farfli | 32c2ae570957c070707096154b1dd7bbea2b66eed01ffec530bec511231d1bb7

Analysis

max time kernel
149s
max time network
148s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
05/05/2026, 03:51

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General

Target
2026-05-05_8600fdf5a1cfe1687dd3e65d5e97148a_coinminer_elex_wannacry.exe
Size 171KB
Sample260505-eerscabz2n
SHA256 32c2ae570957c070707096154b1dd7bbea2b66eed01ffec530bec511231d1bb7
MD5 8600fdf5a1cfe1687dd3e65d5e97148a
SHA1 54a84e36eece8a00de759d858fc2e22bfd500903
SHA512 9cc5291821f8832837eff7f91a2111c3c564eaec0e8c02fd7421b195fcd2e0cbb123665739fb9f63c5b57b10d069992e524c5ad50f61e7ed76eefaef64ebb566
SSDEEP 3072:h1qLbqRhEAZqR29I5pmHr8/iOwkZ4YHvpzerWA0luLUqV:h0AZ42S5pp/dWYHBAWd+
TLSH
T11A04E101A759925AD733083F0727527DA6B97D384F1C75D3A7C86A2E9138EE0AA3121F
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 4 IoCs

resource	yara_rule
behavioral2/memory/1076-12-0x0000000010000000-0x000000001003A000-memory.dmp	family_farfli
behavioral2/memory/1076-16-0x0000000010000000-0x000000001003A000-memory.dmp	family_farfli
behavioral2/memory/1076-18-0x0000000010000000-0x000000001003A000-memory.dmp	family_farfli
behavioral2/memory/1076-20-0x0000000010000000-0x000000001003A000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 4 IoCs

resource	yara_rule
behavioral2/memory/1076-12-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1076-16-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1076-18-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1076-20-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

Detects executables packed with VMProtect. 4 IoCs

resource	yara_rule
behavioral2/memory/1076-12-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/1076-16-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/1076-18-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/1076-20-0x0000000010000000-0x000000001003A000-memory.dmp	INDICATOR_EXE_Packed_VMProtect

UPX dump on OEP (original entry point) 7 IoCs

resource	yara_rule
behavioral2/files/0x000700000000d3f6-3.dat	UPX
behavioral2/files/0x001a00000002b36b-7.dat	UPX
behavioral2/memory/1076-9-0x0000000010000000-0x000000001003A000-memory.dmp	UPX
behavioral2/memory/1076-12-0x0000000010000000-0x000000001003A000-memory.dmp	UPX
behavioral2/memory/1076-16-0x0000000010000000-0x000000001003A000-memory.dmp	UPX
behavioral2/memory/1076-18-0x0000000010000000-0x000000001003A000-memory.dmp	UPX
behavioral2/memory/1076-20-0x0000000010000000-0x000000001003A000-memory.dmp	UPX

Badlisted process makes network request 4 IoCs

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

flow	pid	Process
1	1076	rundll32.exe
3	1076	rundll32.exe
4	1076	rundll32.exe
5	1076	rundll32.exe

Deletes itself 1 IoCs

pid	Process
3248	yiiji.exe

Executes dropped EXE 1 IoCs

pid	Process
3248	yiiji.exe

Loads dropped DLL 1 IoCs

pid	Process
1076	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-1-5-21-3119821332-640943685-2562343641-1000\Software\Microsoft\Windows\CurrentVersion\Run\EvtMgr = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\anjxw\\wishb.ihw\",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)	\??\x:	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)	\??\w:	rundll32.exe
File opened (read-only)	\??\a:	rundll32.exe
File opened (read-only)	\??\o:	rundll32.exe
File opened (read-only)	\??\v:	rundll32.exe
File opened (read-only)	\??\y:	rundll32.exe
File opened (read-only)	\??\h:	rundll32.exe
File opened (read-only)	\??\i:	rundll32.exe
File opened (read-only)	\??\l:	rundll32.exe
File opened (read-only)	\??\m:	rundll32.exe
File opened (read-only)	\??\n:	rundll32.exe
File opened (read-only)	\??\q:	rundll32.exe
File opened (read-only)	\??\r:	rundll32.exe
File opened (read-only)	\??\t:	rundll32.exe
File opened (read-only)	\??\b:	rundll32.exe
File opened (read-only)	\??\e:	rundll32.exe
File opened (read-only)	\??\j:	rundll32.exe
File opened (read-only)	\??\p:	rundll32.exe
File opened (read-only)	\??\s:	rundll32.exe
File opened (read-only)	\??\u:	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 1 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000700000000d3f6-3.dat	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	2026-05-05_8600fdf5a1cfe1687dd3e65d5e97148a_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	yiiji.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
4592	cmd.exe
1656	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
1656	PING.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe
1076	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1076	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4260	2026-05-05_8600fdf5a1cfe1687dd3e65d5e97148a_coinminer_elex_wannacry.exe
3248	yiiji.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4260 wrote to memory of 4592	4260	2026-05-05_8600fdf5a1cfe1687dd3e65d5e97148a_coinminer_elex_wannacry.exe	79
PID 4592 wrote to memory of 1656	4592	cmd.exe	81
PID 4592 wrote to memory of 3248	4592	cmd.exe	82
PID 3248 wrote to memory of 1076	3248	yiiji.exe	83

C:\Users\Admin\AppData\Local\Temp\2026-05-05_8600fdf5a1cfe1687dd3e65d5e97148a_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-05_8600fdf5a1cfe1687dd3e65d5e97148a_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4260
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\yiiji.exe "C:\Users\Admin\AppData\Local\Temp\2026-05-05_8600fdf5a1cfe1687dd3e65d5e97148a_coinminer_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:4592
- - 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:1656
- - C:\Users\Admin\AppData\Local\Temp\yiiji.exe
    C:\Users\Admin\AppData\Local\Temp\\yiiji.exe "C:\Users\Admin\AppData\Local\Temp\2026-05-05_8600fdf5a1cfe1687dd3e65d5e97148a_coinminer_elex_wannacry.exe"
    3⤵
    - Deletes itself
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3248
  - - \??\c:\windows\SysWOW64\rundll32.exe
      c:\windows\system32\rundll32.exe "c:\anjxw\wishb.ihw",Exit C:\Users\Admin\AppData\Local\Temp\yiiji.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:1076

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

yiiji.exe

Path C:\Users\Admin\AppData\Local\Temp\yiiji.exe
Size 171KB
SHA256 2d4d5152e7cebee1d640d33e05cc4c0d7de18d47749717caf254816ef38686ed
MD5 dd9ae3c8230688cf54cfcd7d5b38f57a
SHA1 7bc772bcce84d214fdc87023c95020360e1712cb
SHA512 9c578cf809c3aaf1422d88ae5367089b21d518929e32bef495e5ef2987cb3f804b42acb85a99a5ce0c4f905b2452209465a61bed91fc08ea3ed2595dcf2128f7
SSDEEP 3072:h1qLbqRhEAZqR29I5pmHr8/iOwkZ4YHvpzerWA0luLUqVm:h0AZ42S5pp/dWYHBAWd+A
TLSH
T1AA04E101A759925AD733083F0727527DA6B97D384B1C75D3A7CC6A2E9138EE0AA3121F
MD5 SHA1 SHA512 SSDEEP TLSH

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wishb.ihw

Path \??\c:\anjxw\wishb.ihw
Size 116KB
SHA256 53a1a5f96fce740b377bb053a358c0a50c63dfafddb8925d9aca66c852420872
MD5 f05a84544193f908045a170532883815
SHA1 3ad06ef6cc572a5e363d7fe05dcde5e646445994
SHA512 eda15ad3d6656a0146fd9476b205d1aefb7f4f6ecd1ea73b46b39157bb62f99d531114fc5ea32de485382577a7cbff4ae0edd4efdab1706c9840a9d165bac2ff
SSDEEP 3072:fCp96vhbrOz3bCMqKZ0V4Slz+n14q1/Jo5z5i4:6p961rOrDrZddJoz5i4
TLSH
T170C302D9B720C9EDC7E2727884BF6271170B908E4879D22F6CEEF89294711D0F0425B6
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1076-9-0x0000000010000000-0x000000001003A000-memory.dmp

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memory/1076-10-0x0000000000A60000-0x0000000000ADB000-memory.dmp

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memory/1076-12-0x0000000010000000-0x000000001003A000-memory.dmp

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memory/1076-16-0x0000000010000000-0x000000001003A000-memory.dmp

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memory/1076-18-0x0000000010000000-0x000000001003A000-memory.dmp

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memory/1076-20-0x0000000010000000-0x000000001003A000-memory.dmp

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memory/3248-6-0x00000000009A0000-0x0000000000A1B000-memory.dmp

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memory/4260-1-0x00000000009C0000-0x0000000000A3B000-memory.dmp

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