farfli | e2b9bdd91ddfcd05147ef1756111f19e39e7027cee0eef270bd01c90f7276f0f

General

Target
2026-06-30_fc8985263a433fea6245ec8231461804_coinminer_elex_wannacry.exe
Size 247KB
Sample260701-cdsl5sd19y
SHA256 e2b9bdd91ddfcd05147ef1756111f19e39e7027cee0eef270bd01c90f7276f0f
MD5 fc8985263a433fea6245ec8231461804
SHA1 7b607ddb072d6147eb32aef111dcb79012a2ae1f
SHA512 0657be5a474cb570fa170af6399fd1928a940c4fecf17d37f590d098060d17eb3ddfb9b81ab046801bec6799138dc32de33577981f71456054f05514b252a9e4
SSDEEP 6144:etatPE5Txnev1zQBgexOdw6rpI9FsbLOg:9PwTNCl+zGp60p
TLSH
T1F4447C1233E84869E5EA7E32CEB6A630D7FAE9759C33D66F03D4420D4E36904CB15366
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/1424-8-0x0000000010000000-0x0000000010038000-memory.dmp	family_farfli
behavioral2/memory/1424-10-0x0000000010000000-0x0000000010038000-memory.dmp	family_farfli
behavioral2/memory/1424-13-0x0000000010000000-0x0000000010038000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral2/memory/1424-8-0x0000000010000000-0x0000000010038000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1424-10-0x0000000010000000-0x0000000010038000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/1424-13-0x0000000010000000-0x0000000010038000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 6 IoCs

resource	yara_rule
behavioral2/files/0x0007000000016b43-1.dat	UPX
behavioral2/files/0x000e00000001c556-5.dat	UPX
behavioral2/memory/1424-7-0x0000000010000000-0x0000000010038000-memory.dmp	UPX
behavioral2/memory/1424-8-0x0000000010000000-0x0000000010038000-memory.dmp	UPX
behavioral2/memory/1424-10-0x0000000010000000-0x0000000010038000-memory.dmp	UPX
behavioral2/memory/1424-13-0x0000000010000000-0x0000000010038000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
1404	ixtqq.exe

Executes dropped EXE 2 IoCs

pid	Process
1404	ixtqq.exe
1424	kifn.exe

Loads dropped DLL 1 IoCs

pid	Process
1424	kifn.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-1-5-21-2132828192-1552876075-2324613956-1000\Software\Microsoft\Windows\CurrentVersion\Run\Vicity = "c:\\Program Files\\iokrb\\kifn.exe \"c:\\Program Files\\iokrb\\kifnk.dll\",Group"	kifn.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)	\??\i:	kifn.exe
File opened (read-only)	\??\l:	kifn.exe
File opened (read-only)	\??\m:	kifn.exe
File opened (read-only)	\??\n:	kifn.exe
File opened (read-only)	\??\u:	kifn.exe
File opened (read-only)	\??\a:	kifn.exe
File opened (read-only)	\??\k:	kifn.exe
File opened (read-only)	\??\y:	kifn.exe
File opened (read-only)	\??\j:	kifn.exe
File opened (read-only)	\??\o:	kifn.exe
File opened (read-only)	\??\p:	kifn.exe
File opened (read-only)	\??\s:	kifn.exe
File opened (read-only)	\??\v:	kifn.exe
File opened (read-only)	\??\x:	kifn.exe
File opened (read-only)	\??\b:	kifn.exe
File opened (read-only)	\??\g:	kifn.exe
File opened (read-only)	\??\h:	kifn.exe
File opened (read-only)	\??\r:	kifn.exe
File opened (read-only)	\??\t:	kifn.exe
File opened (read-only)	\??\w:	kifn.exe
File opened (read-only)	\??\z:	kifn.exe
File opened (read-only)	\??\q:	kifn.exe
File opened (read-only)	\??\d:	kifn.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	kifn.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000e00000001c556-5.dat	upx
behavioral2/memory/1424-7-0x0000000010000000-0x0000000010038000-memory.dmp	upx
behavioral2/memory/1424-8-0x0000000010000000-0x0000000010038000-memory.dmp	upx
behavioral2/memory/1424-10-0x0000000010000000-0x0000000010038000-memory.dmp	upx
behavioral2/memory/1424-13-0x0000000010000000-0x0000000010038000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	\??\c:\Program Files\iokrb\kifnk.dll	ixtqq.exe
File created	\??\c:\Program Files\iokrb\kifn.exe	ixtqq.exe
File opened for modification	\??\c:\Program Files\iokrb	ixtqq.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	ixtqq.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kifn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-06-30_fc8985263a433fea6245ec8231461804_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

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
5688	cmd.exe
1036	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	kifn.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kifn.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1036	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1424	kifn.exe
1424	kifn.exe
1424	kifn.exe
1424	kifn.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1424	kifn.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5924	2026-06-30_fc8985263a433fea6245ec8231461804_coinminer_elex_wannacry.exe
1404	ixtqq.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5924 wrote to memory of 5688	5924	2026-06-30_fc8985263a433fea6245ec8231461804_coinminer_elex_wannacry.exe	87
PID 5688 wrote to memory of 1036	5688	cmd.exe	89
PID 5688 wrote to memory of 1404	5688	cmd.exe	90
PID 1404 wrote to memory of 1424	1404	ixtqq.exe	91

C:\Users\Admin\AppData\Local\Temp\2026-06-30_fc8985263a433fea6245ec8231461804_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-30_fc8985263a433fea6245ec8231461804_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5924
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ixtqq.exe "C:\Users\Admin\AppData\Local\Temp\2026-06-30_fc8985263a433fea6245ec8231461804_coinminer_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:5688
- - 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:1036
- - C:\Users\Admin\AppData\Local\Temp\ixtqq.exe
    C:\Users\Admin\AppData\Local\Temp\\ixtqq.exe "C:\Users\Admin\AppData\Local\Temp\2026-06-30_fc8985263a433fea6245ec8231461804_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:1404
  - - \??\c:\Program Files\iokrb\kifn.exe
      "c:\Program Files\iokrb\kifn.exe" "c:\Program Files\iokrb\kifnk.dll",Group C:\Users\Admin\AppData\Local\Temp\ixtqq.exe
      4⤵
      Executes dropped EXE
      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:1424

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Pre-OS Boot

1

T1542

Bootkit

1

T1542.003

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Peripheral Device Discovery

Query Registry

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

kifn.exe

Path C:\Program Files\iokrb\kifn.exe
Size 51KB
SHA256 ce6bb7eddc83762c708d4a41709ae00371dbdc09b2a380f28fa60b1edf917473
MD5 2e068ce2770fde8d1af4cb114b98df1f
SHA1 b6f9c2775babb025b22f915c3047aa627d07c312
SHA512 998d695eb56375e63df7db16740b89deb2cf630ccbead8bcf84a921ec6f4a4f9aef2755b703f7190f332b2008ebcc949363bcf8f392d7d07246c255b5073ed35
SSDEEP 1536:6G9yoVEpHP29I3fbcJboSUge5N+CnC/maz9Rh:8pv2mbcJboce58wvOR
TLSH
T137336C236A0A49B3DFE231780A9D7232526DD862075541F7A61057EAFD243E2EE743CF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ixtqq.exe

Path C:\Users\Admin\AppData\Local\Temp\ixtqq.exe
Size 247KB
SHA256 de8b357425829cbd1c2e67640d7e8be10aa20e31256233f9a75a943994a92ec2
MD5 9667fc62c1ff7768c75262b128f339c0
SHA1 032f2b26a6c83e771355f7997bd89c3cb9cf4be5
SHA512 91e0e4327f6250240af755a7167bcf47f5c2cb103e9df5e124aebe0a7d97176eb812a5d409d9336627f0a8b2249f14ce2aae73a34a441135f70f721d403460e1
SSDEEP 6144:etatPE5Txnev1zQBgexOdw6rpI9FsbLO:9PwTNCl+zGp60
TLSH
T1A2447C1233E84869E5EA7E32CEB6A630D7FAE9759C33D66F03D4420D4E36904CB15366
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

kifnk.dll

Path \??\c:\Program Files\iokrb\kifnk.dll
Size 97KB
SHA256 e2765fca6e310c6f2c6198c4b55963980f696f17efaa4baaff3729a5cfae686d
MD5 8018045efc4fd30abe001cada357b232
SHA1 bd0870f2905649ff3877c05cd19dabf94ba18c62
SHA512 217cf9b6fbd0ada5ee79a3cdab3277dede6f34d00c470adf5ce50c1df40fe85966a074feb0019df979bc53d6bd258a08357c646fb5281944c8e6453686393b15
SSDEEP 3072:BDpG6gzgHr5tCmfk455ecDBkdq+SStvAbGO:5pG6Sg9txRk/SS6bGO
TLSH
T13CA301F6290D7DD6CB35483AD2528E35FA29EE348C589F887ECE6C13ACB8510E1645F1
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1424-7-0x0000000010000000-0x0000000010038000-memory.dmp

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memory/1424-8-0x0000000010000000-0x0000000010038000-memory.dmp

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memory/1424-10-0x0000000010000000-0x0000000010038000-memory.dmp

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memory/1424-13-0x0000000010000000-0x0000000010038000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads