farfli | e00c92d3f53428b785b247c69b58a388333bfc0a90a758949e4e4ce91021de01

Analysis

max time kernel
148s
max time network
137s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
27/07/2026, 08:41

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General

Target
2026-07-27_20195c0d818dfce1b8710e09a63b0a2e_coinminer_elex_wannacry.exe
Size 311KB
Sample260727-klen9ayhqa
SHA256 e00c92d3f53428b785b247c69b58a388333bfc0a90a758949e4e4ce91021de01
MD5 20195c0d818dfce1b8710e09a63b0a2e
SHA1 3b4040c6cb1c819130a79a05ec3d43c7b3cd1aa2
SHA512 94312b896515eb23550fb2607402e4b54bcf2585b39713a4591ada500050f092435b1997c78352e526fceba52feec96e5eae120749c3eacb34d30a25c95580fa
SSDEEP 6144:glYAIeOcaxmlJaErfbMCurC7xS3ZMOBnskyrO:ywLcCmuErglr73aAD+
TLSH
T15D64F142D511CF47FC2FCAB6823E1E355317AE553B205693D3C8BA1F65B2B42A63A0D8
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
behavioral2/memory/2360-9-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral2/memory/2360-11-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral2/memory/2360-15-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral2/memory/2360-17-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral2/memory/2360-18-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral2/memory/2360-19-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli
behavioral2/memory/2360-20-0x0000000010000000-0x0000000010058000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 7 IoCs

resource	yara_rule
behavioral2/memory/2360-9-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2360-11-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2360-15-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2360-17-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2360-18-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2360-19-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/2360-20-0x0000000010000000-0x0000000010058000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/2900-0-0x0000000000400000-0x0000000000483000-memory.dmp	UPX
behavioral2/memory/2900-2-0x0000000000400000-0x0000000000483000-memory.dmp	UPX
behavioral2/files/0x0008000000019cc1-3.dat	UPX
behavioral2/memory/3316-6-0x0000000000400000-0x0000000000483000-memory.dmp	UPX

Badlisted process makes network request 8 IoCs

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

flow	pid	Process
7	2360	rundll32.exe
10	2360	rundll32.exe
11	2360	rundll32.exe
12	2360	rundll32.exe
14	2360	rundll32.exe
16	2360	rundll32.exe
20	2360	rundll32.exe
21	2360	rundll32.exe

Deletes itself 1 IoCs

pid	Process
3316	ipqrs.exe

Executes dropped EXE 1 IoCs

pid	Process
3316	ipqrs.exe

Loads dropped DLL 1 IoCs

pid	Process
2360	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-1-5-21-1875162379-3804078649-638427191-1000\Software\Microsoft\Windows\CurrentVersion\Run\Wetor = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\olxpg\\sfbcapms.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)	\??\h:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
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)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\n:	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)	\??\z:	rundll32.exe
File opened (read-only)	\??\d:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\q:	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

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2900-0-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral2/memory/2900-2-0x0000000000400000-0x0000000000483000-memory.dmp	upx
behavioral2/files/0x0008000000019cc1-3.dat	upx
behavioral2/memory/3316-6-0x0000000000400000-0x0000000000483000-memory.dmp	upx

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\olxpg	ipqrs.exe
File created	\??\c:\Program Files\olxpg\sfbcapms.dll	ipqrs.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
5788	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	2026-07-27_20195c0d818dfce1b8710e09a63b0a2e_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	ipqrs.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
5788	cmd.exe
4744	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
4744	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2360	rundll32.exe
2360	rundll32.exe
2360	rundll32.exe
2360	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2360	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2900	2026-07-27_20195c0d818dfce1b8710e09a63b0a2e_coinminer_elex_wannacry.exe
3316	ipqrs.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2900 wrote to memory of 5788	2900	2026-07-27_20195c0d818dfce1b8710e09a63b0a2e_coinminer_elex_wannacry.exe	89
PID 5788 wrote to memory of 4744	5788	cmd.exe	91
PID 5788 wrote to memory of 3316	5788	cmd.exe	92
PID 3316 wrote to memory of 2360	3316	ipqrs.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-07-27_20195c0d818dfce1b8710e09a63b0a2e_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-27_20195c0d818dfce1b8710e09a63b0a2e_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2900
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ipqrs.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-27_20195c0d818dfce1b8710e09a63b0a2e_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:5788
- - 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:4744
- - C:\Users\Admin\AppData\Local\Temp\ipqrs.exe
    C:\Users\Admin\AppData\Local\Temp\\ipqrs.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-27_20195c0d818dfce1b8710e09a63b0a2e_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:3316
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\Program Files\olxpg\sfbcapms.dll",GetProc C:\Users\Admin\AppData\Local\Temp\ipqrs.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:2360

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

ipqrs.exe

Path C:\Users\Admin\AppData\Local\Temp\ipqrs.exe
Size 311KB
SHA256 545011a4c9f01885d87195ce12ca3f3b621495a231831a9bcb4b8575eeef7066
MD5 428f8341d587e6246c0b3029d60a2b30
SHA1 9c256dbb6266d8ff62213400a343966654d7641b
SHA512 fa58d1c35977772bd85984759263f48c48e130089dd0b564797953537b39f148f328df4c0ebafbd68f2bf6c8700bf7981fe6365007076bcf57a15dee538b4eff
SSDEEP 6144:glYAIeOcaxmlJaErfbMCurC7xS3ZMOBnskyrO/:ywLcCmuErglr73aAD+u
TLSH
T1E364F142D511CF47FC2FCAB6823E1E355317AE553B205693D3C8BA1F65B2B42A63A0D8
MD5 SHA1 SHA512 SSDEEP TLSH

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sfbcapms.dll

Path \??\c:\Program Files\olxpg\sfbcapms.dll
Size 218KB
SHA256 97d569da656be71d3060652653e6fbf7849f9545a1288fc3a1b2da11a8d07eb4
MD5 216c73787e525ddc979095e63eff4f33
SHA1 ac917b375eb7a32f4aab3135e5633545715c9c7a
SHA512 7162877b56911593070d6370862a37f2f21589d3fad7cb1fe02f31019c138a538fa66c70a8b0a031faab80667ee0dac7c2c0285e2cd889a8754c70502e81e979
SSDEEP 6144:KORxNwD2VOidhzeXwddDzLi5vOQEqscr0ZTJauyt9:pnNwDTi3swddDiROXI7
TLSH
T15724128BCF983873C5223379597951A0B9325290AFA1530DD2E6D34FA072BA2CF7B531
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/2360-15-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/2360-9-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/2360-14-0x0000000000910000-0x0000000000911000-memory.dmp

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memory/2360-13-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/2360-11-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/2360-17-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/2360-18-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/2360-19-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/2360-20-0x0000000010000000-0x0000000010058000-memory.dmp

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memory/2900-2-0x0000000000400000-0x0000000000483000-memory.dmp

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memory/2900-0-0x0000000000400000-0x0000000000483000-memory.dmp

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memory/3316-6-0x0000000000400000-0x0000000000483000-memory.dmp

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