xworm | 2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449

General

Target

2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe
Size

40KB
MD5

36a1ae0555b5c56da0d72fc78864f11e
SHA1

516159937190a889e2cfa1f4b3a2d4a0a772f82f
SHA256

2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449
SHA512

3313c7303e745de06a0cc0b1093f251f82bffd88fea7d37403449924a0d7c8a844d9d73ace749022b60cf3932c3da121c3a6836f62347942d622d5a3af3f6cea
SSDEEP

768:INfPMSk3K/EzTb/0X8WuFZ4ZJF5PC9O9568OMhu3/O2:of05a/CTjS89wFc9U568OMsF

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

156.225.129.219:1445

Mutex

LkRlKJxmQjSvDYPt

Attributes

Install_directory
%Userprofile%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4920-1-0x0000000000380000-0x0000000000390000-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

pid	Process
2568	powershell.exe
3776	powershell.exe
2864	powershell.exe
1348	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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\csrss.lnk	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\csrss.lnk	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.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.

flow	ioc
23	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

pid	Process
2568	powershell.exe
2568	powershell.exe
3776	powershell.exe
3776	powershell.exe
2864	powershell.exe
2864	powershell.exe
1348	powershell.exe
1348	powershell.exe
4920	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4920	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe
Token: SeDebugPrivilege	2568	powershell.exe
Token: SeDebugPrivilege	3776	powershell.exe
Token: SeDebugPrivilege	2864	powershell.exe
Token: SeDebugPrivilege	1348	powershell.exe
Token: SeDebugPrivilege	4920	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4920	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4920 wrote to memory of 2568	4920	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	89
PID 4920 wrote to memory of 2568	4920	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	89
PID 4920 wrote to memory of 3776	4920	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	93
PID 4920 wrote to memory of 3776	4920	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	93
PID 4920 wrote to memory of 2864	4920	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	96
PID 4920 wrote to memory of 2864	4920	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	96
PID 4920 wrote to memory of 1348	4920	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	98
PID 4920 wrote to memory of 1348	4920	2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe	98

C:\Users\Admin\AppData\Local\Temp\2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe
"C:\Users\Admin\AppData\Local\Temp\2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.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:4920
- 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\2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2568
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '2862431a58c6d05311734d24fdd812e19bf01c0cdc50fb549347e461713a3449.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3776
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\csrss'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2864
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'csrss'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1348

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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
77d622bb1a5b250869a3238b9bc1402b

SHA1
d47f4003c2554b9dfc4c16f22460b331886b191b

SHA256
f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

SHA512
d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

Filesize
944B

MD5
4bc6f0dc6a9cede40d451decb7fa43b2

SHA1
2f06132c91ede195a1c91b23024bcef0cdf3b41d

SHA256
b5e24e192d3f4f790d8004b051169c3935660252ca603bb9f4216c4b9e0db1ff

SHA512
9fae34da5939fc4df298d0d3448544d3a61862d30198a47da9cd4c099514a7460b20fe09ca3fc041f9631bd03519d804476f34590ba32e5cd65969dfad00c1e0

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

Filesize
944B

MD5
b4b6d4cc52b5a3a71149b1f33d94d5de

SHA1
97d3dbdd24919eab70e3b14c68797cefc07e90dd

SHA256
da8c02ce00d5b1e6d4c3667465c7bbc14d7cd5227eb634f3d9690afd488267fe

SHA512
fc894f03709b83df7d2fca2779e1e60549078b67bcdbff0b61c8e5a802982210ae971309c1f92577573299288963ab5c95c6b38cbaedf53dc6062812c57a97af

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1fpk3k43.mfw.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2568-3-0x00007FFED23B0000-0x00007FFED2E71000-memory.dmp

Filesize
10.8MB

Download
memory/2568-6-0x00007FFED23B0000-0x00007FFED2E71000-memory.dmp

Filesize
10.8MB

Download
memory/2568-5-0x0000020ABE470000-0x0000020ABE492000-memory.dmp

Filesize
136KB

Download
memory/2568-18-0x00007FFED23B0000-0x00007FFED2E71000-memory.dmp

Filesize
10.8MB

Download
memory/2568-4-0x00007FFED23B0000-0x00007FFED2E71000-memory.dmp

Filesize
10.8MB

Download
memory/4920-0-0x00007FFED23B3000-0x00007FFED23B5000-memory.dmp

Filesize
8KB

Download
memory/4920-2-0x00007FFED23B0000-0x00007FFED2E71000-memory.dmp

Filesize
10.8MB

Download
memory/4920-1-0x0000000000380000-0x0000000000390000-memory.dmp

Filesize
64KB

Download
memory/4920-56-0x00007FFED23B0000-0x00007FFED2E71000-memory.dmp

Filesize
10.8MB

Download

Analysis

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