farfli | 205a52fb6c8e88d5ce3739143d6957567c91568adbb3920b4fa830fd7a5d0357

Analysis

max time kernel
148s
max time network
147s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
30/09/2026, 11:19

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General

Target
2026-09-30_566d995cbc503001efc035bf5966c6e3_elex_wannacry.exe
Size 360KB
Sample260930-ne9gtsshnd
SHA256 205a52fb6c8e88d5ce3739143d6957567c91568adbb3920b4fa830fd7a5d0357
MD5 566d995cbc503001efc035bf5966c6e3
SHA1 84949ef482f1f8f90fd39bfe413e99a50711b12f
SHA512 e28e7e5683e489abaf377ddec53f465cefb8fa44c051bd7afd1bef3e1bd533b2de73a4eca284a85fb2a2b5dff18a267e67dffcd5e09c1e12ee3d0ac2f07c9352
SSDEEP 6144:lpFbYirO/Vo8wjOm6JMRPzyZCJeNnTImk9dKacFK8Czj8YT4kFa9W:FcirO2PE2QC00me2VCzYYT20
TLSH
T1A974DF1372D048B6E4853633CD76BEB4E3F9D1AC5E32DA775F98460C1E36A0993122AD
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit defense_evasion discovery execution farfli gh0strat persistence rat spyware stealer

Malware Config

Extracted

Family

gh0strat

107.163.56.251:6658
http://107.163.56.240:18963/main.php
http://107.163.56.241:18530/

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 2 IoCs

resource	yara_rule
behavioral2/memory/4552-12-0x0000000010000000-0x000000001004F000-memory.dmp	family_farfli
behavioral2/memory/4552-17-0x0000000010000000-0x000000001004F000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral2/memory/4552-12-0x0000000010000000-0x000000001004F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4552-17-0x0000000010000000-0x000000001004F000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
1004	jpxhe.exe

Executes dropped EXE 2 IoCs

pid	Process
1004	jpxhe.exe
4552	xzefbzd.exe

Loads dropped DLL 1 IoCs

pid	Process
4552	xzefbzd.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-1-5-21-461973139-3212354679-1508698038-1000\Software\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\qdyow\\xzefbzd.exe \"c:\\Program Files\\qdyow\\xzefbzd.dll\",Compliance"	xzefbzd.exe

Enumerates connected drives 3 TTPs 24 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)	\??\l:	xzefbzd.exe
File opened (read-only)	\??\v:	xzefbzd.exe
File opened (read-only)	\??\z:	xzefbzd.exe
	\??\f:\	xzefbzd.exe
File opened (read-only)	\??\i:	xzefbzd.exe
File opened (read-only)	\??\p:	xzefbzd.exe
File opened (read-only)	\??\s:	xzefbzd.exe
File opened (read-only)	\??\u:	xzefbzd.exe
File opened (read-only)	\??\h:	xzefbzd.exe
File opened (read-only)	\??\j:	xzefbzd.exe
File opened (read-only)	\??\m:	xzefbzd.exe
File opened (read-only)	\??\n:	xzefbzd.exe
File opened (read-only)	\??\x:	xzefbzd.exe
File opened (read-only)	\??\a:	xzefbzd.exe
File opened (read-only)	\??\b:	xzefbzd.exe
File opened (read-only)	\??\o:	xzefbzd.exe
File opened (read-only)	\??\q:	xzefbzd.exe
File opened (read-only)	\??\r:	xzefbzd.exe
File opened (read-only)	\??\t:	xzefbzd.exe
File opened (read-only)	\??\w:	xzefbzd.exe
File opened (read-only)	\??\y:	xzefbzd.exe
File opened (read-only)	\??\d:	xzefbzd.exe
File opened (read-only)	\??\g:	xzefbzd.exe
File opened (read-only)	\??\k:	xzefbzd.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	xzefbzd.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	\??\c:\Program Files\qdyow\xzefbzd.exe	jpxhe.exe
File opened for modification	\??\c:\Program Files\qdyow	jpxhe.exe
File created	\??\c:\Program Files\qdyow\xzefbzd.dll	jpxhe.exe

