farfli | a02b9905c9d275f781cedbb97a768038564bc859906b1f39377190e65042a8e8

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
07/08/2026, 09:57

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General

Target
2026-08-07_aa32485e78ef0cfdf775cbd254b17b83_coinminer_elex_wannacry.exe
Size 234KB
Sample260807-ly7fgavydy
SHA256 a02b9905c9d275f781cedbb97a768038564bc859906b1f39377190e65042a8e8
MD5 aa32485e78ef0cfdf775cbd254b17b83
SHA1 1b25d247bdd5079e8ffdedad1c597909d42f48c3
SHA512 c5fde610465bb7854f420ad5b18a9f9988856881ef98cb5abd6e2abcc86a1d28d44d13fcd35fca303a8cb3fab1d5d704ae7dd9d5d92221a7b5bbcd92008666d2
SSDEEP 6144:eMgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSoc:tgmYA/nsYf8QdsINkZ6CQetF
TLSH
T12234F18136A5CD77F0621B7E4D7B163B8536BE691B00709BD3C4AD4FB431AE46E2E209
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery execution farfli gh0strat persistence rat spyware stealer

Malware Config

Extracted

Family

gh0strat

98.126.40.18:3204
http://98.126.40.19:805/index.php
http://98.126.40.20:803/

Attributes

user_agent
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C))

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0)

Signatures

Family: Farfli
Farfli is a Windows backdoor written in C++.
backdoor farfli
Family: Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
rat gh0strat

Detects Farfli Backdoor 2 IoCs

resource	yara_rule
behavioral1/memory/3772-15-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli
behavioral1/memory/3772-18-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral1/memory/3772-15-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral1/memory/3772-18-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral1/memory/5016-0-0x0000000000400000-0x0000000000468000-memory.dmp	UPX
behavioral1/memory/5016-2-0x0000000000400000-0x0000000000468000-memory.dmp	UPX
behavioral1/files/0x0014000000023285-4.dat	UPX
behavioral1/memory/2964-11-0x0000000000400000-0x0000000000468000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
2964	ejaka.exe

Executes dropped EXE 2 IoCs

pid	Process
2964	ejaka.exe
3772	gbr.exe

Loads dropped DLL 1 IoCs

pid	Process
3772	gbr.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-1-5-21-1074038928-2032447174-945360078-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\it = "c:\\Program Files\\iomfdds\\gbr.exe \"c:\\Program Files\\iomfdds\\gbrsj.dll\",Interface"	gbr.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)	\??\k:	gbr.exe
File opened (read-only)	\??\l:	gbr.exe
File opened (read-only)	\??\n:	gbr.exe
File opened (read-only)	\??\w:	gbr.exe
File opened (read-only)	\??\y:	gbr.exe
File opened (read-only)	\??\a:	gbr.exe
File opened (read-only)	\??\h:	gbr.exe
File opened (read-only)	\??\i:	gbr.exe
File opened (read-only)	\??\p:	gbr.exe
File opened (read-only)	\??\s:	gbr.exe
File opened (read-only)	\??\v:	gbr.exe
File opened (read-only)	\??\j:	gbr.exe
File opened (read-only)	\??\r:	gbr.exe
File opened (read-only)	\??\u:	gbr.exe
File opened (read-only)	\??\z:	gbr.exe
File opened (read-only)	\??\m:	gbr.exe
File opened (read-only)	\??\o:	gbr.exe
File opened (read-only)	\??\q:	gbr.exe
File opened (read-only)	\??\t:	gbr.exe
File opened (read-only)	\??\x:	gbr.exe
File opened (read-only)	\??\b:	gbr.exe
File opened (read-only)	\??\e:	gbr.exe
File opened (read-only)	\??\g:	gbr.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	gbr.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\iomfdds	ejaka.exe
File created	\??\c:\Program Files\iomfdds\gbrsj.dll	ejaka.exe
File created	\??\c:\Program Files\iomfdds\gbr.exe	ejaka.exe
File opened for modification	\??\c:\Program Files\iomfdds\gbr.exe	ejaka.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
4708	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	2026-08-07_aa32485e78ef0cfdf775cbd254b17b83_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	ejaka.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gbr.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
4708	cmd.exe
3096	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	gbr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	gbr.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3096	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3772	gbr.exe
3772	gbr.exe
3772	gbr.exe
3772	gbr.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3772	gbr.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5016	2026-08-07_aa32485e78ef0cfdf775cbd254b17b83_coinminer_elex_wannacry.exe
2964	ejaka.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 5016 wrote to memory of 4708	5016	2026-08-07_aa32485e78ef0cfdf775cbd254b17b83_coinminer_elex_wannacry.exe	85
PID 4708 wrote to memory of 3096	4708	cmd.exe	87
PID 4708 wrote to memory of 2964	4708	cmd.exe	88
PID 2964 wrote to memory of 3772	2964	ejaka.exe	89

C:\Users\Admin\AppData\Local\Temp\2026-08-07_aa32485e78ef0cfdf775cbd254b17b83_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-07_aa32485e78ef0cfdf775cbd254b17b83_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5016
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\ejaka.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-07_aa32485e78ef0cfdf775cbd254b17b83_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:4708
- - 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:3096
- - C:\Users\Admin\AppData\Local\Temp\ejaka.exe
    C:\Users\Admin\AppData\Local\Temp\\ejaka.exe "C:\Users\Admin\AppData\Local\Temp\2026-08-07_aa32485e78ef0cfdf775cbd254b17b83_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:2964
  - - \??\c:\Program Files\iomfdds\gbr.exe
      "c:\Program Files\iomfdds\gbr.exe" "c:\Program Files\iomfdds\gbrsj.dll",Interface C:\Users\Admin\AppData\Local\Temp\ejaka.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:3772

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

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

Replay Monitor

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Downloads

gbr.exe

Path C:\Program Files\iomfdds\gbr.exe
Size 60KB
SHA256 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
MD5 889b99c52a60dd49227c5e485a016679
SHA1 8fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA512 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
SSDEEP 1536:H9ykYCTdiHQKrFXmw2RQln5IUmDjoX6+:HlMHprF2nRQln5I
TLSH
T127532AC2FA00C171D4A7563019778F1A5766AC13DB728ACB94B0B4A41EB3291AD3E5FF
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ejaka.exe

Path C:\Users\Admin\AppData\Local\Temp\ejaka.exe
Size 234KB
SHA256 88528a2688b64ceab7f01e5b4eaec1862155c094fbc03ed310da902695cb68c9
MD5 8248ae66dc5ebf4d73490254f6e3c86c
SHA1 2a33cb807c1207731afc713d7785cc3d8c8d4984
SHA512 b559d2d1fbb316953762db9ac6fde08023abc7280817fdafea6044393c06b69f23b89b5648b3b950ad06e12bd3615f1fda98fe7cacaaffc8a4f086fd6349f158
SSDEEP 6144:eMgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSoc6:tgmYA/nsYf8QdsINkZ6CQetF4
TLSH
T19134F18136A5CD77F0221B7E4D7B163B8536BE691B40709BD3C4AD4FB431AE46E2E209
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

gbrsj.dll

Path \??\c:\Program Files\iomfdds\gbrsj.dll
Size 168KB
SHA256 4bfc9f1aa3d6c3ce4efa124fa06acfba6ccd9cf60a52481964ff8577a10546e9
MD5 b5da39b3f67f749b6576336d8434cbce
SHA1 2e0873e7ca0a09abc0e76ee64834c7685799c3a8
SHA512 6fbbd4f7abe3fdde87dffc5711f1e253988f3f18826a82c7cdffb0d6c7e4cb628654dc88c1d217dfa94f1b9d811d6422470cd950e29c8d633619d902b39d0356
SSDEEP 3072:S25S8qsPfVoCxEI5GRycgzQkf2+JKC8L1MwwYsg89R5gZMI:SJ8T1xE3ocg9f2nfLnwYsxf2Zx
TLSH
T1A2F312D3EFA649E0C4361BB07C53C10FB8620C6498715B5543D9FEEA3DA668E493D3A1
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2964-11-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/3772-14-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/3772-15-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/3772-18-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/5016-0-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/5016-2-0x0000000000400000-0x0000000000468000-memory.dmp

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