farfli | 27650c1ce1592568dd73bec28e71e6db4c7a053514dd51fd694868dbb1e8bd44

Analysis

max time kernel
150s
max time network
148s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260706-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
08/07/2026, 22:43

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General

Target
2026-07-08_005ed826efc2c11c829a00af6177793e_coinminer_elex_wannacry.exe
Size 540KB
Sample260708-2np2faas9m
SHA256 27650c1ce1592568dd73bec28e71e6db4c7a053514dd51fd694868dbb1e8bd44
MD5 005ed826efc2c11c829a00af6177793e
SHA1 3fda971974b09cc3333f0da872f0ba73b6ea20ed
SHA512 932df695466fb62e652d4816a87974930d3d4ba60d5f6aaf89dece6c19f5b3ac0d901e81e7098f7ab1696bc0ed19a0b6c385cab37261235d511fd05759b1f0cc
SSDEEP 6144:T7fy6Ezozt81ENRd3Qs1OUdK8N+VQs7PlWlBjPKXPXwboCTms51t1wZXzYEGgJrF:Sbt1kRdAs1OYKPlWlBjifyPTmfWq
TLSH
T1B8C48D903D90C158CD2BC7B4A1EFB226E7256777E3765F8882C62053C6B54AF21A87CD
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit defense_evasion discovery farfli persistence spyware stealer upx

Malware Config

Signatures

Family: Farfli
Farfli is a Windows backdoor written in C++.
backdoor farfli

Detects Farfli Backdoor 4 IoCs

resource	yara_rule
behavioral2/memory/3544-11-0x0000000010000000-0x000000001002A000-memory.dmp	family_farfli
behavioral2/memory/3544-12-0x0000000010000000-0x000000001002A000-memory.dmp	family_farfli
behavioral2/memory/3544-14-0x0000000010000000-0x000000001002A000-memory.dmp	family_farfli
behavioral2/memory/3544-15-0x0000000010000000-0x000000001002A000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 4 IoCs

resource	yara_rule
behavioral2/memory/3544-11-0x0000000010000000-0x000000001002A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3544-12-0x0000000010000000-0x000000001002A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3544-14-0x0000000010000000-0x000000001002A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3544-15-0x0000000010000000-0x000000001002A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 7 IoCs

resource	yara_rule
behavioral2/files/0x000500000000053e-1.dat	UPX
behavioral2/files/0x0006000000016cb6-5.dat	UPX
behavioral2/memory/3544-7-0x0000000010000000-0x000000001002A000-memory.dmp	UPX
behavioral2/memory/3544-11-0x0000000010000000-0x000000001002A000-memory.dmp	UPX
behavioral2/memory/3544-12-0x0000000010000000-0x000000001002A000-memory.dmp	UPX
behavioral2/memory/3544-14-0x0000000010000000-0x000000001002A000-memory.dmp	UPX
behavioral2/memory/3544-15-0x0000000010000000-0x000000001002A000-memory.dmp	UPX

Badlisted process makes network request 8 IoCs

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

flow	pid	Process
1	3544	rundll32.exe
2	3544	rundll32.exe
3	3544	rundll32.exe
6	3544	rundll32.exe
7	3544	rundll32.exe
9	3544	rundll32.exe
10	3544	rundll32.exe
11	3544	rundll32.exe

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x0006000000016cb6-5.dat	acprotect

Deletes itself 1 IoCs

pid	Process
3324	sgpso.exe

Executes dropped EXE 3 IoCs

pid	Process
3324	sgpso.exe
936	wiseman.exe
6048	wiseman.exe

Loads dropped DLL 1 IoCs

pid	Process
3544	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-1-5-21-2532687178-1633831978-1202193935-1000\Software\Microsoft\Windows\CurrentVersion\Run\Wiseman = "C:\\wiseman.exe"	wiseman.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2532687178-1633831978-1202193935-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\npiank\\bycxu.yxb\",XML_MemFree"	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)	\??\o:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\d:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\m:	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

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000500000000053e-1.dat	upx
behavioral2/files/0x0006000000016cb6-5.dat	upx
behavioral2/memory/3544-7-0x0000000010000000-0x000000001002A000-memory.dmp	upx
behavioral2/memory/3544-11-0x0000000010000000-0x000000001002A000-memory.dmp	upx
behavioral2/memory/3544-12-0x0000000010000000-0x000000001002A000-memory.dmp	upx
behavioral2/memory/3544-14-0x0000000010000000-0x000000001002A000-memory.dmp	upx
behavioral2/memory/3544-15-0x0000000010000000-0x000000001002A000-memory.dmp	upx

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 8 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	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-07-08_005ed826efc2c11c829a00af6177793e_coinminer_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.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	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sgpso.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
4048	cmd.exe
3484	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

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
3940	taskkill.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3484	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe
3544	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3544	rundll32.exe
Token: SeDebugPrivilege	3940	taskkill.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
5924	2026-07-08_005ed826efc2c11c829a00af6177793e_coinminer_elex_wannacry.exe
3324	sgpso.exe
936	wiseman.exe
6048	wiseman.exe
936	wiseman.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5924 wrote to memory of 4048	5924	2026-07-08_005ed826efc2c11c829a00af6177793e_coinminer_elex_wannacry.exe	88
PID 4048 wrote to memory of 3484	4048	cmd.exe	90
PID 4048 wrote to memory of 3324	4048	cmd.exe	91
PID 3324 wrote to memory of 3544	3324	sgpso.exe	92
PID 3544 wrote to memory of 3940	3544	rundll32.exe	93
PID 3544 wrote to memory of 936	3544	rundll32.exe	96

C:\Users\Admin\AppData\Local\Temp\2026-07-08_005ed826efc2c11c829a00af6177793e_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-08_005ed826efc2c11c829a00af6177793e_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5924
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\sgpso.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-08_005ed826efc2c11c829a00af6177793e_coinminer_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4048
- - 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:3484
- - C:\Users\Admin\AppData\Local\Temp\sgpso.exe
    C:\Users\Admin\AppData\Local\Temp\\sgpso.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-08_005ed826efc2c11c829a00af6177793e_coinminer_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3324
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\npiank\bycxu.yxb",XML_MemFree C:\Users\Admin\AppData\Local\Temp\sgpso.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:3544
    - - \??\c:\windows\SysWOW64\taskkill.exe
        
        taskkill /f /im attrib.exe
        5⤵
        System Location Discovery: System Language Discovery
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:3940
    - - 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:936

C:\wiseman.exe
C:\wiseman.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:6048

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

sgpso.exe

Path C:\Users\Admin\AppData\Local\Temp\sgpso.exe
Size 540KB
SHA256 3c1fb506f7e4b4e95b096ebb5bce0221d7e7b6b2434b8fabe73b68146dce196d
MD5 afd91810e9aed44a71d8e6568b708896
SHA1 b79b271ea6fd1e1e6560c24819911ac55bc1cb7a
SHA512 555045f7b0b1644280d0a530c70df9d5968112c36cfd556dd779a05294be1b77aa24fa9280b956bd9a1953bdac723a07b39516b62b39deac9dcd2e708958de92
SSDEEP 6144:T7fy6Ezozt81ENRd3Qs1OUdK8N+VQs7PlWlBjPKXPXwboCTms51t1wZXzYEGgJrO:Sbt1kRdAs1OYKPlWlBjifyPTmfWqc
TLSH
T147C48D903D90C158CD2BC7B4A1EFB226E7256777E3765F8882C62053C6B54AF21A87CD
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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bycxu.yxb

Path \??\c:\npiank\bycxu.yxb
Size 62KB
SHA256 49d6d364a910ad716fa3ad6229479b2af0f0451ed41e9adc7d8537801cd67c2a
MD5 fb1d904d905d0f177e0fe9d0ac8a44a5
SHA1 c3b5ce7e61697e8e604cde525770e002175f2f96
SHA512 07bc9a2f0281fa6f99d5a0554190fa5671fc2c8bf1029f22745ddc73f33d7f57850104aec3d83c131f870b2f5197831a9e7f073f10596560c3117d2a37935647
SSDEEP 1536:iENl4kZ3EPAw8xUo424hzcz89VUtTqwpCyFzy1yY:iC4kZUP0t4HSz8PUEwA2zyx
TLSH
T17B53E18A2BF4140BECC5AB799695CE33F875F39E0F2C8A8642B1C6D6AC66360775C105
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/3544-7-0x0000000010000000-0x000000001002A000-memory.dmp

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memory/3544-11-0x0000000010000000-0x000000001002A000-memory.dmp

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memory/3544-12-0x0000000010000000-0x000000001002A000-memory.dmp

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memory/3544-14-0x0000000010000000-0x000000001002A000-memory.dmp

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memory/3544-15-0x0000000010000000-0x000000001002A000-memory.dmp

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