farfli | 66024ea0cc1255bbe430f5e09ae0a39b69ebd8416f684c6183a182f0e9848cd0

Analysis

max time kernel
148s
max time network
136s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
06/11/2026, 03:07

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General

Target
2026-11-05_f3a1663d397a9945f77063abd7adb32e_coinminer_elex_strictor_wannacry.exe
Size 206KB
Sample261106-dmrxmsaf74
SHA256 66024ea0cc1255bbe430f5e09ae0a39b69ebd8416f684c6183a182f0e9848cd0
MD5 f3a1663d397a9945f77063abd7adb32e
SHA1 efa1a53bca04cf159fc12371c3a9ab16bc8ffd51
SHA512 076382cf5d3c49c3b9cfad1549d57d00d79df1a9900719ae32d65f1bdc589c8e8d7e9bd8fc9c8b0926bc286a425359168f28ec2dfa49bd770f2a468bfd9f67b7
SSDEEP 1536:BJaacz5htqkUla/NGVcJ/gAqcX0JMseuiGSeNVvDi0tMuUJJny3GM+9oU:WaQqc9rqzMseNoVv9EJFnM8oU
TLSH
T1EB24480277E6C554F1B30B34DA3646F04ABBBC69EA70924F16407E5E7E32A41AD21737
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit defense_evasion discovery execution 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/3240-10-0x0000000010001000-0x0000000010021000-memory.dmp	family_farfli
behavioral2/memory/3240-9-0x0000000010000000-0x0000000010032000-memory.dmp	family_farfli
behavioral2/memory/3240-12-0x0000000010001000-0x0000000010021000-memory.dmp	family_farfli
behavioral2/memory/3240-11-0x0000000010000000-0x0000000010032000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral2/memory/3240-9-0x0000000010000000-0x0000000010032000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3240-11-0x0000000010000000-0x0000000010032000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/5028-0-0x0000000000400000-0x0000000000433000-memory.dmp	UPX
behavioral2/memory/5028-2-0x0000000000400000-0x0000000000433000-memory.dmp	UPX
behavioral2/files/0x000600000001b857-3.dat	UPX
behavioral2/memory/4912-6-0x0000000000400000-0x0000000000433000-memory.dmp	UPX

Badlisted process makes network request 8 IoCs

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

flow	pid	Process
8	3240	rundll32.exe
10	3240	rundll32.exe
11	3240	rundll32.exe
12	3240	rundll32.exe
13	3240	rundll32.exe
15	3240	rundll32.exe
17	3240	rundll32.exe
18	3240	rundll32.exe

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
4912	bhmbi.exe

Executes dropped EXE 1 IoCs

pid	Process
4912	bhmbi.exe

Loads dropped DLL 1 IoCs

pid	Process
3240	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-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\bthoy\\ldoxphmkp.dll\",init"	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)	\??\u:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\y:	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)	\??\m:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\i:	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)	\??\p:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\d:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\t:	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 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/5028-0-0x0000000000400000-0x0000000000433000-memory.dmp	upx
behavioral2/memory/5028-2-0x0000000000400000-0x0000000000433000-memory.dmp	upx
behavioral2/files/0x000600000001b857-3.dat	upx
behavioral2/memory/4912-6-0x0000000000400000-0x0000000000433000-memory.dmp	upx

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
3932	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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-11-05_f3a1663d397a9945f77063abd7adb32e_coinminer_elex_strictor_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	bhmbi.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
3932	cmd.exe
1156	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
1156	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3240	rundll32.exe
3240	rundll32.exe
3240	rundll32.exe
3240	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3240	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5028	2026-11-05_f3a1663d397a9945f77063abd7adb32e_coinminer_elex_strictor_wannacry.exe
4912	bhmbi.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5028 wrote to memory of 3932	5028	2026-11-05_f3a1663d397a9945f77063abd7adb32e_coinminer_elex_strictor_wannacry.exe	89
PID 3932 wrote to memory of 1156	3932	cmd.exe	91
PID 3932 wrote to memory of 4912	3932	cmd.exe	92
PID 4912 wrote to memory of 3240	4912	bhmbi.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-11-05_f3a1663d397a9945f77063abd7adb32e_coinminer_elex_strictor_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-11-05_f3a1663d397a9945f77063abd7adb32e_coinminer_elex_strictor_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5028
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\bhmbi.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-05_f3a1663d397a9945f77063abd7adb32e_coinminer_elex_strictor_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:3932
- - 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:1156
- - \??\c:\bhmbi.exe
    c:\bhmbi.exe "C:\Users\Admin\AppData\Local\Temp\2026-11-05_f3a1663d397a9945f77063abd7adb32e_coinminer_elex_strictor_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4912
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\bthoy\ldoxphmkp.dll",init c:\bhmbi.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:3240

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

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Downloads

bhmbi.exe

Path \??\c:\bhmbi.exe
Size 206KB
SHA256 deb8e6f0f1f96ffd4e72eee0b6d5e8c9c626e144180fa3c315be7c650c64697f
MD5 abe91c8f0ada05ad22bd3a243dcd5a6e
SHA1 c0f414441902e33c6cfd50233e12070aed6ec820
SHA512 72e1327a7718ffbca97e1ab0cb55ced2a68b0053210bf07eed04b8b5ae0bf5e54b38e9abb6c4baadbeb3daecd6ee17425b7b6395bdd2deb5c94ba9e2e2efb17e
SSDEEP 1536:BJaacz5htqkUla/NGVcJ/gAqcX0JMseuiGSeNVvDi0tMuUJJny3GM+9o6:WaQqc9rqzMseNoVv9EJFnM8o6
TLSH
T1A724480277E6C558F1B30B34DA3646F04ABBBC69EA70924F16407E5E7E32A41AD21737
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ldoxphmkp.dll

Path \??\c:\bthoy\ldoxphmkp.dll
Size 50KB
SHA256 a632527bcd457c9a4cfce83e7a9a675baff790b0279de5d8ea3192dfb2dd888a
MD5 ab32c5bfd7ecfbe9ed733dfb81210933
SHA1 4d5c6e7a0031691f12e78b096ff928b0d55bdfab
SHA512 59b971146292074d76d23d5f26889108f4d6e33804332449f4c589bf8a8d53e37ac8dfea47e9d3c5ae0f382ae1acf25c4968bea87b3f5ff9d51f2274229c1ab5
SSDEEP 1536:mrrG57ZqLLpf+Xz+HOtygmRnO/x5Rq8Gm:mwKGqutWM/x281
TLSH
T12033F1F4EFB4E067ECBA5F743E6A6215DA727B10C63188EA518090135F335CACA18717
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3240-10-0x0000000010001000-0x0000000010021000-memory.dmp

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memory/3240-9-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/3240-12-0x0000000010001000-0x0000000010021000-memory.dmp

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memory/3240-11-0x0000000010000000-0x0000000010032000-memory.dmp

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memory/4912-6-0x0000000000400000-0x0000000000433000-memory.dmp

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memory/5028-0-0x0000000000400000-0x0000000000433000-memory.dmp

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memory/5028-2-0x0000000000400000-0x0000000000433000-memory.dmp

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