xworm | 2fab71d50a3b02c3729bde4f28e489b2346aac1829c467e19284741d34f0cf03

General

Target

A.exe
Size

50KB
MD5

a0de54573621a87cd95ce56ce7ab7a43
SHA1

c3d84eddaffcb63943627e4ba00c3c58200e4da3
SHA256

2fab71d50a3b02c3729bde4f28e489b2346aac1829c467e19284741d34f0cf03
SHA512

85606cdd15e70a067475f9f4352d98dd054228a56da7c22e69d88c91a8371dbfdbc2bb391c0d4118e4bd7a2e3e28a060887b4c28ba95c76c8757a184fcc7915c
SSDEEP

1536:Hf05a/CTjuX89IFc9Uy68OMNGadS1EAd8IIA:Hf05a/CTKM9IFc9U4OM9gEA6IIA

Score

10^/10

xworm rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

85.203.4.127:1474

Mutex

i1kB13VVw1GEf0Fq

Attributes

Install_directory
%ProgramData%
install_file
VLC_Media.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3036-0-0x0000000000550000-0x0000000000562000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

A.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation A.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation	A.exe

Drops startup file 2 IoCs

Processes:

A.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\VLC_Media.lnk	A.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\VLC_Media.lnk	A.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.

Processes:

flow ioc

12 ip-api.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

flow	ioc
12	ip-api.com

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exeA.exe

pid	process
5068	powershell.exe
5068	powershell.exe
2924	powershell.exe
2924	powershell.exe
4036	powershell.exe
4036	powershell.exe
4616	powershell.exe
4616	powershell.exe
3036	A.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

A.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	3036	A.exe
Token: SeDebugPrivilege	5068	powershell.exe
Token: SeDebugPrivilege	2924	powershell.exe
Token: SeDebugPrivilege	4036	powershell.exe
Token: SeDebugPrivilege	4616	powershell.exe
Token: SeDebugPrivilege	3036	A.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

A.exe

pid process

3036 A.exe

pid	process
3036	A.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

A.exe

description	pid	process	target process
PID 3036 wrote to memory of 5068	3036	A.exe	powershell.exe
PID 3036 wrote to memory of 5068	3036	A.exe	powershell.exe
PID 3036 wrote to memory of 2924	3036	A.exe	powershell.exe
PID 3036 wrote to memory of 2924	3036	A.exe	powershell.exe
PID 3036 wrote to memory of 4036	3036	A.exe	powershell.exe
PID 3036 wrote to memory of 4036	3036	A.exe	powershell.exe
PID 3036 wrote to memory of 4616	3036	A.exe	powershell.exe
PID 3036 wrote to memory of 4616	3036	A.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\A.exe
"C:\Users\Admin\AppData\Local\Temp\A.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3036

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\A.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5068

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'A.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2924

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\VLC_Media.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4036

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'VLC_Media.exe'
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4616

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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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
e60eb305a7b2d9907488068b7065abd3

SHA1
1643dd7f915ac50c75bc01c53d68c5dafb9ce28d

SHA256
ad07460e061642c0dd4e7dfa7b821aacce873e290389e72f708e9f3504f9d135

SHA512
95c45afec6fa4e0b2a21edd10a6b2dc30568810c67bc9bc34d98ab111c48261f377a370583adb27e08616b0108026c119493b1b093b52ce931117e646b46cb7b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
944B

MD5
cae60f0ddddac635da71bba775a2c5b4

SHA1
386f1a036af61345a7d303d45f5230e2df817477

SHA256
b2dd636b7b0d3bfe44cef5e1175828b1fa7bd84d5563f54342944156ba996c16

SHA512
28ed8a8bc132ef56971cfd7b517b17cdb74a7f8c247ef6bff232996210075e06aa58a415825a1e038cfb547ad3dc6882bf1ca1b68c5b360ef0512a1440850253

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_odg2wgfx.avd.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2924-34-0x00007FFB61CB0000-0x00007FFB62771000-memory.dmp

Filesize
10.8MB

Download
memory/2924-29-0x00007FFB61CB0000-0x00007FFB62771000-memory.dmp

Filesize
10.8MB

Download
memory/2924-30-0x000002054BF00000-0x000002054BF10000-memory.dmp

Filesize
64KB

Download
memory/2924-31-0x000002054BF00000-0x000002054BF10000-memory.dmp

Filesize
64KB

Download
memory/3036-70-0x000000001B230000-0x000000001B240000-memory.dmp

Filesize
64KB

Download
memory/3036-69-0x00007FFB61CB0000-0x00007FFB62771000-memory.dmp

Filesize
10.8MB

Download
memory/3036-0-0x0000000000550000-0x0000000000562000-memory.dmp

Filesize
72KB

Download
memory/3036-2-0x000000001B230000-0x000000001B240000-memory.dmp

Filesize
64KB

Download
memory/3036-1-0x00007FFB61CB0000-0x00007FFB62771000-memory.dmp

Filesize
10.8MB

Download
memory/4036-46-0x00000246B9D30000-0x00000246B9D40000-memory.dmp

Filesize
64KB

Download
memory/4036-41-0x00000246B9D30000-0x00000246B9D40000-memory.dmp

Filesize
64KB

Download
memory/4036-35-0x00007FFB61CB0000-0x00007FFB62771000-memory.dmp

Filesize
10.8MB

Download
memory/4036-49-0x00007FFB61CB0000-0x00007FFB62771000-memory.dmp

Filesize
10.8MB

Download
memory/4616-61-0x000001D9EF410000-0x000001D9EF420000-memory.dmp

Filesize
64KB

Download
memory/4616-60-0x00007FFB61CB0000-0x00007FFB62771000-memory.dmp

Filesize
10.8MB

Download
memory/4616-62-0x000001D9EF410000-0x000001D9EF420000-memory.dmp

Filesize
64KB

Download
memory/4616-64-0x00007FFB61CB0000-0x00007FFB62771000-memory.dmp

Filesize
10.8MB

Download
memory/5068-18-0x00007FFB61CB0000-0x00007FFB62771000-memory.dmp

Filesize
10.8MB

Download
memory/5068-15-0x000001BF492B0000-0x000001BF492C0000-memory.dmp

Filesize
64KB

Download
memory/5068-14-0x000001BF492B0000-0x000001BF492C0000-memory.dmp

Filesize
64KB

Download
memory/5068-13-0x000001BF30DB0000-0x000001BF30DD2000-memory.dmp

Filesize
136KB

Download
memory/5068-12-0x00007FFB61CB0000-0x00007FFB62771000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads