39af2b03fbafe0f8bcff93aad1df96de354416ae83a21241e05ad3da4cdcd980

General

Target

39af2b03fbafe0f8bcff93aad1df96de354416ae83a21241e05ad3da4cdcd980.exe
Size

212KB
MD5

c79ab1a988c7b3677786a10fac3e2e67
SHA1

90784c2068844c09b673bbdf8072928c99791f0a
SHA256

39af2b03fbafe0f8bcff93aad1df96de354416ae83a21241e05ad3da4cdcd980
SHA512

d0c3afc10ae3aeae008e87102242a13a805d4c63cec89c17d0d9ae84d0cf7c7716846fe30f1a787a19b0252de29cbfbe08ddeac88011401d8a222bfb9aef1721
SSDEEP

3072:tDElLzU1kUKq8xeWKEkggYLtB4rxkbIOK:QLzwkUKq8sWKivExkEn

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

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	39af2b03fbafe0f8bcff93aad1df96de354416ae83a21241e05ad3da4cdcd980.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	jieeg.exe

Executes dropped EXE 1 IoCs

pid	Process
1580	jieeg.exe

Loads dropped DLL 2 IoCs

pid	Process
1416	39af2b03fbafe0f8bcff93aad1df96de354416ae83a21241e05ad3da4cdcd980.exe
1416	39af2b03fbafe0f8bcff93aad1df96de354416ae83a21241e05ad3da4cdcd980.exe

Adds Run key to start application 2 TTPs 19 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jieeg = "C:\\Users\\Admin\\jieeg.exe /y"	jieeg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jieeg = "C:\\Users\\Admin\\jieeg.exe /i"	jieeg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jieeg = "C:\\Users\\Admin\\jieeg.exe /p"	jieeg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jieeg = "C:\\Users\\Admin\\jieeg.exe /f"	jieeg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jieeg = "C:\\Users\\Admin\\jieeg.exe /u"	jieeg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jieeg = "C:\\Users\\Admin\\jieeg.exe /k"	jieeg.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\	39af2b03fbafe0f8bcff93aad1df96de354416ae83a21241e05ad3da4cdcd980.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jieeg = "C:\\Users\\Admin\\jieeg.exe /h"	39af2b03fbafe0f8bcff93aad1df96de354416ae83a21241e05ad3da4cdcd980.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\	jieeg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jieeg = "C:\\Users\\Admin\\jieeg.exe /o"	jieeg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jieeg = "C:\\Users\\Admin\\jieeg.exe /d"	jieeg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jieeg = "C:\\Users\\Admin\\jieeg.exe /j"	jieeg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jieeg = "C:\\Users\\Admin\\jieeg.exe /q"	jieeg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jieeg = "C:\\Users\\Admin\\jieeg.exe /v"	jieeg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jieeg = "C:\\Users\\Admin\\jieeg.exe /b"	jieeg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jieeg = "C:\\Users\\Admin\\jieeg.exe /l"	jieeg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jieeg = "C:\\Users\\Admin\\jieeg.exe /h"	jieeg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jieeg = "C:\\Users\\Admin\\jieeg.exe /s"	jieeg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\jieeg = "C:\\Users\\Admin\\jieeg.exe /w"	jieeg.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 31 IoCs

pid	Process
1416	39af2b03fbafe0f8bcff93aad1df96de354416ae83a21241e05ad3da4cdcd980.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe
1580	jieeg.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1416	39af2b03fbafe0f8bcff93aad1df96de354416ae83a21241e05ad3da4cdcd980.exe
1580	jieeg.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1416 wrote to memory of 1580	1416	39af2b03fbafe0f8bcff93aad1df96de354416ae83a21241e05ad3da4cdcd980.exe	26
PID 1416 wrote to memory of 1580	1416	39af2b03fbafe0f8bcff93aad1df96de354416ae83a21241e05ad3da4cdcd980.exe	26
PID 1416 wrote to memory of 1580	1416	39af2b03fbafe0f8bcff93aad1df96de354416ae83a21241e05ad3da4cdcd980.exe	26
PID 1416 wrote to memory of 1580	1416	39af2b03fbafe0f8bcff93aad1df96de354416ae83a21241e05ad3da4cdcd980.exe	26

C:\Users\Admin\AppData\Local\Temp\39af2b03fbafe0f8bcff93aad1df96de354416ae83a21241e05ad3da4cdcd980.exe
"C:\Users\Admin\AppData\Local\Temp\39af2b03fbafe0f8bcff93aad1df96de354416ae83a21241e05ad3da4cdcd980.exe"
1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1416
- C:\Users\Admin\jieeg.exe
  "C:\Users\Admin\jieeg.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:1580

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\jieeg.exe

Filesize
212KB

MD5
761bc257983454bc3da3fca4b2e5065c

SHA1
572a5f02760e117074c182c22a67fe5d4d6d404a

SHA256
b17f683dac7061ffbd49a88d10ab048582967a07c5b47a9b3edd6401d57ad43a

SHA512
3a45458bf3d7d452bd71c8fc1f1b454f28b2217c7035941aab2085747ad83b9a258fe864e22f739f772e18674ca6faf76902108893b86d41276859d99270bcb2

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

Filesize
212KB

MD5
761bc257983454bc3da3fca4b2e5065c

SHA1
572a5f02760e117074c182c22a67fe5d4d6d404a

SHA256
b17f683dac7061ffbd49a88d10ab048582967a07c5b47a9b3edd6401d57ad43a

SHA512
3a45458bf3d7d452bd71c8fc1f1b454f28b2217c7035941aab2085747ad83b9a258fe864e22f739f772e18674ca6faf76902108893b86d41276859d99270bcb2

Download Submit
\Users\Admin\jieeg.exe

Filesize
212KB

MD5
761bc257983454bc3da3fca4b2e5065c

SHA1
572a5f02760e117074c182c22a67fe5d4d6d404a

SHA256
b17f683dac7061ffbd49a88d10ab048582967a07c5b47a9b3edd6401d57ad43a

SHA512
3a45458bf3d7d452bd71c8fc1f1b454f28b2217c7035941aab2085747ad83b9a258fe864e22f739f772e18674ca6faf76902108893b86d41276859d99270bcb2

Download Submit
\Users\Admin\jieeg.exe

Filesize
212KB

MD5
761bc257983454bc3da3fca4b2e5065c

SHA1
572a5f02760e117074c182c22a67fe5d4d6d404a

SHA256
b17f683dac7061ffbd49a88d10ab048582967a07c5b47a9b3edd6401d57ad43a

SHA512
3a45458bf3d7d452bd71c8fc1f1b454f28b2217c7035941aab2085747ad83b9a258fe864e22f739f772e18674ca6faf76902108893b86d41276859d99270bcb2

Download Submit
memory/1416-56-0x0000000075E81000-0x0000000075E83000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads