xworm | f20df849f7284d15b7915badc28f7afaad9e1a768279ced17db67796f2f883fd

Resubmissions

01-07-2024 16:09

240701-tl9n3ascnn 10

01-07-2024 00:42

240701-a2hqqstgjn 10

Analysis

max time kernel
52s
max time network
56s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 16:09

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General

Target

RobloxExecutor.exe
Size

316KB
MD5

f0c864fee64edd613b413ddb7c559446
SHA1

87e75a58eef9f3765a2eed498f6aca135b1ef7c4
SHA256

f20df849f7284d15b7915badc28f7afaad9e1a768279ced17db67796f2f883fd
SHA512

9c8e90d0a04740ed6e36d886bb13bb9df3b963236eaca0b2fd0db6bfce1d4052761d689d77dcf66c7c07df53295751f0ff8907a8f426ccc4391b365b282bd154
SSDEEP

3072:0n2Af+SLiJO+Y7mR9USl6yOiGB3PSQQivLXdn+mvo+vuChrZtwkYZBwOepe4PUe1:1E+yclwQKjdn+WPtYVJIoBfTVRsjbQ2p

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

allows-welfare.gl.at.ply.gg:49180

Mutex

B2qPpHuLCfcwYFiL

Attributes

Install_directory
%AppData%
install_file
System.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

Processes:

resource yara_rule

C:\Users\Admin\AppData\Local\Temp\RarSFX0\Systemdefault.exe family_xworm
behavioral3/memory/3284-11-0x0000000000C30000-0x0000000000C40000-memory.dmp family_xworm
Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid process

3736 powershell.exe
2784 powershell.exe
2892 powershell.exe
3800 powershell.exe

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\RarSFX0\Systemdefault.exe	family_xworm
behavioral3/memory/3284-11-0x0000000000C30000-0x0000000000C40000-memory.dmp	family_xworm

pid	process
3736	powershell.exe
2784	powershell.exe
2892	powershell.exe
3800	powershell.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

RobloxExecutor.exeSystemdefault.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	RobloxExecutor.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation	Systemdefault.exe

Drops startup file 2 IoCs

Processes:

Systemdefault.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.lnk	Systemdefault.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.lnk	Systemdefault.exe

Executes dropped EXE 2 IoCs

Processes:

Systemdefault.exeLOLPOOP.exe

pid process

3284 Systemdefault.exe
2392 LOLPOOP.exe
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

15 ip-api.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeSystemdefault.exe

pid process

3736 powershell.exe
3736 powershell.exe
2784 powershell.exe
2784 powershell.exe
2892 powershell.exe
2892 powershell.exe
3800 powershell.exe
3800 powershell.exe
3284 Systemdefault.exe

pid	process
3284	Systemdefault.exe
2392	LOLPOOP.exe

flow	ioc
15	ip-api.com

pid	process
3736	powershell.exe
3736	powershell.exe
2784	powershell.exe
2784	powershell.exe
2892	powershell.exe
2892	powershell.exe
3800	powershell.exe
3800	powershell.exe
3284	Systemdefault.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

Systemdefault.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	3284	Systemdefault.exe
Token: SeDebugPrivilege	3736	powershell.exe
Token: SeDebugPrivilege	2784	powershell.exe
Token: SeDebugPrivilege	2892	powershell.exe
Token: SeDebugPrivilege	3800	powershell.exe
Token: SeDebugPrivilege	3284	Systemdefault.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Systemdefault.exe

pid process

3284 Systemdefault.exe

pid	process
3284	Systemdefault.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

RobloxExecutor.execmd.exeSystemdefault.exe

description	pid	process	target process
PID 4036 wrote to memory of 2276	4036	RobloxExecutor.exe	cmd.exe
PID 4036 wrote to memory of 2276	4036	RobloxExecutor.exe	cmd.exe
PID 4036 wrote to memory of 2276	4036	RobloxExecutor.exe	cmd.exe
PID 2276 wrote to memory of 3284	2276	cmd.exe	Systemdefault.exe
PID 2276 wrote to memory of 3284	2276	cmd.exe	Systemdefault.exe
PID 2276 wrote to memory of 2392	2276	cmd.exe	LOLPOOP.exe
PID 2276 wrote to memory of 2392	2276	cmd.exe	LOLPOOP.exe
PID 2276 wrote to memory of 2392	2276	cmd.exe	LOLPOOP.exe
PID 3284 wrote to memory of 3736	3284	Systemdefault.exe	powershell.exe
PID 3284 wrote to memory of 3736	3284	Systemdefault.exe	powershell.exe
PID 3284 wrote to memory of 2784	3284	Systemdefault.exe	powershell.exe
PID 3284 wrote to memory of 2784	3284	Systemdefault.exe	powershell.exe
PID 3284 wrote to memory of 2892	3284	Systemdefault.exe	powershell.exe
PID 3284 wrote to memory of 2892	3284	Systemdefault.exe	powershell.exe
PID 3284 wrote to memory of 3800	3284	Systemdefault.exe	powershell.exe
PID 3284 wrote to memory of 3800	3284	Systemdefault.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\RobloxExecutor.exe
"C:\Users\Admin\AppData\Local\Temp\RobloxExecutor.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4036

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c start "" "Systemdefault.exe" & start "" "LOLPOOP.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:2276

C:\Users\Admin\AppData\Local\Temp\RarSFX0\Systemdefault.exe
"Systemdefault.exe"
3⤵
- Checks computer location settings
- Drops startup file
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3284

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\RarSFX0\Systemdefault.exe'
4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3736

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Systemdefault.exe'
4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2784

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\System.exe'
4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2892

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'System.exe'
4⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3800

C:\Users\Admin\AppData\Local\Temp\RarSFX0\LOLPOOP.exe
"LOLPOOP.exe"
3⤵
- Executes dropped EXE
PID:2392

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4456,i,2607710392823067546,4648797561512801463,262144 --variations-seed-version --mojo-platform-channel-handle=1304 /prefetch:8
1⤵
PID:4564

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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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
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
944B

MD5
a7cc007980e419d553568a106210549a

SHA1
c03099706b75071f36c3962fcc60a22f197711e0

SHA256
a5735921fc72189c8bf577f3911486cf031708dc8d6bc764fe3e593c0a053165

SHA512
b9aaf29403c467daef80a1ae87478afc33b78f4e1ca16189557011bb83cf9b3e29a0f85c69fa209c45201fb28baca47d31756eee07b79c6312c506e8370f7666

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
944B

MD5
34f595487e6bfd1d11c7de88ee50356a

SHA1
4caad088c15766cc0fa1f42009260e9a02f953bb

SHA256
0f9a4b52e01cb051052228a55d0515911b7ef5a8db3cf925528c746df511424d

SHA512
10976c5deaf9fac449e703e852c3b08d099f430de2d7c7b8e2525c35d63e28b890e5aab63feff9b20bca0aaf9f35a3ba411aee3fbeee9ea59f90ed25bd617a0b

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\LOLPOOP.exe
Filesize
9KB

MD5
c9bd5672882c79b5f7977fc3c37dc9b6

SHA1
90cfa0e99aacd42bd2561cdb218fd618f0ed4b9f

SHA256
c6594102d290245d0830cead7f7e3cacf79db881358f001373fcca0d625d0998

SHA512
5586496c54c7c33c3e3f1cd6c4e0117b8e34d42846f55aadf22314144e1e27691e8c7fef924386cd5ae01a958d7437ab1a0b6c709ca06f25f6deab82f6171038

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\Systemdefault.exe
Filesize
40KB

MD5
2b7216f79728eb5ff4b5553737685a99

SHA1
d7f4f41f03485eb76326c75ec2ae0fe53282ebd0

SHA256
5a40bff3109b83243b53bf7439dc5e66e29c923363c02d49fa93614c19ce36f5

SHA512
b9f4c8e9b5b46785806eb498028e85d2515d743a518c0ecfd9269e8f4cb2351da0bcd9a6bc0e74eabc33e8dd2374bee46566b188d5f4ee49ba3384ece7a54982

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jzawyxj0.gyp.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2392-13-0x0000000000D90000-0x0000000000D98000-memory.dmp

Filesize
32KB

Download
memory/2392-12-0x0000000072BBE000-0x0000000072BBF000-memory.dmp

Filesize
4KB

Download
memory/2392-17-0x0000000072BB0000-0x0000000073360000-memory.dmp

Filesize
7.7MB

Download
memory/2392-71-0x0000000072BB0000-0x0000000073360000-memory.dmp

Filesize
7.7MB

Download
memory/2392-15-0x0000000005640000-0x00000000056D2000-memory.dmp

Filesize
584KB

Download
memory/2392-70-0x0000000072BBE000-0x0000000072BBF000-memory.dmp

Filesize
4KB

Download
memory/2392-14-0x0000000005B30000-0x00000000060D4000-memory.dmp

Filesize
5.6MB

Download
memory/2392-16-0x0000000005700000-0x000000000570A000-memory.dmp

Filesize
40KB

Download
memory/3284-11-0x0000000000C30000-0x0000000000C40000-memory.dmp

Filesize
64KB

Download
memory/3284-10-0x00007FFF00A53000-0x00007FFF00A55000-memory.dmp

Filesize
8KB

Download
memory/3284-69-0x00007FFF00A53000-0x00007FFF00A55000-memory.dmp

Filesize
8KB

Download
memory/3284-18-0x000000001BA30000-0x000000001BA40000-memory.dmp

Filesize
64KB

Download
memory/3284-72-0x000000001BA30000-0x000000001BA40000-memory.dmp

Filesize
64KB

Download
memory/3736-19-0x00000279630A0000-0x00000279630C2000-memory.dmp

Filesize
136KB

Download