farfli | 7d37f5481a2260f7f6551599dc4764c95457ba6e7e73b764903740fad46469ee

General

Target
2026-10-26_eece4e774efbb5e98ad1f0166bf140b8_coinminer_elex_wannacry.exe
Size 247KB
Sample261027-dff7kaaz8k
SHA256 7d37f5481a2260f7f6551599dc4764c95457ba6e7e73b764903740fad46469ee
MD5 eece4e774efbb5e98ad1f0166bf140b8
SHA1 4b7389845ae4702c515ee899aececa21cd1a6781
SHA512 9c551fbbeeaa75a793c47d651c7e10c2d9702883ff2a689233d4805ba22134c2cd3c26c7ab3aa676dcab3bba2119cf151d0adc229ce0478681151176c04e24ed
SSDEEP 3072:etaoOzbY5l/Tx1DNgcbouGYefD5h1zZCBgb3EInA3rdCKA9bwpfMrgsAHuskkyc0:etatPE5Txnev1zQBgexOdw6rpI9FsbL
TLSH
T190347C1233E80869E5EA7E33CEB6A630D7FAE9759C33D66F1394420D4E36904CB15366
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor bootkit defense_evasion 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/3328-8-0x0000000010000000-0x0000000010038000-memory.dmp	family_farfli
behavioral2/memory/3328-10-0x0000000010000000-0x0000000010038000-memory.dmp	family_farfli
behavioral2/memory/3328-12-0x0000000010000000-0x0000000010038000-memory.dmp	family_farfli

Detects executables containing base64 encoded User Agent 3 IoCs

resource	yara_rule
behavioral2/memory/3328-8-0x0000000010000000-0x0000000010038000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3328-10-0x0000000010000000-0x0000000010038000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent
behavioral2/memory/3328-12-0x0000000010000000-0x0000000010038000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_B64_Encoded_UserAgent

UPX dump on OEP (original entry point) 6 IoCs

resource	yara_rule
behavioral2/files/0x000c000000016d03-1.dat	UPX
behavioral2/files/0x000d00000001c560-5.dat	UPX
behavioral2/memory/3328-7-0x0000000010000000-0x0000000010038000-memory.dmp	UPX
behavioral2/memory/3328-8-0x0000000010000000-0x0000000010038000-memory.dmp	UPX
behavioral2/memory/3328-10-0x0000000010000000-0x0000000010038000-memory.dmp	UPX
behavioral2/memory/3328-12-0x0000000010000000-0x0000000010038000-memory.dmp	UPX

Deletes itself 1 TTPs 1 IoCs

defense_evasion

File Deletion

T1070.004

pid	Process
2240	pdrns.exe

Executes dropped EXE 2 IoCs

pid	Process
2240	pdrns.exe
3328	mdp.exe

Loads dropped DLL 1 IoCs

pid	Process
3328	mdp.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-1-5-21-2304238888-3968896904-642854331-1000\Software\Microsoft\Windows\CurrentVersion\Run\Vicity = "c:\\Program Files\\jmhan\\mdp.exe \"c:\\Program Files\\jmhan\\mdpjr.dll\",Group"	mdp.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)	\??\v:	mdp.exe
File opened (read-only)	\??\b:	mdp.exe
File opened (read-only)	\??\l:	mdp.exe
File opened (read-only)	\??\w:	mdp.exe
File opened (read-only)	\??\y:	mdp.exe
File opened (read-only)	\??\z:	mdp.exe
File opened (read-only)	\??\g:	mdp.exe
File opened (read-only)	\??\i:	mdp.exe
File opened (read-only)	\??\m:	mdp.exe
File opened (read-only)	\??\o:	mdp.exe
File opened (read-only)	\??\k:	mdp.exe
File opened (read-only)	\??\n:	mdp.exe
File opened (read-only)	\??\q:	mdp.exe
File opened (read-only)	\??\t:	mdp.exe
File opened (read-only)	\??\u:	mdp.exe
File opened (read-only)	\??\x:	mdp.exe
File opened (read-only)	\??\a:	mdp.exe
File opened (read-only)	\??\d:	mdp.exe
File opened (read-only)	\??\h:	mdp.exe
File opened (read-only)	\??\j:	mdp.exe
File opened (read-only)	\??\p:	mdp.exe
File opened (read-only)	\??\r:	mdp.exe
File opened (read-only)	\??\s:	mdp.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	mdp.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000d00000001c560-5.dat	upx
behavioral2/memory/3328-7-0x0000000010000000-0x0000000010038000-memory.dmp	upx
behavioral2/memory/3328-8-0x0000000010000000-0x0000000010038000-memory.dmp	upx
behavioral2/memory/3328-10-0x0000000010000000-0x0000000010038000-memory.dmp	upx
behavioral2/memory/3328-12-0x0000000010000000-0x0000000010038000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	\??\c:\Program Files\jmhan	pdrns.exe
File created	\??\c:\Program Files\jmhan\mdpjr.dll	pdrns.exe
File created	\??\c:\Program Files\jmhan\mdp.exe	pdrns.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
4112	cmd.exe

Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

discovery

System Network Configuration Discovery

T1016

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname	mdp.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain	mdp.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	2026-10-26_eece4e774efbb5e98ad1f0166bf140b8_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	pdrns.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mdp.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
4112	cmd.exe
2492	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	mdp.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	mdp.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2492	PING.EXE

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3328	mdp.exe
3328	mdp.exe
3328	mdp.exe
3328	mdp.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3328	mdp.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
688	2026-10-26_eece4e774efbb5e98ad1f0166bf140b8_coinminer_elex_wannacry.exe
2240	pdrns.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 688 wrote to memory of 4112	688	2026-10-26_eece4e774efbb5e98ad1f0166bf140b8_coinminer_elex_wannacry.exe	89
PID 4112 wrote to memory of 2492	4112	cmd.exe	91
PID 4112 wrote to memory of 2240	4112	cmd.exe	92
PID 2240 wrote to memory of 3328	2240	pdrns.exe	93

C:\Users\Admin\AppData\Local\Temp\2026-10-26_eece4e774efbb5e98ad1f0166bf140b8_coinminer_elex_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2026-10-26_eece4e774efbb5e98ad1f0166bf140b8_coinminer_elex_wannacry.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:688
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\pdrns.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-26_eece4e774efbb5e98ad1f0166bf140b8_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:4112
- - 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:2492
- - C:\Users\Admin\AppData\Local\Temp\pdrns.exe
    C:\Users\Admin\AppData\Local\Temp\\pdrns.exe "C:\Users\Admin\AppData\Local\Temp\2026-10-26_eece4e774efbb5e98ad1f0166bf140b8_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:2240
  - - \??\c:\Program Files\jmhan\mdp.exe
      "c:\Program Files\jmhan\mdp.exe" "c:\Program Files\jmhan\mdpjr.dll",Group C:\Users\Admin\AppData\Local\Temp\pdrns.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      Enumerates connected drives
      Writes to the Master Boot Record (MBR)
      Reads the TCP/IP host and domain name from the registry
      System Location Discovery: System Language Discovery
      Checks processor information in registry
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:3328

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

Indicator Removal

1

T1070

File Deletion

Modify Registry

Pre-OS Boot

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

2

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

mdp.exe

Path C:\Program Files\jmhan\mdp.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

pdrns.exe

Path C:\Users\Admin\AppData\Local\Temp\pdrns.exe
Size 247KB
SHA256 575fb491b12605ebae9375f1cf66e1f8b67def9d4d132c53395f1cba6ed09d1a
MD5 6a66b189e54df080384e96d655d8316b
SHA1 e4af105c871831c2ea7fa1ac9583dd57b8a67b06
SHA512 386380405ea1905efcb24c9766a46d1caf7b248515f7a5265c3f4a5d897093714d3a4387781bfb7d0279141274aaa5a279a71f9267a4a651f499fa1738e7bd90
SSDEEP 3072:etaoOzbY5l/Tx1DNgcbouGYefD5h1zZCBgb3EInA3rdCKA9bwpfMrgsAHuskkyc0:etatPE5Txnev1zQBgexOdw6rpI9FsbL
TLSH
T1CA447C1233E80869E5EA7E33CEB6A630D7FAE9759C33D66F1394420D4E36904CB15366
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

mdpjr.dll

Path \??\c:\Program Files\jmhan\mdpjr.dll
Size 97KB
SHA256 db686ec84d3d22e7c73f9e5165d51d491218be98816c93421bcf90c232f9f3f9
MD5 96cac39e7362cb33ba207c1245ac7f7d
SHA1 d2183a299e2501aab912becf847bd0053b02f923
SHA512 862fdd92d959fd247ddd58b7c2acde5779a17331c2f40161e9e655c554cad5c2b45e64fd6832bc3ab96d4eadeb81bc8694c09c8886174fbe3b198cafd7ae592c
SSDEEP 3072:BDpG6gzgHr5tCmfk455ecDBkdq+SStvAbGI:5pG6Sg9txRk/SS6bGI
TLSH
T19DA301FA290D7DD6CB354839D6528E35FA29EE348C589F887ECE6C13ACB8510E1641F1
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3328-7-0x0000000010000000-0x0000000010038000-memory.dmp

Download

memory/3328-8-0x0000000010000000-0x0000000010038000-memory.dmp

Download

memory/3328-10-0x0000000010000000-0x0000000010038000-memory.dmp

Download

memory/3328-12-0x0000000010000000-0x0000000010038000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads