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/0x000d000000023c72-14.dat	family_xworm
behavioral2/memory/2252-15-0x0000000000DE0000-0x0000000000DF0000-memory.dmp	family_xworm
behavioral2/memory/4900-17-0x0000000000400000-0x000000000040E000-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 2252 set thread context of 4900	2252	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	cvtres.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4900	MSBuild.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 1480	2252	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	91
PID 2252 wrote to memory of 1480	2252	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	91
PID 2252 wrote to memory of 1480	2252	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	91
PID 1480 wrote to memory of 4144	1480	csc.exe	93
PID 1480 wrote to memory of 4144	1480	csc.exe	93
PID 1480 wrote to memory of 4144	1480	csc.exe	93
PID 2252 wrote to memory of 4900	2252	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	95
PID 2252 wrote to memory of 4900	2252	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	95
PID 2252 wrote to memory of 4900	2252	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	95
PID 2252 wrote to memory of 4900	2252	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	95
PID 2252 wrote to memory of 4900	2252	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	95
PID 2252 wrote to memory of 4900	2252	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	95
PID 2252 wrote to memory of 4900	2252	12003cfc75b9d076590abcbe3f960e7b64114f229ace64497d28e260ca01a2b9.exe	95
PID 2252 wrote to memory of 4900	2252	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 use of WriteProcessMemory
PID:2252
- 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\jdliaaqv\jdliaaqv.cmdline"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1480
- - 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\RES2BCE.tmp" "c:\Users\Admin\AppData\Local\Temp\jdliaaqv\CSCF3CC7CF151B40BBA4A4D7B2561E75E0.TMP"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4144
- 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:4900

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\RES2BCE.tmp

Filesize
1KB

MD5
1546c6859119ea9c987a5958550307aa

SHA1
41850fd71145fadc155ed6458f531755c82bea26

SHA256
9d93d6919544da2727a450b61b4405d007bbdd2c48ec412d52c6c94966b6f1c9

SHA512
c9780f66dab6f34e4c2eaecbd9e5fd6d4322a9861a893a8dab281e5b58b66b3a4b83a7b34a92f1164b80f01f0b9e41739e1e4a573143fe4a8f5590526f07c854

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

Filesize
41KB

MD5
305866e376fa2ed1d39d0682f333bdf4

SHA1
025920060767198db291734e400836c8b36ab7b9

SHA256
45da3640628a6dbd34e4da76dad332daaf22a7167a5c6e1a67954012992e6ad9

SHA512
908d9a00a571b02258c62bc744ca159611382819be7b9e67f5a71b6fe1e7403f3bb9493950c5510e28ec0df0c8442a232444f3428fedbcbbd3591ddbd54c57c1

Download Submit
\??\c:\Users\Admin\AppData\Local\Temp\jdliaaqv\CSCF3CC7CF151B40BBA4A4D7B2561E75E0.TMP

Filesize
652B

MD5
28d8dddd79a7a11c6e30e204b50050d6

SHA1
a77704778eb78727bd075bc5c5c9a6fea9854590

SHA256
1679c6c197b6da1c08d49f8c9db0bd910fef3951b25ed341ae9d01e54cf4300f

SHA512
cff422c3d19eba33991019bcd92abaa07d8970cc1ad8bbf8f4fd5dac2710a6198d8d8007dd2c8677d441d259ac60765fdbaef6eb6dee3940a86e6fd79ebad369

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

Filesize
101KB

MD5
fcb83d623452e1cafbc3b0ad5b3b5b73

SHA1
abc26af231584f50ca2ae6de25d4c4764eaf7a9f

SHA256
d4e8ff661b3125613fadc869675cf7c01909b4d64d06344ab2b632ab7ba1e4cc

SHA512
41a233e55bca274c0c3d2fe1c6474306cb17f273bc70e7b1224603b91d17314eb3709c2cbddf2e30d5caafb4b94eb18e8b7ea7d11b19612bf1b5fa80fa9dd3d8

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

Filesize
204B

MD5
ddb12a5d504aaa0b505a630dbbd4424a

SHA1
521a24c741cca81857245c80ff73f00a21d53335

SHA256
cae2bde0617ec49b87c45457ab06e9b87e87d6bdf82f3bfe728ccae8a0d30c7c

SHA512
34eff272d7b501871799b438a8de85e6dbd9ca93f5c818ded8e8f90494eb3451ca7ce0d92ba2dc35aa9ccd6ac0ea5d0b5305dab3ee2745e91c522f9225ce1cf0

Download Submit
memory/2252-15-0x0000000000DE0000-0x0000000000DF0000-memory.dmp

Filesize
64KB

Download
memory/2252-19-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/2252-1-0x0000000000530000-0x0000000000584000-memory.dmp

Filesize
336KB

Download
memory/2252-0-0x0000000074EDE000-0x0000000074EDF000-memory.dmp

Filesize
4KB

Download
memory/2252-5-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/4900-21-0x0000000005560000-0x00000000055FC000-memory.dmp

Filesize
624KB

Download
memory/4900-20-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/4900-17-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/4900-22-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/4900-23-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/4900-24-0x0000000005C80000-0x0000000005CE6000-memory.dmp

Filesize
408KB

Download
memory/4900-25-0x0000000074ED0000-0x0000000075680000-memory.dmp

Filesize
7.7MB

Download
memory/4900-26-0x0000000006780000-0x0000000006812000-memory.dmp

Filesize
584KB

Download
memory/4900-27-0x0000000006DD0000-0x0000000007374000-memory.dmp

Filesize
5.6MB

Download

Analysis

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