xworm | 18d37313e2031210a8fc92e46838675fe446b1d43f927ab765b8020f133e6522

General

Target

1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.exe
Size

188KB
MD5

e796b778b392f06de4d340ec0f88b4cc
SHA1

32561bf3b022aef8a62bac3e820ef7e3bc648f57
SHA256

1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05
SHA512

dcdbeb8d1720b2bfe8ce8c2311414b71ec090eb94db53d379c08cbf7b17a25ac4bc9488315e867406bb1661a76df223c953f01c7d40997fdf9ccb20daaf4c8c7
SSDEEP

3072:2rhv4AbmL4mkbrz9EO7PvJKRUGKXs+S++7KFSbxeY+qDDrMn:2r7bmclbX3ZGqStKEbxI

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

23.ip.gl.ply.gg:57660

Attributes

Install_directory
%AppData%
install_file
msedge.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4944-1-0x0000000000610000-0x0000000000644000-memory.dmp	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
2332	powershell.exe
1256	powershell.exe
1840	powershell.exe
4188	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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\msedge.lnk	1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\msedge.lnk	1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\msedge = "C:\\Users\\Admin\\AppData\\Roaming\\msedge.exe"	1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4188	powershell.exe
4188	powershell.exe
2332	powershell.exe
2332	powershell.exe
1256	powershell.exe
1256	powershell.exe
1840	powershell.exe
1840	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4944	1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.exe
Token: SeDebugPrivilege	4188	powershell.exe
Token: SeDebugPrivilege	2332	powershell.exe
Token: SeDebugPrivilege	1256	powershell.exe
Token: SeDebugPrivilege	1840	powershell.exe
Token: SeDebugPrivilege	4944	1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4944 wrote to memory of 4188	4944	1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.exe	87
PID 4944 wrote to memory of 4188	4944	1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.exe	87
PID 4944 wrote to memory of 2332	4944	1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.exe	93
PID 4944 wrote to memory of 2332	4944	1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.exe	93
PID 4944 wrote to memory of 1256	4944	1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.exe	95
PID 4944 wrote to memory of 1256	4944	1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.exe	95
PID 4944 wrote to memory of 1840	4944	1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.exe	97
PID 4944 wrote to memory of 1840	4944	1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.exe	97

C:\Users\Admin\AppData\Local\Temp\1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.exe
"C:\Users\Admin\AppData\Local\Temp\1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4944
- 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\1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4188
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2332
- 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:1256
- 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:1840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

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\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
6d3e9c29fe44e90aae6ed30ccf799ca8

SHA1
c7974ef72264bbdf13a2793ccf1aed11bc565dce

SHA256
2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

SHA512
60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

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

Filesize
944B

MD5
38ee5c3214329d1734dfcb58c2267006

SHA1
c550df665b283d431821914b659369037814b934

SHA256
797610440d08833b9426cf32d573638594a6b9edfa3b2188f398ff6767f87658

SHA512
77059e3c4307b2c882a2dc0fa05f77a6f891eb407ebb7bdee44b92e607cbfee3b674376dfaabf72d83e02b97f7fbcb2ebb6b22f7fdc9ac01a8ef01183ac5ba01

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

Filesize
944B

MD5
76de0d381ca270b0d7daa729b8040090

SHA1
3aefa584da0da87c1ef7b24b5eff0fca29348f54

SHA256
01768f5b8af8d74fe499a48537bf897f995ebab0ce3054c3a54fb48d2d7e7d93

SHA512
c305a3a6193bef8766e90e378735b2e343fa22134c177f977a1ccd6394717b33d523071374dcca5759cf7050745d496995f0c9eed944550d44cfe7b7766e01d7

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wdudr2rq.bms.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/4188-13-0x00007FFC0D290000-0x00007FFC0DD51000-memory.dmp

Filesize
10.8MB

Download
memory/4188-14-0x00007FFC0D290000-0x00007FFC0DD51000-memory.dmp

Filesize
10.8MB

Download
memory/4188-17-0x00007FFC0D290000-0x00007FFC0DD51000-memory.dmp

Filesize
10.8MB

Download
memory/4188-12-0x00007FFC0D290000-0x00007FFC0DD51000-memory.dmp

Filesize
10.8MB

Download
memory/4188-11-0x000001DE574D0000-0x000001DE574F2000-memory.dmp

Filesize
136KB

Download
memory/4944-0-0x00007FFC0D293000-0x00007FFC0D295000-memory.dmp

Filesize
8KB

Download
memory/4944-1-0x0000000000610000-0x0000000000644000-memory.dmp

Filesize
208KB

Download
memory/4944-56-0x00007FFC0D290000-0x00007FFC0DD51000-memory.dmp

Filesize
10.8MB

Download
memory/4944-57-0x00007FFC0D290000-0x00007FFC0DD51000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads