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/2252-0-0x0000000000FE0000-0x0000000000FF2000-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-1-5-21-3808065738-1666277613-1125846146-1000\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

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

System Information Discovery
T1082

flow	ioc
7	ip-api.com

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeRevert_Proxy2.exe

pid	process
3800	powershell.exe
3800	powershell.exe
2200	powershell.exe
2200	powershell.exe
4480	powershell.exe
4480	powershell.exe
1136	powershell.exe
1136	powershell.exe
2252	Revert_Proxy2.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

Revert_Proxy2.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2252	Revert_Proxy2.exe
Token: SeDebugPrivilege	3800	powershell.exe
Token: SeDebugPrivilege	2200	powershell.exe
Token: SeDebugPrivilege	4480	powershell.exe
Token: SeDebugPrivilege	1136	powershell.exe
Token: SeDebugPrivilege	2252	Revert_Proxy2.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Revert_Proxy2.exe

pid process

2252 Revert_Proxy2.exe

pid	process
2252	Revert_Proxy2.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

Revert_Proxy2.exe

description	pid	process	target process
PID 2252 wrote to memory of 3800	2252	Revert_Proxy2.exe	powershell.exe
PID 2252 wrote to memory of 3800	2252	Revert_Proxy2.exe	powershell.exe
PID 2252 wrote to memory of 2200	2252	Revert_Proxy2.exe	powershell.exe
PID 2252 wrote to memory of 2200	2252	Revert_Proxy2.exe	powershell.exe
PID 2252 wrote to memory of 4480	2252	Revert_Proxy2.exe	powershell.exe
PID 2252 wrote to memory of 4480	2252	Revert_Proxy2.exe	powershell.exe
PID 2252 wrote to memory of 1136	2252	Revert_Proxy2.exe	powershell.exe
PID 2252 wrote to memory of 1136	2252	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:2252

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:3800

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:2200

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:4480

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:1136

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 --mojo-platform-channel-handle=4120 --field-trial-handle=2280,i,4114443225282860369,4764091921472631035,262144 --variations-seed-version /prefetch:8
1⤵
PID:2292

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

Replay Monitor

Loading Replay Monitor...

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
bd5940f08d0be56e65e5f2aaf47c538e

SHA1
d7e31b87866e5e383ab5499da64aba50f03e8443

SHA256
2d2f364c75bd2897504249f42cdf1d19374f5230aad68fa9154ea3d03e3031a6

SHA512
c34d10c7e07da44a180fae9889b61f08903aa84e8ddfa80c31c272b1ef9d491b8cec6b8a4c836c3cb1583fe8f4955c6a8db872515de3a9e10eae09610c959406

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

MD5
63aec5618613b4be6bd15b82345a971e

SHA1
cf3df18b2ed2b082a513dd53e55afb720cefe40e

SHA256
f67a667039290434cad954285ef9a93ab76b848158bb7fd1f698bd76b5bdd721

SHA512
a6c3b084ae6b41b2c3a9acb90a6f52a5acaff3bd94927389aa6698d1f2713e494b2e8f190cbbc963d56d8d30d5644df0e5c616c1f081d19275e0803dc576a033

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

MD5
a9451a6b9669d49bd90704dff21beb85

SHA1
5f93d2dec01a31e04fc90c28eb1c5ca62c6fff80

SHA256
b2ff191507379930b97a212f869c3774c20b274e8fc9fcc96da5c154fb0e3056

SHA512
06634cb578f6ce8d721e6306004082073fc224b91ceea37ef870df87b12b2d5f59e7d08b20b520787a1d13f3edbbb004197bf70f180f86dd7f401a5ad289ccb5

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wfnrry22.lnq.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1136-57-0x000002A379250000-0x000002A379260000-memory.dmp

Filesize
64KB

Download
memory/1136-58-0x000002A379250000-0x000002A379260000-memory.dmp

Filesize
64KB

Download
memory/1136-56-0x00007FFD3FDC0000-0x00007FFD40881000-memory.dmp

Filesize
10.8MB

Download
memory/1136-69-0x000002A379250000-0x000002A379260000-memory.dmp

Filesize
64KB

Download
memory/1136-70-0x000002A379250000-0x000002A379260000-memory.dmp

Filesize
64KB

Download
memory/1136-72-0x00007FFD3FDC0000-0x00007FFD40881000-memory.dmp

Filesize
10.8MB

Download
memory/2200-25-0x000001C5373C0000-0x000001C5373D0000-memory.dmp

Filesize
64KB

Download
memory/2200-39-0x00007FFD3FDC0000-0x00007FFD40881000-memory.dmp

Filesize
10.8MB

Download
memory/2200-37-0x000001C5373C0000-0x000001C5373D0000-memory.dmp

Filesize
64KB

Download
memory/2200-24-0x00007FFD3FDC0000-0x00007FFD40881000-memory.dmp

Filesize
10.8MB

Download
memory/2252-16-0x00007FFD3FDC0000-0x00007FFD40881000-memory.dmp

Filesize
10.8MB

Download
memory/2252-36-0x000000001BCE0000-0x000000001BCF0000-memory.dmp

Filesize
64KB

Download
memory/2252-1-0x00007FFD3FDC0000-0x00007FFD40881000-memory.dmp

Filesize
10.8MB

Download
memory/2252-17-0x000000001C1F0000-0x000000001C2F2000-memory.dmp

Filesize
1.0MB

Download
memory/2252-2-0x000000001BCE0000-0x000000001BCF0000-memory.dmp

Filesize
64KB

Download
memory/2252-0-0x0000000000FE0000-0x0000000000FF2000-memory.dmp

Filesize
72KB

Download
memory/3800-4-0x00000233F3360000-0x00000233F3370000-memory.dmp

Filesize
64KB

Download
memory/3800-19-0x00000233F3360000-0x00000233F3370000-memory.dmp

Filesize
64KB

Download
memory/3800-18-0x00000233F3360000-0x00000233F3370000-memory.dmp

Filesize
64KB

Download
memory/3800-22-0x00007FFD3FDC0000-0x00007FFD40881000-memory.dmp

Filesize
10.8MB

Download
memory/3800-3-0x00007FFD3FDC0000-0x00007FFD40881000-memory.dmp

Filesize
10.8MB

Download
memory/3800-5-0x00000233F3360000-0x00000233F3370000-memory.dmp

Filesize
64KB

Download
memory/3800-12-0x00000233F2EB0000-0x00000233F2ED2000-memory.dmp

Filesize
136KB

Download
memory/4480-40-0x00007FFD3FDC0000-0x00007FFD40881000-memory.dmp

Filesize
10.8MB

Download
memory/4480-55-0x00007FFD3FDC0000-0x00007FFD40881000-memory.dmp

Filesize
10.8MB

Download
memory/4480-53-0x000001BF246C0000-0x000001BF246D0000-memory.dmp

Filesize
64KB

Download
memory/4480-52-0x000001BF246C0000-0x000001BF246D0000-memory.dmp

Filesize
64KB

Download
memory/4480-41-0x000001BF246C0000-0x000001BF246D0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads