farfli | efb18672fb1fe2ffa48e51f06069546f91670c1a2b20a50ffac4f5da72c24bc2

Analysis

max time kernel
148s
max time network
141s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
05/11/2026, 21:32

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
2026-11-04_8a3827e3e59dd8e1922381f0bbecf54b_elex_wannacry.exe
Size 107KB
Sample261105-1d16aady3z
SHA256 efb18672fb1fe2ffa48e51f06069546f91670c1a2b20a50ffac4f5da72c24bc2
MD5 8a3827e3e59dd8e1922381f0bbecf54b
SHA1 6fab483437ab1ee641f995e44e0a04a9f852d813
SHA512 c846e08f0a0cee2833c148e119939424811d34c27022bd353cc533b505bec538c7c16356157527722657eee6f6e3428a38cf82cdb8e2f3fd9d9c7919fb5a9ff8
SSDEEP 1536:cRiAXaKD5g4ZlYjqe2M4VlCmfvrr7EC6QucEqrtmA6AeSWt3SdL:KiAXaKDXZa/4VlCm7fE7QlEKtSNidL
TLSH
T179B3AE126BF5CD62E0665DB1177707654E77FC6A2D28831B8B90BA0E9C30F00EF243A9
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 4 IoCs

resource	yara_rule
behavioral2/memory/2792-9-0x0000000010000000-0x000000001002E000-memory.dmp	family_farfli
behavioral2/memory/2792-10-0x0000000010001000-0x000000001001E000-memory.dmp	family_farfli
behavioral2/memory/2792-11-0x0000000010000000-0x000000001002E000-memory.dmp	family_farfli
behavioral2/memory/2792-12-0x0000000010001000-0x000000001001E000-memory.dmp	family_farfli

Custom signature

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral2/memory/2792-9-0x0000000010000000-0x000000001002E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2792-11-0x0000000010000000-0x000000001002E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Badlisted process makes network request 8 IoCs

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

flow	pid	Process
8	2792	rundll32.exe
10	2792	rundll32.exe
11	2792	rundll32.exe
12	2792	rundll32.exe
13	2792	rundll32.exe
14	2792	rundll32.exe
16	2792	rundll32.exe
18	2792	rundll32.exe

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
1348	jkioc.exe

Executes dropped EXE 1 IoCs

pid	Process
1348	jkioc.exe

Loads dropped DLL 1 IoCs

pid	Process
2792	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-1-5-21-461973139-3212354679-1508698038-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\ocrdo\\sqlxnm.dll\",GetWindowClass"	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)	\??\d:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\z:	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

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
3168	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 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	rundll32.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	rundll32.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	jkioc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-11-04_8a3827e3e59dd8e1922381f0bbecf54b_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
3168	cmd.exe
2020	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
2020	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2792	rundll32.exe
2792	rundll32.exe
2792	rundll32.exe
2792	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2792	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3196	2026-11-04_8a3827e3e59dd8e1922381f0bbecf54b_elex_wannacry.exe
1348	jkioc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3196 wrote to memory of 3168	3196	2026-11-04_8a3827e3e59dd8e1922381f0bbecf54b_elex_wannacry.exe	89
PID 3168 wrote to memory of 2020	3168	cmd.exe	91
PID 3168 wrote to memory of 1348	3168	cmd.exe	92
PID 1348 wrote to memory of 2792	1348	jkioc.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-11-04_8a3827e3e59dd8e1922381f0bbecf54b_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-11-04_8a3827e3e59dd8e1922381f0bbecf54b_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3196
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\jkioc.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-04_8a3827e3e59dd8e1922381f0bbecf54b_elex_wannacry.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:3168
- - 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:2020
- - \??\c:\jkioc.exe
    c:\jkioc.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-04_8a3827e3e59dd8e1922381f0bbecf54b_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1348
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\ocrdo\sqlxnm.dll",GetWindowClass c:\jkioc.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)
      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
      PID:2792

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

Replay Monitor

Loading Replay Monitor...

Downloads

jkioc.exe

Path \??\c:\jkioc.exe
Size 107KB
SHA256 ac6042be42494288865ed6798a6fc301c0a0f368ee969b3a48952c9d2d6a75e3
MD5 11d6b0bce881e0c3d684089a6e992a3a
SHA1 1e73b6513abbe8e16b1329d025fc0749f0f5a537
SHA512 25ed718b79ef695b0cec55355b2c1ecebca967a736b472c69a39a31b03d07ea8049a231090c9b081217288be2d62137c5b33c52ac62b5338fa080514192a8f04
SSDEEP 1536:cRiAXaKD5g4ZlYjqe2M4VlCmfvrr7EC6QucEqrtmA6AeSWt3Sdg:KiAXaKDXZa/4VlCm7fE7QlEKtSNidg
TLSH
T166B3AF126BF5CDA6E0665DB1177707654E77FC6A2D28831B9B90BA0E9C30F00EF243A5
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

sqlxnm.dll

Path \??\c:\ocrdo\sqlxnm.dll
Size 46KB
SHA256 615e79da4fd5512e796a7aa7335791445c4419564a62065b96ec6af4f45c5da0
MD5 e1b69009b84a57990f394d671390ed02
SHA1 586cb5213c9cbdfe5ce94a284c324d917cc52903
SHA512 c78b9484fa33cf5379257ab965d56b229d696fe262367a180bf7b50691b0c51e5a07dc7b96be07cf977ea0aab9ce29c503c4f36c4009ec480e2fb0498ffc13bc
SSDEEP 768:KsUfnvxs6iLlhpfFPtnQf7kifD/v7yb9BEtoyviA1129Vvi3UTP:KsJT1qf4W/vub9yNiA118d+kP
TLSH
T17823F2A947B44EB3E2BD0779889187DC69BD6D26173384054A6301DF7C70443EA6C6EE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1348-6-0x0000000000400000-0x000000000041B000-memory.dmp

Download

memory/2792-9-0x0000000010000000-0x000000001002E000-memory.dmp

Download

memory/2792-10-0x0000000010001000-0x000000001001E000-memory.dmp

Download

memory/2792-11-0x0000000010000000-0x000000001002E000-memory.dmp

Download

memory/2792-12-0x0000000010001000-0x000000001001E000-memory.dmp

Download

memory/3196-0-0x0000000000400000-0x000000000041B000-memory.dmp

Download

memory/3196-2-0x0000000000400000-0x000000000041B000-memory.dmp

Download