xworm | 12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9

General

Target

12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe
Size

315KB
MD5

e16acddcf30e48f1a412228269ec7ee0
SHA1

c431b49d1a8c7154a90fff36f97ff28497d1e690
SHA256

12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9
SHA512

2894d2e44307386aa7c23ae0093a600247b2bc1d5f0342e48fdce05a52adbe4419c64b6de15105ba942130176078773d4e091a212763151f02f9871b62a42e16
SSDEEP

3072:ktHIcvIdsE+iSmphsQvPb0dwG3birtHcn0UwGqtUH//F+oYoQN:kx131M5GOdtUHMaQ

Score

10^/10

xworm discovery rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

185.7.214.108:4411

185.7.214.54:4411

aes.plain

Signatures

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral2/files/0x000200000001e91d-14.dat	family_xworm
behavioral2/memory/4908-15-0x00000000051C0000-0x00000000051D0000-memory.dmp	family_xworm
behavioral2/memory/1188-17-0x0000000000400000-0x000000000040E000-memory.dmp	family_xworm

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4908 set thread context of 1188	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	95

System Location Discovery: System Language Discovery 1 TTPs 4 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	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe
4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe
4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe
4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe
Token: SeDebugPrivilege	1188	MSBuild.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 4908 wrote to memory of 4044	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	90
PID 4908 wrote to memory of 4044	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	90
PID 4908 wrote to memory of 4044	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	90
PID 4044 wrote to memory of 2940	4044	csc.exe	92
PID 4044 wrote to memory of 2940	4044	csc.exe	92
PID 4044 wrote to memory of 2940	4044	csc.exe	92
PID 4908 wrote to memory of 5100	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	93
PID 4908 wrote to memory of 5100	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	93
PID 4908 wrote to memory of 5100	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	93
PID 4908 wrote to memory of 2416	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	94
PID 4908 wrote to memory of 2416	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	94
PID 4908 wrote to memory of 2416	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	94
PID 4908 wrote to memory of 1188	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	95
PID 4908 wrote to memory of 1188	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	95
PID 4908 wrote to memory of 1188	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	95
PID 4908 wrote to memory of 1188	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	95
PID 4908 wrote to memory of 1188	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	95
PID 4908 wrote to memory of 1188	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	95
PID 4908 wrote to memory of 1188	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	95
PID 4908 wrote to memory of 1188	4908	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	95

C:\Users\Admin\AppData\Local\Temp\12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe
"C:\Users\Admin\AppData\Local\Temp\12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4908
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\o5xbfway\o5xbfway.cmdline"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4044
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESAE51.tmp" "c:\Users\Admin\AppData\Local\Temp\o5xbfway\CSC65D34AC69EAE4EAF948143B7CC95C71F.TMP"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2940
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:5100
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:2416
- 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:1188

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\RESAE51.tmp

Filesize
1KB

MD5
2472f1b70fdda589eff658d3659bddb0

SHA1
d7097f5a45e3b24958aa7d27c3226a585bdcf738

SHA256
c6e09ce70311be28c389bcf4aa1dd2e929cb6d1cbec38520451520c5e35051bb

SHA512
aea1e716107f7c32d91d19c40fe66a6cc5cd2ad8c678bcfc0665eab2a295093e13c27ed47f5df049a4a89e237239dc16479837ee00b462a0e02476ace5ea5355

Download Submit
C:\Users\Admin\AppData\Local\Temp\o5xbfway\o5xbfway.dll

Filesize
41KB

MD5
12831141e767238385bfa9b7b0d1ca6d

SHA1
06693251dadcc0fc9d790a7de383081afe85b464

SHA256
b25b12d540882cae621fd8ba27417a0eaf4bd7e5d94775568ea18ab6b63437f9

SHA512
556d39f49aab7ae2d775243c509f72768f9d4107aa106251427e01a8d66dbbd30a43e3421150db0aaf7fa9b6f2cde2774aea3adc1d37b76f333c2e39d0f435f6

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\o5xbfway\CSC65D34AC69EAE4EAF948143B7CC95C71F.TMP

Filesize
652B

MD5
f1eb585e7a1c6c99b7bef0b1c838340a

SHA1
3701ac50d8b355a617a9f2126f562e5c9061c1a4

SHA256
4bcc20e65b6e0e165bed302afe763864e062d0d861022e38df5214088378ede4

SHA512
00953c512468e3dc4f8cc266dc5c9a12c0805b5d8956b00dad029bc3a508b4b89d300e9364a2cf0893f3df912581a19ee797c780f5aab55dc4de3d26fe7404c8

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\o5xbfway\o5xbfway.0.cs

Filesize
101KB

MD5
fcb83d623452e1cafbc3b0ad5b3b5b73

SHA1
abc26af231584f50ca2ae6de25d4c4764eaf7a9f

SHA256
d4e8ff661b3125613fadc869675cf7c01909b4d64d06344ab2b632ab7ba1e4cc

SHA512
41a233e55bca274c0c3d2fe1c6474306cb17f273bc70e7b1224603b91d17314eb3709c2cbddf2e30d5caafb4b94eb18e8b7ea7d11b19612bf1b5fa80fa9dd3d8

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\o5xbfway\o5xbfway.cmdline

Filesize
204B

MD5
1f82fcd1d2e7cf9c7f28015df138f6b7

SHA1
cc4ddccc826300997766e755638e2981271ba28d

SHA256
1081cb6001d8b5a58eae78028e8369f79bf55e5b52970937ee99a42963b7972c

SHA512
3a2b89bbd0ef75543b9e49126f323899607e3c7cc93904517a265a8f9d85461a055287fc6150b552cb3f4b70e17d9d3f6be86a8c64b2bac27bfa762130331706

Download Submit
memory/1188-21-0x0000000005160000-0x00000000051FC000-memory.dmp

Filesize
624KB

Download
memory/1188-24-0x0000000005790000-0x00000000057F6000-memory.dmp

Filesize
408KB

Download
memory/1188-27-0x00000000067D0000-0x0000000006D74000-memory.dmp

Filesize
5.6MB

Download
memory/1188-26-0x0000000006180000-0x0000000006212000-memory.dmp

Filesize
584KB

Download
memory/1188-17-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1188-25-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/1188-20-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/1188-23-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/1188-22-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/4908-0-0x000000007534E000-0x000000007534F000-memory.dmp

Filesize
4KB

Download
memory/4908-5-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/4908-19-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/4908-15-0x00000000051C0000-0x00000000051D0000-memory.dmp

Filesize
64KB

Download
memory/4908-1-0x0000000000880000-0x00000000008D4000-memory.dmp

Filesize
336KB

Download

Analysis

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