xenorat | 9df32d691dc6483d47b40e6154aeff36f0acdc009c07b4af48618c4fb6b21b9f

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

C2

196.251.87.37

Mutex

Xeno_rat_nd8912d

Attributes

delay
5000
install_path
temp
port
4782
startup_name
nothingset

Signatures

Detect XenoRat Payload 1 IoCs

resource	yara_rule
behavioral3/memory/3188-0-0x0000000000400000-0x0000000000412000-memory.dmp	family_xenorat

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

Downloads MZ/PE file 1 IoCs

flow	pid	Process
18	1528	Process not Found

Executes dropped EXE 1 IoCs

pid	Process
2996	msbuild.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3056 set thread context of 3188	3056	KQlljCB.exe	84

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	msbuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msbuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MicrosoftEdgeUpdate.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4324	MicrosoftEdgeUpdate.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 3188	3056	KQlljCB.exe	84
PID 3056 wrote to memory of 3188	3056	KQlljCB.exe	84
PID 3056 wrote to memory of 3188	3056	KQlljCB.exe	84
PID 3056 wrote to memory of 3188	3056	KQlljCB.exe	84
PID 3056 wrote to memory of 3188	3056	KQlljCB.exe	84
PID 3056 wrote to memory of 3188	3056	KQlljCB.exe	84
PID 3056 wrote to memory of 3188	3056	KQlljCB.exe	84
PID 3056 wrote to memory of 3188	3056	KQlljCB.exe	84
PID 3188 wrote to memory of 2996	3188	msbuild.exe	85
PID 3188 wrote to memory of 2996	3188	msbuild.exe	85
PID 3188 wrote to memory of 2996	3188	msbuild.exe	85

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:3056
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\msbuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3188
- - 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:2996

C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
"C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PG9lbSBwcm9kdWN0X21hbnVmYWN0dXJlcj0iIiBwcm9kdWN0X25hbWU9IiIvPjxleHAgZXRhZz0iJnF1b3Q7RSt4YkF6Nlk2c1UxMjg5YlM2cWw0VlJMYmtqZkJVR1RNSnNqckhyNDRpST0mcXVvdDsiLz48YXBwIGFwcGlkPSJ7OEE2OUQzNDUtRDU2NC00NjNjLUFGRjEtQTY5RDlFNTMwRjk2fSIgdmVyc2lvbj0iMTIzLjAuNjMxMi4xMjMiIG5leHR2ZXJzaW9uPSIiIGxhbmc9ImVuIiBicmFuZD0iR0dMUyIgY2xpZW50PSIiIGluc3RhbGxhZ2U9IjUiIGluc3RhbGxkYXRldGltZT0iMTczOTE4NzUwMCIgb29iZV9pbnN0YWxsX3RpbWU9IjEzMzgzNjU5NjY5NTQwMDAwMCI-PGV2ZW50IGV2ZW50dHlwZT0iMzEiIGV2ZW50cmVzdWx0PSIxIiBlcnJvcmNvZGU9IjAiIGV4dHJhY29kZTE9IjIxNzk4NjIiIHN5c3RlbV91cHRpbWVfdGlja3M9IjU1MDkxODA4MDYiLz48L2FwcD48L3JlcXVlc3Q-
1⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
PID:4324

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
226B

MD5
1294de804ea5400409324a82fdc7ec59

SHA1
9a39506bc6cadf99c1f2129265b610c69d1518f7

SHA256
494398ec6108c68573c366c96aae23d35e7f9bdbb440a4aab96e86fcad5871d0

SHA512
033905cc5b4d0c0ffab2138da47e3223765146fa751c9f84b199284b653a04874c32a23aae577d2e06ce6c6b34fec62331b5fc928e3baf68dc53263ecdfa10c1

Download Submit
C:\Users\Admin\AppData\Local\Temp\XenoManager\msbuild.exe

Filesize
256KB

MD5
d10a3cfcc08aae3a7234498f213cf89e

SHA1
ccae4469a3a05fcb6e7af33019ca5357e5406dda

SHA256
0da56bd07a486818b7735761001cc1d3ca5af645f369a3c206bcb6719fefff06

SHA512
90a4a68b45113360d732ccac7698c74aa550c05d9883d287b808982800fce1a24abf69cf06b0f017babd647cafd3ca10aa894c59e6dab8ba1ff34c639bdf6427

Download Submit
memory/2996-15-0x0000000000A00000-0x0000000000A40000-memory.dmp

Filesize
256KB

Download
memory/2996-16-0x00000000052C0000-0x00000000052DA000-memory.dmp

Filesize
104KB

Download
memory/2996-17-0x0000000005510000-0x000000000566A000-memory.dmp

Filesize
1.4MB

Download
memory/2996-18-0x00000000737B0000-0x0000000073F61000-memory.dmp

Filesize
7.7MB

Download
memory/2996-19-0x00000000737B0000-0x0000000073F61000-memory.dmp

Filesize
7.7MB

Download
memory/3188-0-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/3188-1-0x00000000737CE000-0x00000000737CF000-memory.dmp

Filesize
4KB

Download

Analysis

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