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
3320	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	xzefbzd.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	xzefbzd.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	xzefbzd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-09-30_566d995cbc503001efc035bf5966c6e3_elex_wannacry.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	jpxhe.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
5432	PING.EXE
3320	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	xzefbzd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	xzefbzd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5432	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4552	xzefbzd.exe
4552	xzefbzd.exe
4552	xzefbzd.exe
4552	xzefbzd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4552	xzefbzd.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4612	2026-09-30_566d995cbc503001efc035bf5966c6e3_elex_wannacry.exe
1004	jpxhe.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4612 wrote to memory of 3320	4612	2026-09-30_566d995cbc503001efc035bf5966c6e3_elex_wannacry.exe	89
PID 3320 wrote to memory of 5432	3320	cmd.exe	91
PID 3320 wrote to memory of 1004	3320	cmd.exe	92
PID 1004 wrote to memory of 4552	1004	jpxhe.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-09-30_566d995cbc503001efc035bf5966c6e3_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-09-30_566d995cbc503001efc035bf5966c6e3_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4612
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\jpxhe.exe "C:\Users\Admin\AppData\Local\Temp\2026-09-30_566d995cbc503001efc035bf5966c6e3_elex_wannacry.exe"
  2⤵
  - Executes a command shell one-liner
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:3320
- - 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:5432
- - C:\Users\Admin\AppData\Local\Temp\jpxhe.exe
    C:\Users\Admin\AppData\Local\Temp\\jpxhe.exe "C:\Users\Admin\AppData\Local\Temp\2026-09-30_566d995cbc503001efc035bf5966c6e3_elex_wannacry.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:1004
  - - \??\c:\Program Files\qdyow\xzefbzd.exe
      "c:\Program Files\qdyow\xzefbzd.exe" "c:\Program Files\qdyow\xzefbzd.dll",Compliance C:\Users\Admin\AppData\Local\Temp\jpxhe.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Reads the TCP/IP host and domain name from the registry
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4552

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

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

Indicator Removal

T1070

File Deletion

T1070.004

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

Replay Monitor

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Downloads

xzefbzd.exe

Path C:\Program Files\qdyow\xzefbzd.exe
Size 51KB
SHA256 ce6bb7eddc83762c708d4a41709ae00371dbdc09b2a380f28fa60b1edf917473
MD5 2e068ce2770fde8d1af4cb114b98df1f
SHA1 b6f9c2775babb025b22f915c3047aa627d07c312
SHA512 998d695eb56375e63df7db16740b89deb2cf630ccbead8bcf84a921ec6f4a4f9aef2755b703f7190f332b2008ebcc949363bcf8f392d7d07246c255b5073ed35
SSDEEP 1536:6G9yoVEpHP29I3fbcJboSUge5N+CnC/maz9Rh:8pv2mbcJboce58wvOR
TLSH
T137336C236A0A49B3DFE231780A9D7232526DD862075541F7A61057EAFD243E2EE743CF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

jpxhe.exe

Path C:\Users\Admin\AppData\Local\Temp\jpxhe.exe
Size 360KB
SHA256 000caf4a78339a973fdb2ffbf1d00ca44087ac1c52a44bc6b010367592d3bff7
MD5 e8fcc7cce328ff7fb7a8de601e74da75
SHA1 4ce9a674bda0d8c8a2eb327bd52a03a5189873b9
SHA512 2239a92ad268127394b226c9d62d3c9a39dd60eb01de5dcfe835bdaad5a0c021e4c94da80fce06d1d0ded4a31d018547f82a5fdfa79e2b396a6ebae02d67111b
SSDEEP 6144:lpFbYirO/Vo8wjOm6JMRPzyZCJeNnTImk9dKacFK8Czj8YT4kFa9:FcirO2PE2QC00me2VCzYYT2
TLSH
T15D74DF1372D048B6E4853633CD76BEB4E3F9D1AC5E32DA775F98460C1E36A0993122AD
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

xzefbzd.dll

Path \??\c:\Program Files\qdyow\xzefbzd.dll
Size 179KB
SHA256 1f9b81e8e8d4ef0acebbb76b48cca4af2e8d6fb9459f916e9c03dd3b0e6f002d
MD5 dc8821c18f85314116ed42c66c5d3736
SHA1 5c255b2138678cc34f9bd80d6b03beec3aeafc39
SHA512 c779f3d531767874bd5a027fc947bfb88e850c35ef63c8f1f43197604fffbb5713484cb85fb4219f40c569b703c9de3250a11c4c53ac00d400963b593a147710
SSDEEP 3072:EC5Wpfs98nVCWdKycHtld8VBt7NUalwXH9RqYzJabTYd3KIdj6+uFdi98pvO0hfI:ECOfQ8nVcycHrd8VBtBUa4HfRzJabT8L
TLSH
T1730423EBBF42C652C84F6776B6AF244437A906D91BC1E0A56F0482CE39C3135E67DE48
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1004-7-0x0000000000400000-0x0000000000458000-memory.dmp

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memory/4552-10-0x0000000010000000-0x000000001004F000-memory.dmp

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memory/4552-11-0x0000000002990000-0x0000000002991000-memory.dmp

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memory/4552-12-0x0000000010000000-0x000000001004F000-memory.dmp

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memory/4552-17-0x0000000010000000-0x000000001004F000-memory.dmp

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memory/4612-0-0x0000000000400000-0x0000000000458000-memory.dmp

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memory/4612-2-0x0000000000400000-0x0000000000458000-memory.dmp

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