farfli | 554f0324d26704998d7c628b71bd0eb78f72ae4fab75164bd33c0b1d1d66d785

Analysis

max time kernel
149s
max time network
136s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
04/05/2026, 03:47

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General

Target
2026-05-04_73c227bd1eb33e37c7584f2769d5bba4_elex_wannacry.exe
Size 99KB
Sample260504-ecm2daby2y
SHA256 554f0324d26704998d7c628b71bd0eb78f72ae4fab75164bd33c0b1d1d66d785
MD5 73c227bd1eb33e37c7584f2769d5bba4
SHA1 e68234c9faa571c6949ad9a6741593478f48f796
SHA512 634f9427b403062ad120b6e383cf37a0fe99e1bf5c1e167683b57df3c790f99372dff990403c2e8303d650175bbf78fe39c9bd83826a26328f69d3d2328445b5
SSDEEP 3072:xK4RNx6nb4RoIw/XBSeral6oaE0HGnvXuEOrc0p:xl6XYeel6GGGVO
TLSH
T158A3AE479BB549D5E0210CF4026B7B35837698892B15A797D388DE0EE43DE81EF362CA
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery farfli persistence spyware stealer upx

Malware Config

Signatures

Family: Farfli
Farfli is a Windows backdoor written in C++.
backdoor farfli

Detects Farfli Backdoor 3 IoCs

resource	yara_rule
behavioral2/memory/3744-11-0x0000000010000000-0x0000000010024000-memory.dmp	family_farfli
behavioral2/memory/3744-15-0x0000000010000000-0x0000000010024000-memory.dmp	family_farfli
behavioral2/memory/3744-19-0x0000000010000000-0x0000000010024000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral2/memory/3744-11-0x0000000010000000-0x0000000010024000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3744-15-0x0000000010000000-0x0000000010024000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3744-19-0x0000000010000000-0x0000000010024000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 6 IoCs

resource	yara_rule
behavioral2/memory/1760-7-0x0000000000400000-0x0000000000417000-memory.dmp	UPX
behavioral2/files/0x001a00000002b38c-8.dat	UPX
behavioral2/memory/3744-10-0x0000000010000000-0x0000000010024000-memory.dmp	UPX
behavioral2/memory/3744-11-0x0000000010000000-0x0000000010024000-memory.dmp	UPX
behavioral2/memory/3744-15-0x0000000010000000-0x0000000010024000-memory.dmp	UPX
behavioral2/memory/3744-19-0x0000000010000000-0x0000000010024000-memory.dmp	UPX

Badlisted process makes network request 8 IoCs

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

flow	pid	Process
1	3744	rundll32.exe
2	3744	rundll32.exe
4	3744	rundll32.exe
3	3744	rundll32.exe
6	3744	rundll32.exe
7	3744	rundll32.exe
8	3744	rundll32.exe
11	3744	rundll32.exe

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral2/files/0x001a00000002b38c-8.dat	acprotect

Deletes itself 1 IoCs

pid	Process
1760	kypgs.exe

Executes dropped EXE 1 IoCs

pid	Process
1760	kypgs.exe

Loads dropped DLL 1 IoCs

pid	Process
3744	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-1-5-21-3847269522-1618051987-1942096715-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\gshjj\\qgpyx.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)	\??\u:	rundll32.exe
File opened (read-only)	\??\z:	rundll32.exe
File opened (read-only)	\??\g:	rundll32.exe
File opened (read-only)	\??\k:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\w:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\x:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\n:	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 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x001a00000002b38c-8.dat	upx
behavioral2/memory/3744-10-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral2/memory/3744-11-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral2/memory/3744-15-0x0000000010000000-0x0000000010024000-memory.dmp	upx
behavioral2/memory/3744-19-0x0000000010000000-0x0000000010024000-memory.dmp	upx

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	2026-05-04_73c227bd1eb33e37c7584f2769d5bba4_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	kypgs.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
1356	cmd.exe
4880	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
4880	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3744	rundll32.exe
3744	rundll32.exe
3744	rundll32.exe
3744	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3744	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2232	2026-05-04_73c227bd1eb33e37c7584f2769d5bba4_elex_wannacry.exe
1760	kypgs.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 1356	2232	2026-05-04_73c227bd1eb33e37c7584f2769d5bba4_elex_wannacry.exe	80
PID 1356 wrote to memory of 4880	1356	cmd.exe	82
PID 1356 wrote to memory of 1760	1356	cmd.exe	83
PID 1760 wrote to memory of 3744	1760	kypgs.exe	84

C:\Users\Admin\AppData\Local\Temp\2026-05-04_73c227bd1eb33e37c7584f2769d5bba4_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-04_73c227bd1eb33e37c7584f2769d5bba4_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2232
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&c:\kypgs.exe "C:\Users\Admin\AppData\Local\Temp\2026-05-04_73c227bd1eb33e37c7584f2769d5bba4_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1356
- - 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:4880
- - \??\c:\kypgs.exe
    c:\kypgs.exe "C:\Users\Admin\AppData\Local\Temp\2026-05-04_73c227bd1eb33e37c7584f2769d5bba4_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1760
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\gshjj\qgpyx.dll",init c:\kypgs.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:3744

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

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

kypgs.exe

Path C:\kypgs.exe
Size 99KB
SHA256 408cce8554583f0d7ee7505594ee6bfea9fe4a6025b9aa0abb116e0ba4163d0f
MD5 93da76a001dbbe42c0cc4b9bae8d291b
SHA1 9fc786789ee9c079e37ea141f95cecdaad60d11b
SHA512 25d2a3e67edba177cc44cef4cfdd1e2a2e2cc5b4895da044f527cb40ae9dd4cd349692180a65de33443d7cac1af0c18039699de5edea9d60ab1fc937c13827d2
SSDEEP 3072:xK4RNx6nb4RoIw/XBSeral6oaE0HGnvXuEOrc0pG:xl6XYeel6GGGVOw
TLSH
T138A3AE479BB549D5E0210CF4026B7B35837698893B15A797D388DE0EE43DE81EF362CA
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

qgpyx.dll

Path \??\c:\gshjj\qgpyx.dll
Size 46KB
SHA256 b6bc7902da0250f6ca920b35b222f6a0fe62102caf05d2a1722c4d3b225a0a9e
MD5 42fe886bcb6460f7c2a46e21ecac5da6
SHA1 7d9a1c9fe17121cf61444da965f29e974a95ede2
SHA512 3d1a7dc1d9ca8a4376302ba20df584ad59b98e0d3b18b06b22d7f5a455833ce124e412fc1922a3b704dcbafa31987cda3115c9a71dd6299683502cebae33567c
SSDEEP 768:P60NIyOvlPSGxZ00FBsMT0fdB5h3vU7ExCClpoduUglNgLoR/C:P6e4lP5rvz1Vd8H/C
TLSH
T10023F15733A8577BC9E621FA3263BE142B357019CB3A83545CB9B6572C21C8D927930F
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1760-7-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2232-0-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/2232-2-0x0000000000400000-0x0000000000417000-memory.dmp

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memory/3744-11-0x0000000010000000-0x0000000010024000-memory.dmp

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memory/3744-10-0x0000000010000000-0x0000000010024000-memory.dmp

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memory/3744-12-0x00000000026F0000-0x0000000002754000-memory.dmp

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memory/3744-15-0x0000000010000000-0x0000000010024000-memory.dmp

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memory/3744-16-0x00000000026F0000-0x0000000002754000-memory.dmp

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memory/3744-19-0x0000000010000000-0x0000000010024000-memory.dmp

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memory/3744-22-0x00000000026F0000-0x0000000002754000-memory.dmp

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memory/3744-29-0x00000000026F0000-0x0000000002754000-memory.dmp

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memory/3744-35-0x00000000026F0000-0x0000000002754000-memory.dmp

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