farfli | d218cc7e54fa949d716752ddd715e29ce712e964268f81250867994e9ad8c2ca

Analysis

max time kernel
149s
max time network
145s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
20/07/2026, 01:16

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General

Target
2026-07-19_73528619ff56003cc24e0e2e1dee95df_coinminer_elex_wannacry.exe
Size 294KB
Sample260720-bmtecsbs2r
SHA256 d218cc7e54fa949d716752ddd715e29ce712e964268f81250867994e9ad8c2ca
MD5 73528619ff56003cc24e0e2e1dee95df
SHA1 7e903974dbffc00b7548c173b142fb50b4ddf520
SHA512 ab2fc539dcceb66b67d47533121bc81a1d2276260df89d90e0f4627a5703eceb5446e1ba32c5f80da66a7461784b6c7c7fc8b43f0a9dce213b2d743c7a1132d1
SSDEEP 6144:glYAIeOcaxmlJaErfbMCurC7xS3ZMOBnskyrOx:ywLcCmuErglr73aAD+A
TLSH
T16E540282E501DF07EC3FC7B6813E1E291217AF621B705597D3C4B91E26B3682B63A0D9
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit 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 7 IoCs

resource	yara_rule
behavioral1/memory/1788-11-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral1/memory/1788-14-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral1/memory/1788-16-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral1/memory/1788-18-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral1/memory/1788-19-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral1/memory/1788-20-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral1/memory/1788-21-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 7 IoCs

resource	yara_rule
behavioral1/memory/1788-11-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1788-14-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1788-16-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1788-18-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1788-19-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1788-20-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/1788-21-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral1/memory/1588-0-0x0000000000400000-0x0000000000483000-memory.dmp	UPX
behavioral1/memory/1588-2-0x0000000000400000-0x0000000000483000-memory.dmp	UPX
behavioral1/files/0x001300000002428f-4.dat	UPX
behavioral1/memory/2728-7-0x0000000000400000-0x0000000000483000-memory.dmp	UPX

Badlisted process makes network request 8 IoCs

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

flow	pid	Process
6	1788	rundll32.exe
15	1788	rundll32.exe
18	1788	rundll32.exe
19	1788	rundll32.exe
24	1788	rundll32.exe
29	1788	rundll32.exe
46	1788	rundll32.exe
60	1788	rundll32.exe

Deletes itself 1 IoCs

pid	Process
2728	ttoevju.exe

Executes dropped EXE 1 IoCs

pid	Process
2728	ttoevju.exe

Loads dropped DLL 1 IoCs

pid	Process
1788	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-1-5-21-204488895-2999877624-296153668-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Wetor = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\cpasfmjqz\\dkiuohd.dll\",GetProc"	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)	\??\g:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\e:	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)	\??\h:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\u:	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)	\??\k:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\t:	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

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1588-0-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral1/memory/1588-2-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral1/files/0x001300000002428f-4.dat	upx
behavioral1/memory/2728-7-0x0000000000400000-0x0000000000483000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\cpasfmjqz	ttoevju.exe
File created	\??\c:\Program Files\cpasfmjqz\dkiuohd.dll	ttoevju.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
5084	cmd.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	2026-07-19_73528619ff56003cc24e0e2e1dee95df_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	ttoevju.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
5084	cmd.exe
4752	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
4752	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1788	rundll32.exe
1788	rundll32.exe
1788	rundll32.exe
1788	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1788	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1588	2026-07-19_73528619ff56003cc24e0e2e1dee95df_coinminer_elex_wannacry.exe
2728	ttoevju.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1588 wrote to memory of 5084	1588	2026-07-19_73528619ff56003cc24e0e2e1dee95df_coinminer_elex_wannacry.exe	86
PID 5084 wrote to memory of 4752	5084	cmd.exe	88
PID 5084 wrote to memory of 2728	5084	cmd.exe	89
PID 2728 wrote to memory of 1788	2728	ttoevju.exe	90

C:\Users\Admin\AppData\Local\Temp\2026-07-19_73528619ff56003cc24e0e2e1dee95df_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-19_73528619ff56003cc24e0e2e1dee95df_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1588
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ttoevju.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-19_73528619ff56003cc24e0e2e1dee95df_coinminer_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:5084
- - 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:4752
- - C:\Users\Admin\AppData\Local\Temp\ttoevju.exe
    C:\Users\Admin\AppData\Local\Temp\\ttoevju.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-19_73528619ff56003cc24e0e2e1dee95df_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:2728
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\cpasfmjqz\dkiuohd.dll",GetProc C:\Users\Admin\AppData\Local\Temp\ttoevju.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:1788

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

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

ttoevju.exe

Path C:\Users\Admin\AppData\Local\Temp\ttoevju.exe
Size 295KB
SHA256 88b94ed5bb4b336c836860eba73da20dcc66b8a48656b4c436a1bc3ba65f2ad1
MD5 bd92e8544bb3525f0d253eda34ec3d54
SHA1 4e05929b634de4254815945c5fede42e55881d54
SHA512 149a3e37381d9a7d7283445bac592750dfee5da6984ce442965a3f87ee9ff12aaf2eba872ff8cc882e8f539b28c464b914a462ad99ee9e90012a8811ea048925
SSDEEP 6144:glYAIeOcaxmlJaErfbMCurC7xS3ZMOBnskyrOk:ywLcCmuErglr73aAD+j
TLSH
T1F4540282E501DF17EC2FC7B6813E1E291217AF621B705597D3C4B91E26B3682B63E0D9
MD5 SHA1 SHA512 SSDEEP TLSH

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dkiuohd.dll

Path \??\c:\Program Files\cpasfmjqz\dkiuohd.dll
Size 218KB
SHA256 f12f9c5d0a6acd7519e6def517733b2c10e1d6fcd871268976b44f7fb906fa46
MD5 9eb0691b34f20f69c132100448b66528
SHA1 55ac6fb0ca242099b28dd15fb23a4ee2b3f41ec8
SHA512 26ec73bbf01cd633baf4a1a5d6f024681e3dd7fac16b3cae81e5fb4d3791861b1b12b0692f3bdbf62d0af1d5cf2f9771539b8d73a95bf32f86c23d65ea7fe3a1
SSDEEP 6144:KORxNwD2VOidhzeXwddDzLi5vOQEqscr0ZTJauytW:pnNwDTi3swddDiROXIA
TLSH
T13F241287CF983873C5223339597951A0B9325290AFA1534DD2E6D34FA072BA2CF7B531
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1588-2-0x0000000000400000-0x0000000000483000-memory.dmp

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memory/1588-0-0x0000000000400000-0x0000000000483000-memory.dmp

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memory/1788-16-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/1788-10-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/1788-13-0x0000000001440000-0x0000000001441000-memory.dmp

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memory/1788-11-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/1788-14-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/1788-18-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/1788-19-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/1788-20-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/1788-21-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/2728-7-0x0000000000400000-0x0000000000483000-memory.dmp

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