farfli | 9aea85fb7cae5a2ee4ace73ab986553e0484f48278df1b8a2c3cd6cfd0b2b5ea

Analysis

max time kernel
150s
max time network
136s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
25/04/2026, 09:21

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General

Target
9aea85fb7cae5a2ee4ace73ab986553e0484f48278df1b8a2c3cd6cfd0b2b5ea.exe
Size 639KB
Sample260425-lbpbdaaz2n
SHA256 9aea85fb7cae5a2ee4ace73ab986553e0484f48278df1b8a2c3cd6cfd0b2b5ea
MD5 71875a1a3e1a9fbaec5bd0074e9a7148
SHA1 8fdba68c85c670e26ee9224a2059e64cebfa19eb
SHA512 3d3534f0a997896c15c557382c4172ef20edac27356e170018f92ebf798d2684ed614ff5f4a90c5f7c46cee4d103c3a1d4cb2b7b7f7e4292f67c89b81df02fca
SSDEEP 6144:PQJf3uMxrbLgEN6S7KzA5x3S5+y3D82oC0UdkgxgfOqP:4J130ENL7kArI+y3XipfOc
TLSH
T126D423F11D58D81FD1A441B3E99DF87235F1DCC0A8A50F225AF17A2DB7D900BBA29A31
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery 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/5076-16-0x0000000010000000-0x0000000010054000-memory.dmp	family_farfli
behavioral2/memory/5076-18-0x0000000010000000-0x0000000010054000-memory.dmp	family_farfli
behavioral2/memory/5076-20-0x0000000010000000-0x0000000010054000-memory.dmp	family_farfli

Badlisted process makes network request 8 IoCs

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

flow	pid	Process
1	5076	rundll32.exe
3	5076	rundll32.exe
4	5076	rundll32.exe
5	5076	rundll32.exe
6	5076	rundll32.exe
7	5076	rundll32.exe
9	5076	rundll32.exe
12	5076	rundll32.exe

Deletes itself 1 IoCs

pid	Process
1780	xitgfystk.exe

Executes dropped EXE 3 IoCs

pid	Process
1780	xitgfystk.exe
4732	wiseman.exe
4336	wiseman.exe

Loads dropped DLL 1 IoCs

pid	Process
5076	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-1-5-21-3119821332-640943685-2562343641-1000\Software\Microsoft\Windows\CurrentVersion\Run\Wiseman = "C:\\wiseman.exe"	wiseman.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3119821332-640943685-2562343641-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\evtql\\ninun.iun\",RAFlush"	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)	\??\e:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\z:	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

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	9aea85fb7cae5a2ee4ace73ab986553e0484f48278df1b8a2c3cd6cfd0b2b5ea.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	xitgfystk.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
1764	cmd.exe
2052	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
2052	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe
5076	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5076	rundll32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
1128	9aea85fb7cae5a2ee4ace73ab986553e0484f48278df1b8a2c3cd6cfd0b2b5ea.exe
1780	xitgfystk.exe
4732	wiseman.exe
4336	wiseman.exe
4732	wiseman.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1128 wrote to memory of 1764	1128	9aea85fb7cae5a2ee4ace73ab986553e0484f48278df1b8a2c3cd6cfd0b2b5ea.exe	79
PID 1764 wrote to memory of 2052	1764	cmd.exe	81
PID 1764 wrote to memory of 1780	1764	cmd.exe	82
PID 1780 wrote to memory of 5076	1780	xitgfystk.exe	83
PID 5076 wrote to memory of 4732	5076	rundll32.exe	84

C:\Users\Admin\AppData\Local\Temp\9aea85fb7cae5a2ee4ace73ab986553e0484f48278df1b8a2c3cd6cfd0b2b5ea.exe
"C:\Users\Admin\AppData\Local\Temp\9aea85fb7cae5a2ee4ace73ab986553e0484f48278df1b8a2c3cd6cfd0b2b5ea.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1128
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\xitgfystk.exe "C:\Users\Admin\AppData\Local\Temp\9aea85fb7cae5a2ee4ace73ab986553e0484f48278df1b8a2c3cd6cfd0b2b5ea.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1764
- - 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:2052
- - C:\Users\Admin\AppData\Local\Temp\xitgfystk.exe
    C:\Users\Admin\AppData\Local\Temp\\xitgfystk.exe "C:\Users\Admin\AppData\Local\Temp\9aea85fb7cae5a2ee4ace73ab986553e0484f48278df1b8a2c3cd6cfd0b2b5ea.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1780
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\evtql\ninun.iun",RAFlush C:\Users\Admin\AppData\Local\Temp\xitgfystk.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
      Suspicious use of WriteProcessMemory
      PID:5076
    - - C:\wiseman.exe
        
        "C:\wiseman.exe"
        5⤵
        Executes dropped EXE
        Adds Run key to start application
        System Location Discovery: System Language Discovery
        Suspicious use of SetWindowsHookEx
        
        PID:4732

C:\wiseman.exe
C:\wiseman.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:4336

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

xitgfystk.exe

Path C:\Users\Admin\AppData\Local\Temp\xitgfystk.exe
Size 639KB
SHA256 41c8beeb5619dbf690a3e38633a0bbcd31d14b207cd459a8d02561faa68fb255
MD5 0427e17fd0aa53d1c07079b0c54ea78d
SHA1 cde21efecb51e6297c175fc2a9f1e8be8ae470dc
SHA512 d9154dc0960d01740ecc4f815c8e71eab2920e299579a1678481d732e4dbfcc823314dc6bb8714ec88ad82522bc7f0fb7f5e90c0a8de480e2d237c9e979b50ae
SSDEEP 6144:PQJf3uMxrbLgEN6S7KzA5x3S5+y3D82oC0UdkgxgfOq:4J130ENL7kArI+y3XipfO
TLSH
T1DAD423F11D58D81FD1A441B3E99DF87235F1CCC0A8A50F225AF17A2DB7D900BBA29A31
MD5 SHA1 SHA512 SSDEEP TLSH

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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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ninun.iun

Path \??\c:\evtql\ninun.iun
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/1128-0-0x0000000000400000-0x000000000049E01B-memory.dmp

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memory/1128-2-0x0000000000400000-0x000000000049E01B-memory.dmp

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memory/1780-9-0x0000000000400000-0x000000000049E01B-memory.dmp

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memory/5076-12-0x0000000010000000-0x0000000010054000-memory.dmp

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memory/5076-16-0x0000000010000000-0x0000000010054000-memory.dmp

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memory/5076-18-0x0000000010000000-0x0000000010054000-memory.dmp

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memory/5076-20-0x0000000010000000-0x0000000010054000-memory.dmp

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