farfli | 8ce59e540cdf69b33af4275c1c74a25ecad2bd605dec665fe6eb2d3e03c9d603

General

Target
2026-09-14_783b1b0e17ac3d3a96a3e86191fcb90a_coinminer_elex_wannacry.exe
Size 290KB
Sample260915-ltxqgafm5s
SHA256 8ce59e540cdf69b33af4275c1c74a25ecad2bd605dec665fe6eb2d3e03c9d603
MD5 783b1b0e17ac3d3a96a3e86191fcb90a
SHA1 72f77163a500c1d625ec775e496269743ef7cbb3
SHA512 d26abc857c9caaf43bbc74c312bdf7b1274de4e6a4d3b5899b2568d03e022ed30db802b503342bb4f66b1c5d796a6a5a11a1c74ea44b0a5eee3b81663375ddc7
SSDEEP 3072:etaoOzbY5l/Tx1DNgcbouGYefD5h1zZCBgb3EInA3rdCKA9bwpfMrgsAHuskkycX:etatPE5Txnev1zQBgexOdw6rpI9FsIL
TLSH
T1C7547C1233E44869E4EA3E72CE76A630D7FAE875AC33D67B03D4430D5A36A04CB55366
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 3 IoCs

resource	yara_rule
behavioral2/memory/4084-8-0x0000000010000000-0x0000000010038000-memory.dmp	family_farfli
behavioral2/memory/4084-10-0x0000000010000000-0x0000000010038000-memory.dmp	family_farfli
behavioral2/memory/4084-13-0x0000000010000000-0x0000000010038000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral2/memory/4084-8-0x0000000010000000-0x0000000010038000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4084-10-0x0000000010000000-0x0000000010038000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/4084-13-0x0000000010000000-0x0000000010038000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 6 IoCs

resource	yara_rule
behavioral2/files/0x000600000001b857-1.dat	UPX
behavioral2/files/0x000e00000001c493-5.dat	UPX
behavioral2/memory/4084-7-0x0000000010000000-0x0000000010038000-memory.dmp	UPX
behavioral2/memory/4084-8-0x0000000010000000-0x0000000010038000-memory.dmp	UPX
behavioral2/memory/4084-10-0x0000000010000000-0x0000000010038000-memory.dmp	UPX
behavioral2/memory/4084-13-0x0000000010000000-0x0000000010038000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
1260	czmqnv.exe

Executes dropped EXE 2 IoCs

pid	Process
1260	czmqnv.exe
4084	djh.exe

Loads dropped DLL 1 IoCs

pid	Process
4084	djh.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-1-5-21-4154726816-2055034831-2297277433-1000\Software\Microsoft\Windows\CurrentVersion\Run\Vicity = "c:\\Program Files\\tbtxc\\djh.exe \"c:\\Program Files\\tbtxc\\djhwi.dll\",Group"	djh.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)	\??\p:	djh.exe
File opened (read-only)	\??\v:	djh.exe
File opened (read-only)	\??\x:	djh.exe
File opened (read-only)	\??\y:	djh.exe
File opened (read-only)	\??\z:	djh.exe
File opened (read-only)	\??\a:	djh.exe
File opened (read-only)	\??\h:	djh.exe
File opened (read-only)	\??\i:	djh.exe
File opened (read-only)	\??\j:	djh.exe
File opened (read-only)	\??\t:	djh.exe
File opened (read-only)	\??\b:	djh.exe
File opened (read-only)	\??\d:	djh.exe
File opened (read-only)	\??\r:	djh.exe
File opened (read-only)	\??\s:	djh.exe
File opened (read-only)	\??\w:	djh.exe
File opened (read-only)	\??\g:	djh.exe
File opened (read-only)	\??\k:	djh.exe
File opened (read-only)	\??\o:	djh.exe
File opened (read-only)	\??\q:	djh.exe
File opened (read-only)	\??\u:	djh.exe
File opened (read-only)	\??\l:	djh.exe
File opened (read-only)	\??\m:	djh.exe
File opened (read-only)	\??\n:	djh.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	djh.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000e00000001c493-5.dat	upx
behavioral2/memory/4084-7-0x0000000010000000-0x0000000010038000-memory.dmp	upx
behavioral2/memory/4084-8-0x0000000010000000-0x0000000010038000-memory.dmp	upx
behavioral2/memory/4084-10-0x0000000010000000-0x0000000010038000-memory.dmp	upx
behavioral2/memory/4084-13-0x0000000010000000-0x0000000010038000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\tbtxc	czmqnv.exe
File created	\??\c:\Program Files\tbtxc\djhwi.dll	czmqnv.exe
File created	\??\c:\Program Files\tbtxc\djh.exe	czmqnv.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
4508	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	2026-09-14_783b1b0e17ac3d3a96a3e86191fcb90a_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	czmqnv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	djh.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
4508	cmd.exe
4248	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	djh.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	djh.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4248	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4084	djh.exe
4084	djh.exe
4084	djh.exe
4084	djh.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4084	djh.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
900	2026-09-14_783b1b0e17ac3d3a96a3e86191fcb90a_coinminer_elex_wannacry.exe
1260	czmqnv.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 900 wrote to memory of 4508	900	2026-09-14_783b1b0e17ac3d3a96a3e86191fcb90a_coinminer_elex_wannacry.exe	87
PID 4508 wrote to memory of 4248	4508	cmd.exe	89
PID 4508 wrote to memory of 1260	4508	cmd.exe	90
PID 1260 wrote to memory of 4084	1260	czmqnv.exe	91

C:\Users\Admin\AppData\Local\Temp\2026-09-14_783b1b0e17ac3d3a96a3e86191fcb90a_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-09-14_783b1b0e17ac3d3a96a3e86191fcb90a_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:900
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\czmqnv.exe "C:\Users\Admin\AppData\Local\Temp\2026-09-14_783b1b0e17ac3d3a96a3e86191fcb90a_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:4508
- - 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:4248
- - C:\Users\Admin\AppData\Local\Temp\czmqnv.exe
    C:\Users\Admin\AppData\Local\Temp\\czmqnv.exe "C:\Users\Admin\AppData\Local\Temp\2026-09-14_783b1b0e17ac3d3a96a3e86191fcb90a_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:1260
  - - \??\c:\Program Files\tbtxc\djh.exe
      "c:\Program Files\tbtxc\djh.exe" "c:\Program Files\tbtxc\djhwi.dll",Group C:\Users\Admin\AppData\Local\Temp\czmqnv.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:4084

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Command Shell

1

T1059.003

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

djh.exe

Path C:\Program Files\tbtxc\djh.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

czmqnv.exe

Path C:\Users\Admin\AppData\Local\Temp\czmqnv.exe
Size 290KB
SHA256 4ea85fa12d7a78664f0fa30407a2ff30f4dc833330ae45b0d4437de98bcad753
MD5 19db0dc164c08bb1fde38ae6e11e56dc
SHA1 b2b90736fb3d13b691df315e2c9dd2f8e49b638c
SHA512 f176eec07dc5ed193dd690d3a726b8c8c35d5a1e9140deb26b106791b12021abb43f655eb592792cdb1a364973b748801831bd2ad5509d03fc3e6c86fa75bfd1
SSDEEP 3072:etaoOzbY5l/Tx1DNgcbouGYefD5h1zZCBgb3EInA3rdCKA9bwpfMrgsAHuskkycX:etatPE5Txnev1zQBgexOdw6rpI9FsIL
TLSH
T1B5547C1233E44869E4EA3E72CE76A630D7FAE875AC33D67B03D4430D5A36A04CB55366
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

djhwi.dll

Path \??\c:\Program Files\tbtxc\djhwi.dll
Size 97KB
SHA256 907c108ef1741b874871d30e14767968359640231e1a747a7acf1d022645cba2
MD5 bf78d8adba87144392e340fb12aa99d4
SHA1 c63b84b990cd432c054aa7e2503f7261891d1019
SHA512 82d99cafbd0070b2c22317130d7250530e0099138fb9b6ddfc89a4af1ab1d9359aa4633fa1a108c3511d1eda502d5a2d362bd97b879c64d7e192b301a1b343a0
SSDEEP 3072:BDpG6gzgHr5tCmfk455ecDBkdq+SStvAbGq:5pG6Sg9txRk/SS6bGq
TLSH
T181A301F6290D7DD6CB354839D6628E35FA29EE348C549F887ECE6C13ACB8410E1645F1
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4084-7-0x0000000010000000-0x0000000010038000-memory.dmp

Download

memory/4084-8-0x0000000010000000-0x0000000010038000-memory.dmp

Download

memory/4084-10-0x0000000010000000-0x0000000010038000-memory.dmp

Download

memory/4084-13-0x0000000010000000-0x0000000010038000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads