xworm | 4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
22/05/2024, 01:37

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General

Target

4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe
Size

560KB
MD5

4a5f7263d5e978024e4d3c7abed82307
SHA1

0a8f9bb8e9058beb4bd67ea08b8ef82bc90fcd8c
SHA256

4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf
SHA512

d843fe704beeb3b61916c789626bc908eed44455a34a86a65994db47c759311aef05c4f2d1530f2f073e99e6bdf3dc2b15944772fee7d161b492e70ba8a09c22
SSDEEP

12288:IzxKn6yWn7fcpVZlu/6uHqa9XnWsh9P5u7JwdprNLUgNYGutA:rn698VVYFlRu7J6ZUgNiA

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

104.250.180.178:7061

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3064-11-0x0000000000400000-0x0000000000414000-memory.dmp	family_xworm

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

Detects Windows executables referencing non-Windows User-Agents 1 IoCs

resource	yara_rule
behavioral2/memory/3064-11-0x0000000000400000-0x0000000000414000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

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
3620	powershell.exe
3728	powershell.exe
4300	powershell.exe
4560	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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2316 set thread context of 3064	2316	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	91

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
4560	powershell.exe
4560	powershell.exe
3620	powershell.exe
3620	powershell.exe
3728	powershell.exe
3728	powershell.exe
4300	powershell.exe
4300	powershell.exe
3064	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3064	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe
Token: SeDebugPrivilege	4560	powershell.exe
Token: SeDebugPrivilege	3620	powershell.exe
Token: SeDebugPrivilege	3728	powershell.exe
Token: SeDebugPrivilege	4300	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3064	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 3064	2316	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	91
PID 2316 wrote to memory of 3064	2316	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	91
PID 2316 wrote to memory of 3064	2316	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	91
PID 2316 wrote to memory of 3064	2316	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	91
PID 2316 wrote to memory of 3064	2316	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	91
PID 2316 wrote to memory of 3064	2316	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	91
PID 2316 wrote to memory of 3064	2316	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	91
PID 2316 wrote to memory of 3064	2316	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	91
PID 3064 wrote to memory of 4560	3064	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	93
PID 3064 wrote to memory of 4560	3064	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	93
PID 3064 wrote to memory of 4560	3064	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	93
PID 3064 wrote to memory of 3620	3064	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	95
PID 3064 wrote to memory of 3620	3064	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	95
PID 3064 wrote to memory of 3620	3064	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	95
PID 3064 wrote to memory of 3728	3064	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	97
PID 3064 wrote to memory of 3728	3064	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	97
PID 3064 wrote to memory of 3728	3064	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	97
PID 3064 wrote to memory of 4300	3064	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	99
PID 3064 wrote to memory of 4300	3064	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	99
PID 3064 wrote to memory of 4300	3064	4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe	99

C:\Users\Admin\AppData\Local\Temp\4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe
"C:\Users\Admin\AppData\Local\Temp\4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Users\Admin\AppData\Local\Temp\4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe
  "C:\Users\Admin\AppData\Local\Temp\4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3064
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4560
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3620
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\XClient.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3728
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4300

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\4fb48e8fd54c7dba1422489d3312e5c0bde0f8e4d375103c28160403624afabf.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
18KB

MD5
781f02d34454bbfb0cd82357627fbe65

SHA1
23e173a3e99b489f177bc389c19b50320ddcef8c

SHA256
61777fe570a35d47e51d568dbc050c29fd09a8fbef9af032fcd2b2a82a8bba4c

SHA512
35ac27f0377b7f30000ec2518e395c38761d6809fd209c1ea8ff78995eb8a3f7b56e7a6dfe9d274b75eba78241363aad7a714506d396118a8238b6b9dd8b6db2

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

Filesize
18KB

MD5
61b48b33af356c10c549fb77677dd3d5

SHA1
3a901035cf0837cb07a759674438746459b87514

SHA256
37bbedfa686361c3c3b42175ee230bb89af2f3529ef9fd92845ce045bbbffa62

SHA512
93e0882dc989fd8b2c1bca308238703a41ffee261dde64c9d8befa1e5dbcabbe76149c9a92a66601bc2cfe991cd28e20d69c880ae841a7e5fd6e262ed76ddb95

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

Filesize
18KB

MD5
48d7cf87ea05cc35518d9b20fe5392e1

SHA1
6aeb1e7e1f963f3815c4975db45f5d1107b727d2

SHA256
7c92c71e7836d1b71da14c3753d7b506f7f506c051bbf1e3e37a37ff12b691a6

SHA512
ad706b793a18c5c05bbd9df6e070b6aa201c3bcf2d4df4eb8b8c53d61188d84e53f77e6294f8842128f09f925a1802f7550e9e8483bb3c97e91327546599590a

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5y2xcxog.54p.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2316-6-0x00000000056D0000-0x00000000056F2000-memory.dmp

Filesize
136KB

Download
memory/2316-4-0x00000000051C0000-0x00000000051CA000-memory.dmp

Filesize
40KB

Download
memory/2316-8-0x0000000004BC0000-0x0000000004BD0000-memory.dmp

Filesize
64KB

Download
memory/2316-9-0x00000000065B0000-0x0000000006606000-memory.dmp

Filesize
344KB

Download
memory/2316-10-0x00000000066B0000-0x000000000674C000-memory.dmp

Filesize
624KB

Download
memory/2316-7-0x00000000056F0000-0x00000000056FC000-memory.dmp

Filesize
48KB

Download
memory/2316-5-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/2316-1-0x0000000000870000-0x0000000000900000-memory.dmp

Filesize
576KB

Download
memory/2316-15-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/2316-0-0x0000000074F1E000-0x0000000074F1F000-memory.dmp

Filesize
4KB

Download
memory/2316-2-0x0000000005720000-0x0000000005CC4000-memory.dmp

Filesize
5.6MB

Download
memory/2316-3-0x0000000005210000-0x00000000052A2000-memory.dmp

Filesize
584KB

Download
memory/3064-11-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3064-129-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/3064-130-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/3064-131-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/3064-14-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/3620-72-0x0000000070530000-0x000000007057C000-memory.dmp

Filesize
304KB

Download
memory/3728-93-0x0000000070530000-0x000000007057C000-memory.dmp

Filesize
304KB

Download
memory/4300-114-0x0000000070530000-0x000000007057C000-memory.dmp

Filesize
304KB

Download
memory/4560-33-0x0000000005E20000-0x0000000006174000-memory.dmp

Filesize
3.3MB

Download
memory/4560-36-0x0000000007390000-0x00000000073C2000-memory.dmp

Filesize
200KB

Download
memory/4560-37-0x0000000070530000-0x000000007057C000-memory.dmp

Filesize
304KB

Download
memory/4560-47-0x0000000006970000-0x000000000698E000-memory.dmp

Filesize
120KB

Download
memory/4560-48-0x00000000073D0000-0x0000000007473000-memory.dmp

Filesize
652KB

Download
memory/4560-49-0x0000000007D40000-0x00000000083BA000-memory.dmp

Filesize
6.5MB

Download
memory/4560-50-0x0000000007700000-0x000000000771A000-memory.dmp

Filesize
104KB

Download
memory/4560-51-0x0000000007770000-0x000000000777A000-memory.dmp

Filesize
40KB

Download
memory/4560-52-0x0000000007980000-0x0000000007A16000-memory.dmp

Filesize
600KB

Download
memory/4560-53-0x0000000007900000-0x0000000007911000-memory.dmp

Filesize
68KB

Download
memory/4560-54-0x0000000007930000-0x000000000793E000-memory.dmp

Filesize
56KB

Download
memory/4560-55-0x0000000007940000-0x0000000007954000-memory.dmp

Filesize
80KB

Download
memory/4560-56-0x0000000007A40000-0x0000000007A5A000-memory.dmp

Filesize
104KB

Download
memory/4560-57-0x0000000007A20000-0x0000000007A28000-memory.dmp

Filesize
32KB

Download
memory/4560-60-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/4560-35-0x0000000006450000-0x000000000649C000-memory.dmp

Filesize
304KB

Download
memory/4560-34-0x00000000063C0000-0x00000000063DE000-memory.dmp

Filesize
120KB

Download
memory/4560-21-0x0000000005310000-0x0000000005332000-memory.dmp

Filesize
136KB

Download
memory/4560-22-0x0000000005430000-0x0000000005496000-memory.dmp

Filesize
408KB

Download
memory/4560-23-0x0000000005DB0000-0x0000000005E16000-memory.dmp

Filesize
408KB

Download
memory/4560-20-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/4560-19-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/4560-17-0x0000000005610000-0x0000000005C38000-memory.dmp

Filesize
6.2MB

Download
memory/4560-18-0x0000000074F10000-0x00000000756C0000-memory.dmp

Filesize
7.7MB

Download
memory/4560-16-0x0000000002AB0000-0x0000000002AE6000-memory.dmp

Filesize
216KB

Download