xworm | 7fe172c67413d3bcc1b2ae93b2cbd21eec0aa8a31198828c7dc04a310f9677cc

Analysis

max time kernel
93s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
07/03/2025, 04:41

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General

Target
a.ps1
Size 509B
Sample250307-fbgcwatyft
SHA256 7fe172c67413d3bcc1b2ae93b2cbd21eec0aa8a31198828c7dc04a310f9677cc
MD5 5ffc54e178b40c65b7d2fb357492baf5
SHA1 d59d533638f1a755fc37129796e7731ccb6206a8
SHA512 57bcc6b7e00d4638db2d99aef02d5c06c67aee0250db7c3b23fbafa0aaeca0e0df90df1d7258a9ba65db4077ed8548a7e7b391706e28086958e8d9d087d5111c
MD5 SHA1 SHA512

Score

10^/10

xworm discovery execution rat trojan

Malware Config

Extracted

Family

xworm

Version

185.7.214.108:4411
185.7.214.54:4411

aes.plain

Signatures

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral2/files/0x000b000000023be5-25.dat	family_xworm
behavioral2/memory/2808-26-0x000001A3EE1C0000-0x000001A3EE1D0000-memory.dmp	family_xworm
behavioral2/memory/1920-28-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

Blocklisted process makes network request 1 IoCs

flow	pid	Process
4	2808	powershell.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
4	2808	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2808 set thread context of 1920	2808	powershell.exe	95

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2808	powershell.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2808	powershell.exe
2808	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2808	powershell.exe
Token: SeDebugPrivilege	1920	MSBuild.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 4216	2808	powershell.exe	93
PID 2808 wrote to memory of 4216	2808	powershell.exe	93
PID 4216 wrote to memory of 4816	4216	csc.exe	94
PID 4216 wrote to memory of 4816	4216	csc.exe	94
PID 2808 wrote to memory of 1920	2808	powershell.exe	95
PID 2808 wrote to memory of 1920	2808	powershell.exe	95
PID 2808 wrote to memory of 1920	2808	powershell.exe	95
PID 2808 wrote to memory of 1920	2808	powershell.exe	95
PID 2808 wrote to memory of 1920	2808	powershell.exe	95
PID 2808 wrote to memory of 1920	2808	powershell.exe	95
PID 2808 wrote to memory of 1920	2808	powershell.exe	95
PID 2808 wrote to memory of 1920	2808	powershell.exe	95

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\a.ps1
1⤵
- Blocklisted process makes network request
- Downloads MZ/PE file
- Suspicious use of SetThreadContext
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2808
- C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\thfaitcb\thfaitcb.cmdline"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4216
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
    C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESDC75.tmp" "c:\Users\Admin\AppData\Local\Temp\thfaitcb\CSC375EB28CB4904D0798363852F8AD662A.TMP"
    3⤵
    PID:4816
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1920

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

RESDC75.tmp

Path C:\Users\Admin\AppData\Local\Temp\RESDC75.tmp
Size 1KB
SHA256 44fe51477a194d072128be6cf8b15ae15949ad95a683347d69446c5b7f5c7228
MD5 68518deb9a6bf05ca6fe7e08ec3e177c
SHA1 d66be1689357b5fa0e228f9fd2028ccdf123a41b
SHA512 e581b134c5376e1f2a16e7c4a6d2e6dd0250a91c67c5ddbe93a3255c4fcbf19dc2d7ca2e76e33f3b1fd7d463a5abec090cf63ff2f592be66fca54dce88b85fb8
MD5 SHA1 SHA512

Submit Download

__PSScriptPolicyTest_lbpzgk3h.ctx.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lbpzgk3h.ctx.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

thfaitcb.dll

Path C:\Users\Admin\AppData\Local\Temp\thfaitcb\thfaitcb.dll
Size 42KB
SHA256 60dd1f933ed0eba7b2a5cfb7c1073d8ba65b5c4aa1c753c87e3d169be43d99ca
MD5 0fc4b5749a689bf28460eed71046bd5f
SHA1 a9999cd742dadd45fb25843b0311500eb7662909
SHA512 3e88f98c417a0fe5d21b12bcccaa91b58513a07702ed0beb23013f35871f0464f65bb75e2bf9e46359656e783fae80a0b88d41c9a379cbe3d9e8f69f1ad1f65f
SSDEEP 768:QRPD9OQhx/BV3Tw4xqdVFE9jDFOjhkbb60uUUE:Qd9OW/V3U4x8FE9jDFOju3IUUE
MD5 SHA1 SHA512 SSDEEP

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CSC375EB28CB4904D0798363852F8AD662A.TMP

Path \??\c:\Users\Admin\AppData\Local\Temp\thfaitcb\CSC375EB28CB4904D0798363852F8AD662A.TMP
Size 652B
SHA256 de83c9d6d4e83106503cced7c060eabdb61fa8d2809667753e2c154c30029872
MD5 8fff27260f1321bbeaa7fea62486432b
SHA1 026a1d5d9f37bbe2408ddb14507797dcb682d053
SHA512 3e986f4a472db8a9ab4306f66bb9de9b96387096846391fb0c1020381dffb4b947289f6058dea0296ada86e1ea1dd8bbd130cde476a39cba9555878c5a2ffc18
MD5 SHA1 SHA512

Submit Download

thfaitcb.0.cs

Path \??\c:\Users\Admin\AppData\Local\Temp\thfaitcb\thfaitcb.0.cs
Size 104KB
SHA256 3a8459f7033c4dec0a2a8ee37090fa2fe38a2013667c969ac870965deb0b8c8d
MD5 4c235e59a96c8c09a6f7e97b95772164
SHA1 7350cfb88fbf6a2e7a9b12ad85f12e174b22b76a
SHA512 0857cc0c6c0aa7204772873a02fbeb11a05d0c890241eedaee6bf4fdd3a4ceaf18e6d612c7e3d47ba1c077104cf91809b133dc2420864d16cd15315c2d47cdf9
SSDEEP 768:Tiz/g7fB0PHy6BtBOJEjDvwZKEHUNNpo+KH2Hy4oO5HMg+YyT9miNydnAvrh:Wz/gT6S61M8NU2Sce
MD5 SHA1 SHA512 SSDEEP

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thfaitcb.cmdline

Path \??\c:\Users\Admin\AppData\Local\Temp\thfaitcb\thfaitcb.cmdline
Size 204B
SHA256 f320ca23752524c4983228bef08f38f8a64303ae95ec01e346ad4dfdb4d3af9f
MD5 fd933279ea728ff3433922c6a6613e49
SHA1 560025fd87011f0d206ed6904adde23e8853a48e
SHA512 7157fa461b2cde5766ed3f90f06ba208c66f95593c12bfce6a5c72054e609aee6d24bdcfe1efc608a74404eda860748e4b55760f94d1f920bdd8f692b89d1e56
MD5 SHA1 SHA512

Submit Download

memory/1920-33-0x000000007501E000-0x000000007501F000-memory.dmp

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memory/1920-34-0x0000000005400000-0x000000000549C000-memory.dmp

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memory/1920-40-0x0000000006B30000-0x00000000070D4000-memory.dmp

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memory/1920-39-0x00000000064E0000-0x0000000006572000-memory.dmp

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memory/1920-38-0x0000000075010000-0x00000000757C0000-memory.dmp

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memory/1920-37-0x0000000005B10000-0x0000000005B76000-memory.dmp

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memory/1920-28-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/1920-36-0x000000007501E000-0x000000007501F000-memory.dmp

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memory/1920-35-0x0000000075010000-0x00000000757C0000-memory.dmp

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memory/2808-26-0x000001A3EE1C0000-0x000001A3EE1D0000-memory.dmp

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memory/2808-0-0x00007FFCF6543000-0x00007FFCF6545000-memory.dmp

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memory/2808-32-0x00007FFCF6540000-0x00007FFCF7001000-memory.dmp

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memory/2808-31-0x000001A3EDE80000-0x000001A3EE09C000-memory.dmp

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memory/2808-13-0x000001A3EE350000-0x000001A3EE3A6000-memory.dmp

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memory/2808-10-0x000001A3EE1D0000-0x000001A3EE1F2000-memory.dmp

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memory/2808-11-0x00007FFCF6540000-0x00007FFCF7001000-memory.dmp

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memory/2808-12-0x00007FFCF6540000-0x00007FFCF7001000-memory.dmp

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