xworm | de902abc6d81684c8557e690ed47ed6d659e0daeda26c7d75e764c8da77771a9

General

Target

UnamBinder.exe
Size

9.6MB
MD5

18c98c616674081b1910103b30ff697a
SHA1

37daea3f1cba0fe605996a3f456897a7bcf7dcdf
SHA256

de902abc6d81684c8557e690ed47ed6d659e0daeda26c7d75e764c8da77771a9
SHA512

3f8a88eb1c0c7cebd0b3a8ff9031a3e13601c15852ce15e35ca732e317a33dd0007988e23b4b884d4d8729e32c88b20c1620183c201d4952024df7a5757a2f03
SSDEEP

196608:uvMovhPSQPJqfRDzlYXi6mB57iy5nVug3MthWK:aJPSPlD6mviy5oh

Score

10^/10

xworm defense_evasion discovery execution rat trojan

Malware Config

Extracted

Family

xworm

C2

look-omega.gl.at.ply.gg:27099

Attributes

Install_directory
%AppData%
install_file
Update.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0008000000023c62-5.dat	family_xworm
behavioral2/memory/1020-13-0x0000000000BF0000-0x0000000000C2A000-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
216	powershell.exe
448	powershell.exe
2576	powershell.exe
2656	powershell.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	UnamBinder.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	msedge.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 4 IoCs

pid	Process
1020	msedge.exe
3460	UnamBinder.exe
3052	Update.exe
1452	Update.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
11	ip-api.com

Obfuscated Files or Information: Command Obfuscation 1 TTPs
Adversaries may obfuscate content during command execution to impede detection.
defense_evasion

Command Obfuscation
T1027.010
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	UnamBinder.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

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
2352	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1020	msedge.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
4004	powershell.exe
4004	powershell.exe
2576	powershell.exe
2576	powershell.exe
2656	powershell.exe
2656	powershell.exe
216	powershell.exe
216	powershell.exe
448	powershell.exe
448	powershell.exe
1020	msedge.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	1020	msedge.exe
Token: SeDebugPrivilege	4004	powershell.exe
Token: SeDebugPrivilege	2576	powershell.exe
Token: SeDebugPrivilege	2656	powershell.exe
Token: SeDebugPrivilege	216	powershell.exe
Token: SeDebugPrivilege	448	powershell.exe
Token: SeDebugPrivilege	1020	msedge.exe
Token: SeDebugPrivilege	3052	Update.exe
Token: SeDebugPrivilege	1452	Update.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1020	msedge.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 4004	1720	UnamBinder.exe	83
PID 1720 wrote to memory of 4004	1720	UnamBinder.exe	83
PID 1720 wrote to memory of 4004	1720	UnamBinder.exe	83
PID 1720 wrote to memory of 1020	1720	UnamBinder.exe	85
PID 1720 wrote to memory of 1020	1720	UnamBinder.exe	85
PID 1720 wrote to memory of 3460	1720	UnamBinder.exe	86
PID 1720 wrote to memory of 3460	1720	UnamBinder.exe	86
PID 1020 wrote to memory of 2576	1020	msedge.exe	88
PID 1020 wrote to memory of 2576	1020	msedge.exe	88
PID 1020 wrote to memory of 2656	1020	msedge.exe	90
PID 1020 wrote to memory of 2656	1020	msedge.exe	90
PID 1020 wrote to memory of 216	1020	msedge.exe	92
PID 1020 wrote to memory of 216	1020	msedge.exe	92
PID 1020 wrote to memory of 448	1020	msedge.exe	94
PID 1020 wrote to memory of 448	1020	msedge.exe	94
PID 1020 wrote to memory of 2352	1020	msedge.exe	97
PID 1020 wrote to memory of 2352	1020	msedge.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\UnamBinder.exe
"C:\Users\Admin\AppData\Local\Temp\UnamBinder.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1720
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAGYAeQBhACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAHcAcgByACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAGUAeABpACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAHcAeQBxACMAPgA="
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4004
- C:\Users\Admin\AppData\Roaming\msedge.exe
  "C:\Users\Admin\AppData\Roaming\msedge.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1020
- - 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'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2576
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'msedge.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2656
- - 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\Update.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:216
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Update.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:448
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Update" /tr "C:\Users\Admin\AppData\Roaming\Update.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2352
- C:\Users\Admin\AppData\Roaming\UnamBinder.exe
  "C:\Users\Admin\AppData\Roaming\UnamBinder.exe"
  2⤵
  - Executes dropped EXE
  PID:3460

C:\Users\Admin\AppData\Roaming\Update.exe
C:\Users\Admin\AppData\Roaming\Update.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3052

C:\Users\Admin\AppData\Roaming\Update.exe
C:\Users\Admin\AppData\Roaming\Update.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1452

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

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Obfuscated Files or Information

1

T1027

Command Obfuscation

1

T1027.010

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Update.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
da5c82b0e070047f7377042d08093ff4

SHA1
89d05987cd60828cca516c5c40c18935c35e8bd3

SHA256
77a94ef8c4258445d538a6006ffadb05afdf888f6f044e1e5466b981a07f16c5

SHA512
7360311a3c97b73dd3f6d7179cd979e0e20d69f380d38292447e17e369087d9dd5acb66cd0cbdd95ac4bfb16e5a1b86825f835a8d45b14ea9812102cff59704b

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

Filesize
944B

MD5
7ce292bb581460978c5b6a6b6c02ea99

SHA1
261d81777c16ad7a104052a3b9d719c26f55ba38

SHA256
e7fcfed5376d00e784f09167de08f1559ae2ffc5a3b3e49c10af538153d7f806

SHA512
af498881c99b46d2a0c6b42d6c96fcc405f220189843d9a4bf0cad6fcdcab29c330322041c96571fb4119fd548f0daaf2e06eabdcc844ab4f645022571116fff

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\Temp\__PSScriptPolicyTest_aova4dl4.znn.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
9.4MB

MD5
70565dbd654937df2eaefc7c79941169

SHA1
5cb8daf1185704a9772f07dcec2e499149517715

SHA256
a90ba5a56422c0d2a41f28da056affd69cc8929e14dcdab1583ec96b50b8e28d

SHA512
64b89f77d6528c838c0288c59203455ea3318028816d4426f818c6b8c3258d8e5e13242b175d7b3402547cfd5a0acddb212b9f9b5bbf5d259cd4befc2d078a4c

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

Filesize
214KB

MD5
d5b6b9cba9f1e67279ea7228c877e810

SHA1
ff83715f79bbd56aa66febec8cb139747a68fd7a

SHA256
99708b3398d0f77eb30f3113ee144bfa4a6efbc68fdf66b751d6928d0cf61ddd

SHA512
6bb127873d3004bf852953c9df2a38913cfaf1d2ff15b6d567881efade947e59f7d23aef1a0a9ec1730608cd2fba19bc3b8b6d6788d9a65f2f820a2869baafe4

Download Submit
memory/1020-135-0x000000001DF70000-0x000000001E119000-memory.dmp

Filesize
1.7MB

Download
memory/1020-131-0x000000001DF70000-0x000000001E119000-memory.dmp

Filesize
1.7MB

Download
memory/1020-127-0x000000001DF70000-0x000000001E119000-memory.dmp

Filesize
1.7MB

Download
memory/1020-125-0x000000001DF70000-0x000000001E119000-memory.dmp

Filesize
1.7MB

Download
memory/1020-124-0x000000001C610000-0x000000001C61C000-memory.dmp

Filesize
48KB

Download
memory/1020-122-0x00007FF98BBA0000-0x00007FF98C661000-memory.dmp

Filesize
10.8MB

Download
memory/1020-13-0x0000000000BF0000-0x0000000000C2A000-memory.dmp

Filesize
232KB

Download
memory/1020-44-0x00007FF98BBA0000-0x00007FF98C661000-memory.dmp

Filesize
10.8MB

Download
memory/1020-11-0x00007FF98BBA3000-0x00007FF98BBA5000-memory.dmp

Filesize
8KB

Download
memory/2576-66-0x000002A7D0AC0000-0x000002A7D0AE2000-memory.dmp

Filesize
136KB

Download
memory/3460-25-0x00007FF98BBA3000-0x00007FF98BBA5000-memory.dmp

Filesize
8KB

Download
memory/3460-121-0x00007FF98BBA3000-0x00007FF98BBA5000-memory.dmp

Filesize
8KB

Download
memory/3460-120-0x0000017B24E60000-0x0000017B25009000-memory.dmp

Filesize
1.7MB

Download
memory/3460-28-0x0000017B09D60000-0x0000017B0A6C2000-memory.dmp

Filesize
9.4MB

Download
memory/4004-31-0x0000000004DC0000-0x0000000004E26000-memory.dmp

Filesize
408KB

Download
memory/4004-60-0x0000000006E10000-0x0000000006E1A000-memory.dmp

Filesize
40KB

Download
memory/4004-59-0x0000000006DA0000-0x0000000006DBA000-memory.dmp

Filesize
104KB

Download
memory/4004-71-0x0000000007030000-0x00000000070C6000-memory.dmp

Filesize
600KB

Download
memory/4004-72-0x0000000006FA0000-0x0000000006FB1000-memory.dmp

Filesize
68KB

Download
memory/4004-58-0x00000000073F0000-0x0000000007A6A000-memory.dmp

Filesize
6.5MB

Download
memory/4004-57-0x0000000006A70000-0x0000000006B13000-memory.dmp

Filesize
652KB

Download
memory/4004-86-0x0000000006FE0000-0x0000000006FEE000-memory.dmp

Filesize
56KB

Download
memory/4004-87-0x0000000006FF0000-0x0000000007004000-memory.dmp

Filesize
80KB

Download
memory/4004-88-0x00000000070D0000-0x00000000070EA000-memory.dmp

Filesize
104KB

Download
memory/4004-90-0x0000000007020000-0x0000000007028000-memory.dmp

Filesize
32KB

Download
memory/4004-56-0x0000000006050000-0x000000000606E000-memory.dmp

Filesize
120KB

Download
memory/4004-46-0x00000000748E0000-0x000000007492C000-memory.dmp

Filesize
304KB

Download
memory/4004-45-0x0000000006A20000-0x0000000006A52000-memory.dmp

Filesize
200KB

Download
memory/4004-43-0x0000000005AB0000-0x0000000005AFC000-memory.dmp

Filesize
304KB

Download
memory/4004-42-0x0000000005A70000-0x0000000005A8E000-memory.dmp

Filesize
120KB

Download
memory/4004-37-0x0000000005470000-0x00000000057C4000-memory.dmp

Filesize
3.3MB

Download
memory/4004-30-0x0000000004D50000-0x0000000004DB6000-memory.dmp

Filesize
408KB

Download
memory/4004-29-0x00000000049B0000-0x00000000049D2000-memory.dmp

Filesize
136KB

Download
memory/4004-27-0x0000000004E30000-0x0000000005458000-memory.dmp

Filesize
6.2MB

Download
memory/4004-26-0x0000000002150000-0x0000000002186000-memory.dmp

Filesize
216KB

Download
memory/4004-21-0x000000007335E000-0x000000007335F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads