farfli | ddbdcca63f6afa78ff677a2ca8eb6a53275ee51842d5f4fa7c5224da964bb740

General

Target
2026-04-21_2007c8b6fc8da909a42d6c9b5c76d30a_coinminer_elex_wannacry.exe
Size 409KB
Sample260421-jkr3hsdz2x
SHA256 ddbdcca63f6afa78ff677a2ca8eb6a53275ee51842d5f4fa7c5224da964bb740
MD5 2007c8b6fc8da909a42d6c9b5c76d30a
SHA1 17b8ff383a58f0e38a82278e85863920e1c454e6
SHA512 2694166861a6cfcc12ff7d16e817b7050a96bccb792486deaf51cf48c2422683578d98b90a996fc046186700c57ed997bd152704b959b0a71f4c12aae5a97550
SSDEEP 6144:TKgGmTBBuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F6LS:jGmTju+mMC4ITJE8dfSJ/F6
TLSH
T1D694D02272C08BA3C1866432CDA6EA7CD3E5CD689C705E3773E9F65EDD36941423A274
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/3264-7-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral2/memory/3264-9-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli
behavioral2/memory/3264-11-0x0000000010000000-0x0000000010067000-memory.dmp	family_farfli

Custom signature

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral2/memory/3264-7-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3264-9-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3264-11-0x0000000010000000-0x0000000010067000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Custom signature

UPX dump on OEP (original entry point) 1 IoCs

resource	yara_rule
behavioral2/files/0x001a00000002b331-2.dat	UPX

Badlisted process makes network request 4 IoCs

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

flow	pid	Process
1	3264	rundll32.exe
4	3264	rundll32.exe
5	3264	rundll32.exe
8	3264	rundll32.exe

Deletes itself 1 IoCs

pid	Process
3408	juiua.exe

Executes dropped EXE 1 IoCs

pid	Process
3408	juiua.exe

Loads dropped DLL 1 IoCs

pid	Process
3264	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-1-5-21-2122505878-652277452-2375749442-1000\Software\Microsoft\Windows\CurrentVersion\Run\D3D = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\qomxntuq\\salzladk.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)	\??\n:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\v:	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)	\??\w:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\u:	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\qomxntuq	juiua.exe
File created	\??\c:\Program Files\qomxntuq\salzladk.dll	juiua.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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-04-21_2007c8b6fc8da909a42d6c9b5c76d30a_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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	juiua.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
920	cmd.exe
2204	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
2204	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe
3264	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3264	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1868	2026-04-21_2007c8b6fc8da909a42d6c9b5c76d30a_coinminer_elex_wannacry.exe
3408	juiua.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1868 wrote to memory of 920	1868	2026-04-21_2007c8b6fc8da909a42d6c9b5c76d30a_coinminer_elex_wannacry.exe	80
PID 920 wrote to memory of 2204	920	cmd.exe	82
PID 920 wrote to memory of 3408	920	cmd.exe	83
PID 3408 wrote to memory of 3264	3408	juiua.exe	84

C:\Users\Admin\AppData\Local\Temp\2026-04-21_2007c8b6fc8da909a42d6c9b5c76d30a_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-04-21_2007c8b6fc8da909a42d6c9b5c76d30a_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1868
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\juiua.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-21_2007c8b6fc8da909a42d6c9b5c76d30a_coinminer_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:920
- - 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:2204
- - C:\Users\Admin\AppData\Local\Temp\juiua.exe
    C:\Users\Admin\AppData\Local\Temp\\juiua.exe "C:\Users\Admin\AppData\Local\Temp\2026-04-21_2007c8b6fc8da909a42d6c9b5c76d30a_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:3408
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\qomxntuq\salzladk.dll",InitEngine C:\Users\Admin\AppData\Local\Temp\juiua.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:3264

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

juiua.exe

Path C:\Users\Admin\AppData\Local\Temp\juiua.exe
Size 409KB
SHA256 7b81b597ec6f6afc771bfeb8184d256eb6dcf5761a73c93e0ab36f6f20071ed2
MD5 58ba7364bb697ad79a4474988c9bbe52
SHA1 f419cb2ee08af5bdd4e45fc9827737057de3ca4f
SHA512 146a9c302f9f01d229a077fe66321c9988be272db5673c619077f12c0e30e3adadb5925a5a3e7eb06f78c8a81205bd62e87ac809b4c458af2221ab0411c1cc7f
SSDEEP 6144:TKgGmTBBuFIsBMkVuq4nITJJVn0wOa7sNvYfSkk/F6LSQ:jGmTju+mMC4ITJE8dfSJ/F6/
TLSH
T14294D02272C08BA3C1866432CDA6EA7CD3E5CD689C705E3773E9F65EDD36941423A274
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

salzladk.dll

Path \??\c:\Program Files\qomxntuq\salzladk.dll
Size 176KB
SHA256 1b353b9f9ff404b05a2083028b4200a24fc27b4affc4c4868543ce8a35438e99
MD5 b5ee1ee58c0d74614de1dbcd048bc0a3
SHA1 5da687a8f9ce900dc439dde7d638ec199bf223fc
SHA512 6f102e88ff6305e5bbc6ad4b6d564fd99c616834446d4b18d9ea884f0dcd6acf36de01d2aa8c5b8065d78e650eb2fd02c40ef7a58ec6c1919a134223578dda72
SSDEEP 3072:KiDJQVl82dm+NBiPAaHDb0gL/CyGbEPVMnY0RVjatbmKb6DWSFoocr:1Jv2tOItshGYdMnYYVjasKbOWSFofr
TLSH
T120041261862D1C34D087B7717B05920DF6B452A49179CB93F7B8AF2B3D12AEA805E353
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3264-7-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/3264-10-0x000000001005A000-0x000000001005B000-memory.dmp

Download

memory/3264-9-0x0000000010000000-0x0000000010067000-memory.dmp

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memory/3264-11-0x0000000010000000-0x0000000010067000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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