farfli | bc62c860167a0e2bf1569fd6ede74d76e5c069801931516f0b21b55504fbdd3b

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20260130-en
resource tags

arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
19/04/2026, 03:45

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General

Target
bc62c860167a0e2bf1569fd6ede74d76e5c069801931516f0b21b55504fbdd3b.exe
Size 234KB
Sample260419-ebf7fab16n
SHA256 bc62c860167a0e2bf1569fd6ede74d76e5c069801931516f0b21b55504fbdd3b
MD5 29520526adcb8e11779423e434d94c4a
SHA1 8eb47c85cba5299279c901942e372608b6f59ce0
SHA512 57c5c46762e6e905f07612550746034bed2a108bfa0b5dd19e0f06eb3f21b6335e15c24105e21085fc4fd2b894ec698ac50d380c5d199caa12317ba2c979715d
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkTFK:X2vnSwjaOcADw9cUeCOf
TLSH
T103340200D7B2E5E8D44824BA0787D310EAE1DCDE7B73677143D5E32FAB41F1AA4AA194
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery farfli gh0strat persistence rat spyware stealer

Malware Config

Extracted

Family

gh0strat

107.163.241.193:6520
http://107.163.241.181:16300/
http://107.163.241.182:12354/login.php

Attributes

user_agent
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C))

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0)

Signatures

Family: Farfli
Farfli is a Windows backdoor written in C++.
backdoor farfli
Family: Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
rat gh0strat

Detects Farfli Backdoor 3 IoCs

resource	yara_rule
behavioral1/memory/4600-19-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral1/memory/4600-20-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli
behavioral1/memory/4600-27-0x0000000010000000-0x000000001004E000-memory.dmp	family_farfli

Deletes itself 1 IoCs

pid	Process
4848	nmsed.exe

Executes dropped EXE 2 IoCs

pid	Process
4848	nmsed.exe
4600	zglrhz.exe

Loads dropped DLL 1 IoCs

pid	Process
4600	zglrhz.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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-1-5-21-1609746302-1884177235-1125644204-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\hmlrcvyk\\zglrhz.exe \"c:\\Program Files\\hmlrcvyk\\zglrhz.dll\",Compliance"	zglrhz.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\k:	zglrhz.exe
File opened (read-only)	\??\l:	zglrhz.exe
File opened (read-only)	\??\n:	zglrhz.exe
File opened (read-only)	\??\q:	zglrhz.exe
File opened (read-only)	\??\s:	zglrhz.exe
File opened (read-only)	\??\v:	zglrhz.exe
File opened (read-only)	\??\y:	zglrhz.exe
File opened (read-only)	\??\e:	zglrhz.exe
File opened (read-only)	\??\j:	zglrhz.exe
File opened (read-only)	\??\m:	zglrhz.exe
File opened (read-only)	\??\p:	zglrhz.exe
File opened (read-only)	\??\r:	zglrhz.exe
File opened (read-only)	\??\u:	zglrhz.exe
File opened (read-only)	\??\x:	zglrhz.exe
File opened (read-only)	\??\a:	zglrhz.exe
File opened (read-only)	\??\b:	zglrhz.exe
File opened (read-only)	\??\i:	zglrhz.exe
File opened (read-only)	\??\o:	zglrhz.exe
File opened (read-only)	\??\t:	zglrhz.exe
File opened (read-only)	\??\w:	zglrhz.exe
File opened (read-only)	\??\z:	zglrhz.exe
File opened (read-only)	\??\g:	zglrhz.exe
File opened (read-only)	\??\h:	zglrhz.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PHYSICALDRIVE0	zglrhz.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File created	\??\c:\Program Files\hmlrcvyk\zglrhz.exe	nmsed.exe
File opened for modification	\??\c:\Program Files\hmlrcvyk\zglrhz.exe	nmsed.exe
File opened for modification	\??\c:\Program Files\hmlrcvyk	nmsed.exe
File created	\??\c:\Program Files\hmlrcvyk\zglrhz.dll	nmsed.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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bc62c860167a0e2bf1569fd6ede74d76e5c069801931516f0b21b55504fbdd3b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nmsed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zglrhz.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4784	PING.EXE
3472	cmd.exe

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	zglrhz.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	zglrhz.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4784	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4600	zglrhz.exe
4600	zglrhz.exe
4600	zglrhz.exe
4600	zglrhz.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4600	zglrhz.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4352	bc62c860167a0e2bf1569fd6ede74d76e5c069801931516f0b21b55504fbdd3b.exe
4848	nmsed.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4352 wrote to memory of 3472	4352	bc62c860167a0e2bf1569fd6ede74d76e5c069801931516f0b21b55504fbdd3b.exe	85
PID 3472 wrote to memory of 4784	3472	cmd.exe	87
PID 3472 wrote to memory of 4848	3472	cmd.exe	88
PID 4848 wrote to memory of 4600	4848	nmsed.exe	89

C:\Users\Admin\AppData\Local\Temp\bc62c860167a0e2bf1569fd6ede74d76e5c069801931516f0b21b55504fbdd3b.exe
"C:\Users\Admin\AppData\Local\Temp\bc62c860167a0e2bf1569fd6ede74d76e5c069801931516f0b21b55504fbdd3b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4352
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\nmsed.exe "C:\Users\Admin\AppData\Local\Temp\bc62c860167a0e2bf1569fd6ede74d76e5c069801931516f0b21b55504fbdd3b.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3472
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:4784
- - C:\Users\Admin\AppData\Local\Temp\nmsed.exe
    C:\Users\Admin\AppData\Local\Temp\\nmsed.exe "C:\Users\Admin\AppData\Local\Temp\bc62c860167a0e2bf1569fd6ede74d76e5c069801931516f0b21b55504fbdd3b.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4848
  - - \??\c:\Program Files\hmlrcvyk\zglrhz.exe
      "c:\Program Files\hmlrcvyk\zglrhz.exe" "c:\Program Files\hmlrcvyk\zglrhz.dll",Compliance C:\Users\Admin\AppData\Local\Temp\nmsed.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4600

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

zglrhz.exe

Path C:\Program Files\hmlrcvyk\zglrhz.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
TLSH
T127532AC2FA00C171D4A7563019778F1A5766AC13DB728ACB94B0B4A41EB3291AD3E5FF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

nmsed.exe

Path C:\Users\Admin\AppData\Local\Temp\nmsed.exe
Size 234KB
SHA256 7c92c8bd4da9b1ecf5928afb23292cdf0f3483251ba3079d3930fa8b32d2f074
MD5 31e4e05ee2286b23e56617ddcc0b94cc
SHA1 a390940e75a60fc0a7e50d462112b514e717645b
SHA512 27dc7a4bd8460919ebddb8d18b764de2c3a14a760121895311250908ba170f7fdfc785a1849f05cf3ac61469c223c4cd702150a69b4ea725e407419d579ecbc7
SSDEEP 3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkTFK:X2vnSwjaOcADw9cUeCOf
TLSH
T162340200D7B2E5E8D44824BA0787D310EAE1DCDE7B73677143D5E32FAB41F1AA4AA194
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

zglrhz.dll

Path \??\c:\Program Files\hmlrcvyk\zglrhz.dll
Size 141KB
SHA256 c001a9d5b133235d1751197daa9581006caed46720ac008fe2cb04fb55557b1a
MD5 2509bbfaa55c225022f816a81e86381c
SHA1 b21828c3c523df466996da221168b90092c38f93
SHA512 d49e2eda39fad3780e221caea5b446870146965c660c054baf1dd3a2a33f4843977505c3912c990c950714cc4413a76a416cbda6c1a2fd8e3e298a70b5faabdc
SSDEEP 3072:RGmRmNJToTJfp2D1QzpSyiJEkGSPf1bc4l1:RGMmfToTJY6zpSyvkGSn1tl1
TLSH
T1E9E312E0E3A7C4B6C265573183937DF3162CF4346B18072EFD62A32769394C44B9DA1A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4352-4-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4352-0-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4352-2-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4352-1-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4600-19-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/4600-20-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/4600-21-0x0000000002F00000-0x0000000002F5F000-memory.dmp

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memory/4600-27-0x0000000010000000-0x000000001004E000-memory.dmp

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memory/4848-8-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4848-9-0x0000000000400000-0x000000000044901D-memory.dmp

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memory/4848-15-0x0000000000400000-0x000000000044901D-memory.dmp

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