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
behavioral2/memory/1300-0-0x0000000000D40000-0x0000000000D52000-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

Processes:

Revert_Proxy2.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1132431369-515282257-1998160155-1000\Control Panel\International\Geo\Nation	Revert_Proxy2.exe

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

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

System Information Discovery
T1082

flow	ioc
8	ip-api.com

Suspicious behavior: EnumeratesProcesses 11 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeRevert_Proxy2.exe

pid	process
1628	powershell.exe
1628	powershell.exe
4952	powershell.exe
4952	powershell.exe
2496	powershell.exe
2496	powershell.exe
2836	powershell.exe
2836	powershell.exe
2836	powershell.exe
1300	Revert_Proxy2.exe
1300	Revert_Proxy2.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

Revert_Proxy2.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	1300	Revert_Proxy2.exe
Token: SeDebugPrivilege	1628	powershell.exe
Token: SeDebugPrivilege	4952	powershell.exe
Token: SeDebugPrivilege	2496	powershell.exe
Token: SeDebugPrivilege	2836	powershell.exe
Token: SeDebugPrivilege	1300	Revert_Proxy2.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Revert_Proxy2.exe

pid process

1300 Revert_Proxy2.exe

pid	process
1300	Revert_Proxy2.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

Revert_Proxy2.exe

description	pid	process	target process
PID 1300 wrote to memory of 1628	1300	Revert_Proxy2.exe	powershell.exe
PID 1300 wrote to memory of 1628	1300	Revert_Proxy2.exe	powershell.exe
PID 1300 wrote to memory of 4952	1300	Revert_Proxy2.exe	powershell.exe
PID 1300 wrote to memory of 4952	1300	Revert_Proxy2.exe	powershell.exe
PID 1300 wrote to memory of 2496	1300	Revert_Proxy2.exe	powershell.exe
PID 1300 wrote to memory of 2496	1300	Revert_Proxy2.exe	powershell.exe
PID 1300 wrote to memory of 2836	1300	Revert_Proxy2.exe	powershell.exe
PID 1300 wrote to memory of 2836	1300	Revert_Proxy2.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\Revert_Proxy2.exe
"C:\Users\Admin\AppData\Local\Temp\Revert_Proxy2.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1300

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:1628

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:4952

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:2496

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:2836

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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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
993af531f0b57e8128ec273731c3a8e2

SHA1
a42ea55876f4f390837dd2c95fb7ff2344b6e9e1

SHA256
fff934d70d813381536d272c5b8ac6ad70acd054267b13592da767c9bd1dda62

SHA512
bdf5970ff2ee314dc297fce5c0f44765e77acbf269cd9ad9e7448a391d5f80d66a0c5426f99bc3480851e8763413aa180b3b3b6b22ef0e86a365450cb8c334e4

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

MD5
eb1ad317bd25b55b2bbdce8a28a74a94

SHA1
98a3978be4d10d62e7411946474579ee5bdc5ea6

SHA256
9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98

SHA512
d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_oo5gsnef.yqz.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1300-1-0x00007FFDC12A0000-0x00007FFDC1D61000-memory.dmp

Filesize
10.8MB

Download
memory/1300-2-0x000000001BAF0000-0x000000001BB00000-memory.dmp

Filesize
64KB

Download
memory/1300-70-0x000000001BAF0000-0x000000001BB00000-memory.dmp

Filesize
64KB

Download
memory/1300-69-0x00007FFDC12A0000-0x00007FFDC1D61000-memory.dmp

Filesize
10.8MB

Download
memory/1300-0-0x0000000000D40000-0x0000000000D52000-memory.dmp

Filesize
72KB

Download
memory/1628-11-0x000001D55AC00000-0x000001D55AC22000-memory.dmp

Filesize
136KB

Download
memory/1628-18-0x00007FFDC12A0000-0x00007FFDC1D61000-memory.dmp

Filesize
10.8MB

Download
memory/1628-3-0x00007FFDC12A0000-0x00007FFDC1D61000-memory.dmp

Filesize
10.8MB

Download
memory/1628-5-0x000001D573210000-0x000001D573220000-memory.dmp

Filesize
64KB

Download
memory/1628-4-0x000001D573210000-0x000001D573220000-memory.dmp

Filesize
64KB

Download
memory/2496-49-0x00007FFDC12A0000-0x00007FFDC1D61000-memory.dmp

Filesize
10.8MB

Download
memory/2496-42-0x000001A02F470000-0x000001A02F480000-memory.dmp

Filesize
64KB

Download
memory/2496-41-0x000001A02F470000-0x000001A02F480000-memory.dmp

Filesize
64KB

Download
memory/2496-40-0x00007FFDC12A0000-0x00007FFDC1D61000-memory.dmp

Filesize
10.8MB

Download
memory/2836-59-0x00007FFDC12A0000-0x00007FFDC1D61000-memory.dmp

Filesize
10.8MB

Download
memory/2836-61-0x000002B430470000-0x000002B430480000-memory.dmp

Filesize
64KB

Download
memory/2836-60-0x000002B430470000-0x000002B430480000-memory.dmp

Filesize
64KB

Download
memory/2836-64-0x00007FFDC12A0000-0x00007FFDC1D61000-memory.dmp

Filesize
10.8MB

Download
memory/4952-30-0x00007FFDC12A0000-0x00007FFDC1D61000-memory.dmp

Filesize
10.8MB

Download
memory/4952-34-0x00007FFDC12A0000-0x00007FFDC1D61000-memory.dmp

Filesize
10.8MB

Download
memory/4952-32-0x0000020836DA0000-0x0000020836DB0000-memory.dmp

Filesize
64KB

Download
memory/4952-31-0x0000020836DA0000-0x0000020836DB0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads