661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979

General

Target

661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe
Size

224KB
MD5

3606a95783b141fad6c451f5827d9c70
SHA1

34294973aef61e096459c4d5d32b78e49598a8ed
SHA256

661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979
SHA512

09122e1602a6cdc962a787a071d2f19f34891c458778a722f9040994c9db412b6be1ba890627f82bdd00ceef19b3454179a7056a1567f9d684537464535b5ba8
SSDEEP

3072:sRJ7MzJkLNzq4ZA4j88xrqzojYvebJNCpdAI9mifH6x0cdHX4:sRIJSs4K4j88xrqzKYmXCDjfHu0F

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:

661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exezymob.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	zymob.exe

Executes dropped EXE 1 IoCs

Processes:

zymob.exe

pid process

208 zymob.exe

pid	process
208	zymob.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:

661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe

Adds Run key to start application 2 TTPs 29 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

zymob.exe661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /o"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /l"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /q"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /i"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /j"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /p"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /g"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /v"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /y"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /m"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /u"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /a"	661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /e"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /z"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /s"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /h"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /w"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /k"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /r"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /n"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /f"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /x"	zymob.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\	zymob.exe
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\	661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /b"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /c"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /t"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /a"	zymob.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\zymob = "C:\\Users\\Admin\\zymob.exe /d"	zymob.exe

Maps connected drives based on registry 3 TTPs 4 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

zymob.exe661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	zymob.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	zymob.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings	661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exezymob.exe

pid	process
4980	661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe
4980	661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe
208	zymob.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exezymob.exe

pid process

4980 661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe
208 zymob.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe

description	pid	process	target process
PID 4980 wrote to memory of 208	4980	661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe	zymob.exe
PID 4980 wrote to memory of 208	4980	661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe	zymob.exe
PID 4980 wrote to memory of 208	4980	661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe	zymob.exe

C:\Users\Admin\AppData\Local\Temp\661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe
"C:\Users\Admin\AppData\Local\Temp\661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4980

C:\Users\Admin\zymob.exe
"C:\Users\Admin\zymob.exe"
2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:208

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:4004

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

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\zymob.exe

Filesize
224KB

MD5
3606a95783b141fad6c451f5827d9c70

SHA1
34294973aef61e096459c4d5d32b78e49598a8ed

SHA256
661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979

SHA512
09122e1602a6cdc962a787a071d2f19f34891c458778a722f9040994c9db412b6be1ba890627f82bdd00ceef19b3454179a7056a1567f9d684537464535b5ba8

Download Submit
C:\Users\Admin\zymob.exe

Filesize
224KB

MD5
3606a95783b141fad6c451f5827d9c70

SHA1
34294973aef61e096459c4d5d32b78e49598a8ed

SHA256
661458c1bb2a84ca8801b426ec24f1b58fcd3591baf5a3c443046819e9724979

SHA512
09122e1602a6cdc962a787a071d2f19f34891c458778a722f9040994c9db412b6be1ba890627f82bdd00ceef19b3454179a7056a1567f9d684537464535b5ba8

Download Submit
memory/208-134-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads