xworm | e6cd1d4f3e1ddb7cb9d41186bbf8c10494c91388f2aed84a95f62568ef11fcd1

General

Target

1337 Crack.exe
Size

18.6MB
MD5

9505ebe349e9fefa3eab68142b85fac8
SHA1

2b33fc2d0aa8759d1e9535a829a68f68b0382f53
SHA256

e6cd1d4f3e1ddb7cb9d41186bbf8c10494c91388f2aed84a95f62568ef11fcd1
SHA512

72cce65ac22d7fcb41e63f6096de95114d5b359f75c97ccad14d5aaf9d1a64f8be1ac7f4b6228c9fbf4e8cf8012182eac3277cdd441edda08828c1e5712d51c1
SSDEEP

1536:TcBSENyrdccjBReGabeGXVmiEEZ73C61SO4ors:TcHyrtnxabeGYy53YOnA

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:6673

accessories-fame.gl.at.ply.gg:6673

Attributes

Install_directory
%Userprofile%
install_file
svchost.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral5/memory/3060-1-0x00000000006A0000-0x00000000006B6000-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
3440	powershell.exe
3616	powershell.exe
2188	powershell.exe
2820	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	1337 Crack.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	1337 Crack.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-1-5-21-4018527317-446799424-2810249686-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\svchost.exe"	1337 Crack.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
1	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
1132	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3440	powershell.exe
3440	powershell.exe
3616	powershell.exe
3616	powershell.exe
2188	powershell.exe
2188	powershell.exe
2820	powershell.exe
2820	powershell.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	3060	1337 Crack.exe
Token: SeDebugPrivilege	3440	powershell.exe
Token: SeDebugPrivilege	3616	powershell.exe
Token: SeDebugPrivilege	2188	powershell.exe
Token: SeDebugPrivilege	2820	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 3440	3060	1337 Crack.exe	78
PID 3060 wrote to memory of 3440	3060	1337 Crack.exe	78
PID 3060 wrote to memory of 3616	3060	1337 Crack.exe	80
PID 3060 wrote to memory of 3616	3060	1337 Crack.exe	80
PID 3060 wrote to memory of 2188	3060	1337 Crack.exe	82
PID 3060 wrote to memory of 2188	3060	1337 Crack.exe	82
PID 3060 wrote to memory of 2820	3060	1337 Crack.exe	84
PID 3060 wrote to memory of 2820	3060	1337 Crack.exe	84
PID 3060 wrote to memory of 1132	3060	1337 Crack.exe	86
PID 3060 wrote to memory of 1132	3060	1337 Crack.exe	86

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\1337 Crack.exe
"C:\Users\Admin\AppData\Local\Temp\1337 Crack.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3060
- 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\1337 Crack.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3440
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '1337 Crack.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3616
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2188
- 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:2820
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1132

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

1

T1012

System Information Discovery

1

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
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

Filesize
944B

MD5
2e8eb51096d6f6781456fef7df731d97

SHA1
ec2aaf851a618fb43c3d040a13a71997c25bda43

SHA256
96bfd9dd5883329927fe8c08b8956355a1a6ceb30ceeb5d4252b346df32bc864

SHA512
0a73dc9a49f92d9dd556c2ca2e36761890b3538f355ee1f013e7cf648d8c4d065f28046cd4a167db3dea304d1fbcbcea68d11ce6e12a3f20f8b6c018a60422d2

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

Filesize
944B

MD5
781da0576417bf414dc558e5a315e2be

SHA1
215451c1e370be595f1c389f587efeaa93108b4c

SHA256
41a5aef8b0bbeea2766f40a7bba2c78322379f167c610f7055ccb69e7db030fe

SHA512
24e283aa30a2903ebe154dad49b26067a45e46fec57549ad080d3b9ec3f272044efaaed3822d067837f5521262192f466c47195ffe7f75f8c7c5dcf3159ea737

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

Filesize
944B

MD5
55f30089624be31af328ba4e012ae45a

SHA1
121c28de7a5afe828ea395d94be8f5273817b678

SHA256
28e49da06bd64f06a4cf1a9caead354b94b4d11d5dc916a92da0ed96bad00473

SHA512
ef13cc5b22c754c7816e08b421de64bc8df527d7166e970454139410b2d381b53ebf288ec73013cdce92f0ac226d9ed5b342341db52a8cb0b85b5ad4d3090787

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ewrfw4ut.per.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3060-1-0x00000000006A0000-0x00000000006B6000-memory.dmp

Filesize
88KB

Download
memory/3060-2-0x00007FFD5BC70000-0x00007FFD5C732000-memory.dmp

Filesize
10.8MB

Download
memory/3060-56-0x00007FFD5BC70000-0x00007FFD5C732000-memory.dmp

Filesize
10.8MB

Download
memory/3060-0-0x00007FFD5BC73000-0x00007FFD5BC75000-memory.dmp

Filesize
8KB

Download
memory/3060-51-0x00007FFD5BC73000-0x00007FFD5BC75000-memory.dmp

Filesize
8KB

Download
memory/3440-12-0x00000231FFE70000-0x00000231FFE92000-memory.dmp

Filesize
136KB

Download
memory/3440-19-0x00007FFD5BC70000-0x00007FFD5C732000-memory.dmp

Filesize
10.8MB

Download
memory/3440-16-0x00007FFD5BC70000-0x00007FFD5C732000-memory.dmp

Filesize
10.8MB

Download
memory/3440-15-0x00007FFD5BC70000-0x00007FFD5C732000-memory.dmp

Filesize
10.8MB

Download
memory/3440-14-0x00007FFD5BC70000-0x00007FFD5C732000-memory.dmp

Filesize
10.8MB

Download
memory/3440-13-0x00007FFD5BC70000-0x00007FFD5C732000-memory.dmp

Filesize
10.8MB

Download
memory/3440-3-0x00007FFD5BC70000-0x00007FFD5C732000-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