xworm | 63d46c697ee100fbe7388416033ea0509130e12f144decb1a913e3dc8b82f6ba

Analysis

max time kernel
149s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
28/04/2023, 09:28

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General

Target
8018e9f1a6e6f4c6ad0475f255474d89.exe
Size 74KB
Sample230428-lfbk3sfa6t
SHA256 63d46c697ee100fbe7388416033ea0509130e12f144decb1a913e3dc8b82f6ba
MD5 8018e9f1a6e6f4c6ad0475f255474d89
SHA1 e5b1be6b030bdbfe7dd7706145f237b130572b11
SHA512 ee75e9a4173b718e97029ae2bccca37ebd42b574be5b78ffd286b1d1d2f8868c8d96bc40e6c9684b02ce7f715696aefa4f391451eccf4badee5bdb38f22376b6
SSDEEP 1536:gG8k7WdwS9Ayi4BDbDbFr+lUfjZbvkm+X/f5G3u6dptnO91BWmKA/Di8:gG8kowDyicDbFaa7Zb8FH83JnO91cmK8
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm rat trojan

Malware Config

Extracted

Family

xworm

16.16.96.108:4449

Attributes

install_file
USB.exe

Signatures

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	8018e9f1a6e6f4c6ad0475f255474d89.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8018e9f1a6e6f4c6ad0475f255474d89.lnk	8018e9f1a6e6f4c6ad0475f255474d89.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\8018e9f1a6e6f4c6ad0475f255474d89.lnk	8018e9f1a6e6f4c6ad0475f255474d89.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2000	powershell.exe
2000	powershell.exe
848	powershell.exe
848	powershell.exe
1916	powershell.exe
1916	powershell.exe
2436	8018e9f1a6e6f4c6ad0475f255474d89.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2436	8018e9f1a6e6f4c6ad0475f255474d89.exe
Token: SeDebugPrivilege	2000	powershell.exe
Token: SeDebugPrivilege	848	powershell.exe
Token: SeDebugPrivilege	1916	powershell.exe
Token: SeDebugPrivilege	2436	8018e9f1a6e6f4c6ad0475f255474d89.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2436	8018e9f1a6e6f4c6ad0475f255474d89.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2436 wrote to memory of 2000	2436	8018e9f1a6e6f4c6ad0475f255474d89.exe	82
PID 2436 wrote to memory of 2000	2436	8018e9f1a6e6f4c6ad0475f255474d89.exe	82
PID 2436 wrote to memory of 848	2436	8018e9f1a6e6f4c6ad0475f255474d89.exe	86
PID 2436 wrote to memory of 848	2436	8018e9f1a6e6f4c6ad0475f255474d89.exe	86
PID 2436 wrote to memory of 1916	2436	8018e9f1a6e6f4c6ad0475f255474d89.exe	89
PID 2436 wrote to memory of 1916	2436	8018e9f1a6e6f4c6ad0475f255474d89.exe	89

C:\Users\Admin\AppData\Local\Temp\8018e9f1a6e6f4c6ad0475f255474d89.exe
"C:\Users\Admin\AppData\Local\Temp\8018e9f1a6e6f4c6ad0475f255474d89.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:2436
- 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\8018e9f1a6e6f4c6ad0475f255474d89.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2000
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '8018e9f1a6e6f4c6ad0475f255474d89.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:848
- 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\8018e9f1a6e6f4c6ad0475f255474d89.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1916

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c
MD5 6d42b6da621e8df5674e26b799c8e2aa
SHA1 ab3ce1327ea1eeedb987ec823d5e0cb146bafa48
SHA512 53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 1359d6daeaed2f254b162914203c891b23139cc236a3bf75c2dfcbe26265c84a
MD5 e3161f4edbc9b963debe22e29658050b
SHA1 45dbf88dadafe5dd1cfee1e987c8a219d3208cdb
SHA512 006ffb8f37d1f77f8ee79b22ffa413819f565d62773c632b70985759572121c6ab4743139d16d885f8c0ff9d0e0b136686741728b3e142ee54aea3bb733dffb2
MD5 SHA1 SHA512

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__PSScriptPolicyTest_kau1nye2.ld1.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kau1nye2.ld1.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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memory/1916-169-0x000002342F520000-0x000002342F530000-memory.dmp

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memory/1916-175-0x000002342F520000-0x000002342F530000-memory.dmp

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memory/2000-134-0x000001F316C00000-0x000001F316C22000-memory.dmp

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memory/2436-133-0x00000000005C0000-0x00000000005D8000-memory.dmp

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memory/2436-174-0x0000000000DD0000-0x0000000000DE0000-memory.dmp

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memory/2436-176-0x0000000000DD0000-0x0000000000DE0000-memory.dmp

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