farfli | b2e6df7ad38252824fd583327fa7e6004a8fc8bb370cf95824906749681f50b3

General

Target
2026-08-04_e608f831c83773d72236977fb12ff11b_coinminer_elex_wannacry.exe
Size 418KB
Sample260804-q2m88asane
SHA256 b2e6df7ad38252824fd583327fa7e6004a8fc8bb370cf95824906749681f50b3
MD5 e608f831c83773d72236977fb12ff11b
SHA1 19c2845ce79ff36cb267bfa529c342552e6c1a24
SHA512 0aa0beffdef781742bf6313c4594a3aac0fc80e80a8741d4a7723d1edebf872e4aa7f5b9c92b65a989453044dc4125eb4a1784b80d9948589c2c1c6fc9f20305
SSDEEP 6144:TKgGmTBBuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F6L:jGmTju+mMC4ITJE8dfSJ/F6
TLSH
T1A894D02272D0CBA3C0856472CE66E63CD3E5CC689D705E3773E9F65EEA36901423A275
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/1412-6-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral2/memory/1412-8-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral2/memory/1412-10-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral2/memory/1412-6-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1412-8-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1412-10-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 1 IoCs

resource	yara_rule
behavioral2/files/0x0008000000019ce0-1.dat	UPX

Badlisted process makes network request 3 IoCs

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

flow	pid	Process
7	1412	rundll32.exe
10	1412	rundll32.exe
9	1412	rundll32.exe

Deletes itself 1 IoCs

pid	Process
5016	gcddcdui.exe

Executes dropped EXE 1 IoCs

pid	Process
5016	gcddcdui.exe

Loads dropped DLL 1 IoCs

pid	Process
1412	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-1-5-21-552508041-2681165170-3229858294-1000\Software\Microsoft\Windows\CurrentVersion\Run\D3D = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\toazf\\dixaq.dll\",InitEngine"	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)	\??\q:	rundll32.exe
File opened (read-only)	\??\d:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\v:	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

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	\??\c:\Program Files\toazf\dixaq.dll	gcddcdui.exe
File opened for modification	\??\c:\Program Files\toazf	gcddcdui.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
4684	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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gcddcdui.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-04_e608f831c83773d72236977fb12ff11b_coinminer_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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
4684	cmd.exe
1128	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
1128	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1412	rundll32.exe
1412	rundll32.exe
1412	rundll32.exe
1412	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1412	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1392	2026-08-04_e608f831c83773d72236977fb12ff11b_coinminer_elex_wannacry.exe
5016	gcddcdui.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1392 wrote to memory of 4684	1392	2026-08-04_e608f831c83773d72236977fb12ff11b_coinminer_elex_wannacry.exe	89
PID 4684 wrote to memory of 1128	4684	cmd.exe	91
PID 4684 wrote to memory of 5016	4684	cmd.exe	92
PID 5016 wrote to memory of 1412	5016	gcddcdui.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-08-04_e608f831c83773d72236977fb12ff11b_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-04_e608f831c83773d72236977fb12ff11b_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1392
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\gcddcdui.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-04_e608f831c83773d72236977fb12ff11b_coinminer_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:4684
- - 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:1128
- - C:\Users\Admin\AppData\Local\Temp\gcddcdui.exe
    C:\Users\Admin\AppData\Local\Temp\\gcddcdui.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-04_e608f831c83773d72236977fb12ff11b_coinminer_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:5016
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\toazf\dixaq.dll",InitEngine C:\Users\Admin\AppData\Local\Temp\gcddcdui.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)
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1412

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

gcddcdui.exe

Path C:\Users\Admin\AppData\Local\Temp\gcddcdui.exe
Size 418KB
SHA256 38769efbf0fd6034f01490239e1a2d8ad4fa236b5cf283afefef24e4b1128d29
MD5 e0d5852f6f78d5b3c37a52f843b81500
SHA1 8e5d831f84c6aa06d1bdea446f8e0109a9b44c8d
SHA512 f616eb0109d3b7d2e284ed61c633e6becc35b7a25047458a0f042c79452290369a23631f2568097b3626274a8e8df3948e08b723b38c0fb414a38b40f9000de4
SSDEEP 6144:TKgGmTBBuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F6LM:jGmTju+mMC4ITJE8dfSJ/F6o
TLSH
T10194D02272D0CBA3C0856472CE66E63CD3E5CC689D705E3773E9F65EEA36901423A275
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

dixaq.dll

Path \??\c:\Program Files\toazf\dixaq.dll
Size 176KB
SHA256 0fde1c89bf9507f85750deb9018e659e38f8de6034e11563bc6dea7e95b921b9
MD5 f1295297c8d9ada4bdef86b026fe8067
SHA1 186d4b929341cddc390681ccfaedf3ce2c7cf39a
SHA512 fee1caa52ba1ef2e2d72f40ac79f126312062cec2b8036e130e36daeeacc30146a8fde05ff05931db8afeca2d9acec64be83914b2e46757df0a354fb49c7010c
SSDEEP 3072:KiDJQVl82dm+NBiPAaHDb0gL/CyGbEPVMnY0RVjatbmKb6DWSFoocs:1Jv2tOItshGYdMnYYVjasKbOWSFofs
TLSH
T1EB041261862D1C34D087B7717B05920DF6B453A49179CB93F7B8AF2B3D12AEA806E353
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1412-7-0x000000001005A000-0x000000001005B000-memory.dmp

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memory/1412-6-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/1412-8-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/1412-10-0x0000000010000000-0x0000000010067000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads