farfli | 91f7d2928b9919823fdbf54d06589012e0d52599148a65c660c38dcdc6057a91

Analysis

max time kernel
149s
max time network
146s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
28/09/2026, 05:37

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General

Target
91f7d2928b9919823fdbf54d06589012e0d52599148a65c660c38dcdc6057a91.exe
Size 653KB
Sample260928-ga7dcaxtbv
SHA256 91f7d2928b9919823fdbf54d06589012e0d52599148a65c660c38dcdc6057a91
MD5 5f2586ec790456fbe4693c3634b3e608
SHA1 82c75e8c893c38d7125b81923b3b71cfb5f1d7ec
SHA512 86a36b0ec33de9493ea1dc9f45073ce4e05fed9203b5ffe16bc8965155752421e0604f7c0bab29865942e3c04540d9b196251c005d48e3c6a8f0ca66c5d76936
SSDEEP 6144:PQJf3uMxrbLgEN6S7KzA5x3S5+y3D82oC0UdkgxgfOq:4J130ENL7kArI+y3XipfO
TLSH
T186E412F11964D42FE05910B6E78DE83166E0DCC639A50B3293E4BB0EB3C5A0BF57A235
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 3 IoCs

resource	yara_rule
behavioral2/memory/5948-11-0x0000000010000000-0x0000000010054000-memory.dmp	family_farfli
behavioral2/memory/5948-16-0x0000000010000000-0x0000000010054000-memory.dmp	family_farfli
behavioral2/memory/5948-20-0x0000000010000000-0x0000000010054000-memory.dmp	family_farfli

Badlisted process makes network request 15 IoCs

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

flow	pid	Process
3	5948	rundll32.exe
4	5948	rundll32.exe
10	5948	rundll32.exe
11	5948	rundll32.exe
12	5948	rundll32.exe
14	5948	rundll32.exe
15	5948	rundll32.exe
16	5948	rundll32.exe
18	5948	rundll32.exe
19	5948	rundll32.exe
20	5948	rundll32.exe
21	5948	rundll32.exe
22	5948	rundll32.exe
23	5948	rundll32.exe
26	5948	rundll32.exe

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
4884	nccfy.exe

Executes dropped EXE 3 IoCs

pid	Process
4884	nccfy.exe
4588	wiseman.exe
1164	wiseman.exe

Loads dropped DLL 1 IoCs

pid	Process
5948	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 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\Wiseman = "C:\\wiseman.exe"	wiseman.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\baroj\\lkvxxhm.kxl\",RAFlush"	rundll32.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:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\d:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\n:	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)	\??\v:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
	\??\f:\	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\j:	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

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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
4556	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 4 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\Domain	wiseman.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	rundll32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	rundll32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	wiseman.exe

System Location Discovery: System Language Discovery 1 TTPs 7 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	wiseman.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wiseman.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	91f7d2928b9919823fdbf54d06589012e0d52599148a65c660c38dcdc6057a91.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	nccfy.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.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
5956	PING.EXE
4556	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	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
5956	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe
5948	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5948	rundll32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4668	91f7d2928b9919823fdbf54d06589012e0d52599148a65c660c38dcdc6057a91.exe
4884	nccfy.exe
4588	wiseman.exe
1164	wiseman.exe
4588	wiseman.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4668 wrote to memory of 4556	4668	91f7d2928b9919823fdbf54d06589012e0d52599148a65c660c38dcdc6057a91.exe	90
PID 4556 wrote to memory of 5956	4556	cmd.exe	92
PID 4556 wrote to memory of 4884	4556	cmd.exe	93
PID 4884 wrote to memory of 5948	4884	nccfy.exe	94
PID 5948 wrote to memory of 4588	5948	rundll32.exe	95

C:\Users\Admin\AppData\Local\Temp\91f7d2928b9919823fdbf54d06589012e0d52599148a65c660c38dcdc6057a91.exe
"C:\Users\Admin\AppData\Local\Temp\91f7d2928b9919823fdbf54d06589012e0d52599148a65c660c38dcdc6057a91.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4668
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\nccfy.exe "C:\Users\Admin\AppData\Local\Temp\91f7d2928b9919823fdbf54d06589012e0d52599148a65c660c38dcdc6057a91.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:4556
- - 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:5956
- - C:\Users\Admin\AppData\Local\Temp\nccfy.exe
    C:\Users\Admin\AppData\Local\Temp\\nccfy.exe "C:\Users\Admin\AppData\Local\Temp\91f7d2928b9919823fdbf54d06589012e0d52599148a65c660c38dcdc6057a91.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4884
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\baroj\lkvxxhm.kxl",RAFlush C:\Users\Admin\AppData\Local\Temp\nccfy.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)
      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
      Suspicious use of WriteProcessMemory
      PID:5948
    - - C:\wiseman.exe
        
        "C:\wiseman.exe"
        5⤵
        Executes dropped EXE
        Adds Run key to start application
        Reads the TCP/IP host and domain name from the registry
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:4588

C:\wiseman.exe
C:\wiseman.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:1164

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k GPSvcGroup
1⤵
PID:3056

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

nccfy.exe

Path C:\Users\Admin\AppData\Local\Temp\nccfy.exe
Size 654KB
SHA256 7a39a6a693a070dbb5c2692dd8e1f4b95db5b9f3bac63391fe18e56f521f3c18
MD5 58c3a1cac60d5fdadd4e87b99eb40b6f
SHA1 c039d95207f20884a02358c2f7e1324463b4a1bc
SHA512 ebcc321ffddf558488f96dc1395d3aeabf9fba9edb934a7b9d0e201c1e7edbe8a2fbc88ba74461df5db9189cd5bfb26479385501576c370244156cd759f99cea
SSDEEP 6144:PQJf3uMxrbLgEN6S7KzA5x3S5+y3D82oC0UdkgxgfOq:4J130ENL7kArI+y3XipfO
TLSH
T17FE412F11964D42FE05910B6E78DE83166E0DCC639A50B3293E4BB0EB3C5A0BF57A235
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

wiseman.exe

Path C:\wiseman.exe
Size 378KB
SHA256 03505198d487e04a8ec82c627d34e4d9145f211140c4c8793b4461621e6bf6ce
MD5 8f242369cf14f2b26ced131d7dd67144
SHA1 d4f2f0f3047300ff5f36af6119ad5e109258fcd0
SHA512 4516b3fa2f68e64baf166bc7731ba3bb0ca53d36d71ff8fa78b1f211d7c14fc4442af50bd637d0c3f11913583c9c66996101d6e8738592a053e82a78bbd771f5
SSDEEP 6144:yraxNx1Gc9N6xJ/MO2N89M4qjGggUA0CthK1KLAb+AfQQIh+K+TuAubWq49OU/CU:ygVhNrAM1qgg2l
TLSH
T14B844C2152C61426E16B8232B4F7E3FAB53F940A56126BEBBB9CFE34C54E4533532349
MD5 SHA1 SHA512 SSDEEP TLSH

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lkvxxhm.kxl

Path \??\c:\baroj\lkvxxhm.kxl
Size 155KB
SHA256 ec6ef50587a847d4a655e9bfc5c1aee4078005c0774a3e6fa23949cc4d8fbad3
MD5 20e7a8b973ac2b43c95ddb77308266c9
SHA1 e46e6ea272ae628d15bfb7b71ff40e3950fd2e85
SHA512 60b585b2de46ac412577eb590916d282bf3f25ba1196362a97c12620c3b6eb94a78e3faac182305002790bb9c3705a346e54508b644d3e9329201fcb4bad0fd6
SSDEEP 3072:YuTByM2ViNpg032aUgrhoiFmyt8KDZS1:ZByMnN+3d1
TLSH
T10FF36D1163FD4618F5F7BF356EB54A605E3ABC62AE38CB0C1650504E59B1F60DAB0B23
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/4668-0-0x0000000000400000-0x000000000049E01B-memory.dmp

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memory/4668-2-0x0000000000400000-0x000000000049E01B-memory.dmp

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memory/4884-8-0x0000000000400000-0x000000000049E01B-memory.dmp

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memory/5948-11-0x0000000010000000-0x0000000010054000-memory.dmp

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memory/5948-16-0x0000000010000000-0x0000000010054000-memory.dmp

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memory/5948-20-0x0000000010000000-0x0000000010054000-memory.dmp

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