xworm | dd613b3cad5815102a816ec70b1518d413c7e2998be64a49eecd5f14b28d42ed

General

Target

fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe
Size

158KB
MD5

1ade097499dd5fb334ffe69d06d00b31
SHA1

ab5e0d3a2e0a71b2afe9a04bd24835a8f5874079
SHA256

fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730
SHA512

b35aec83bbf5e0501a706df42db4db1b077acf88e37a4d6c65b52c83f24db0e0eb33fad9f22f0a847a14f6540419d85e24062f9c65a2a6d96db5ab20d315598e
SSDEEP

3072:6vpWpop9+bNFwwO52HJe5BV0bUniyimyx:IVpkbEaJe5v0bURy

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

topics-junior.at.ply.gg:45283

Attributes

Install_directory
%AppData%
install_file
msedge.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4588-1-0x0000000000FA0000-0x0000000000FCC000-memory.dmp	family_xworm
behavioral2/files/0x0012000000023a78-59.dat	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
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
2312	powershell.exe
1392	powershell.exe
2364	powershell.exe
932	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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\msedge.lnk	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\msedge.lnk	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe

Executes dropped EXE 2 IoCs

pid	Process
4512	msedge.exe
3164	msedge.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\msedge = "C:\\Users\\Admin\\AppData\\Roaming\\msedge.exe"	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4372	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2312	powershell.exe
2312	powershell.exe
1392	powershell.exe
1392	powershell.exe
2364	powershell.exe
2364	powershell.exe
932	powershell.exe
932	powershell.exe
4588	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	4588	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe
Token: SeDebugPrivilege	2312	powershell.exe
Token: SeDebugPrivilege	1392	powershell.exe
Token: SeDebugPrivilege	2364	powershell.exe
Token: SeDebugPrivilege	932	powershell.exe
Token: SeDebugPrivilege	4588	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe
Token: SeDebugPrivilege	4512	msedge.exe
Token: SeDebugPrivilege	3164	msedge.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4588	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4588 wrote to memory of 2312	4588	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	87
PID 4588 wrote to memory of 2312	4588	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	87
PID 4588 wrote to memory of 1392	4588	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	89
PID 4588 wrote to memory of 1392	4588	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	89
PID 4588 wrote to memory of 2364	4588	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	91
PID 4588 wrote to memory of 2364	4588	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	91
PID 4588 wrote to memory of 932	4588	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	93
PID 4588 wrote to memory of 932	4588	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	93
PID 4588 wrote to memory of 4372	4588	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	97
PID 4588 wrote to memory of 4372	4588	fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe	97

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\fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe
"C:\Users\Admin\AppData\Local\Temp\fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.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:4588
- 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\fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2312
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1392
- 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\Roaming\msedge.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2364
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'msedge.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:932
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "msedge" /tr "C:\Users\Admin\AppData\Roaming\msedge.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4372

C:\Users\Admin\AppData\Roaming\msedge.exe
C:\Users\Admin\AppData\Roaming\msedge.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4512

C:\Users\Admin\AppData\Roaming\msedge.exe
C:\Users\Admin\AppData\Roaming\msedge.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3164

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\msedge.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
eb1ad317bd25b55b2bbdce8a28a74a94

SHA1
98a3978be4d10d62e7411946474579ee5bdc5ea6

SHA256
9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98

SHA512
d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0

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

Filesize
944B

MD5
15dde0683cd1ca19785d7262f554ba93

SHA1
d039c577e438546d10ac64837b05da480d06bf69

SHA256
d6fa39eab7ee36f44dc3f9f2839d098433db95c1eba924e4bcf4e5c0d268d961

SHA512
57c0e1b87bc1c136f0d39f3ce64bb8f8274a0491e4ca6e45e5c7f9070aa9d9370c6f590ce37cd600b252df2638d870205249a514c43245ca7ed49017024a4672

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xjnzk0mk.fvp.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\msedge.exe

Filesize
158KB

MD5
1ade097499dd5fb334ffe69d06d00b31

SHA1
ab5e0d3a2e0a71b2afe9a04bd24835a8f5874079

SHA256
fa5a74ef1355ddd1d5984b84d52d7aa0727e11e40a89ca3a2bbf4594eea57730

SHA512
b35aec83bbf5e0501a706df42db4db1b077acf88e37a4d6c65b52c83f24db0e0eb33fad9f22f0a847a14f6540419d85e24062f9c65a2a6d96db5ab20d315598e

Download Submit
memory/2312-12-0x00007FFED1090000-0x00007FFED1B51000-memory.dmp

Filesize
10.8MB

Download
memory/2312-17-0x00007FFED1090000-0x00007FFED1B51000-memory.dmp

Filesize
10.8MB

Download
memory/2312-14-0x00007FFED1090000-0x00007FFED1B51000-memory.dmp

Filesize
10.8MB

Download
memory/2312-13-0x00007FFED1090000-0x00007FFED1B51000-memory.dmp

Filesize
10.8MB

Download
memory/2312-2-0x000001DA8D340000-0x000001DA8D362000-memory.dmp

Filesize
136KB

Download
memory/4588-0-0x00007FFED1093000-0x00007FFED1095000-memory.dmp

Filesize
8KB

Download
memory/4588-56-0x00007FFED1090000-0x00007FFED1B51000-memory.dmp

Filesize
10.8MB

Download
memory/4588-57-0x00007FFED1093000-0x00007FFED1095000-memory.dmp

Filesize
8KB

Download
memory/4588-58-0x00007FFED1090000-0x00007FFED1B51000-memory.dmp

Filesize
10.8MB

Download
memory/4588-1-0x0000000000FA0000-0x0000000000FCC000-memory.dmp

Filesize
176KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads