xworm | ac916cba0427c21dede94cb1b3bb061ea7502d865a8964918ea976948b27af48

General

Target

Excellent3.0.exe
Size

76KB
MD5

401131f795244c4e21d3e50f7612f85c
SHA1

98b156b8f67b98cd8f4640a0c17d9b85c87cf516
SHA256

ac916cba0427c21dede94cb1b3bb061ea7502d865a8964918ea976948b27af48
SHA512

5957f631d0a0c99b76fccd000de8f9d3d6084cdfc24d2cfa832045da43eda93b456ecfc2fe3a7457b761a4a698f4cd287a535da144489efc6fd85a6b531ee6e2
SSDEEP

1536:1aobhfsGh035rMe4VeC8Tl+bxPBvtzfwl6kJK6vlbYOB7p7Y+k:1aU25rMRVF8B+bDvSNkylcOB71Y+k

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

used-billion.gl.at.ply.gg:43161

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2712-1-0x0000000000BE0000-0x0000000000BFA000-memory.dmp	family_xworm

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

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4400	powershell.exe
2820	powershell.exe
3412	powershell.exe
3916	powershell.exe

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-1-5-21-100612193-3312047696-905266872-1000\Control Panel\International\Geo\Nation	Excellent3.0.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	Excellent3.0.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	Excellent3.0.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-100612193-3312047696-905266872-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	Excellent3.0.exe

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2616	timeout.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
2820	powershell.exe
2820	powershell.exe
2820	powershell.exe
3412	powershell.exe
3412	powershell.exe
3412	powershell.exe
3916	powershell.exe
3916	powershell.exe
3916	powershell.exe
4400	powershell.exe
4400	powershell.exe
4400	powershell.exe
2712	Excellent3.0.exe
2712	Excellent3.0.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2712	Excellent3.0.exe
Token: SeDebugPrivilege	2820	powershell.exe
Token: SeDebugPrivilege	3412	powershell.exe
Token: SeDebugPrivilege	3916	powershell.exe
Token: SeDebugPrivilege	4400	powershell.exe
Token: SeDebugPrivilege	2712	Excellent3.0.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2712	Excellent3.0.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2712 wrote to memory of 2820	2712	Excellent3.0.exe	97
PID 2712 wrote to memory of 2820	2712	Excellent3.0.exe	97
PID 2712 wrote to memory of 3412	2712	Excellent3.0.exe	99
PID 2712 wrote to memory of 3412	2712	Excellent3.0.exe	99
PID 2712 wrote to memory of 3916	2712	Excellent3.0.exe	101
PID 2712 wrote to memory of 3916	2712	Excellent3.0.exe	101
PID 2712 wrote to memory of 4400	2712	Excellent3.0.exe	103
PID 2712 wrote to memory of 4400	2712	Excellent3.0.exe	103
PID 2712 wrote to memory of 3524	2712	Excellent3.0.exe	107
PID 2712 wrote to memory of 3524	2712	Excellent3.0.exe	107
PID 3524 wrote to memory of 2616	3524	cmd.exe	109
PID 3524 wrote to memory of 2616	3524	cmd.exe	109

C:\Users\Admin\AppData\Local\Temp\Excellent3.0.exe
"C:\Users\Admin\AppData\Local\Temp\Excellent3.0.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2712
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Excellent3.0.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2820
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Excellent3.0.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3412
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3916
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4400
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp21DB.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3524
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2616

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
a2c8179aaa149c0b9791b73ce44c04d1

SHA1
703361b0d43ec7f669304e7c0ffbbfdeb1e484ff

SHA256
c1d30342a40a2b6e7553da30ceb85754d33820f6fbb3bbbed1ceb30d6390de4a

SHA512
2e201dd457d055baad86f68c15bcc7beb48d6dc2ffc10db7f304eb93f697e7b45991cbde857d25da2c9c60c23f3e13df8b5ed5809c1753737a23096e296cc9e3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
3072fa0040b347c3941144486bf30c6f

SHA1
e6dc84a5bd882198583653592f17af1bf8cbfc68

SHA256
da8b533f81b342503c109e46b081b5c5296fdad5481f93fe5cc648e49ca6238e

SHA512
62df0eed621fe8ec340887a03d26b125429025c14ddcdfef82cb78ce1c9c6110c1d51ff0e423754d7966b6251363bf92833970eaf67707f8dd62e1549a79536c

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_yccnv4kp.vz3.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp21DB.tmp.bat

Filesize
164B

MD5
c00f547f353c26553a1b4b85e9ba821e

SHA1
ee71af6ab68365ad14b1d513366436273eef164b

SHA256
936ed5f3860f87f1b9854c4fecbc209da3a1cc65d4534d437c897b52125ee568

SHA512
e779728194cebe603fa208b467a2341a8f37c6c9cfb9610bbd61c5e221cfb8bc24ff6f594da3fb9172091d422aad01a55723009aa09bd984e2153fe694b598f7

Download Submit
memory/2712-1-0x0000000000BE0000-0x0000000000BFA000-memory.dmp

Filesize
104KB

Download
memory/2712-68-0x00007FFF25C80000-0x00007FFF26741000-memory.dmp

Filesize
10.8MB

Download
memory/2712-60-0x000000001D6D0000-0x000000001D6DC000-memory.dmp

Filesize
48KB

Download
memory/2712-59-0x00007FFF25C80000-0x00007FFF26741000-memory.dmp

Filesize
10.8MB

Download
memory/2712-0-0x00007FFF25C83000-0x00007FFF25C85000-memory.dmp

Filesize
8KB

Download
memory/2712-58-0x00007FFF25C80000-0x00007FFF26741000-memory.dmp

Filesize
10.8MB

Download
memory/2712-2-0x00007FFF25C83000-0x00007FFF25C85000-memory.dmp

Filesize
8KB

Download
memory/2820-18-0x00007FFF25C80000-0x00007FFF26741000-memory.dmp

Filesize
10.8MB

Download
memory/2820-3-0x00000245B00B0000-0x00000245B00D2000-memory.dmp

Filesize
136KB

Download
memory/2820-19-0x00007FFF25C80000-0x00007FFF26741000-memory.dmp

Filesize
10.8MB

Download
memory/2820-13-0x00007FFF25C80000-0x00007FFF26741000-memory.dmp

Filesize
10.8MB

Download
memory/2820-15-0x00007FFF25C80000-0x00007FFF26741000-memory.dmp

Filesize
10.8MB

Download
memory/2820-14-0x00007FFF25C80000-0x00007FFF26741000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads