Analysis
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max time kernel
120s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20250410-en -
resource tags
arch:x64arch:x86image:win10v2004-20250410-enlocale:en-usos:windows10-2004-x64system -
submitted
22/04/2025, 17:41
Static task
static1
Behavioral task
behavioral1
Sample
538d321fa6e0fae3d2e7b1a41834208f55e3f81572f8e26058f52d665c87bbb6.exe
Resource
win10v2004-20250410-en
General
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Target
538d321fa6e0fae3d2e7b1a41834208f55e3f81572f8e26058f52d665c87bbb6.exe
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Size
1.4MB
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MD5
bf6bbdc60d441d65ab49df5b236e53a7
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SHA1
42648a5a921e3374ba762e2c8da78bdf9a65a250
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SHA256
538d321fa6e0fae3d2e7b1a41834208f55e3f81572f8e26058f52d665c87bbb6
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SHA512
5b25139ef1ea73a0205b8d5f2505f0b6cdf51b486db09700b793be46b112aa3d57ef6d990a0cfe472905a55763f2c7ff34648fe4c90576ad190eb00cf6ace6b0
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SSDEEP
24576:F39WaOyHutimZ9VSly2hVvHW6qMnSbTBBhBMN:598HPkVOBTK
Malware Config
Signatures
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resource yara_rule behavioral1/memory/5256-0-0x0000000010000000-0x000000001019F000-memory.dmp purplefox_rootkit behavioral1/memory/5296-11-0x0000000010000000-0x000000001019F000-memory.dmp purplefox_rootkit -
Gh0st RAT payload 2 IoCs
resource yara_rule behavioral1/memory/5256-0-0x0000000010000000-0x000000001019F000-memory.dmp family_gh0strat behavioral1/memory/5296-11-0x0000000010000000-0x000000001019F000-memory.dmp family_gh0strat -
Gh0strat family
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Purplefox family
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Drops file in Drivers directory 1 IoCs
description ioc Process File created C:\Windows\system32\drivers\QAssist.sys Telegram.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys" Telegram.exe -
Executes dropped EXE 2 IoCs
pid Process 5296 Telegram.exe 3288 Telegram.exe -
Enumerates connected drives 3 TTPs 22 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\N: Telegram.exe File opened (read-only) \??\R: Telegram.exe File opened (read-only) \??\U: Telegram.exe File opened (read-only) \??\Y: Telegram.exe File opened (read-only) \??\Z: Telegram.exe File opened (read-only) \??\E: Telegram.exe File opened (read-only) \??\H: Telegram.exe File opened (read-only) \??\I: Telegram.exe File opened (read-only) \??\L: Telegram.exe File opened (read-only) \??\X: Telegram.exe File opened (read-only) \??\K: Telegram.exe File opened (read-only) \??\M: Telegram.exe File opened (read-only) \??\P: Telegram.exe File opened (read-only) \??\Q: Telegram.exe File opened (read-only) \??\S: Telegram.exe File opened (read-only) \??\W: Telegram.exe File opened (read-only) \??\G: Telegram.exe File opened (read-only) \??\J: Telegram.exe File opened (read-only) \??\O: Telegram.exe File opened (read-only) \??\T: Telegram.exe File opened (read-only) \??\V: Telegram.exe File opened (read-only) \??\B: Telegram.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\Telegram.exe 538d321fa6e0fae3d2e7b1a41834208f55e3f81572f8e26058f52d665c87bbb6.exe File opened for modification C:\Windows\SysWOW64\Telegram.exe 538d321fa6e0fae3d2e7b1a41834208f55e3f81572f8e26058f52d665c87bbb6.exe -
System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 538d321fa6e0fae3d2e7b1a41834208f55e3f81572f8e26058f52d665c87bbb6.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Telegram.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Telegram.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 5600 PING.EXE 4300 cmd.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 Telegram.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz Telegram.exe -
Modifies data under HKEY_USERS 5 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum Telegram.exe Key created \REGISTRY\USER\.DEFAULT\Software Telegram.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft Telegram.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie Telegram.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7" Telegram.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 5600 PING.EXE -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe 3288 Telegram.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 3288 Telegram.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 5256 538d321fa6e0fae3d2e7b1a41834208f55e3f81572f8e26058f52d665c87bbb6.exe Token: SeLoadDriverPrivilege 3288 Telegram.exe Token: 33 3288 Telegram.exe Token: SeIncBasePriorityPrivilege 3288 Telegram.exe Token: 33 3288 Telegram.exe Token: SeIncBasePriorityPrivilege 3288 Telegram.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 5256 wrote to memory of 4300 5256 538d321fa6e0fae3d2e7b1a41834208f55e3f81572f8e26058f52d665c87bbb6.exe 85 PID 5256 wrote to memory of 4300 5256 538d321fa6e0fae3d2e7b1a41834208f55e3f81572f8e26058f52d665c87bbb6.exe 85 PID 5256 wrote to memory of 4300 5256 538d321fa6e0fae3d2e7b1a41834208f55e3f81572f8e26058f52d665c87bbb6.exe 85 PID 5296 wrote to memory of 3288 5296 Telegram.exe 86 PID 5296 wrote to memory of 3288 5296 Telegram.exe 86 PID 5296 wrote to memory of 3288 5296 Telegram.exe 86 PID 4300 wrote to memory of 5600 4300 cmd.exe 88 PID 4300 wrote to memory of 5600 4300 cmd.exe 88 PID 4300 wrote to memory of 5600 4300 cmd.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\538d321fa6e0fae3d2e7b1a41834208f55e3f81572f8e26058f52d665c87bbb6.exe"C:\Users\Admin\AppData\Local\Temp\538d321fa6e0fae3d2e7b1a41834208f55e3f81572f8e26058f52d665c87bbb6.exe"1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5256 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\538D32~1.EXE > nul2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:4300 -
C:\Windows\SysWOW64\PING.EXEping -n 2 127.0.0.13⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:5600
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C:\Windows\SysWOW64\Telegram.exeC:\Windows\SysWOW64\Telegram.exe -auto1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5296 -
C:\Windows\SysWOW64\Telegram.exeC:\Windows\SysWOW64\Telegram.exe -acsi2⤵
- Drops file in Drivers directory
- Sets service image path in registry
- Executes dropped EXE
- Enumerates connected drives
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
PID:3288
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Network
MITRE ATT&CK Enterprise v16
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
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Filesize
1.4MB
MD5bf6bbdc60d441d65ab49df5b236e53a7
SHA142648a5a921e3374ba762e2c8da78bdf9a65a250
SHA256538d321fa6e0fae3d2e7b1a41834208f55e3f81572f8e26058f52d665c87bbb6
SHA5125b25139ef1ea73a0205b8d5f2505f0b6cdf51b486db09700b793be46b112aa3d57ef6d990a0cfe472905a55763f2c7ff34648fe4c90576ad190eb00cf6ace6b0