xworm | b7a161f65a0b4069006bbf460c2e5bdb61954258eee13834d4360e6f06dd7297

General

Target

6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe
Size

70KB
MD5

076fd5122925ed14d20711b912f79112
SHA1

69f0d0a82616fa4cd8a294a90418f94f614f877a
SHA256

6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e
SHA512

6c497c8815f8225e112865ba9e228d905cef356d18a0d75297fdfafc9045501d5103b5bf8f35d7a1b89f8dce02c906278065990b1e55a7ee5f22e27be2021b28
SSDEEP

1536:i8QQ5i1NvQ4IwNdVrZTE1X/iXxwWZbk+VcYXjDn6Q8OETLwKDNxSr:qQ54IwV10sxZbk+cXOqpcr

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

194.145.138.88:1604

Attributes

install_file
USB.exe

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\International\Geo\Nation	6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.lnk	6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.lnk	6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e = "C:\\Users\\Admin\\AppData\\Roaming\\6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe"	6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3936	powershell.exe
3936	powershell.exe
4592	powershell.exe
4592	powershell.exe
228	powershell.exe
228	powershell.exe
4192	6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	4192	6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe
Token: SeDebugPrivilege	3936	powershell.exe
Token: SeDebugPrivilege	4592	powershell.exe
Token: SeDebugPrivilege	228	powershell.exe
Token: SeDebugPrivilege	4192	6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4192	6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4192 wrote to memory of 3936	4192	6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe	85
PID 4192 wrote to memory of 3936	4192	6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe	85
PID 4192 wrote to memory of 4592	4192	6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe	87
PID 4192 wrote to memory of 4592	4192	6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe	87
PID 4192 wrote to memory of 228	4192	6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe	89
PID 4192 wrote to memory of 228	4192	6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe	89

C:\Users\Admin\AppData\Local\Temp\6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe
"C:\Users\Admin\AppData\Local\Temp\6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.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:4192
- 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\6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3936
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4592
- 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\6e116713f7dbf7001384a4aa15ba193cf9f9f4e2e6685ead326317a78623a57e.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:228

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

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

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
9a2c763c5ff40e18e49ad63c7c3b0088

SHA1
4b289ea34755323fa869da6ad6480d8d12385a36

SHA256
517807921c55bd16cd8a8bfae3d5dc19444c66f836b66acd5593e3080acbaf8e

SHA512
3af01926bc7de92076067d158d7250b206d396b3282ee0db43639d04d91bd9ff763acbce12c7822914824984a3c5fdd1b8dbf1ad2ee88233d47f0f808b746bc8

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_t1minvoo.q1z.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/228-158-0x000001A2A0C00000-0x000001A2A0C10000-memory.dmp

Filesize
64KB

Download
memory/228-159-0x000001A2A0C00000-0x000001A2A0C10000-memory.dmp

Filesize
64KB

Download
memory/3936-139-0x0000029356F70000-0x0000029356F92000-memory.dmp

Filesize
136KB

Download
memory/4192-133-0x0000000000080000-0x0000000000098000-memory.dmp

Filesize
96KB

Download
memory/4192-177-0x000000001BB30000-0x000000001BB40000-memory.dmp

Filesize
64KB

Download
memory/4192-178-0x000000001BB30000-0x000000001BB40000-memory.dmp

Filesize
64KB

Download

Analysis

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