xworm | c957f49c83a072dab5123678effaaad3f542f44de1623e9279b6bcad494ff473

General

Target

e336a33c2c6ef1b71897e04f59c5ea00N.exe
Size

91KB
MD5

e336a33c2c6ef1b71897e04f59c5ea00
SHA1

83de5a95ef7d08493685cd85cf0da0d795ff9dee
SHA256

c957f49c83a072dab5123678effaaad3f542f44de1623e9279b6bcad494ff473
SHA512

81a29f5996077906c2555c0f65b3e5e7e21d3814743142b3705a47f61c3d33559d4a5a17a1e76bf4b9eb06581385f3cefcac802c606f800c090973f457754f91
SSDEEP

1536:uCTvRj/WzQK/d13ZMWHW5xAv9bsRE0hFKVAQnq6iQluyOr5B3l729Ldls:zdaZ/d3M+YQbsOZAyOv3li9Ps

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

wednesday-secured.gl.at.ply.gg:44769

Attributes

Install_directory
%AppData%
install_file
svchost.exe
telegram
https://api.telegram.org/bot6338125361:AAFHgK-I9epBYaZIY8qosT_ZBDd6uU7zgHc/sendMessage?chat_id=1242905715

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/2884-1-0x0000000000F20000-0x0000000000F3E000-memory.dmp	family_xworm
behavioral2/files/0x000c000000023400-60.dat	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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
244	powershell.exe
4468	powershell.exe
3112	powershell.exe
4892	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-1-5-21-384068567-2943195810-3631207890-1000\Control Panel\International\Geo\Nation	e336a33c2c6ef1b71897e04f59c5ea00N.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	e336a33c2c6ef1b71897e04f59c5ea00N.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	e336a33c2c6ef1b71897e04f59c5ea00N.exe

Executes dropped EXE 2 IoCs

pid	Process
2792	svchost.exe
3980	svchost.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-1-5-21-384068567-2943195810-3631207890-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	e336a33c2c6ef1b71897e04f59c5ea00N.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
23	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
4336	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
244	powershell.exe
244	powershell.exe
4468	powershell.exe
4468	powershell.exe
3112	powershell.exe
3112	powershell.exe
4892	powershell.exe
4892	powershell.exe
2884	e336a33c2c6ef1b71897e04f59c5ea00N.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2884	e336a33c2c6ef1b71897e04f59c5ea00N.exe
Token: SeDebugPrivilege	244	powershell.exe
Token: SeDebugPrivilege	4468	powershell.exe
Token: SeDebugPrivilege	3112	powershell.exe
Token: SeDebugPrivilege	4892	powershell.exe
Token: SeDebugPrivilege	2884	e336a33c2c6ef1b71897e04f59c5ea00N.exe
Token: SeDebugPrivilege	2792	svchost.exe
Token: SeDebugPrivilege	3980	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2884	e336a33c2c6ef1b71897e04f59c5ea00N.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2884 wrote to memory of 244	2884	e336a33c2c6ef1b71897e04f59c5ea00N.exe	91
PID 2884 wrote to memory of 244	2884	e336a33c2c6ef1b71897e04f59c5ea00N.exe	91
PID 2884 wrote to memory of 4468	2884	e336a33c2c6ef1b71897e04f59c5ea00N.exe	94
PID 2884 wrote to memory of 4468	2884	e336a33c2c6ef1b71897e04f59c5ea00N.exe	94
PID 2884 wrote to memory of 3112	2884	e336a33c2c6ef1b71897e04f59c5ea00N.exe	96
PID 2884 wrote to memory of 3112	2884	e336a33c2c6ef1b71897e04f59c5ea00N.exe	96
PID 2884 wrote to memory of 4892	2884	e336a33c2c6ef1b71897e04f59c5ea00N.exe	98
PID 2884 wrote to memory of 4892	2884	e336a33c2c6ef1b71897e04f59c5ea00N.exe	98
PID 2884 wrote to memory of 4336	2884	e336a33c2c6ef1b71897e04f59c5ea00N.exe	101
PID 2884 wrote to memory of 4336	2884	e336a33c2c6ef1b71897e04f59c5ea00N.exe	101

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\e336a33c2c6ef1b71897e04f59c5ea00N.exe
"C:\Users\Admin\AppData\Local\Temp\e336a33c2c6ef1b71897e04f59c5ea00N.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:2884
- 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\e336a33c2c6ef1b71897e04f59c5ea00N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:244
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'e336a33c2c6ef1b71897e04f59c5ea00N.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4468
- 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\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3112
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4892
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4336

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2792

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3980

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\CLR_v4.0\UsageLogs\svchost.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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
e5663972c1caaba7088048911c758bf3

SHA1
3462dea0f9c2c16a9c3afdaef8bbb1f753c1c198

SHA256
9f7f29a4696876cadca3f14d7e43f9ede0c97fd64be3f5d94bda49a91b6a419e

SHA512
ff4e72c46cf083de62baa2ce2661555dd91b5f144294015f7b262fd4500cb67fe80e1871a82da63b607e3e9cef401f4b73c587bf1134637881ecad51aad1eddc

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

Filesize
944B

MD5
f6f2afa74755167419564a30c533ff44

SHA1
4bedef1851de1f9147c817c91d7020f0cbee0c67

SHA256
a6e5125f25de0469e01bfbfeb724824285229076dd2d031b0216128ded29de88

SHA512
31c4c51c46398ad75ba0930a00ca2581137a6cf5ed7239dac48add422048fcb75de777aa1f2f2000f5bf030ae537eca9595b43f774fb65122d8b4436f3b510ca

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gygcteu4.pvy.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
91KB

MD5
e336a33c2c6ef1b71897e04f59c5ea00

SHA1
83de5a95ef7d08493685cd85cf0da0d795ff9dee

SHA256
c957f49c83a072dab5123678effaaad3f542f44de1623e9279b6bcad494ff473

SHA512
81a29f5996077906c2555c0f65b3e5e7e21d3814743142b3705a47f61c3d33559d4a5a17a1e76bf4b9eb06581385f3cefcac802c606f800c090973f457754f91

Download Submit
memory/244-9-0x00007FFC07F10000-0x00007FFC089D1000-memory.dmp

Filesize
10.8MB

Download
memory/244-16-0x00007FFC07F10000-0x00007FFC089D1000-memory.dmp

Filesize
10.8MB

Download
memory/244-19-0x00007FFC07F10000-0x00007FFC089D1000-memory.dmp

Filesize
10.8MB

Download
memory/244-15-0x00007FFC07F10000-0x00007FFC089D1000-memory.dmp

Filesize
10.8MB

Download
memory/244-14-0x00007FFC07F10000-0x00007FFC089D1000-memory.dmp

Filesize
10.8MB

Download
memory/244-3-0x00000223A4F90000-0x00000223A4FB2000-memory.dmp

Filesize
136KB

Download
memory/2884-0-0x00007FFC07F13000-0x00007FFC07F15000-memory.dmp

Filesize
8KB

Download
memory/2884-58-0x00007FFC07F13000-0x00007FFC07F15000-memory.dmp

Filesize
8KB

Download
memory/2884-59-0x00007FFC07F10000-0x00007FFC089D1000-memory.dmp

Filesize
10.8MB

Download
memory/2884-2-0x00007FFC07F10000-0x00007FFC089D1000-memory.dmp

Filesize
10.8MB

Download
memory/2884-1-0x0000000000F20000-0x0000000000F3E000-memory.dmp

Filesize
120KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads