farfli | b640a82080ab32a4043f7f0117c0cfc103d3c6213e4c22aebeeb8b4a4e79b26a

Analysis

max time kernel
149s
max time network
152s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260911-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
29/10/2026, 02:55

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General

Target
2026-10-28_ed4428a63a987d4ebb5c2e9833823ba8_elex_wannacry.exe
Size 225KB
Sample261029-denv1saa93
SHA256 b640a82080ab32a4043f7f0117c0cfc103d3c6213e4c22aebeeb8b4a4e79b26a
MD5 ed4428a63a987d4ebb5c2e9833823ba8
SHA1 9ed94aee7b0f71b8cebed82c9706ced83fb713ec
SHA512 8b12e5c0b54f124ab2f5f10e095c9f800aa6ec84518fd31f7018246a7e68874a904296dda0b67f7831c454782be5381da0097429cee0c3ae815cd5f0df167682
SSDEEP 6144:LMPTxAnyi9awI2WXyZPbwdpLr7FQXSzKD:4PTPjnCCdpOh
TLSH
T11634E011D692C1D9D07247F64E3BC53ADC1AAE261F0865C333867B6AA475EE0AF7102F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

aspackv2 backdoor bootkit defense_evasion discovery execution farfli persistence spyware stealer vmprotect

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/5648-10-0x0000000010000000-0x0000000010037000-memory.dmp	family_farfli
behavioral2/memory/5648-11-0x0000000010000000-0x0000000010037000-memory.dmp	family_farfli
behavioral2/memory/5648-12-0x0000000010000000-0x0000000010037000-memory.dmp	family_farfli
behavioral2/memory/5648-14-0x0000000010000000-0x0000000010037000-memory.dmp	family_farfli
behavioral2/memory/5648-15-0x0000000010000000-0x0000000010037000-memory.dmp	family_farfli
behavioral2/memory/5648-16-0x0000000010000000-0x0000000010037000-memory.dmp	family_farfli
behavioral2/memory/5648-17-0x0000000010000000-0x0000000010037000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 7 IoCs

resource	yara_rule
behavioral2/memory/5648-10-0x0000000010000000-0x0000000010037000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5648-11-0x0000000010000000-0x0000000010037000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5648-12-0x0000000010000000-0x0000000010037000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5648-14-0x0000000010000000-0x0000000010037000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5648-15-0x0000000010000000-0x0000000010037000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5648-16-0x0000000010000000-0x0000000010037000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5648-17-0x0000000010000000-0x0000000010037000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Detects executables packed with VMProtect. 13 IoCs

resource	yara_rule
behavioral2/memory/4108-0-0x0000000000400000-0x0000000000432000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4108-2-0x0000000000400000-0x0000000000432000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/files/0x000500000000053e-3.dat	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/928-6-0x0000000000400000-0x0000000000432000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/files/0x0005000000016b3c-7.dat	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/5648-9-0x0000000010000000-0x0000000010037000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/5648-10-0x0000000010000000-0x0000000010037000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/5648-11-0x0000000010000000-0x0000000010037000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/5648-12-0x0000000010000000-0x0000000010037000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/5648-14-0x0000000010000000-0x0000000010037000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/5648-15-0x0000000010000000-0x0000000010037000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/5648-16-0x0000000010000000-0x0000000010037000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/5648-17-0x0000000010000000-0x0000000010037000-memory.dmp	INDICATOR_EXE_Packed_VMProtect

Badlisted process makes network request 4 IoCs

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

flow	pid	Process
7	5648	rundll32.exe
9	5648	rundll32.exe
10	5648	rundll32.exe
11	5648	rundll32.exe

ASPack v2.12-2.42 1 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral2/files/0x0005000000016b3c-7.dat	aspack_v212_v242

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
928	ptueu.exe

Executes dropped EXE 1 IoCs

pid	Process
928	ptueu.exe

Loads dropped DLL 1 IoCs

pid	Process
5648	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

VMProtect packed file 9 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral2/files/0x0005000000016b3c-7.dat	vmprotect
behavioral2/memory/5648-9-0x0000000010000000-0x0000000010037000-memory.dmp	vmprotect
behavioral2/memory/5648-10-0x0000000010000000-0x0000000010037000-memory.dmp	vmprotect
behavioral2/memory/5648-11-0x0000000010000000-0x0000000010037000-memory.dmp	vmprotect
behavioral2/memory/5648-12-0x0000000010000000-0x0000000010037000-memory.dmp	vmprotect
behavioral2/memory/5648-14-0x0000000010000000-0x0000000010037000-memory.dmp	vmprotect
behavioral2/memory/5648-15-0x0000000010000000-0x0000000010037000-memory.dmp	vmprotect
behavioral2/memory/5648-16-0x0000000010000000-0x0000000010037000-memory.dmp	vmprotect
behavioral2/memory/5648-17-0x0000000010000000-0x0000000010037000-memory.dmp	vmprotect

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:\\xbvgm\\jjqtq.jtj\",Exit"	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)	\??\r:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\l:	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)	\??\x:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\u:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\d:	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)	\??\n:	rundll32.exe
File opened (read-only)	\??\o:	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
2572	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	2026-10-28_ed4428a63a987d4ebb5c2e9833823ba8_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	ptueu.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
2572	cmd.exe
4696	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
4696	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe
5648	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5648	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4108	2026-10-28_ed4428a63a987d4ebb5c2e9833823ba8_elex_wannacry.exe
928	ptueu.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4108 wrote to memory of 2572	4108	2026-10-28_ed4428a63a987d4ebb5c2e9833823ba8_elex_wannacry.exe	89
PID 2572 wrote to memory of 4696	2572	cmd.exe	91
PID 2572 wrote to memory of 928	2572	cmd.exe	92
PID 928 wrote to memory of 5648	928	ptueu.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-10-28_ed4428a63a987d4ebb5c2e9833823ba8_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-28_ed4428a63a987d4ebb5c2e9833823ba8_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4108
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ptueu.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-28_ed4428a63a987d4ebb5c2e9833823ba8_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:2572
- - 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:4696
- - C:\Users\Admin\AppData\Local\Temp\ptueu.exe
    C:\Users\Admin\AppData\Local\Temp\\ptueu.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-28_ed4428a63a987d4ebb5c2e9833823ba8_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:928
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\xbvgm\jjqtq.jtj",Exit C:\Users\Admin\AppData\Local\Temp\ptueu.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:5648

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

ptueu.exe

Path C:\Users\Admin\AppData\Local\Temp\ptueu.exe
Size 225KB
SHA256 8f8e5387fbb946514b62ee0b01ba6e991963a4fc4b67add6e980243c43993005
MD5 d7ca324d8d95cd8afa2023b5a143b40e
SHA1 0bfe437f12a0313e76c8d2338556ec50c60ed8a1
SHA512 d5d97142f04257bf462c322cee9b345e76533bce6d312b1bc499163d81af151a9526284522401dedf0f711195ee5b7e7ddbd69062147fac274434f5bad463c7c
SSDEEP 6144:LMPTxAnyi9awI2WXyZPbwdpLr7FQXSzK+:4PTPjnCCdpOI
TLSH
T1B234E011D692C1D9D07247F64E3BC53ACD1AAE261F0865C333867B6AA475EE0AF7102F
MD5 SHA1 SHA512 SSDEEP TLSH

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jjqtq.jtj

Path \??\c:\xbvgm\jjqtq.jtj
Size 128KB
SHA256 8fe1d9492012107c64090e2bbed51ca84f46f0828bd95b18326f776e694e3bcb
MD5 64597ebd5759f1c96d9c89ba91e6b9ae
SHA1 22b5c32c02e7d98384b5d364d4e88805a988e58a
SHA512 88cf508773b316acafafc5882dd6a50f895a4f444cfa0ef25781c0c5bbd8eba69e38b777460e66ee2cb25e6c61b699b0120788e00b2a0018bc02d07d644d076f
SSDEEP 3072:zjxNhLqeuecFnbG2BSyxqmImnttHdJOrGdnyANCfIc4wL:3xNhPlEnq2BSy4/mnTHdJOrg18l
TLSH
T1B9D301153654C57FC4FB5231C4A9DA3A8B723CA7E1264A8A71DC8E6F3D5900D8F423AC
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/928-6-0x0000000000400000-0x0000000000432000-memory.dmp

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memory/4108-0-0x0000000000400000-0x0000000000432000-memory.dmp

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memory/4108-2-0x0000000000400000-0x0000000000432000-memory.dmp

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memory/5648-10-0x0000000010000000-0x0000000010037000-memory.dmp

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memory/5648-9-0x0000000010000000-0x0000000010037000-memory.dmp

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memory/5648-11-0x0000000010000000-0x0000000010037000-memory.dmp

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memory/5648-12-0x0000000010000000-0x0000000010037000-memory.dmp

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memory/5648-14-0x0000000010000000-0x0000000010037000-memory.dmp

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memory/5648-15-0x0000000010000000-0x0000000010037000-memory.dmp

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memory/5648-16-0x0000000010000000-0x0000000010037000-memory.dmp

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memory/5648-17-0x0000000010000000-0x0000000010037000-memory.dmp

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