farfli | 7632786d0ca513c5cc23c5781fee0c9f9262366d40e660b2ede1085032d88865

Analysis

max time kernel
149s
max time network
137s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
12/02/2026, 14:23

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General

Target
7632786d0ca513c5cc23c5781fee0c9f9262366d40e660b2ede1085032d88865.exe
Size 279KB
Sample260212-rp93wset2c
SHA256 7632786d0ca513c5cc23c5781fee0c9f9262366d40e660b2ede1085032d88865
MD5 e1f858ef2310912caad944de800a3317
SHA1 4a1259a1dd311789d1a11e5016b473ffef884b7a
SHA512 07adfbed8c2b2fd308ef447b63a9aa94df1d83bb6008cd3f2d00025fe0e13b27aac8dbccfbcfe2ab1e677c0e1f251f4e3df621f6d250f78a4f19daf9c1cbba0f
SSDEEP 6144:gQJf3uMxrbLgEN6S7KzA5x3S5+y3D82oC0UdkgxgfOqsG7H:nJ130ENL7kArI+y3XipfOK7
TLSH
T1AA5423E01A68D41FE0A50172D6A9A63366F0ECC07C660B2797E1BB1E76E440BFD35736
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery farfli persistence spyware stealer

Malware Config

Signatures

Detects Farfli Backdoor 3 IoCs

resource	yara_rule
behavioral2/memory/1168-18-0x0000000010000000-0x0000000010054000-memory.dmp	family_farfli
behavioral2/memory/1168-25-0x0000000010000000-0x0000000010054000-memory.dmp	family_farfli
behavioral2/memory/1168-31-0x0000000010000000-0x0000000010054000-memory.dmp	family_farfli

Farfli
Farfli is a Windows backdoor written in C++.
backdoor farfli
Farfli family
farfli

Badlisted process makes network request 8 IoCs

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

flow	pid	Process
1	1168	rundll32.exe
3	1168	rundll32.exe
5	1168	rundll32.exe
4	1168	rundll32.exe
6	1168	rundll32.exe
7	1168	rundll32.exe
8	1168	rundll32.exe
10	1168	rundll32.exe

Deletes itself 1 IoCs

pid	Process
3940	suorr.exe

Executes dropped EXE 3 IoCs

pid	Process
3940	suorr.exe
1888	wiseman.exe
3428	wiseman.exe

Loads dropped DLL 1 IoCs

pid	Process
1168	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-1-5-21-2397528088-2630719772-1129911217-1000\Software\Microsoft\Windows\CurrentVersion\Run\Wiseman = "C:\\wiseman.exe"	wiseman.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2397528088-2630719772-1129911217-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\nwprlzfyi\\pnzrazn.nrp\",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)	\??\x:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\h:	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)	\??\a:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\p:	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	7632786d0ca513c5cc23c5781fee0c9f9262366d40e660b2ede1085032d88865.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	suorr.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

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
5124	cmd.exe
5888	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
5888	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe
1168	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1168	rundll32.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
4360	7632786d0ca513c5cc23c5781fee0c9f9262366d40e660b2ede1085032d88865.exe
3940	suorr.exe
1888	wiseman.exe
3428	wiseman.exe
1888	wiseman.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4360 wrote to memory of 5124	4360	7632786d0ca513c5cc23c5781fee0c9f9262366d40e660b2ede1085032d88865.exe	79
PID 5124 wrote to memory of 5888	5124	cmd.exe	81
PID 5124 wrote to memory of 3940	5124	cmd.exe	82
PID 3940 wrote to memory of 1168	3940	suorr.exe	83
PID 1168 wrote to memory of 1888	1168	rundll32.exe	84

C:\Users\Admin\AppData\Local\Temp\7632786d0ca513c5cc23c5781fee0c9f9262366d40e660b2ede1085032d88865.exe
"C:\Users\Admin\AppData\Local\Temp\7632786d0ca513c5cc23c5781fee0c9f9262366d40e660b2ede1085032d88865.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4360
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\suorr.exe "C:\Users\Admin\AppData\Local\Temp\7632786d0ca513c5cc23c5781fee0c9f9262366d40e660b2ede1085032d88865.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:5124
- - 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:5888
- - C:\Users\Admin\AppData\Local\Temp\suorr.exe
    C:\Users\Admin\AppData\Local\Temp\\suorr.exe "C:\Users\Admin\AppData\Local\Temp\7632786d0ca513c5cc23c5781fee0c9f9262366d40e660b2ede1085032d88865.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3940
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\nwprlzfyi\pnzrazn.nrp",RAFlush C:\Users\Admin\AppData\Local\Temp\suorr.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:1168
    - - 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:1888

C:\wiseman.exe
C:\wiseman.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:3428

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

suorr.exe

Path C:\Users\Admin\AppData\Local\Temp\suorr.exe
Size 280KB
SHA256 7fa97667d9b8895d001dafe0d8d3c4e7346d85bc531a1636e537165bdda14862
MD5 bbe238a62cb295ea3831f7f4296495f1
SHA1 f772a93a3918682e3ccf370a3b188415d2f72641
SHA512 2772cc16b118d2871934b6050202f6455451c43405162fb89322e6d84980d288bdc8111d4d3abf0d660c68a30211fc5c24d10db13801722d02803bac1dca3155
SSDEEP 6144:gQJf3uMxrbLgEN6S7KzA5x3S5+y3D82oC0UdkgxgfOqsG7H5:nJ130ENL7kArI+y3XipfOK7Z
TLSH
T1A95413E01A68C41FE0A50572D6A9A63366F0ECC07C660B2797E1BB1E76D540BFE35732
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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pnzrazn.nrp

Path \??\c:\nwprlzfyi\pnzrazn.nrp
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/1168-14-0x0000000010000000-0x0000000010054000-memory.dmp

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memory/1168-19-0x0000000002020000-0x00000000020BC000-memory.dmp

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memory/1168-18-0x0000000010000000-0x0000000010054000-memory.dmp

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memory/1168-25-0x0000000010000000-0x0000000010054000-memory.dmp

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memory/1168-31-0x0000000010000000-0x0000000010054000-memory.dmp

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memory/1888-21-0x00000000009C0000-0x0000000000A5C000-memory.dmp

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memory/3428-20-0x00000000006D0000-0x000000000076C000-memory.dmp

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memory/3940-10-0x00000000008F0000-0x000000000098C000-memory.dmp

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memory/3940-11-0x0000000000400000-0x000000000049E01B-memory.dmp

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memory/4360-3-0x0000000000A00000-0x0000000000A9C000-memory.dmp

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memory/4360-0-0x0000000000400000-0x000000000049E01B-memory.dmp

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memory/4360-2-0x0000000000400000-0x000000000049E01B-memory.dmp

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