farfli | fc415ff9f2c75e7fbc59dbb59602b1ddf3d136f55703539a4d7fd64f7e6a7083

Analysis

max time kernel
149s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20260911-en
resource tags

arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
24/10/2026, 18:35

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General

Target
2026-10-22_27e7ab35b40a7e77b1480b8e44c5e4c7_coinminer_elex_wannacry.exe
Size 401KB
Sample261024-w8la4afe39
SHA256 fc415ff9f2c75e7fbc59dbb59602b1ddf3d136f55703539a4d7fd64f7e6a7083
MD5 27e7ab35b40a7e77b1480b8e44c5e4c7
SHA1 ba387c5edb3f954536fd3b646ba3ec19ca4de58d
SHA512 2ae5823bbab750655e4aca3e082da0da3fef86c9dbef38276c77e134b18985b27afa121fae341ff5b5e1e7a5784d8c99ceead2b9a237c78fe6eeafc9b052f27a
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKumH2:zdE3sJd1fm/+yb3OYs84/JH62
TLSH
T1FA94AF01E68351D6DE8225B081FA7376B378DA4D0F12C7E3BB68EE2E6E211D1953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit defense_evasion discovery execution farfli persistence spyware stealer

Malware Config

Signatures

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

Detects Farfli Backdoor 4 IoCs

resource	yara_rule
behavioral1/memory/2472-14-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral1/memory/2472-15-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral1/memory/2472-17-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli
behavioral1/memory/2472-20-0x0000000010000000-0x0000000010033000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 4 IoCs

resource	yara_rule
behavioral1/memory/2472-14-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2472-15-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2472-17-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/2472-20-0x0000000010000000-0x0000000010033000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 9 IoCs

resource	yara_rule
behavioral1/memory/4436-0-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral1/memory/4436-2-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral1/files/0x001200000001db06-4.dat	UPX
behavioral1/files/0x000700000002446d-10.dat	UPX
behavioral1/memory/3488-11-0x0000000000400000-0x0000000000471000-memory.dmp	UPX
behavioral1/memory/2472-14-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral1/memory/2472-15-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral1/memory/2472-17-0x0000000010000000-0x0000000010033000-memory.dmp	UPX
behavioral1/memory/2472-20-0x0000000010000000-0x0000000010033000-memory.dmp	UPX

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
3488	jtwvnv.exe

Executes dropped EXE 2 IoCs

pid	Process
3488	jtwvnv.exe
2472	nmi.exe

Loads dropped DLL 1 IoCs

pid	Process
2472	nmi.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-1-5-21-747854149-4118156852-591593384-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VIEW = "c:\\Program Files\\fadgj\\nmi.exe \"c:\\Program Files\\fadgj\\nmixx.dll\",Viewer"	nmi.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)	\??\x:	nmi.exe
File opened (read-only)	\??\i:	nmi.exe
File opened (read-only)	\??\m:	nmi.exe
File opened (read-only)	\??\q:	nmi.exe
File opened (read-only)	\??\v:	nmi.exe
File opened (read-only)	\??\y:	nmi.exe
File opened (read-only)	\??\z:	nmi.exe
File opened (read-only)	\??\e:	nmi.exe
File opened (read-only)	\??\h:	nmi.exe
File opened (read-only)	\??\k:	nmi.exe
File opened (read-only)	\??\n:	nmi.exe
File opened (read-only)	\??\r:	nmi.exe
File opened (read-only)	\??\u:	nmi.exe
File opened (read-only)	\??\b:	nmi.exe
File opened (read-only)	\??\g:	nmi.exe
File opened (read-only)	\??\s:	nmi.exe
File opened (read-only)	\??\a:	nmi.exe
File opened (read-only)	\??\j:	nmi.exe
File opened (read-only)	\??\l:	nmi.exe
File opened (read-only)	\??\o:	nmi.exe
File opened (read-only)	\??\p:	nmi.exe
File opened (read-only)	\??\t:	nmi.exe
File opened (read-only)	\??\w:	nmi.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	nmi.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\fadgj\nmi.exe	jtwvnv.exe
File opened for modification	\??\c:\Program Files\fadgj	jtwvnv.exe
File created	\??\c:\Program Files\fadgj\nmixx.dll	jtwvnv.exe
File created	\??\c:\Program Files\fadgj\nmi.exe	jtwvnv.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
4564	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	2026-10-22_27e7ab35b40a7e77b1480b8e44c5e4c7_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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jtwvnv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nmi.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
4564	cmd.exe
3568	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	nmi.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	nmi.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3568	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2472	nmi.exe
2472	nmi.exe
2472	nmi.exe
2472	nmi.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2472	nmi.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4436	2026-10-22_27e7ab35b40a7e77b1480b8e44c5e4c7_coinminer_elex_wannacry.exe
3488	jtwvnv.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4436 wrote to memory of 4564	4436	2026-10-22_27e7ab35b40a7e77b1480b8e44c5e4c7_coinminer_elex_wannacry.exe	85
PID 4564 wrote to memory of 3568	4564	cmd.exe	87
PID 4564 wrote to memory of 3488	4564	cmd.exe	88
PID 3488 wrote to memory of 2472	3488	jtwvnv.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-10-22_27e7ab35b40a7e77b1480b8e44c5e4c7_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-22_27e7ab35b40a7e77b1480b8e44c5e4c7_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4436
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\jtwvnv.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-22_27e7ab35b40a7e77b1480b8e44c5e4c7_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:4564
- - 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:3568
- - C:\Users\Admin\AppData\Local\Temp\jtwvnv.exe
    C:\Users\Admin\AppData\Local\Temp\\jtwvnv.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-22_27e7ab35b40a7e77b1480b8e44c5e4c7_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:3488
  - - \??\c:\Program Files\fadgj\nmi.exe
      "c:\Program Files\fadgj\nmi.exe" "c:\Program Files\fadgj\nmixx.dll",Viewer C:\Users\Admin\AppData\Local\Temp\jtwvnv.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:2472

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

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Downloads

nmi.exe

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

Submit Download

jtwvnv.exe

Path C:\Users\Admin\AppData\Local\Temp\jtwvnv.exe
Size 402KB
SHA256 88e6a16111042c01b30f61447a2c8e4022a8fc6c1edc75da4f50ccf97d385420
MD5 081ddc7155447a6bbc12108938fdbe79
SHA1 b8feb9c0daf143559de4d7561062b15776cc319d
SHA512 e92603d469a46ae25b7e3821dc25c303eee44632410132fbe68e1eac7c607cd3ed476d3adcb1796e44ca01e814e394a0661ca0c6e000fc67179a2fa074f7f41a
SSDEEP 12288:zdDU6g13sJd1fm/+yb3O2js82ydU/DdKumHt:zdE3sJd1fm/+yb3OYs84/JH6t
TLSH
T1B894AF01E78351D6DE8225B081FA7376B378DA4D0F12C7E3BB68EE2E6E211D1953B119
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

nmixx.dll

Path \??\c:\Program Files\fadgj\nmixx.dll
Size 89KB
SHA256 599611d8e8044533bf6d79414f525b115725063b29d3a199d5fd2ea7db11002e
MD5 0a172f7b28419f5a9840231f6de2ba87
SHA1 e593de6dd605c08e460e15ccf5c5cbe64086522e
SHA512 72d78ca25e8a5aecb37badc547d2edcf998887d6388028fb7147d26fbfb0408a829d2df733669ae03b7af17a0848a3a4e46068eafea67d969d0284bde7faef41
SSDEEP 1536:XHXqO6ZG03eyenOj9lgA/PObuTMT5NMCfL7ojaZf5aZlBlGp:M1uF6Feu2NlQOBcGp
TLSH
T1E09302C45665CD8BCCD87072727FAA4EE631C48CB941ACB34A5E17A31A36AF3D41A705
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2472-14-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/2472-15-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/2472-17-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/2472-20-0x0000000010000000-0x0000000010033000-memory.dmp

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memory/3488-11-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/4436-0-0x0000000000400000-0x0000000000471000-memory.dmp

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memory/4436-2-0x0000000000400000-0x0000000000471000-memory.dmp

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