KB

Download
memory/2132-19-0x00000000009B0000-0x00000000009F0000-memory.dmp

Filesize
256KB

Download
memory/2880-5-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2880-4-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2880-3-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2880-2-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2880-1-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2880-0-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2880-7-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2880-9-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2880-10-0x000000007435E000-0x000000007435F000-memory.dmp

Filesize
4KB

Download