xworm | a9acd48968fdffc028988d29979a781cc707b96fd1483f7825a1014c89fe9e49

General

Target

Revert_Proxy2.exe
Size

50KB
MD5

8ed10249a741529f5ce9ebbcfa50b4ab
SHA1

1135d5e4cd03ba57c681016c5c18bda35c7144fd
SHA256

a9acd48968fdffc028988d29979a781cc707b96fd1483f7825a1014c89fe9e49
SHA512

2700127217546eb248ce086857c1c0fdc6fda3db18576b65dcde7e208c5319c97b782b7459f9f88a67cd1eeea9844dd7083423f903b4c9f25fe108f072ff6409
SSDEEP

1536:Wf05a/CTjS89IFc9Uw68OMA3dS1EAd8IIR:Wf05a/CTJ9IFc9UuOMmgEA6IIR

Score

10^/10

xworm rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

85.203.4.127:1474

Mutex

eBA1hJEKi2fpwXUX

Attributes

Install_directory
%ProgramData%
install_file
VLC_Media.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2328-0-0x00000000009C0000-0x00000000009D2000-memory.dmp	family_xworm

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

Drops startup file 2 IoCs

Processes:

Revert_Proxy2.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\VLC_Media.lnk	Revert_Proxy2.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\VLC_Media.lnk	Revert_Proxy2.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

4 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 5 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeRevert_Proxy2.exe

pid process

2564 powershell.exe
2456 powershell.exe
2976 powershell.exe
2988 powershell.exe
2328 Revert_Proxy2.exe

flow	ioc
4	ip-api.com

pid	process
2564	powershell.exe
2456	powershell.exe
2976	powershell.exe
2988	powershell.exe
2328	Revert_Proxy2.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

Revert_Proxy2.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2328	Revert_Proxy2.exe
Token: SeDebugPrivilege	2564	powershell.exe
Token: SeDebugPrivilege	2456	powershell.exe
Token: SeDebugPrivilege	2976	powershell.exe
Token: SeDebugPrivilege	2988	powershell.exe
Token: SeDebugPrivilege	2328	Revert_Proxy2.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Revert_Proxy2.exe

pid process

2328 Revert_Proxy2.exe

pid	process
2328	Revert_Proxy2.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Revert_Proxy2.exe

description	pid	process	target process
PID 2328 wrote to memory of 2564	2328	Revert_Proxy2.exe	powershell.exe
PID 2328 wrote to memory of 2564	2328	Revert_Proxy2.exe	powershell.exe
PID 2328 wrote to memory of 2564	2328	Revert_Proxy2.exe	powershell.exe
PID 2328 wrote to memory of 2456	2328	Revert_Proxy2.exe	powershell.exe
PID 2328 wrote to memory of 2456	2328	Revert_Proxy2.exe	powershell.exe
PID 2328 wrote to memory of 2456	2328	Revert_Proxy2.exe	powershell.exe
PID 2328 wrote to memory of 2976	2328	Revert_Proxy2.exe	powershell.exe
PID 2328 wrote to memory of 2976	2328	Revert_Proxy2.exe	powershell.exe
PID 2328 wrote to memory of 2976	2328	Revert_Proxy2.exe	powershell.exe
PID 2328 wrote to memory of 2988	2328	Revert_Proxy2.exe	powershell.exe
PID 2328 wrote to memory of 2988	2328	Revert_Proxy2.exe	powershell.exe
PID 2328 wrote to memory of 2988	2328	Revert_Proxy2.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\Revert_Proxy2.exe
"C:\Users\Admin\AppData\Local\Temp\Revert_Proxy2.exe"
1⤵
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2328

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\Revert_Proxy2.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2564

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Revert_Proxy2.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2456

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\VLC_Media.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2976

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'VLC_Media.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2988

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
Filesize
7KB

MD5
61fc90bcf10ac24b7bf7e01b3399d38a

SHA1
a531818a709a8b05a980a7d74e054d347b5c5cb8

SHA256
0aae9a5d4fa3e0f0df1260d5d76df261ee1ca7e1d5df11b4d8d56f2d101a50e0

SHA512
327fdb33fc3b95fb015a811fe50dc488ffd9fb3f31db0ad7c3e18a7c0b4483d36a7fe51b79d3876d793fdfc4f370f0cb801a68d2fb7bc5d04b896aea87c1c600

Download Submit
memory/2328-0-0x00000000009C0000-0x00000000009D2000-memory.dmp

Filesize
72KB

Download
memory/2328-2-0x000000001AFF0000-0x000000001B070000-memory.dmp

Filesize
512KB

Download
memory/2328-59-0x000000001AFF0000-0x000000001B070000-memory.dmp

Filesize
512KB

Download
memory/2328-47-0x000007FEF5710000-0x000007FEF60FC000-memory.dmp

Filesize
9.9MB

Download
memory/2328-1-0x000007FEF5710000-0x000007FEF60FC000-memory.dmp

Filesize
9.9MB

Download
memory/2456-26-0x00000000027E0000-0x0000000002860000-memory.dmp

Filesize
512KB

Download
memory/2456-27-0x00000000027E0000-0x0000000002860000-memory.dmp

Filesize
512KB

Download
memory/2456-28-0x00000000027E0000-0x0000000002860000-memory.dmp

Filesize
512KB

Download
memory/2456-24-0x00000000027E0000-0x0000000002860000-memory.dmp

Filesize
512KB

Download
memory/2456-25-0x000007FEED980000-0x000007FEEE31D000-memory.dmp

Filesize
9.6MB

Download
memory/2456-22-0x000007FEED980000-0x000007FEEE31D000-memory.dmp

Filesize
9.6MB

Download
memory/2456-29-0x000007FEED980000-0x000007FEEE31D000-memory.dmp

Filesize
9.6MB

Download
memory/2456-21-0x000000001B490000-0x000000001B772000-memory.dmp

Filesize
2.9MB

Download
memory/2456-23-0x0000000002970000-0x0000000002978000-memory.dmp

Filesize
32KB

Download
memory/2564-13-0x0000000002BA0000-0x0000000002C20000-memory.dmp

Filesize
512KB

Download
memory/2564-15-0x000007FEEE320000-0x000007FEEECBD000-memory.dmp

Filesize
9.6MB

Download
memory/2564-14-0x0000000002BA0000-0x0000000002C20000-memory.dmp

Filesize
512KB

Download
memory/2564-12-0x0000000002BA0000-0x0000000002C20000-memory.dmp

Filesize
512KB

Download
memory/2564-11-0x000007FEEE320000-0x000007FEEECBD000-memory.dmp

Filesize
9.6MB

Download
memory/2564-10-0x0000000002BA0000-0x0000000002C20000-memory.dmp

Filesize
512KB

Download
memory/2564-8-0x0000000002690000-0x0000000002698000-memory.dmp

Filesize
32KB

Download
memory/2564-7-0x000000001B750000-0x000000001BA32000-memory.dmp

Filesize
2.9MB

Download
memory/2564-9-0x000007FEEE320000-0x000007FEEECBD000-memory.dmp

Filesize
9.6MB

Download
memory/2976-40-0x0000000002AB0000-0x0000000002B30000-memory.dmp

Filesize
512KB

Download
memory/2976-38-0x0000000002AB0000-0x0000000002B30000-memory.dmp

Filesize
512KB

Download
memory/2976-37-0x000007FEEE320000-0x000007FEEECBD000-memory.dmp

Filesize
9.6MB

Download
memory/2976-39-0x0000000002AB0000-0x0000000002B30000-memory.dmp

Filesize
512KB

Download
memory/2976-41-0x000007FEEE320000-0x000007FEEECBD000-memory.dmp

Filesize
9.6MB

Download
memory/2976-36-0x0000000002AB0000-0x0000000002B30000-memory.dmp

Filesize
512KB

Download
memory/2976-35-0x000007FEEE320000-0x000007FEEECBD000-memory.dmp

Filesize
9.6MB

Download
memory/2988-49-0x0000000002DE0000-0x0000000002E60000-memory.dmp

Filesize
512KB

Download
memory/2988-50-0x000007FEED980000-0x000007FEEE31D000-memory.dmp

Filesize
9.6MB

Download
memory/2988-51-0x0000000002DE0000-0x0000000002E60000-memory.dmp

Filesize
512KB

Download
memory/2988-53-0x0000000002DE0000-0x0000000002E60000-memory.dmp

Filesize
512KB

Download
memory/2988-52-0x0000000002DE0000-0x0000000002E60000-memory.dmp

Filesize
512KB

Download
memory/2988-54-0x000007FEED980000-0x000007FEEE31D000-memory.dmp

Filesize
9.6MB

Download
memory/2988-48-0x000007FEED980000-0x000007FEEE31D000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads