xworm | a53027bb381f803178f6cac0a279c2446ea21377fa803ae138a1ec95f2c4f2a1

Analysis

max time kernel
147s
max time network
148s
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, 15:21

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General

Target
читы.exe
Size 91KB
Sample240529-srekfabb25
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/5112-0-0x0000000000A80000-0x0000000000A9E000-memory.dmp	family_xworm
behavioral2/files/0x000a0000000232ed-57.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
704	powershell.exe
872	powershell.exe
2596	powershell.exe
2416	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-1-5-21-1181767204-2009306918-3718769404-1000\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 2 IoCs

pid	Process
4672	Delta.exe
4028	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-1-5-21-1181767204-2009306918-3718769404-1000\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
4144	schtasks.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
704	powershell.exe
704	powershell.exe
704	powershell.exe
872	powershell.exe
872	powershell.exe
872	powershell.exe
2596	powershell.exe
2596	powershell.exe
2596	powershell.exe
2416	powershell.exe
2416	powershell.exe
2416	powershell.exe
5112	читы.exe
5112	читы.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	5112	читы.exe
Token: SeDebugPrivilege	704	powershell.exe
Token: SeDebugPrivilege	872	powershell.exe
Token: SeDebugPrivilege	2596	powershell.exe
Token: SeDebugPrivilege	2416	powershell.exe
Token: SeDebugPrivilege	5112	читы.exe
Token: SeDebugPrivilege	4672	Delta.exe
Token: SeDebugPrivilege	4028	Delta.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5112	читы.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5112 wrote to memory of 704	5112	читы.exe	93
PID 5112 wrote to memory of 704	5112	читы.exe	93
PID 5112 wrote to memory of 872	5112	читы.exe	95
PID 5112 wrote to memory of 872	5112	читы.exe	95
PID 5112 wrote to memory of 2596	5112	читы.exe	97
PID 5112 wrote to memory of 2596	5112	читы.exe	97
PID 5112 wrote to memory of 2416	5112	читы.exe	99
PID 5112 wrote to memory of 2416	5112	читы.exe	99
PID 5112 wrote to memory of 4144	5112	читы.exe	102
PID 5112 wrote to memory of 4144	5112	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:5112
- 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:704
- 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:872
- 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:2596
- 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:2416
- 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:4144

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4208,i,11266875042087428226,16669718873272757238,262144 --variations-seed-version --mojo-platform-channel-handle=4120 /prefetch:8
1⤵
PID:2620

C:\Users\Admin\AppData\Roaming\Delta.exe
C:\Users\Admin\AppData\Roaming\Delta.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4672

C:\Users\Admin\AppData\Roaming\Delta.exe
C:\Users\Admin\AppData\Roaming\Delta.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4028

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 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 ab075b491d20c6f66c7bd40b57538c1cfdaab5aac4715bfe3bbc7f4745860a74
MD5 3b444d3f0ddea49d84cc7b3972abe0e6
SHA1 0a896b3808e68d5d72c2655621f43b0b2c65ae02
SHA512 eb0ab5d68472ec42de4c9b6d84306d7bca3874be1d0ac572030a070f21a698432418068e1a6006ff88480be8c8f54c769dee74b2def403f734109dba7261f36b
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 be96c91b62ba9ba7072ab89e66543328c9e4395150f9dbe8067332d94a3ecc61
MD5 9c740b7699e2363ac4ecdf496520ca35
SHA1 aa8691a8c56500d82c5fc8c35209bc6fe50ab1d9
SHA512 8885683f96353582eb871209e766e7eba1a72a2837ce27ea298b7b5b169621d1fa3fce25346b6bfd258b52642644234da9559d4e765a2023a5a5fc1f544cc7af
MD5 SHA1 SHA512

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__PSScriptPolicyTest_40evwf5d.c4x.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_40evwf5d.c4x.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/704-3-0x00007FFEBC090000-0x00007FFEBC359000-memory.dmp

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memory/704-16-0x00007FFEBC090000-0x00007FFEBC359000-memory.dmp

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memory/704-4-0x000002AC66FA0000-0x000002AC66FC2000-memory.dmp

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memory/704-2-0x00007FFEBC090000-0x00007FFEBC359000-memory.dmp

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memory/5112-0-0x0000000000A80000-0x0000000000A9E000-memory.dmp

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memory/5112-55-0x00007FFEBC090000-0x00007FFEBC359000-memory.dmp

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memory/5112-56-0x00007FFEBC090000-0x00007FFEBC359000-memory.dmp

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memory/5112-1-0x00007FFEBC090000-0x00007FFEBC359000-memory.dmp

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