farfli | 846a642b162bbb6f1db6deee54466f9fd0c23a41d5171ad2f4dbac96bb7b0de0

General

Target
2026-04-21_ff409d0d34a0165b3ed9b09170d0bae4_coinminer_elex_wannacry.exe
Size 409KB
Sample260421-2nhmcsds8q
SHA256 846a642b162bbb6f1db6deee54466f9fd0c23a41d5171ad2f4dbac96bb7b0de0
MD5 ff409d0d34a0165b3ed9b09170d0bae4
SHA1 e27a031512576393877d4531d914d79bcbbcc0f4
SHA512 dd7f800d405d180fad82098d12b87a1126bbb09ec6fc17b09dd1cf9c0185464fb43aa7d2d5a8734bb4ab5d882eb6a9f6b940d92f987a8c141be3455c41a14685
SSDEEP 6144:TKgGmTBBuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F6LS:jGmTju+mMC4ITJE8dfSJ/F6
TLSH
T11E94D02272C08BA3C1866432CDA6EA7CD3E5CD689C705E3773E9F65EDD36941423A274
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/2652-7-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral2/memory/2652-9-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral2/memory/2652-11-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral2/memory/2652-7-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2652-9-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2652-11-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 1 IoCs

resource	yara_rule
behavioral2/files/0x002a00000002b191-2.dat	UPX

Badlisted process makes network request 4 IoCs

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

flow	pid	Process
1	2652	rundll32.exe
3	2652	rundll32.exe
4	2652	rundll32.exe
5	2652	rundll32.exe

Deletes itself 1 IoCs

pid	Process
1460	ctpixeab.exe

Executes dropped EXE 1 IoCs

pid	Process
1460	ctpixeab.exe

Loads dropped DLL 1 IoCs

pid	Process
2652	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 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1383858298-2057492509-1726743289-1000\Software\Microsoft\Windows\CurrentVersion\Run\D3D = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\ufclqphyi\\hujrrvgg.dll\",InitEngine"	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)	\??\a:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\t:	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)	\??\j:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\x:	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

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\ufclqphyi	ctpixeab.exe
File created	\??\c:\Program Files\ufclqphyi\hujrrvgg.dll	ctpixeab.exe

System Location Discovery: System Language Discovery 1 TTPs 5 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	ctpixeab.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-04-21_ff409d0d34a0165b3ed9b09170d0bae4_coinminer_elex_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.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
4876	cmd.exe
1476	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
1476	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2652	rundll32.exe
2652	rundll32.exe
2652	rundll32.exe
2652	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2652	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3320	2026-04-21_ff409d0d34a0165b3ed9b09170d0bae4_coinminer_elex_wannacry.exe
1460	ctpixeab.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3320 wrote to memory of 4876	3320	2026-04-21_ff409d0d34a0165b3ed9b09170d0bae4_coinminer_elex_wannacry.exe	80
PID 4876 wrote to memory of 1476	4876	cmd.exe	82
PID 4876 wrote to memory of 1460	4876	cmd.exe	83
PID 1460 wrote to memory of 2652	1460	ctpixeab.exe	84

C:\Users\Admin\AppData\Local\Temp\2026-04-21_ff409d0d34a0165b3ed9b09170d0bae4_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-04-21_ff409d0d34a0165b3ed9b09170d0bae4_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3320
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ctpixeab.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-21_ff409d0d34a0165b3ed9b09170d0bae4_coinminer_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4876
- - 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:1476
- - C:\Users\Admin\AppData\Local\Temp\ctpixeab.exe
    C:\Users\Admin\AppData\Local\Temp\\ctpixeab.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-21_ff409d0d34a0165b3ed9b09170d0bae4_coinminer_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1460
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\ufclqphyi\hujrrvgg.dll",InitEngine C:\Users\Admin\AppData\Local\Temp\ctpixeab.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
      PID:2652

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

ctpixeab.exe

Path C:\Users\Admin\AppData\Local\Temp\ctpixeab.exe
Size 409KB
SHA256 d7f248ec34374cbd1beb9df74c2555cf4a6045803ea90b687780a72a4610272b
MD5 2c34732170627ed3a81f5f0c1ad8bb75
SHA1 e2f9cbecd94ec38821f8b8a1103548b8f9732676
SHA512 d51bb6a30279ebaf503aa420e494f5534e916976e7afdbf11efda64354567cf7a01d58fedaeed5e0e807e22bb8b532974b4f93a2a2c8f515cacbc2c399edcde6
SSDEEP 6144:TKgGmTBBuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F6LSO:jGmTju+mMC4ITJE8dfSJ/F6D
TLSH
T10094D02272C08BA3C1866432CDA6E67CD3E5CD689C705E3773E9F65EDE36941423A274
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

hujrrvgg.dll

Path \??\c:\Program Files\ufclqphyi\hujrrvgg.dll
Size 176KB
SHA256 f21b5367c994437080d4e1db1987d4e0ffbea061d73f3b6234c5e85205aa4c9b
MD5 10ad901dd846f6a3c7ec2c7dc5a1b92d
SHA1 41ff61f34ea7ce9896bea5a3dc73bb3d930b1451
SHA512 af56239044cb7a4ed7fde6a6e471c2c8a780f75271442224606b2b93ba7585f2d7b774a8d399fc646cb13bacebf3449f13033a2599db49f4fe6ab1128e5e67af
SSDEEP 3072:KiDJQVl82dm+NBiPAaHDb0gL/CyGbEPVMnY0RVjatbmKb6DWSFoocR:1Jv2tOItshGYdMnYYVjasKbOWSFofR
TLSH
T122041261862D1C34D087B7717B05920DF6B452A49179CB93F7B8AF2B3D12AEA806E353
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2652-7-0x0000000010000000-0x0000000010067000-memory.dmp

Download

memory/2652-9-0x0000000010000000-0x0000000010067000-memory.dmp

Download

memory/2652-8-0x000000001005A000-0x000000001005B000-memory.dmp

Download

memory/2652-11-0x0000000010000000-0x0000000010067000-memory.dmp

Download

memory/2652-12-0x0000000001FB0000-0x0000000002071000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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