farfli | 5091c128ba5479d2035faa136df921b1eee47ed0050e51fb1c3f218de4cbf0c5

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
03/08/2026, 09:05

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General

Target
5091c128ba5479d2035faa136df921b1eee47ed0050e51fb1c3f218de4cbf0c5.exe
Size 649KB
Sample260803-k2mpssfb49
SHA256 5091c128ba5479d2035faa136df921b1eee47ed0050e51fb1c3f218de4cbf0c5
MD5 df1984d7f75b3a887f9308184e050a20
SHA1 5b17167b20b0340c51fd90f548bfeb281c9569f7
SHA512 39d12e985b43bfc73b9eb3a17cb723ceda27a747cb6808c50c9d83a7ede6372bace590601c3eba2ffa0e0361dba4c69d3e47e094bce0aced39a579e8e182529c
SSDEEP 6144:PQJf3uMxrbLgEN6S7KzA5x3S5+y3D82oC0UdkgxgfOqL:4J130ENL7kArI+y3XipfOo
TLSH
T1ADE412F11964E42FE09850B6E759E83266E0DCC239B10B3293E5BB0DB3C590BF979235
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 2 IoCs

resource	yara_rule
behavioral1/memory/2900-17-0x0000000010000000-0x0000000010054000-memory.dmp	family_farfli
behavioral1/memory/2900-21-0x0000000010000000-0x0000000010054000-memory.dmp	family_farfli

Badlisted process makes network request 14 IoCs

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

flow	pid	Process
12	2900	rundll32.exe
13	2900	rundll32.exe
14	2900	rundll32.exe
15	2900	rundll32.exe
22	2900	rundll32.exe
29	2900	rundll32.exe
34	2900	rundll32.exe
41	2900	rundll32.exe
49	2900	rundll32.exe
56	2900	rundll32.exe
59	2900	rundll32.exe
64	2900	rundll32.exe
67	2900	rundll32.exe
68	2900	rundll32.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\Control Panel\International\Geo\Nation	rundll32.exe

Deletes itself 1 IoCs

pid	Process
2132	jqjnrb.exe

Executes dropped EXE 3 IoCs

pid	Process
2132	jqjnrb.exe
4200	wiseman.exe
1724	wiseman.exe

Loads dropped DLL 1 IoCs

pid	Process
2900	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-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Wiseman = "C:\\wiseman.exe"	wiseman.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-876885714-46325919-1482798410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\khpsdy\\njvhv.jhn\",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)	\??\i:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\x:	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

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
4232	cmd.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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jqjnrb.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
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	5091c128ba5479d2035faa136df921b1eee47ed0050e51fb1c3f218de4cbf0c5.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
4232	cmd.exe
4176	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
4176	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe
2900	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2900	rundll32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3040	5091c128ba5479d2035faa136df921b1eee47ed0050e51fb1c3f218de4cbf0c5.exe
2132	jqjnrb.exe
4200	wiseman.exe
1724	wiseman.exe
4200	wiseman.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3040 wrote to memory of 4232	3040	5091c128ba5479d2035faa136df921b1eee47ed0050e51fb1c3f218de4cbf0c5.exe	88
PID 4232 wrote to memory of 4176	4232	cmd.exe	90
PID 4232 wrote to memory of 2132	4232	cmd.exe	91
PID 2132 wrote to memory of 2900	2132	jqjnrb.exe	92
PID 2900 wrote to memory of 4200	2900	rundll32.exe	93

C:\Users\Admin\AppData\Local\Temp\5091c128ba5479d2035faa136df921b1eee47ed0050e51fb1c3f218de4cbf0c5.exe
"C:\Users\Admin\AppData\Local\Temp\5091c128ba5479d2035faa136df921b1eee47ed0050e51fb1c3f218de4cbf0c5.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3040
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\jqjnrb.exe "C:\Users\Admin\AppData\Local\Temp\5091c128ba5479d2035faa136df921b1eee47ed0050e51fb1c3f218de4cbf0c5.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:4232
- - 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:4176
- - C:\Users\Admin\AppData\Local\Temp\jqjnrb.exe
    C:\Users\Admin\AppData\Local\Temp\\jqjnrb.exe "C:\Users\Admin\AppData\Local\Temp\5091c128ba5479d2035faa136df921b1eee47ed0050e51fb1c3f218de4cbf0c5.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2132
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\khpsdy\njvhv.jhn",RAFlush C:\Users\Admin\AppData\Local\Temp\jqjnrb.exe
      4⤵
      Badlisted process makes network request
      Checks computer location settings
      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:2900
    - - 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:4200

C:\wiseman.exe
C:\wiseman.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:1724

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

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

jqjnrb.exe

Path C:\Users\Admin\AppData\Local\Temp\jqjnrb.exe
Size 650KB
SHA256 b24627800e61c1d78dd5157b48d8a4a472af40b754414bb5c9959aad6f8942f0
MD5 5d027e7d3488b38cb0a7fc2943e2e92e
SHA1 214031ef9752c18633719e43d9227d61b5c7c5da
SHA512 9a42a38994101da505302ce243e8a9a3e2539ced5d090206338ca3c876f13a9b54a620bdfd882695cc7c9d6e4b5fcf2864474a3378c9ffbfc0d1c03c9b2e36cf
SSDEEP 6144:PQJf3uMxrbLgEN6S7KzA5x3S5+y3D82oC0UdkgxgfOq:4J130ENL7kArI+y3XipfO
TLSH
T10EE412F11964E42FE09850B6E759E83266E0DCC239B10B3293E5BB0DB3C590BF979235
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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njvhv.jhn

Path \??\c:\khpsdy\njvhv.jhn
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/2132-9-0x0000000000400000-0x000000000049E01B-memory.dmp

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memory/2900-12-0x0000000010000000-0x0000000010054000-memory.dmp

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memory/2900-17-0x0000000010000000-0x0000000010054000-memory.dmp

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memory/2900-21-0x0000000010000000-0x0000000010054000-memory.dmp

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memory/3040-0-0x0000000000400000-0x000000000049E01B-memory.dmp

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memory/3040-2-0x0000000000400000-0x000000000049E01B-memory.dmp

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