Malware Analysis Report

2024-09-11 13:53

Sample ID 240615-mvefys1erq
Target LabyMod4Crt.exe
SHA256 ca6becc3a5e5b7fa151258c05c4b3a36bbfd470d347f8da494472988b4f7bb71
Tags
xworm execution rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

ca6becc3a5e5b7fa151258c05c4b3a36bbfd470d347f8da494472988b4f7bb71

Threat Level: Known bad

The file LabyMod4Crt.exe was found to be: Known bad.

Malicious Activity Summary

xworm execution rat trojan

Detect Xworm Payload

Xworm

Xworm family

Command and Scripting Interpreter: PowerShell

Drops startup file

Checks computer location settings

Looks up external IP address via web service

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Command and Scripting Interpreter
T1059
PowerShell
T1059.001
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Query Registry
T1012
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-15 10:46

Signatures

Detect Xworm Payload

Description Indicator Process Target
N/A N/A N/A N/A

Xworm family

xworm

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-15 10:46

Reported

2024-06-15 10:49

Platform

win7-20240611-en

Max time kernel

146s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe"

Signatures

Detect Xworm Payload

Description Indicator Process Target
N/A N/A N/A N/A

Xworm

trojan rat xworm

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1752 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2308 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2320 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2320 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1752 wrote to memory of 2320 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe

"C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe"

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\LabyMod4Crt.exe'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'LabyMod4Crt.exe'

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\XClient.exe'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'

Network

Country Destination Domain Proto
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
N/A 127.0.0.1:23386 tcp
N/A 127.0.0.1:23386 tcp
US 8.8.8.8:53 cameras-happen.gl.at.ply.gg udp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp
N/A 127.0.0.1:23386 tcp
N/A 127.0.0.1:23386 tcp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp
N/A 127.0.0.1:23386 tcp
N/A 127.0.0.1:23386 tcp
N/A 127.0.0.1:23386 tcp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp
N/A 127.0.0.1:23386 tcp

Files

memory/1752-0-0x000007FEF5253000-0x000007FEF5254000-memory.dmp

memory/1752-1-0x0000000000250000-0x0000000000266000-memory.dmp

memory/1752-2-0x000007FEF5250000-0x000007FEF5C3C000-memory.dmp

memory/2824-7-0x000000001B4F0000-0x000000001B7D2000-memory.dmp

memory/2824-8-0x0000000002910000-0x0000000002918000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

MD5 910995c4e4033beabb928ac6887461f8
SHA1 ce5b46f06bb6401a06140566de91c33c1f79e8c8
SHA256 6009f738ab61876737e253e598c54b492c429fe166df941584a9b69f06b41c7b
SHA512 b5ec3eae442f992c3d575f523868fb300bab2078ef491db6046641ff0db05bd5d7364f810123bc239efed958711c697660dcba5013649a37b36519de60a66db7

memory/2664-14-0x000000001B6E0000-0x000000001B9C2000-memory.dmp

memory/2664-15-0x0000000001D20000-0x0000000001D28000-memory.dmp

\??\PIPE\srvsvc

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

memory/1752-31-0x000007FEF5253000-0x000007FEF5254000-memory.dmp

memory/1752-32-0x000007FEF5250000-0x000007FEF5C3C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-15 10:46

Reported

2024-06-15 10:49

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe"

Signatures

Detect Xworm Payload

Description Indicator Process Target
N/A N/A N/A N/A

Xworm

trojan rat xworm

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 312 wrote to memory of 604 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 312 wrote to memory of 604 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 312 wrote to memory of 3984 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 312 wrote to memory of 3984 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 312 wrote to memory of 4980 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 312 wrote to memory of 4980 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 312 wrote to memory of 2192 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 312 wrote to memory of 2192 N/A C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe

"C:\Users\Admin\AppData\Local\Temp\LabyMod4Crt.exe"

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\LabyMod4Crt.exe'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'LabyMod4Crt.exe'

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\XClient.exe'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'

Network

Country Destination Domain Proto
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 cameras-happen.gl.at.ply.gg udp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp
US 8.8.8.8:53 20.221.185.147.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 57.15.31.184.in-addr.arpa udp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp
N/A 127.0.0.1:23386 tcp
N/A 127.0.0.1:23386 tcp
N/A 127.0.0.1:23386 tcp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp
N/A 127.0.0.1:23386 tcp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp
N/A 127.0.0.1:23386 tcp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp

Files

memory/312-0-0x00007FFA95043000-0x00007FFA95045000-memory.dmp

memory/312-1-0x0000000000BE0000-0x0000000000BF6000-memory.dmp

memory/312-2-0x00007FFA95040000-0x00007FFA95B01000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hfvtisxp.jex.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/604-13-0x00007FFA95040000-0x00007FFA95B01000-memory.dmp

memory/604-12-0x000001DA5F240000-0x000001DA5F262000-memory.dmp

memory/604-14-0x00007FFA95040000-0x00007FFA95B01000-memory.dmp

memory/604-15-0x00007FFA95040000-0x00007FFA95B01000-memory.dmp

memory/604-18-0x000001DA5F390000-0x000001DA5F4FA000-memory.dmp

memory/604-19-0x00007FFA95040000-0x00007FFA95B01000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

MD5 6d3e9c29fe44e90aae6ed30ccf799ca8
SHA1 c7974ef72264bbdf13a2793ccf1aed11bc565dce
SHA256 2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d
SHA512 60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

memory/3984-32-0x000002B49BFC0000-0x000002B49C12A000-memory.dmp

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

MD5 22e42e9bd53274ebd4941d8ae5c99da1
SHA1 4e8c58c92c063ec3e3728c42d2595467c1cc37ca
SHA256 cf150397bb413f44296572e4fa3cb29db1b3404eb7508e509bea876fddd1452d
SHA512 63c42d037e6795fab08a3d120e3893ee1d2f534fc6665c1c644e603a1cb3f52d20bbe7e02938d0f22c6f08c3799fd150d57cc84edcc92840634b88c69b8f1efe

memory/4980-44-0x00000208E4A80000-0x00000208E4BEA000-memory.dmp

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

MD5 eb033be02578f9635ec47bdc1de5c3fb
SHA1 ec356bc87381354a06baa9c30e8c3ac3d30e0f6f
SHA256 bd827af3192bf83c75a32e51ed2de83bd3b90d6b99350721a189a57cec15d063
SHA512 4d8778503646f7016df73ff9d204760f4fe4d2b24157920ac3e5651653373975b2f2d229530143059f11b16c42822ad7963e628ad6066022ee712c17d90595ed

memory/2192-56-0x000001E87E9E0000-0x000001E87EB4A000-memory.dmp

memory/312-61-0x00007FFA95043000-0x00007FFA95045000-memory.dmp

memory/312-62-0x00007FFA95040000-0x00007FFA95B01000-memory.dmp