xworm | a53027bb381f803178f6cac0a279c2446ea21377fa803ae138a1ec95f2c4f2a1

Analysis

max time kernel
149s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
29/05/2024, 15:08

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General

Target
читы.exe
Size 91KB
Sample240529-sh2nlsag97
SHA256 a53027bb381f803178f6cac0a279c2446ea21377fa803ae138a1ec95f2c4f2a1
MD5 64bd1dedc7d25d68a8fd078c86eda45e
SHA1 30e7fa276dd673376458640af9f7218233af2738
SHA512 4beb257bd00ece521821b179cb66f0e69badb39142a21fff041601f485d73d3a3708500f99b73674336036c281ada834e37f1133821ce296c530e4cc8eeea63c
SSDEEP 1536:2I4JpuzL5+kF/PG3oBh+bUEZajv1J4uo6WoXOqaoPzU7/uoDjSBSc7UtYV0:2ozQ3y+bUEM1J4lIOZCQ1W0cgte0
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

19.ip.gl.ply.gg:65468
speed-wheat.gl.at.ply.gg:65468
XWorm V5.2:123

Attributes

Install_directory
%AppData%
install_file
Delta.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/228-1-0x0000000000860000-0x000000000087E000-memory.dmp	family_xworm
behavioral2/files/0x0008000000022990-58.dat	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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
4836	powershell.exe
556	powershell.exe
4996	powershell.exe
3940	powershell.exe

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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	читы.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 3 IoCs

pid	Process
4844	Delta.exe
5092	Delta.exe
3804	Delta.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Delta = "C:\\Users\\Admin\\AppData\\Roaming\\Delta.exe"	читы.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
4128	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
556	powershell.exe
556	powershell.exe
4996	powershell.exe
4996	powershell.exe
3940	powershell.exe
3940	powershell.exe
4836	powershell.exe
4836	powershell.exe
228	читы.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	228	читы.exe
Token: SeDebugPrivilege	556	powershell.exe
Token: SeDebugPrivilege	4996	powershell.exe
Token: SeDebugPrivilege	3940	powershell.exe
Token: SeDebugPrivilege	4836	powershell.exe
Token: SeDebugPrivilege	228	читы.exe
Token: SeDebugPrivilege	4844	Delta.exe
Token: SeDebugPrivilege	5092	Delta.exe
Token: SeDebugPrivilege	3804	Delta.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
228	читы.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 228 wrote to memory of 556	228	читы.exe	91
PID 228 wrote to memory of 556	228	читы.exe	91
PID 228 wrote to memory of 4996	228	читы.exe	95
PID 228 wrote to memory of 4996	228	читы.exe	95
PID 228 wrote to memory of 3940	228	читы.exe	98
PID 228 wrote to memory of 3940	228	читы.exe	98
PID 228 wrote to memory of 4836	228	читы.exe	100
PID 228 wrote to memory of 4836	228	читы.exe	100
PID 228 wrote to memory of 4128	228	читы.exe	102
PID 228 wrote to memory of 4128	228	читы.exe	102

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\читы.exe
"C:\Users\Admin\AppData\Local\Temp\читы.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:228
- 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\читы.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:556
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'читы.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4996
- 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\Delta.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3940
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Delta.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4836
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Delta" /tr "C:\Users\Admin\AppData\Roaming\Delta.exe"
  2⤵
  - Creates scheduled task(s)
  PID:4128

C:\Users\Admin\AppData\Roaming\Delta.exe
C:\Users\Admin\AppData\Roaming\Delta.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4844

C:\Users\Admin\AppData\Roaming\Delta.exe
C:\Users\Admin\AppData\Roaming\Delta.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5092

C:\Users\Admin\AppData\Roaming\Delta.exe
C:\Users\Admin\AppData\Roaming\Delta.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Delta.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Delta.exe.log
Size 654B
SHA256 e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
MD5 2ff39f6c7249774be85fd60a8f9a245e
SHA1 684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA512 1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
MD5 SHA1 SHA512

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powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 8ef7a682dfd99ff5b7e9de0e1be43f0016d68695a43c33c028af2635cc15ecfe
MD5 440cb38dbee06645cc8b74d51f6e5f71
SHA1 d7e61da91dc4502e9ae83281b88c1e48584edb7c
SHA512 3aab19578535e6ba0f6beb5690c87d970292100704209d2dcebddcdd46c6bead27588ef5d98729bfd50606a54cc1edf608b3d15bef42c13b9982aaaf15de7fd6
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 5eb2ec3df52dbc0b6404dc0fb61f76fc4cd510f56a799140fdece2e626da6142
MD5 1ca947063bf8c58838fa7455bd0b36d6
SHA1 045ce9620e4c4df8225e72dd1f5e6a3e2b977e53
SHA512 5e20dc999d0103d9927ab3ea3c272977e74cb0b63c0e533b9ea20094713155a4cd7d918dce6f50ccc6a3c6217439ae6bca87f44c6fc5752f9107a0e1efb8601b
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 63d2688b92da4d1bb69980b7998b9be1595dd9e53951434a9414d019c4f825a7
MD5 c08aea9c78561a5f00398a723fdf2925
SHA1 2c880cbb5d02169a86bb9517ce2a0184cb177c6e
SHA512 d30db2f55bbda7102ffe90520d233355633313dcc77cdb69a26fdbb56e59dd41793def23d69dc5dc3f94c5bd41d3c26b3628886fd2edbed2df0b332e9a21f95c
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 263d9b98a897d1d66da4832af640c4bf5ab0ae91125ba12243453dfe714f3d0d
MD5 51cf8df21f531e31f7740b4ec487a48a
SHA1 40c6a73b22d71625a62df109aefc92a5f9b9d13e
SHA512 57a85461f6ea96b26a8b53d3a9cca18543e4ddbe996e8f412fc4cf7cf6e9ffe558c96da7b322a42f18bef62020e65aee119bed6102f75e2f605df09b02ec6368
MD5 SHA1 SHA512

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__PSScriptPolicyTest_kcckhv3k.dqp.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kcckhv3k.dqp.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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Delta.exe

Path C:\Users\Admin\AppData\Roaming\Delta.exe
Size 91KB
SHA256 a53027bb381f803178f6cac0a279c2446ea21377fa803ae138a1ec95f2c4f2a1
MD5 64bd1dedc7d25d68a8fd078c86eda45e
SHA1 30e7fa276dd673376458640af9f7218233af2738
SHA512 4beb257bd00ece521821b179cb66f0e69badb39142a21fff041601f485d73d3a3708500f99b73674336036c281ada834e37f1133821ce296c530e4cc8eeea63c
SSDEEP 1536:2I4JpuzL5+kF/PG3oBh+bUEZajv1J4uo6WoXOqaoPzU7/uoDjSBSc7UtYV0:2ozQ3y+bUEM1J4lIOZCQ1W0cgte0
MD5 SHA1 SHA512 SSDEEP

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memory/228-56-0x00007FF8010B0000-0x00007FF801B71000-memory.dmp

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memory/228-0-0x00007FF8010B3000-0x00007FF8010B5000-memory.dmp

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memory/228-57-0x00007FF8010B3000-0x00007FF8010B5000-memory.dmp

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memory/228-61-0x00007FF8010B0000-0x00007FF801B71000-memory.dmp

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memory/228-1-0x0000000000860000-0x000000000087E000-memory.dmp

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memory/556-17-0x00007FF8010B0000-0x00007FF801B71000-memory.dmp

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memory/556-14-0x00007FF8010B0000-0x00007FF801B71000-memory.dmp

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memory/556-13-0x00007FF8010B0000-0x00007FF801B71000-memory.dmp

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memory/556-12-0x00007FF8010B0000-0x00007FF801B71000-memory.dmp

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memory/556-11-0x000001E4EDF80000-0x000001E4EDFA2000-memory.dmp

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