farfli | 9f58e8e65af70aedba22ae07740151956a8ca29e47751731b32ebc1ca94ffccb

Analysis

max time kernel
150s
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
22/10/2026, 21:36

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General

Target
9f58e8e65af70aedba22ae07740151956a8ca29e47751731b32ebc1ca94ffccb.exe
Size 259KB
Sample261022-1f65bat1b1
SHA256 9f58e8e65af70aedba22ae07740151956a8ca29e47751731b32ebc1ca94ffccb
MD5 2bcc4c07cad2f0fc6f70277a013185ba
SHA1 d9b2b9d55e1ee4ff21ef570a47d0206af1ea21c2
SHA512 61bc8edc00eb66464986d3883f542070ea3b421ebbfe0d57a40a660f75dbdf0b9d392f56b1fbd0a766a0e3ffebc116cbff1344b50f261ce8a26ebc790b91256f
SSDEEP 6144:gQJf3uMxrbLgEN6S7KzA5x3S5+y3D82oC0UdkgxgfOqe:nJ130ENL7kArI+y3XipfOt
TLSH
T1234423F11958D81FE09441B3EA59F87235E1DCC278A50F325AE17B1DB3D900BFA29635
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
behavioral1/memory/5008-16-0x0000000010000000-0x0000000010054000-memory.dmp	family_farfli
behavioral1/memory/5008-18-0x0000000010000000-0x0000000010054000-memory.dmp	family_farfli
behavioral1/memory/5008-21-0x0000000010000000-0x0000000010054000-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
10	5008	rundll32.exe
16	5008	rundll32.exe
17	5008	rundll32.exe
18	5008	rundll32.exe
31	5008	rundll32.exe
32	5008	rundll32.exe
35	5008	rundll32.exe
40	5008	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-1-5-21-524788801-3318743092-4051225893-1000\Control Panel\International\Geo\Nation	rundll32.exe

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
832	dyardamk.exe

Executes dropped EXE 3 IoCs

pid	Process
832	dyardamk.exe
3548	wiseman.exe
2724	wiseman.exe

Loads dropped DLL 1 IoCs

pid	Process
5008	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-1-5-21-524788801-3318743092-4051225893-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Wiseman = "C:\\wiseman.exe"	wiseman.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-524788801-3318743092-4051225893-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\ffmnw\\pbyjy.bjp\",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)	\??\s:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\r:	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
1656	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\Hostname	wiseman.exe
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

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	9f58e8e65af70aedba22ae07740151956a8ca29e47751731b32ebc1ca94ffccb.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	dyardamk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wiseman.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
1656	cmd.exe
2116	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
2116	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe
5008	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5008	rundll32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3100	9f58e8e65af70aedba22ae07740151956a8ca29e47751731b32ebc1ca94ffccb.exe
832	dyardamk.exe
3548	wiseman.exe
2724	wiseman.exe
3548	wiseman.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 3100 wrote to memory of 1656	3100	9f58e8e65af70aedba22ae07740151956a8ca29e47751731b32ebc1ca94ffccb.exe	85
PID 1656 wrote to memory of 2116	1656	cmd.exe	87
PID 1656 wrote to memory of 832	1656	cmd.exe	88
PID 832 wrote to memory of 5008	832	dyardamk.exe	89
PID 5008 wrote to memory of 3548	5008	rundll32.exe	90

C:\Users\Admin\AppData\Local\Temp\9f58e8e65af70aedba22ae07740151956a8ca29e47751731b32ebc1ca94ffccb.exe
"C:\Users\Admin\AppData\Local\Temp\9f58e8e65af70aedba22ae07740151956a8ca29e47751731b32ebc1ca94ffccb.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3100
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\dyardamk.exe "C:\Users\Admin\AppData\Local\Temp\9f58e8e65af70aedba22ae07740151956a8ca29e47751731b32ebc1ca94ffccb.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:1656
- - 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:2116
- - C:\Users\Admin\AppData\Local\Temp\dyardamk.exe
    C:\Users\Admin\AppData\Local\Temp\\dyardamk.exe "C:\Users\Admin\AppData\Local\Temp\9f58e8e65af70aedba22ae07740151956a8ca29e47751731b32ebc1ca94ffccb.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:832
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\ffmnw\pbyjy.bjp",RAFlush C:\Users\Admin\AppData\Local\Temp\dyardamk.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)
      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:5008
    - - 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:3548

C:\wiseman.exe
C:\wiseman.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:2724

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

dyardamk.exe

Path C:\Users\Admin\AppData\Local\Temp\dyardamk.exe
Size 259KB
SHA256 4efe25b84674d76004f471f44f19e7c2224acb0e5d763136b0279fa4fc94c2de
MD5 6fbb957a7817e728e0c8921f01f84f5e
SHA1 0fdafc1b24c6945a2c2a58332bbe091eb989c2d9
SHA512 5df4f2202779adaaefbf01707448feaf168bacb8b78e684ace0e91a2252f1f2461096d4054d775c8d5c51411303a0833846dbba838f1d24131f92e7b032b38b6
SSDEEP 6144:gQJf3uMxrbLgEN6S7KzA5x3S5+y3D82oC0UdkgxgfOq:nJ130ENL7kArI+y3XipfO
TLSH
T18D4423F11958D81FE09441B3EA99F87235E1DCC278A50F325AE17B1DB3D900BFA29635
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

Submit Download

pbyjy.bjp

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

Submit Download

memory/832-9-0x0000000000400000-0x000000000049E01B-memory.dmp

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memory/3100-0-0x0000000000400000-0x000000000049E01B-memory.dmp

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memory/3100-2-0x0000000000400000-0x000000000049E01B-memory.dmp

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memory/5008-12-0x0000000010000000-0x0000000010054000-memory.dmp

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memory/5008-16-0x0000000010000000-0x0000000010054000-memory.dmp

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memory/5008-18-0x0000000010000000-0x0000000010054000-memory.dmp

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memory/5008-21-0x0000000010000000-0x0000000010054000-memory.dmp

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