d418ca84ca4bb7db72d2b00f8d6225a57909e02f712c7b0e2d9cefb2e18d0737

Resubmissions

13-07-2024 09:54

240713-lxbx6swdmm 10

13-07-2024 09:50

240713-lvbvdsyapd 10

13-07-2024 09:46

240713-lr1dksyajd 10

Analysis

max time kernel
1197s
max time network
844s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
13-07-2024 09:50

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
Size

2.4MB
MD5

42935359d9ae5ab7507f082c117c0027
SHA1

05dd7616805833497c0ec1826ffc53b7673d8191
SHA256

2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421
SHA512

f7fb318258fd7faaed95facea3b8c1ee2c11c13cb5ea239773b22ae5e270cef94a1892dfd2f60df15cf79f9f4935e4145bf5127734ff8893c3020c245d18189a
SSDEEP

12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCH:eEtl9mRda12sX7hKB8NIyXbacAfk

Score

10^/10

persistence ransomware

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe HelpMe.exe"	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe HelpMe.exe"	HelpMe.exe

Renames multiple (91) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
ransomware

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	HelpMe.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe

Executes dropped EXE 1 IoCs

pid	Process
2928	HelpMe.exe

Loads dropped DLL 2 IoCs

pid	Process
2780	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
2780	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe

Enumerates connected drives 3 TTPs 46 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)	\??\L:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\N:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\Z:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\G:	HelpMe.exe
File opened (read-only)	\??\A:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\R:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\T:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\X:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\E:	HelpMe.exe
File opened (read-only)	\??\W:	HelpMe.exe
File opened (read-only)	\??\Y:	HelpMe.exe
File opened (read-only)	\??\P:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\K:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\P:	HelpMe.exe
File opened (read-only)	\??\R:	HelpMe.exe
File opened (read-only)	\??\U:	HelpMe.exe
File opened (read-only)	\??\B:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\G:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\I:	HelpMe.exe
File opened (read-only)	\??\K:	HelpMe.exe
File opened (read-only)	\??\E:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\X:	HelpMe.exe
File opened (read-only)	\??\W:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\I:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\Q:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\S:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\Y:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\B:	HelpMe.exe
File opened (read-only)	\??\H:	HelpMe.exe
File opened (read-only)	\??\V:	HelpMe.exe
File opened (read-only)	\??\H:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\M:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\O:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\A:	HelpMe.exe
File opened (read-only)	\??\L:	HelpMe.exe
File opened (read-only)	\??\M:	HelpMe.exe
File opened (read-only)	\??\N:	HelpMe.exe
File opened (read-only)	\??\S:	HelpMe.exe
File opened (read-only)	\??\J:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\Z:	HelpMe.exe
File opened (read-only)	\??\T:	HelpMe.exe
File opened (read-only)	\??\V:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened (read-only)	\??\J:	HelpMe.exe
File opened (read-only)	\??\O:	HelpMe.exe
File opened (read-only)	\??\Q:	HelpMe.exe
File opened (read-only)	\??\U:	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe

Drops autorun.inf file 1 TTPs 3 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File opened for modification	F:\AUTORUN.INF	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened for modification	C:\AUTORUN.INF	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File opened for modification	F:\AUTORUN.INF	HelpMe.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\HelpMe.exe	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
File created	C:\Windows\SysWOW64\HelpMe.exe	HelpMe.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2780 wrote to memory of 2928	2780	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe	30
PID 2780 wrote to memory of 2928	2780	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe	30
PID 2780 wrote to memory of 2928	2780	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe	30
PID 2780 wrote to memory of 2928	2780	2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe	30

C:\Users\Admin\AppData\Local\Temp\2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe
"C:\Users\Admin\AppData\Local\Temp\2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421.exe"
1⤵
- Modifies WinLogon for persistence
- Drops startup file
- Loads dropped DLL
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2780
- C:\Windows\SysWOW64\HelpMe.exe
  C:\Windows\system32\HelpMe.exe
  2⤵
  - Modifies WinLogon for persistence
  - Drops startup file
  - Executes dropped EXE
  - Enumerates connected drives
  - Drops autorun.inf file
  - Drops file in System32 directory
  PID:2928

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\$Recycle.Bin\S-1-5-21-1385883288-3042840365-2734249351-1000\desktop.ini.exe

Filesize
2.4MB

MD5
89b8074777160ea91213ea3d12c375e8

SHA1
fc3630bccdc29bdc6cb5595039d96f29ca26aea8

SHA256
75f76dd4a91092d02eeae32f4e99179a49c9208e32a9b824e7e718abbf91d82b

SHA512
1bfb96a8b3b3893614e8667ee836732a75a20b78daef73acac4f0d857f28510d1cb5cfcb4d5329ee3fd72994b02cdbc59d2fb8c58fc39e96436618c8a1aea6f9

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

Filesize
1KB

MD5
33684791a5b75e2bf5f9d1e31e6c8176

SHA1
a414ac55e79186ad2ab271c3c39aee042f1629ad

SHA256
116d6d1697c65cd0a82b764212aca26ff83a373e6f77e2d934efed068479ebcf

SHA512
813944f097b042e749b0181ab6bd49b380ca50318995fb9c59af7c1090df0635a1a8d2bbef76a0db7b3c58b8615908f1bfbc164f3fd003f8748b56b45689d003

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk

Filesize
954B

MD5
14776a28bb14e7a8a7c07b9dfb0f12c8

SHA1
b95f348e1ec374f7be0cd5977d834b102ea4b446

SHA256
0d246c829aed7b0d2edfbcee2e414e6710c0be5206087f69a31e495244986784

SHA512
ee16056b02547b22ff63cb868790053f27279615e311423c8be537abef83fb098e457aa7d8677a77dd90d05e4e16aca5008f4465816ef531dc3ccca95fe78aa8

Download Submit
F:\AUTORUN.INF

Filesize
145B

MD5
ca13857b2fd3895a39f09d9dde3cca97

SHA1
8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

SHA256
cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

SHA512
55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

Download Submit
F:\AutoRun.exe

Filesize
2.4MB

MD5
42935359d9ae5ab7507f082c117c0027

SHA1
05dd7616805833497c0ec1826ffc53b7673d8191

SHA256
2fff52aa0c2fac4e53008cdf0bbea4ade2243bf42418330a03d5ce6f0d598421

SHA512
f7fb318258fd7faaed95facea3b8c1ee2c11c13cb5ea239773b22ae5e270cef94a1892dfd2f60df15cf79f9f4935e4145bf5127734ff8893c3020c245d18189a

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
2.4MB

MD5
4deb32e0d99e70030e0a145ba27c9bc1

SHA1
02864cb437c185685f7987400bb15ded169f494f

SHA256
139d861057f6be9f004db60345166fc74cf19db6e46e967a4ee2d04836467d8d

SHA512
42e2dcbfe8f51a603e8f5b2ac94bbb817f273741451105aadad68540453d55e3fd76a06ddd806c9bf04030567a3dc7286259b747da52f77a36687c7169e40fe8

Download Submit
memory/2780-236-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2780-11-0x0000000000480000-0x00000000004FB000-memory.dmp

Filesize
492KB

Download
memory/2780-10-0x0000000000480000-0x00000000004FB000-memory.dmp

Filesize
492KB

Download
memory/2780-0-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2780-237-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2780-1-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2780-243-0x0000000000480000-0x00000000004FB000-memory.dmp

Filesize
492KB

Download
memory/2928-12-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download
memory/2928-14-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2928-238-0x0000000000400000-0x000000000047B000-memory.dmp

Filesize
492KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads