xworm | 8239e02a905f4bc9df11e1ed7e47bfb30dcf7913bb41ec4c438356b2c2c97f29

General

Target

LoaverV1.2.exe
Size

3.8MB
MD5

f44f322db262c3e905e70be9d73979fe
SHA1

23d5e5291e707599ffce178fdb8fa41f9ea34765
SHA256

8239e02a905f4bc9df11e1ed7e47bfb30dcf7913bb41ec4c438356b2c2c97f29
SHA512

a2e66bedad96ed84c13e1605bc23905d1ba4397ed77daffa53b95b235b25810c2e727147a8dfaeeb3d4667feaedb4ab920400572bfa777617e6b5db515036864
SSDEEP

98304:1ObtgYGzZZIzM2dVLKTLLvjNUYGvY34S87EwDB31Ntvn/nf5:1OeYGKxVLKTLFUFYISmP11Np/nf5

Score

10^/10

xworm execution rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

gold-blackberry.gl.at.ply.gg:17955

Mutex

94BeBAD1qG7r5xia

Attributes

Install_directory
%AppData%
install_file
XClient.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0007000000023cae-14.dat	family_xworm
behavioral2/memory/376-22-0x0000000000F70000-0x0000000000F80000-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
1444	powershell.exe
3456	powershell.exe
1116	powershell.exe
4080	powershell.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	LoaverV1.2.exe
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	svchost.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	svchost.exe

Executes dropped EXE 2 IoCs

pid	Process
2160	Full Option.exe
376	svchost.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
13	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1444	powershell.exe
1444	powershell.exe
3456	powershell.exe
3456	powershell.exe
1116	powershell.exe
1116	powershell.exe
4080	powershell.exe
4080	powershell.exe
376	svchost.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	376	svchost.exe
Token: SeDebugPrivilege	1444	powershell.exe
Token: SeDebugPrivilege	3456	powershell.exe
Token: SeDebugPrivilege	1116	powershell.exe
Token: SeDebugPrivilege	4080	powershell.exe
Token: SeDebugPrivilege	376	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
376	svchost.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4204 wrote to memory of 2160	4204	LoaverV1.2.exe	83
PID 4204 wrote to memory of 2160	4204	LoaverV1.2.exe	83
PID 4204 wrote to memory of 376	4204	LoaverV1.2.exe	84
PID 4204 wrote to memory of 376	4204	LoaverV1.2.exe	84
PID 376 wrote to memory of 1444	376	svchost.exe	88
PID 376 wrote to memory of 1444	376	svchost.exe	88
PID 376 wrote to memory of 3456	376	svchost.exe	90
PID 376 wrote to memory of 3456	376	svchost.exe	90
PID 376 wrote to memory of 1116	376	svchost.exe	92
PID 376 wrote to memory of 1116	376	svchost.exe	92
PID 376 wrote to memory of 4080	376	svchost.exe	94
PID 376 wrote to memory of 4080	376	svchost.exe	94

C:\Users\Admin\AppData\Local\Temp\LoaverV1.2.exe
"C:\Users\Admin\AppData\Local\Temp\LoaverV1.2.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4204
- C:\Users\Admin\AppData\Roaming\Full Option.exe
  "C:\Users\Admin\AppData\Roaming\Full Option.exe"
  2⤵
  - Executes dropped EXE
  PID:2160
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:376
- - 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\svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1444
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3456
- - 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'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1116
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4080

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

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
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
6d42b6da621e8df5674e26b799c8e2aa

SHA1
ab3ce1327ea1eeedb987ec823d5e0cb146bafa48

SHA256
5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c

SHA512
53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

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

Filesize
944B

MD5
ce4540390cc4841c8973eb5a3e9f4f7d

SHA1
2293f30a6f4c9538bc5b06606c10a50ab4ecef8e

SHA256
e834e1da338b9644d538cefd70176768816da2556939c1255d386931bd085105

SHA512
2a3e466cb5a81d2b65256053b768a98321eb3e65ff46353eefc9864f14a391748116f050e7482ddd73a51575bf0a6fc5c673023dade62dbd8b174442bae1cc6b

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

Filesize
944B

MD5
cbc41bceec6e8cf6d23f68d952487858

SHA1
f52edbceff042ded7209e8be90ec5e09086d62eb

SHA256
b97a8a2a5dbc3c1b994affa4751e61e1ac6bddcf336a4c77ee96a3ce07c59f4d

SHA512
0f025ea2559e477c56500b9f4ecc251325793629cf1ae8d43ad783f1036b830c51757274b0aa8bb3183ac636cdfc1e0e8be1163a45695b8fb57df98c362534fb

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5ghq3hc5.fkk.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Full Option.exe

Filesize
3.8MB

MD5
5ce8ed238099e7605f63e8b40f7525a0

SHA1
389d6db6a058cc747a3feaa65f58873920ebf062

SHA256
e11d8d9f672d2ffede92203385ba116683d0cb7d8a5e6ed62c8820f9701cee42

SHA512
a694687b07750c613dad7638451bff733147c092c6bfca48f5d02bcc51f7ecf76985563fea05844d21bf0ef006e84d9f8b82ab419618a7275550e4d6fa4e5ae1

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe

Filesize
40KB

MD5
2cef14fd024a2be578c7d5998a97f5ff

SHA1
d17a15dd93d2076318a7583296d7a764f29c3f48

SHA256
2dc85712320a3ac7b9a8550b623ebe0534c160a56a929d0bee285140ab8fdcd6

SHA512
37367f6fe53066ae850a8741b3a76ae73f011ec7a24f70a0cca9c2a5d880f8ea502952cc4a05503047d97780afb30294355c4fc67cde908a2f61a8ad4876c031

Download Submit
memory/376-23-0x00007FF81EA30000-0x00007FF81F4F1000-memory.dmp

Filesize
10.8MB

Download
memory/376-22-0x0000000000F70000-0x0000000000F80000-memory.dmp

Filesize
64KB

Download
memory/376-74-0x00007FF81EA30000-0x00007FF81F4F1000-memory.dmp

Filesize
10.8MB

Download
memory/376-75-0x000000001BBB0000-0x000000001BBBC000-memory.dmp

Filesize
48KB

Download
memory/1444-29-0x00000230A18D0000-0x00000230A18F2000-memory.dmp

Filesize
136KB

Download
memory/4204-0-0x00007FF81EA33000-0x00007FF81EA35000-memory.dmp

Filesize
8KB

Download
memory/4204-1-0x0000000000E30000-0x0000000001204000-memory.dmp

Filesize
3.8MB

Download

Analysis

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