xworm | 85fada75b9d311360bd78122da7dc5fa5c46f57e4352df77d6501e089893b3e2

General

Target

944029da-76d7-4da7-8d0e-767cf1f85ec6.exe
Size

468KB
MD5

b7ad36b9a91d81cb3e911069f5303e85
SHA1

0b32c48e059e5f2c57162864ef61d80e408b0934
SHA256

85fada75b9d311360bd78122da7dc5fa5c46f57e4352df77d6501e089893b3e2
SHA512

1f0007a6d7668b040eb8b481318912c0c1a3df8aa9e750d44d44b5f860ce244e22f296d6beb77f2e1f415eec6b7de468f2574e2d53f185fb8a50c718ef12f15a
SSDEEP

3072:ZpQiMpwVW7dJRV40P8Yvimdqz2qZbrUM:nykSdF8QHsFb

Score

10^/10

Malware Config

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/4120-0-0x0000000000930000-0x00000000009AA000-memory.dmp	family_xworm

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Control Panel\International\Geo\Nation	944029da-76d7-4da7-8d0e-767cf1f85ec6.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	944029da-76d7-4da7-8d0e-767cf1f85ec6.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\msedge.lnk	944029da-76d7-4da7-8d0e-767cf1f85ec6.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-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\msedge = "C:\\Users\\Admin\\AppData\\Roaming\\msedge.exe"	944029da-76d7-4da7-8d0e-767cf1f85ec6.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
18	ip-api.com

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

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/Job

T1053

pid	Process
948	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
4120	944029da-76d7-4da7-8d0e-767cf1f85ec6.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
5016	powershell.exe
5016	powershell.exe
2104	powershell.exe
2104	powershell.exe
4852	powershell.exe
4852	powershell.exe
4284	powershell.exe
4284	powershell.exe
4120	944029da-76d7-4da7-8d0e-767cf1f85ec6.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4120	944029da-76d7-4da7-8d0e-767cf1f85ec6.exe
Token: SeDebugPrivilege	5016	powershell.exe
Token: SeDebugPrivilege	2104	powershell.exe
Token: SeDebugPrivilege	4852	powershell.exe
Token: SeDebugPrivilege	4284	powershell.exe
Token: SeDebugPrivilege	4120	944029da-76d7-4da7-8d0e-767cf1f85ec6.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4120	944029da-76d7-4da7-8d0e-767cf1f85ec6.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 5016	4120	944029da-76d7-4da7-8d0e-767cf1f85ec6.exe	86
PID 4120 wrote to memory of 5016	4120	944029da-76d7-4da7-8d0e-767cf1f85ec6.exe	86
PID 4120 wrote to memory of 2104	4120	944029da-76d7-4da7-8d0e-767cf1f85ec6.exe	91
PID 4120 wrote to memory of 2104	4120	944029da-76d7-4da7-8d0e-767cf1f85ec6.exe	91
PID 4120 wrote to memory of 4852	4120	944029da-76d7-4da7-8d0e-767cf1f85ec6.exe	93
PID 4120 wrote to memory of 4852	4120	944029da-76d7-4da7-8d0e-767cf1f85ec6.exe	93
PID 4120 wrote to memory of 4284	4120	944029da-76d7-4da7-8d0e-767cf1f85ec6.exe	96
PID 4120 wrote to memory of 4284	4120	944029da-76d7-4da7-8d0e-767cf1f85ec6.exe	96
PID 4120 wrote to memory of 948	4120	944029da-76d7-4da7-8d0e-767cf1f85ec6.exe	100
PID 4120 wrote to memory of 948	4120	944029da-76d7-4da7-8d0e-767cf1f85ec6.exe	100

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\944029da-76d7-4da7-8d0e-767cf1f85ec6.exe
"C:\Users\Admin\AppData\Local\Temp\944029da-76d7-4da7-8d0e-767cf1f85ec6.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4120
- 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\944029da-76d7-4da7-8d0e-767cf1f85ec6.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5016
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '944029da-76d7-4da7-8d0e-767cf1f85ec6.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2104
- 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⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4852
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'msedge.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4284
- 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⤵
  - Creates scheduled task(s)
  PID:948

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

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

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
cadef9abd087803c630df65264a6c81c

SHA1
babbf3636c347c8727c35f3eef2ee643dbcc4bd2

SHA256
cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438

SHA512
7278aa87124abb382d9024a645e881e7b7cf1b84e8894943b36e018dbf0399e6858392f77980b599fa5488e2e21bf757a0702fe6419417edac93b68e0c2ec085

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

Filesize
944B

MD5
fd98baf5a9c30d41317663898985593b

SHA1
ea300b99f723d2429d75a6c40e0838bf60f17aad

SHA256
9d97a5bbc88fdcceac25f293383f7e5ce242675460ffbfb2ee9090870c034e96

SHA512
bf4dbbd671b5d7afb326622a7c781f150860294d3dba7160330046c258c84a15981c70e50d84dc7faaa7cc8b8c90bf8df818b3f2d3806a8a3671dfe5e38fe7b0

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

Filesize
944B

MD5
04fa9961ef35a19019e747bf85e27bdb

SHA1
facfafbbb23543f36a03ca8f255385937d2c83e6

SHA256
6e0cd740ac1d5e71f6a14035bf647aa456e6b135b25313194d12de4d4c4c2267

SHA512
df9bad7a5f8eb22610f04ee1a728e857952dfa54f936a9b6121cf64ca7400615c36047387a42f16413e833af54d7671bc2c2945f40d3e78f34a45f43e0971111

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ocplmg1q.doz.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2104-24-0x000002B72B220000-0x000002B72B230000-memory.dmp

Filesize
64KB

Download
memory/2104-37-0x000002B72B220000-0x000002B72B230000-memory.dmp

Filesize
64KB

Download
memory/2104-39-0x00007FFD3F220000-0x00007FFD3FCE1000-memory.dmp

Filesize
10.8MB

Download
memory/2104-35-0x000002B72B220000-0x000002B72B230000-memory.dmp

Filesize
64KB

Download
memory/2104-23-0x000002B72B220000-0x000002B72B230000-memory.dmp

Filesize
64KB

Download
memory/2104-22-0x00007FFD3F220000-0x00007FFD3FCE1000-memory.dmp

Filesize
10.8MB

Download
memory/4120-2-0x000000001B630000-0x000000001B640000-memory.dmp

Filesize
64KB

Download
memory/4120-0-0x0000000000930000-0x00000000009AA000-memory.dmp

Filesize
488KB

Download
memory/4120-1-0x00007FFD3F220000-0x00007FFD3FCE1000-memory.dmp

Filesize
10.8MB

Download
memory/4120-36-0x00007FFD3F220000-0x00007FFD3FCE1000-memory.dmp

Filesize
10.8MB

Download
memory/4284-70-0x00007FFD3F220000-0x00007FFD3FCE1000-memory.dmp

Filesize
10.8MB

Download
memory/4284-68-0x000002254C270000-0x000002254C280000-memory.dmp

Filesize
64KB

Download
memory/4284-57-0x000002254C270000-0x000002254C280000-memory.dmp

Filesize
64KB

Download
memory/4284-56-0x000002254C270000-0x000002254C280000-memory.dmp

Filesize
64KB

Download
memory/4284-55-0x00007FFD3F220000-0x00007FFD3FCE1000-memory.dmp

Filesize
10.8MB

Download
memory/4852-41-0x0000017CEF010000-0x0000017CEF020000-memory.dmp

Filesize
64KB

Download
memory/4852-40-0x00007FFD3F220000-0x00007FFD3FCE1000-memory.dmp

Filesize
10.8MB

Download
memory/4852-52-0x0000017CEF010000-0x0000017CEF020000-memory.dmp

Filesize
64KB

Download
memory/4852-54-0x00007FFD3F220000-0x00007FFD3FCE1000-memory.dmp

Filesize
10.8MB

Download
memory/5016-4-0x0000026B22BB0000-0x0000026B22BC0000-memory.dmp

Filesize
64KB

Download
memory/5016-5-0x0000026B22BB0000-0x0000026B22BC0000-memory.dmp

Filesize
64KB

Download
memory/5016-6-0x0000026B22B50000-0x0000026B22B72000-memory.dmp

Filesize
136KB

Download
memory/5016-16-0x0000026B22BB0000-0x0000026B22BC0000-memory.dmp

Filesize
64KB

Download
memory/5016-3-0x00007FFD3F220000-0x00007FFD3FCE1000-memory.dmp

Filesize
10.8MB

Download
memory/5016-17-0x0000026B22BB0000-0x0000026B22BC0000-memory.dmp

Filesize
64KB

Download
memory/5016-20-0x00007FFD3F220000-0x00007FFD3FCE1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads