farfli | 934f16cafef4dd42700904fb1f2c162eb72a7fe10bfc7e2f3a110bb98dc9b4c0

Analysis

max time kernel
148s
max time network
137s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260629-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
05/07/2026, 04:48

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General

Target
2026-07-05_c7dd5c515174bc23d7d1f406208d1a25_coinminer_elex_wannacry.exe
Size 234KB
Sample260705-fe8ljads6k
SHA256 934f16cafef4dd42700904fb1f2c162eb72a7fe10bfc7e2f3a110bb98dc9b4c0
MD5 c7dd5c515174bc23d7d1f406208d1a25
SHA1 51d8da937c3c149923357562675bfe7a435213d5
SHA512 042240289a1ac575392edc1a3415b939e42f8ae335a1bc48350c84080ec6091e9f2a15f49b15da205f4b361521e270b54389f0ef2984e3a95032b6fc2c0d57b4
SSDEEP 6144:eMgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSoc:tgmYA/nsYf8QdsINkZ6CQetF
TLSH
T18B34F18136A5CD77F0621B7E4D7B163A8537BE690B00B48BD3C4AD5FB4319E46E2E209
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit discovery 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
behavioral2/memory/5508-12-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli
behavioral2/memory/5508-14-0x0000000010000000-0x000000001006D000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 2 IoCs

resource	yara_rule
behavioral2/memory/5508-12-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/5508-14-0x0000000010000000-0x000000001006D000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 4 IoCs

resource	yara_rule
behavioral2/memory/4708-0-0x0000000000400000-0x0000000000468000-memory.dmp	UPX
behavioral2/memory/4708-2-0x0000000000400000-0x0000000000468000-memory.dmp	UPX
behavioral2/files/0x00160000000115aa-3.dat	UPX
behavioral2/memory/2084-7-0x0000000000400000-0x0000000000468000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
2084	nazmy.exe

Executes dropped EXE 2 IoCs

pid	Process
2084	nazmy.exe
5508	ajr.exe

Loads dropped DLL 1 IoCs

pid	Process
5508	ajr.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-1-5-21-3047816590-610495838-277027736-1000\Software\Microsoft\Windows\CurrentVersion\Run\it = "c:\\Program Files\\nbzhv\\ajr.exe \"c:\\Program Files\\nbzhv\\ajrrd.dll\",Interface"	ajr.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:	ajr.exe
File opened (read-only)	\??\l:	ajr.exe
File opened (read-only)	\??\r:	ajr.exe
File opened (read-only)	\??\a:	ajr.exe
File opened (read-only)	\??\s:	ajr.exe
File opened (read-only)	\??\w:	ajr.exe
File opened (read-only)	\??\z:	ajr.exe
File opened (read-only)	\??\h:	ajr.exe
File opened (read-only)	\??\m:	ajr.exe
File opened (read-only)	\??\n:	ajr.exe
File opened (read-only)	\??\q:	ajr.exe
File opened (read-only)	\??\t:	ajr.exe
File opened (read-only)	\??\x:	ajr.exe
File opened (read-only)	\??\y:	ajr.exe
File opened (read-only)	\??\b:	ajr.exe
File opened (read-only)	\??\i:	ajr.exe
File opened (read-only)	\??\j:	ajr.exe
File opened (read-only)	\??\o:	ajr.exe
File opened (read-only)	\??\p:	ajr.exe
File opened (read-only)	\??\u:	ajr.exe
File opened (read-only)	\??\v:	ajr.exe
File opened (read-only)	\??\d:	ajr.exe
File opened (read-only)	\??\g:	ajr.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	ajr.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File created	\??\c:\Program Files\nbzhv\ajrrd.dll	nazmy.exe
File created	\??\c:\Program Files\nbzhv\ajr.exe	nazmy.exe
File opened for modification	\??\c:\Program Files\nbzhv	nazmy.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	ajr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-07-05_c7dd5c515174bc23d7d1f406208d1a25_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	nazmy.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
6128	cmd.exe
5972	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	ajr.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ajr.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
5972	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5508	ajr.exe
5508	ajr.exe
5508	ajr.exe
5508	ajr.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5508	ajr.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4708	2026-07-05_c7dd5c515174bc23d7d1f406208d1a25_coinminer_elex_wannacry.exe
2084	nazmy.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4708 wrote to memory of 6128	4708	2026-07-05_c7dd5c515174bc23d7d1f406208d1a25_coinminer_elex_wannacry.exe	88
PID 6128 wrote to memory of 5972	6128	cmd.exe	90
PID 6128 wrote to memory of 2084	6128	cmd.exe	91
PID 2084 wrote to memory of 5508	2084	nazmy.exe	92

C:\Users\Admin\AppData\Local\Temp\2026-07-05_c7dd5c515174bc23d7d1f406208d1a25_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-05_c7dd5c515174bc23d7d1f406208d1a25_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4708
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\nazmy.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-05_c7dd5c515174bc23d7d1f406208d1a25_coinminer_elex_wannacry.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:6128
- - 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:5972
- - C:\Users\Admin\AppData\Local\Temp\nazmy.exe
    C:\Users\Admin\AppData\Local\Temp\\nazmy.exe "C:\Users\Admin\AppData\Local\Temp\2026-07-05_c7dd5c515174bc23d7d1f406208d1a25_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:2084
  - - \??\c:\Program Files\nbzhv\ajr.exe
      "c:\Program Files\nbzhv\ajr.exe" "c:\Program Files\nbzhv\ajrrd.dll",Interface C:\Users\Admin\AppData\Local\Temp\nazmy.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:5508

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

ajr.exe

Path C:\Program Files\nbzhv\ajr.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

nazmy.exe

Path C:\Users\Admin\AppData\Local\Temp\nazmy.exe
Size 235KB
SHA256 368ee2cc5dc231c31fce6b0a79f9efa614e92517b1f1671e4314e48a108a85eb
MD5 9329b52059ceb8cea78de1e2525cd166
SHA1 e3615b6cb8c28b6445c8839cedd5be0cd858e860
SHA512 1b9aa1e1c76d7932e014fd4e6ea2dabb2f93572a2c54c6d81ab058dcc195355aa286d491a2336b129b45e0fd22600837cdbe57ed07a34cabb2e19751e850585b
SSDEEP 6144:eMgmYA/npA6SUqfjKfr4QdsICWkZ3h1SLCDFqnetKSoc8:tgmYA/nsYf8QdsINkZ6CQetF+
TLSH
T17334F18136A5CD77F0621B7E4D7B163B8536BE691B00748BD3C4AD4FB4319E46E2E209
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

ajrrd.dll

Path \??\c:\Program Files\nbzhv\ajrrd.dll
Size 168KB
SHA256 981b87ced790c43bd2178d61ab01d53aa957ecdf186acfa1854fcadc85c75d9d
MD5 2c82ab35e0997411ee2328cad23e9d4c
SHA1 de97cda83856e6780ab93b1d3ecbf37c813223a5
SHA512 db4d1e265a6765671be551efd62231343b54ee103ef781f621d965c08d6e49ca72e6dcbed6bd8dc70c5762dc741b4af1001c3f03a97d2e7fd850071052c284d4
SSDEEP 3072:S25S8qsPfVoCxEI5GRycgzQkf2+JKC8L1MwwYsg89R5gZMC:SJ8T1xE3ocg9f2nfLnwYsxf2Z7
TLSH
T171F312D3EFA649E0C0361BB07C53C10FB8620C6498715B5653D9FEEA3DA668E493D3A1
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2084-7-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/4708-0-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/4708-2-0x0000000000400000-0x0000000000468000-memory.dmp

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memory/5508-10-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/5508-12-0x0000000010000000-0x000000001006D000-memory.dmp

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memory/5508-14-0x0000000010000000-0x000000001006D000-memory.dmp

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