a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b

General

Target

a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe
Size

288KB
MD5

43848de123fc679e24f9b72564dec04c
SHA1

9536b49224461b68068c74ce33646300e0574beb
SHA256

a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b
SHA512

df0cbe2143642d48f811f81a8c1d3030c069733801d2aec550656aacc4c9e5de51f0e5978a6f5a78192af5e4bd9743994a2b1e8b1f7fa6995127bf9c842febb6
SSDEEP

6144:oIsiuvbGuOdn9Z/QmO6Ckobf3fGCmahGIUutj:duvbGuYnXQmO6Ckobf3fGCmahTUs

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

zlnen.exea994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	zlnen.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe

Executes dropped EXE 1 IoCs

Processes:

zlnen.exe

pid process

1096 zlnen.exe

pid	process
1096	zlnen.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe

Adds Run key to start application 2 TTPs 52 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

zlnen.exea994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /S"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /G"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /e"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /a"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /p"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /Q"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /J"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /D"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /o"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /E"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /x"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /c"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /u"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /n"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /i"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /H"	zlnen.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\	a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /s"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /f"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /t"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /A"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /y"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /N"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /d"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /r"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /T"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /v"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /I"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /m"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /F"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /Z"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /W"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /O"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /Y"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /g"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /M"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /z"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /P"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /K"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /k"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /X"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /L"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /w"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /q"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /j"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /P"	a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /B"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /C"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /V"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /U"	zlnen.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zlnen = "C:\\Users\\Admin\\zlnen.exe /h"	zlnen.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exezlnen.exe

pid	process
4536	a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe
4536	a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe
1096	zlnen.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exezlnen.exe

pid process

4536 a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe
1096 zlnen.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe

description	pid	process	target process
PID 4536 wrote to memory of 1096	4536	a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe	zlnen.exe
PID 4536 wrote to memory of 1096	4536	a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe	zlnen.exe
PID 4536 wrote to memory of 1096	4536	a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe	zlnen.exe
PID 4536 wrote to memory of 1096	4536	a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe	zlnen.exe
PID 4536 wrote to memory of 1096	4536	a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe	zlnen.exe

C:\Users\Admin\AppData\Local\Temp\a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe
"C:\Users\Admin\AppData\Local\Temp\a994e4b9dd4a61a4a387b2a04ed299a7842a57d674d3e05002934ad29867570b.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4536

C:\Users\Admin\zlnen.exe
"C:\Users\Admin\zlnen.exe"
2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1096

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\zlnen.exe
Filesize
288KB

MD5
4f7ffd1cb967b34bcbf1a8d39210840a

SHA1
bbce28d905c0367a1a9fc4c4ace866c910a6d4a5

SHA256
bc7b9c99a7083556003f976b311850c0f89f395df588a7196624f04280496173

SHA512
663d73e93c34805e8130acd43deb8a8273dce79842b8b45119ad96785f3fe6a2c3dbbb69e610c5ffb34bda239bf637c862ed2083e496d094266770412fcd206c

Download Submit
C:\Users\Admin\zlnen.exe
Filesize
288KB

MD5
4f7ffd1cb967b34bcbf1a8d39210840a

SHA1
bbce28d905c0367a1a9fc4c4ace866c910a6d4a5

SHA256
bc7b9c99a7083556003f976b311850c0f89f395df588a7196624f04280496173

SHA512
663d73e93c34805e8130acd43deb8a8273dce79842b8b45119ad96785f3fe6a2c3dbbb69e610c5ffb34bda239bf637c862ed2083e496d094266770412fcd206c

Download Submit
memory/1096-135-0x0000000000000000-mapping.dmp

Download
memory/1096-140-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/1096-141-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/4536-134-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads