farfli | 96c97d743127e11da0655d2ff2eadf29b395c6633ceb8e11528e2be7bb891b45

Analysis

max time kernel
150s
max time network
137s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260710-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
03/09/2026, 19:25

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General

Target
2026-09-03_ed8a3976cc99b6f1cc855754b02c5a99_elex_wannacry.exe
Size 436KB
Sample260903-x4994avblh
SHA256 96c97d743127e11da0655d2ff2eadf29b395c6633ceb8e11528e2be7bb891b45
MD5 ed8a3976cc99b6f1cc855754b02c5a99
SHA1 168f0b34c7e3d6daf9c118e11fb52478f5ed6020
SHA512 41d1cc32dd6c5ec0b5bf94d4c51ca79253bf0e2255432b109ffbe5f93e9c265ca17f2b5c7bfc8e25e66cecf4b083446442ceacd875cfe037481e8a7ae730aae3
SSDEEP 6144:BAzMDuL6wVQ+jex2envjZMqLNC95Cw8PEPHV0eXX:W5HjS2KlfLNo5CwKc3
TLSH
T11194A25163F94608F6F77F7CAA792E7C4A76FC9EED38C65C0252404F59B1A5088A0B23
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery execution farfli persistence spyware stealer

Malware Config

Signatures

Family: Farfli
Farfli is a Windows backdoor written in C++.
backdoor farfli

Detects Farfli Backdoor 3 IoCs

resource	yara_rule
behavioral2/memory/1660-11-0x0000000010000000-0x0000000010065000-memory.dmp	family_farfli
behavioral2/memory/1660-9-0x0000000010000000-0x0000000010065000-memory.dmp	family_farfli
behavioral2/memory/1660-13-0x0000000010000000-0x0000000010065000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral2/memory/1660-11-0x0000000010000000-0x0000000010065000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1660-9-0x0000000010000000-0x0000000010065000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1660-13-0x0000000010000000-0x0000000010065000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Badlisted process makes network request 7 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
3	1660	rundll32.exe
11	1660	rundll32.exe
12	1660	rundll32.exe
13	1660	rundll32.exe
14	1660	rundll32.exe
17	1660	rundll32.exe
19	1660	rundll32.exe

Deletes itself 1 IoCs

pid	Process
2140	ccqhu.exe

Executes dropped EXE 1 IoCs

pid	Process
2140	ccqhu.exe

Loads dropped DLL 1 IoCs

pid	Process
1660	rundll32.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-1-5-21-2301830172-776172150-2531349243-1000\Software\Microsoft\Windows\CurrentVersion\Run\Axpol = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\ynxnx\\dabvy.dll\",ZipCompress"	rundll32.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)	\??\b:	rundll32.exe
File opened (read-only)	\??\d:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.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	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1660	rundll32.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\ynxnx	ccqhu.exe
File created	\??\c:\Program Files\ynxnx\dabvy.dll	ccqhu.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
3104	cmd.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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-09-03_ed8a3976cc99b6f1cc855754b02c5a99_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	ccqhu.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
3104	cmd.exe
6032	PING.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	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	rundll32.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
6032	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe
1660	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1660	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1216	2026-09-03_ed8a3976cc99b6f1cc855754b02c5a99_elex_wannacry.exe
2140	ccqhu.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1216 wrote to memory of 3104	1216	2026-09-03_ed8a3976cc99b6f1cc855754b02c5a99_elex_wannacry.exe	89
PID 3104 wrote to memory of 6032	3104	cmd.exe	91
PID 3104 wrote to memory of 2140	3104	cmd.exe	92
PID 2140 wrote to memory of 1660	2140	ccqhu.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-09-03_ed8a3976cc99b6f1cc855754b02c5a99_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-09-03_ed8a3976cc99b6f1cc855754b02c5a99_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1216
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ccqhu.exe "C:\Users\Admin\AppData\Local\Temp\2026-09-03_ed8a3976cc99b6f1cc855754b02c5a99_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:3104
- - 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:6032
- - C:\Users\Admin\AppData\Local\Temp\ccqhu.exe
    C:\Users\Admin\AppData\Local\Temp\\ccqhu.exe "C:\Users\Admin\AppData\Local\Temp\2026-09-03_ed8a3976cc99b6f1cc855754b02c5a99_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:2140
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\ynxnx\dabvy.dll",ZipCompress C:\Users\Admin\AppData\Local\Temp\ccqhu.exe
      4⤵
      Badlisted process makes network request
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Suspicious use of NtSetInformationThreadHideFromDebugger
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1660

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

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

ccqhu.exe

Path C:\Users\Admin\AppData\Local\Temp\ccqhu.exe
Size 437KB
SHA256 94af9944e01845998b906a54b831b173da615e7d65014a135a9dc012f0d942aa
MD5 3f8bfcbc312ff05a329867eb91b8fead
SHA1 f38799dc430ae0467ac6eb58d6134879b68088d6
SHA512 ee4dd969e0b27d4dbfdd494390458f4c68db98029f5c52d9108d7745e84a16a8700345aebdfb9db27911d59436deef6b6582af293b860d1f2272d286760a4c3f
SSDEEP 6144:BAzMDuL6wVQ+jex2envjZMqLNC95Cw8PEPHV0eXJ:W5HjS2KlfLNo5CwKcp
TLSH
T11694A25163F94608F6F77F7CAA792E7C4A76FC9EED38C65C0252404F59B1A5088A0B23
MD5 SHA1 SHA512 SSDEEP TLSH

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dabvy.dll

Path \??\c:\Program Files\ynxnx\dabvy.dll
Size 180KB
SHA256 04daecedf2cb3892afcde8408e2dac9e04bfa708114f2eb22b019a50c85c20bc
MD5 f00c462f27418c1330a51a9eb415f79f
SHA1 63e5b4b05ec8498e14ab56bc9927278d9a8e62d2
SHA512 32eb6ff6b50618c354075ca6257d051d59ab39829df66b71dea3362c2397ffdd08d42a211fe4d9f90e9748bec121681a704e1436db2b78db4fca638fb1d46141
SSDEEP 3072:R/q9D8TGRg+2P0XSE0+7GHms91/Eg+lJKkarUTKeaVa/+UJCmwEgC5Vi8tvuGG:I8CgNPISQXsj/MlmYHOa/BJlwEgC5Vip
TLSH
T1B70402C1AD0757B3D15743734D26989CFF341A602A3ACF29F609EAA6E421117A6BF132
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1216-0-0x0000000000400000-0x000000000046D000-memory.dmp

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memory/1216-2-0x0000000000400000-0x000000000046D000-memory.dmp

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memory/1660-12-0x000000001004A000-0x000000001004B000-memory.dmp

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memory/1660-11-0x0000000010000000-0x0000000010065000-memory.dmp

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memory/1660-9-0x0000000010000000-0x0000000010065000-memory.dmp

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memory/1660-13-0x0000000010000000-0x0000000010065000-memory.dmp

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memory/2140-6-0x0000000000400000-0x000000000046D000-memory.dmp

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