farfli | 2722992cd48d85a1a943a90dfa1dd9b2399b8d487af6b778bf7afca1fd1f924a

General

Target
2026-09-08_cf8b5122e57cfe53d22a83bc3855a4c7_coinminer_elex_wannacry.exe
Size 412KB
Sample260908-n3rxpayvbw
SHA256 2722992cd48d85a1a943a90dfa1dd9b2399b8d487af6b778bf7afca1fd1f924a
MD5 cf8b5122e57cfe53d22a83bc3855a4c7
SHA1 4d26466af177fad22e19a9ebd65bdf445b9429ab
SHA512 810557afc5dbfbc99f60194b4e8b10021cea7c9b769a42f4c60eb97fe1827a4b898217800f89ef1c4efb9f0453923ac8268c9d2c25c4cdd188e30d10357b3f13
SSDEEP 12288:JdDU6g13sJd1fm/+yb3O2jg82ydU/DdKum8u:JdE3sJd1fm/+yb3OYg84/JHzu
TLSH
T18594AF01E7C351D6DE82257081FA7376B378DA4D0F12C7E3BBA8EE2E6E21191953B119
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
behavioral1/memory/2400-12-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral1/memory/2400-14-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral1/memory/2400-17-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral1/memory/2400-12-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2400-14-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2400-17-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 6 IoCs

resource	yara_rule
behavioral1/files/0x000b00000002440d-2.dat	UPX
behavioral1/files/0x00080000000245f4-8.dat	UPX
behavioral1/memory/2400-11-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral1/memory/2400-12-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral1/memory/2400-14-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral1/memory/2400-17-0x0000000010000000-0x0000000010033000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
1268	ckcqhkpcr.exe

Executes dropped EXE 2 IoCs

pid	Process
1268	ckcqhkpcr.exe
2400	lsj.exe

Loads dropped DLL 1 IoCs

pid	Process
2400	lsj.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-1-5-21-2370214745-1838013427-2987045292-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VIEW = "c:\\Program Files\\ijedn\\lsj.exe \"c:\\Program Files\\ijedn\\lsjdr.dll\",Viewer"	lsj.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)	\??\g:	lsj.exe
File opened (read-only)	\??\m:	lsj.exe
File opened (read-only)	\??\n:	lsj.exe
File opened (read-only)	\??\x:	lsj.exe
File opened (read-only)	\??\i:	lsj.exe
File opened (read-only)	\??\q:	lsj.exe
File opened (read-only)	\??\t:	lsj.exe
File opened (read-only)	\??\y:	lsj.exe
File opened (read-only)	\??\z:	lsj.exe
File opened (read-only)	\??\b:	lsj.exe
File opened (read-only)	\??\e:	lsj.exe
File opened (read-only)	\??\j:	lsj.exe
File opened (read-only)	\??\k:	lsj.exe
File opened (read-only)	\??\o:	lsj.exe
File opened (read-only)	\??\p:	lsj.exe
File opened (read-only)	\??\s:	lsj.exe
File opened (read-only)	\??\u:	lsj.exe
File opened (read-only)	\??\a:	lsj.exe
File opened (read-only)	\??\h:	lsj.exe
File opened (read-only)	\??\l:	lsj.exe
File opened (read-only)	\??\r:	lsj.exe
File opened (read-only)	\??\v:	lsj.exe
File opened (read-only)	\??\w:	lsj.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	lsj.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\ijedn	ckcqhkpcr.exe
File created	\??\c:\Program Files\ijedn\lsjdr.dll	ckcqhkpcr.exe
File created	\??\c:\Program Files\ijedn\lsj.exe	ckcqhkpcr.exe
File opened for modification	\??\c:\Program Files\ijedn\lsj.exe	ckcqhkpcr.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
4732	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	ckcqhkpcr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	lsj.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-09-08_cf8b5122e57cfe53d22a83bc3855a4c7_coinminer_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

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
4732	cmd.exe
3472	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	lsj.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	lsj.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3472	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2400	lsj.exe
2400	lsj.exe
2400	lsj.exe
2400	lsj.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2400	lsj.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
828	2026-09-08_cf8b5122e57cfe53d22a83bc3855a4c7_coinminer_elex_wannacry.exe
1268	ckcqhkpcr.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 828 wrote to memory of 4732	828	2026-09-08_cf8b5122e57cfe53d22a83bc3855a4c7_coinminer_elex_wannacry.exe	85
PID 4732 wrote to memory of 3472	4732	cmd.exe	87
PID 4732 wrote to memory of 1268	4732	cmd.exe	88
PID 1268 wrote to memory of 2400	1268	ckcqhkpcr.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-09-08_cf8b5122e57cfe53d22a83bc3855a4c7_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-09-08_cf8b5122e57cfe53d22a83bc3855a4c7_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:828
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ckcqhkpcr.exe "C:\Users\Admin\AppData\Local\Temp\2026-09-08_cf8b5122e57cfe53d22a83bc3855a4c7_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:4732
- - 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:3472
- - C:\Users\Admin\AppData\Local\Temp\ckcqhkpcr.exe
    C:\Users\Admin\AppData\Local\Temp\\ckcqhkpcr.exe "C:\Users\Admin\AppData\Local\Temp\2026-09-08_cf8b5122e57cfe53d22a83bc3855a4c7_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:1268
  - - \??\c:\Program Files\ijedn\lsj.exe
      "c:\Program Files\ijedn\lsj.exe" "c:\Program Files\ijedn\lsjdr.dll",Viewer C:\Users\Admin\AppData\Local\Temp\ckcqhkpcr.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:2400

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

lsj.exe

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

Submit Download

ckcqhkpcr.exe

Path C:\Users\Admin\AppData\Local\Temp\ckcqhkpcr.exe
Size 413KB
SHA256 47394d1e3b46e632a64d7ae8026bee5df27de5ceadb711e6f78477debce25bc5
MD5 7d6c133f52f03637d5655dd5e118f465
SHA1 59aead611f9a25b0730d104b7148d7b3d6292a7e
SHA512 fe1ef7d9c5eb352489f58026cf330b276d86702d00a9401edca107d63d61aaf7f4c40fe2ad9e5f4a1468a21427ee1f6d6272eb9fe851d04182245c4980fe4785
SSDEEP 12288:JdDU6g13sJd1fm/+yb3O2jg82ydU/DdKum8g:JdE3sJd1fm/+yb3OYg84/JHzg
TLSH
T1D894AF01E7C351D6DE82257081FA7376B378DA4D0F12C7E3BBA8EE2E6E21191953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

lsjdr.dll

Path \??\c:\Program Files\ijedn\lsjdr.dll
Size 89KB
SHA256 17893a35685c5415bb7efc1f938cf4057d8ee4c49efde4570432d75d2899b035
MD5 5bc88721bcad7b5f411a4f1c067e09c0
SHA1 11f1432ca8f8c7bf40e99b5beda01cbfd4330ce9
SHA512 ac9c0581a13af87f510744e3ea19a0f8b92d8959d0adcee385b9256e2c2ed1449db361a41817f69c707a7b71119abf694ffb1bc5f1eb3ec101fe549f0d9f72c9
SSDEEP 1536:XHXqO6ZG03eyenOj9lgA/PObuTMT5NMCfL7ojaZf5aZlBlGe:M1uF6Feu2NlQOBcGe
TLSH
T1E39302C45665CD8BCCD87072727FAA4EE631C4CCB941ACB34A5E13A31A36AF3D05AB05
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2400-11-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/2400-12-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/2400-14-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/2400-17-0x0000000010000000-0x0000000010033000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads