xworm | 740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759

General

Target

740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe
Size

315KB
MD5

754a0ca3356a8f76909cd9c5c41234d5
SHA1

c3d9d52316b071f0db5ca9cd6999bfc06141795b
SHA256

740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759
SHA512

d1fdc37b367dd2dba4cb75021299c12c22064b40d48ba6250568727b565e73c7bbe03691bb0b288dc0b588679d6d9408bf7ff7bb60a69b26e41cf69c4c78fbe5
SSDEEP

6144:K3B4ZXBhCirEL5BH46Zk16P9R8G1jqJ6TVKSK:K3BghvrELPH46ZAKjoQES

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

brightle.ddns.net:7000

Mutex

jaSa0S2QQOuGarf8

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/880-9-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

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-1-5-21-2344688013-2965468717-2034126-1000\Control Panel\International\Geo\Nation	740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe

Executes dropped EXE 1 IoCs

pid	Process
2148	XClient.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2344688013-2965468717-2034126-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Vbgxbqr = "C:\\Users\\Admin\\AppData\\Roaming\\Vbgxbqr.exe"	740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4080 set thread context of 880	4080	740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe	93

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
3028	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4080	740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe
Token: SeDebugPrivilege	880	740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4080 wrote to memory of 880	4080	740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe	93
PID 4080 wrote to memory of 880	4080	740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe	93
PID 4080 wrote to memory of 880	4080	740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe	93
PID 4080 wrote to memory of 880	4080	740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe	93
PID 4080 wrote to memory of 880	4080	740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe	93
PID 4080 wrote to memory of 880	4080	740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe	93
PID 4080 wrote to memory of 880	4080	740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe	93
PID 4080 wrote to memory of 880	4080	740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe	93
PID 880 wrote to memory of 3028	880	740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe	97
PID 880 wrote to memory of 3028	880	740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe	97
PID 880 wrote to memory of 3028	880	740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe	97

C:\Users\Admin\AppData\Local\Temp\740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe
"C:\Users\Admin\AppData\Local\Temp\740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4080
- C:\Users\Admin\AppData\Local\Temp\740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe
  C:\Users\Admin\AppData\Local\Temp\740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:880
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
    3⤵
    - Creates scheduled task(s)
    PID:3028

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
PID:2148

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759(1).exe.log

Filesize
1KB

MD5
489c7565f9b029ba9fadff774073cc98

SHA1
56c05089b33ee7e7dfa9e6a2d098164efd8e1150

SHA256
10bf6242da02dad8b2e1208b9dab9a7303cf986320e05e5ef20b99c9b71326d4

SHA512
ddea09c011a8d4f85905842c2f34c98add0110a0b6b3b2709718c3614a2c42dec5f4f5d5b9442cfd3c6c23e9a90c8c0b25c14c3dbd42faea9cc8dd232cace1ac

Download Submit
C:\Users\Admin\AppData\Roaming\XClient.exe

Filesize
315KB

MD5
754a0ca3356a8f76909cd9c5c41234d5

SHA1
c3d9d52316b071f0db5ca9cd6999bfc06141795b

SHA256
740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759

SHA512
d1fdc37b367dd2dba4cb75021299c12c22064b40d48ba6250568727b565e73c7bbe03691bb0b288dc0b588679d6d9408bf7ff7bb60a69b26e41cf69c4c78fbe5

Download Submit
C:\Users\Admin\AppData\Roaming\XClient.exe

Filesize
315KB

MD5
754a0ca3356a8f76909cd9c5c41234d5

SHA1
c3d9d52316b071f0db5ca9cd6999bfc06141795b

SHA256
740253f7075ea5e09021a78ff868d9c90931210aa12e2da91b60f1ea7380f759

SHA512
d1fdc37b367dd2dba4cb75021299c12c22064b40d48ba6250568727b565e73c7bbe03691bb0b288dc0b588679d6d9408bf7ff7bb60a69b26e41cf69c4c78fbe5

Download Submit
memory/880-14-0x0000000004CB0000-0x0000000004D4C000-memory.dmp

Filesize
624KB

Download
memory/880-20-0x0000000006560000-0x00000000065F2000-memory.dmp

Filesize
584KB

Download
memory/880-19-0x0000000004EA0000-0x0000000004EB0000-memory.dmp

Filesize
64KB

Download
memory/880-18-0x0000000005A20000-0x0000000005A86000-memory.dmp

Filesize
408KB

Download
memory/880-17-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/880-9-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/880-16-0x0000000004EA0000-0x0000000004EB0000-memory.dmp

Filesize
64KB

Download
memory/880-12-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/2148-23-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/4080-5-0x0000000006D00000-0x0000000006D30000-memory.dmp

Filesize
192KB

Download
memory/4080-13-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/4080-7-0x0000000007470000-0x0000000007A14000-memory.dmp

Filesize
5.6MB

Download
memory/4080-6-0x0000000006D30000-0x0000000006D7C000-memory.dmp

Filesize
304KB

Download
memory/4080-0-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/4080-4-0x0000000006BB0000-0x0000000006BF0000-memory.dmp

Filesize
256KB

Download
memory/4080-3-0x00000000056D0000-0x00000000056DA000-memory.dmp

Filesize
40KB

Download
memory/4080-2-0x0000000005860000-0x0000000005870000-memory.dmp

Filesize
64KB

Download
memory/4080-1-0x0000000000D80000-0x0000000000DD6000-memory.dmp

Filesize
344KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads