xworm | b4cd8446b24c4458473a8b7e9fe81feddd2c9a73d0ddf532c0f0e8bc0a90202c

Analysis

max time kernel
136s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
21-03-2023 14:47

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General

Target

7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe
Size

38KB
MD5

1077d2817de834e79983fa8bb6dde71e
SHA1

f251d74238b838ce1605b889d80327a1e47e9a40
SHA256

7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448
SHA512

3132c7690ddc33e6c8b7d9533f7b8500bfce540eeee61db706dcc4847d7dcf7634206fd8f04c437706e9412bb09c7706b016b8633c17661f322475046e5d1bba
SSDEEP

768:z5B93liEMuoOzHEgSSxCa7wFWPh9Vi67Owhk9Fxkku:z5BM+NSda0FK9Vi67Owq72

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

kids-abstract.at.ply.gg:26193

Mutex

Q0PQt1zJ8DDIXdji

Attributes

install_file
USB.exe

aes.plain

Signatures

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:

7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Control Panel\International\Geo\Nation	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

Drops startup file 2 IoCs

Processes:

7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.lnk	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.lnk	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

Executes dropped EXE 2 IoCs

Processes:

7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

pid	process
1068	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe
3236	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448 = "C:\\Users\\Admin\\AppData\\Local\\7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe"	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

828 schtasks.exe

pid	process
828	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

powershell.exepowershell.exepowershell.exe7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

pid	process
3296	powershell.exe
3296	powershell.exe
4928	powershell.exe
4928	powershell.exe
732	powershell.exe
732	powershell.exe
1588	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exepowershell.exepowershell.exepowershell.exe7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

description	pid	process
Token: SeDebugPrivilege	1588	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe
Token: SeDebugPrivilege	3296	powershell.exe
Token: SeDebugPrivilege	4928	powershell.exe
Token: SeDebugPrivilege	732	powershell.exe
Token: SeDebugPrivilege	1588	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe
Token: SeDebugPrivilege	1068	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe
Token: SeDebugPrivilege	3236	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

pid process

1588 7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

pid	process
1588	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

description	pid	process	target process
PID 1588 wrote to memory of 3296	1588	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe	powershell.exe
PID 1588 wrote to memory of 3296	1588	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe	powershell.exe
PID 1588 wrote to memory of 4928	1588	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe	powershell.exe
PID 1588 wrote to memory of 4928	1588	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe	powershell.exe
PID 1588 wrote to memory of 732	1588	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe	powershell.exe
PID 1588 wrote to memory of 732	1588	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe	powershell.exe
PID 1588 wrote to memory of 828	1588	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe	schtasks.exe
PID 1588 wrote to memory of 828	1588	7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe	schtasks.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe
"C:\Users\Admin\AppData\Local\Temp\7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1588

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\7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3296

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4928

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\7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:732

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448" /tr "C:\Users\Admin\AppData\Local\7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe"
2⤵
- Creates scheduled task(s)
PID:828

C:\Users\Admin\AppData\Local\7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe
C:\Users\Admin\AppData\Local\7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1068

C:\Users\Admin\AppData\Local\7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe
C:\Users\Admin\AppData\Local\7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3236

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

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\7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

Filesize
38KB

MD5
1077d2817de834e79983fa8bb6dde71e

SHA1
f251d74238b838ce1605b889d80327a1e47e9a40

SHA256
7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448

SHA512
3132c7690ddc33e6c8b7d9533f7b8500bfce540eeee61db706dcc4847d7dcf7634206fd8f04c437706e9412bb09c7706b016b8633c17661f322475046e5d1bba

Download Submit
C:\Users\Admin\AppData\Local\7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

Filesize
38KB

MD5
1077d2817de834e79983fa8bb6dde71e

SHA1
f251d74238b838ce1605b889d80327a1e47e9a40

SHA256
7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448

SHA512
3132c7690ddc33e6c8b7d9533f7b8500bfce540eeee61db706dcc4847d7dcf7634206fd8f04c437706e9412bb09c7706b016b8633c17661f322475046e5d1bba

Download Submit
C:\Users\Admin\AppData\Local\7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

Filesize
38KB

MD5
1077d2817de834e79983fa8bb6dde71e

SHA1
f251d74238b838ce1605b889d80327a1e47e9a40

SHA256
7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448

SHA512
3132c7690ddc33e6c8b7d9533f7b8500bfce540eeee61db706dcc4847d7dcf7634206fd8f04c437706e9412bb09c7706b016b8633c17661f322475046e5d1bba

Download Submit
C:\Users\Admin\AppData\Local\7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe

Filesize
38KB

MD5
1077d2817de834e79983fa8bb6dde71e

SHA1
f251d74238b838ce1605b889d80327a1e47e9a40

SHA256
7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448

SHA512
3132c7690ddc33e6c8b7d9533f7b8500bfce540eeee61db706dcc4847d7dcf7634206fd8f04c437706e9412bb09c7706b016b8633c17661f322475046e5d1bba

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\7f8e216231c8e0e57f4d6e06edb5c20fbed0cfa36c44058ad5809935c4a06448.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
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
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
944B

MD5
60945d1a2e48da37d4ce8d9c56b6845a

SHA1
83e80a6acbeb44b68b0da00b139471f428a9d6c1

SHA256
314b91c00997034d6e015f40230d90ebbf57de5dc938b62c1a214d591793dbe3

SHA512
5d068f1d6443e26ae3cad1c80f969e50e5860967b314153c4d3b6efd1cfa39f0907c6427bec7fa43db079f258b6357e4e9a1b0b1a36b1481d2049ea0e67909ed

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wo11grus.1e0.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1588-133-0x0000000000420000-0x0000000000430000-memory.dmp

Filesize
64KB

Download
memory/1588-185-0x0000000000CA0000-0x0000000000CB0000-memory.dmp

Filesize
64KB

Download
memory/1588-184-0x0000000000CA0000-0x0000000000CB0000-memory.dmp

Filesize
64KB

Download
memory/3296-146-0x000002537E620000-0x000002537E630000-memory.dmp

Filesize
64KB

Download
memory/3296-145-0x000002537E620000-0x000002537E630000-memory.dmp

Filesize
64KB

Download
memory/3296-144-0x000002537E620000-0x000002537E630000-memory.dmp

Filesize
64KB

Download
memory/3296-140-0x000002537FA00000-0x000002537FA22000-memory.dmp

Filesize
136KB

Download
memory/4928-163-0x000001F6ECA50000-0x000001F6ECA60000-memory.dmp

Filesize
64KB

Download
memory/4928-162-0x000001F6ECA50000-0x000001F6ECA60000-memory.dmp

Filesize
64KB

Download
memory/4928-161-0x000001F6ECA50000-0x000001F6ECA60000-memory.dmp

Filesize
64KB

Download
memory/4928-160-0x000001F6ECA50000-0x000001F6ECA60000-memory.dmp

Filesize
64KB

Download