d3b67deaa4094313d1ab97d5b28c1da8777825d4a11f579e9cd584e78f4bef5c

Analysis

max time kernel
145s
max time network
122s
platform
windows7_x64
resource
win7-20240215-en
resource tags

arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
submitted
11/03/2024, 18:19

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General

Target

c147a525419628354e2cf5f2fbac1861.exe
Size

261KB
MD5

c147a525419628354e2cf5f2fbac1861
SHA1

f2c12841ed7f80e84a6f5f142bed277aace4509c
SHA256

d3b67deaa4094313d1ab97d5b28c1da8777825d4a11f579e9cd584e78f4bef5c
SHA512

459087ce684e8db27cc187a44de70884159de52ce3f84d27cbbd0115eafc9592f55a33fde627cf0ec281aefe37754a380f15d96b38fb604b83c4498f28966205
SSDEEP

6144:riMmXRH6pXfSb0ceR/VFAHh1kgcs0HW1kyAp0mgl88:ZMMpXKb0hNGh1kG0HWnAlU88

Score

10^/10

aspackv2 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"	c147a525419628354e2cf5f2fbac1861.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

ASPack v2.12-2.42 3 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x000a000000012252-2.dat	aspack_v212_v242
behavioral1/files/0x00070000000153d9-42.dat	aspack_v212_v242
behavioral1/files/0x0001000000000026-59.dat	aspack_v212_v242

Drops startup file 3 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	c147a525419628354e2cf5f2fbac1861.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	c147a525419628354e2cf5f2fbac1861.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	HelpMe.exe

Executes dropped EXE 1 IoCs

pid	Process
2192	HelpMe.exe

Loads dropped DLL 31 IoCs

pid	Process
1888	c147a525419628354e2cf5f2fbac1861.exe
1888	c147a525419628354e2cf5f2fbac1861.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.exe
2192	HelpMe.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)	\??\H:	HelpMe.exe
File opened (read-only)	\??\M:	HelpMe.exe
File opened (read-only)	\??\U:	HelpMe.exe
File opened (read-only)	\??\W:	HelpMe.exe
File opened (read-only)	\??\Z:	HelpMe.exe
File opened (read-only)	\??\J:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\G:	HelpMe.exe
File opened (read-only)	\??\K:	HelpMe.exe
File opened (read-only)	\??\N:	HelpMe.exe
File opened (read-only)	\??\O:	HelpMe.exe
File opened (read-only)	\??\X:	HelpMe.exe
File opened (read-only)	\??\T:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\I:	HelpMe.exe
File opened (read-only)	\??\Q:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\R:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\Y:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\A:	HelpMe.exe
File opened (read-only)	\??\V:	HelpMe.exe
File opened (read-only)	\??\G:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\K:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\Z:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\T:	HelpMe.exe
File opened (read-only)	\??\Y:	HelpMe.exe
File opened (read-only)	\??\E:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\W:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\L:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\N:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\O:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\S:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\U:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\X:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\A:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\I:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\R:	HelpMe.exe
File opened (read-only)	\??\M:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\B:	HelpMe.exe
File opened (read-only)	\??\E:	HelpMe.exe
File opened (read-only)	\??\B:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\H:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\V:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\Q:	HelpMe.exe
File opened (read-only)	\??\L:	HelpMe.exe
File opened (read-only)	\??\P:	HelpMe.exe
File opened (read-only)	\??\S:	HelpMe.exe
File opened (read-only)	\??\P:	c147a525419628354e2cf5f2fbac1861.exe
File opened (read-only)	\??\J:	HelpMe.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	c147a525419628354e2cf5f2fbac1861.exe
File opened for modification	C:\AUTORUN.INF	c147a525419628354e2cf5f2fbac1861.exe
File opened for modification	F:\AUTORUN.INF	HelpMe.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\HelpMe.exe	c147a525419628354e2cf5f2fbac1861.exe
File created	C:\Windows\SysWOW64\HelpMe.exe	HelpMe.exe
File opened for modification	C:\Windows\SysWOW64\HelpMe.exe	HelpMe.exe
File created	C:\Windows\SysWOW64\notepad.exe.exe	HelpMe.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Internet Explorer\iexplore.exe.exe	HelpMe.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2192	HelpMe.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1888 wrote to memory of 2192	1888	c147a525419628354e2cf5f2fbac1861.exe	28
PID 1888 wrote to memory of 2192	1888	c147a525419628354e2cf5f2fbac1861.exe	28
PID 1888 wrote to memory of 2192	1888	c147a525419628354e2cf5f2fbac1861.exe	28
PID 1888 wrote to memory of 2192	1888	c147a525419628354e2cf5f2fbac1861.exe	28

C:\Users\Admin\AppData\Local\Temp\c147a525419628354e2cf5f2fbac1861.exe
"C:\Users\Admin\AppData\Local\Temp\c147a525419628354e2cf5f2fbac1861.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:1888
- C:\Windows\SysWOW64\HelpMe.exe
  C:\Windows\system32\HelpMe.exe
  2⤵
  - Modifies WinLogon for persistence
  - Drops startup file
  - Executes dropped EXE
  - Loads dropped DLL
  - Enumerates connected drives
  - Drops autorun.inf file
  - Drops file in System32 directory
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  PID:2192

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

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Downloads

C:\$Recycle.Bin\S-1-5-21-2248906074-2862704502-246302768-1000\desktop.ini.exe

Filesize
262KB

MD5
fe0b94e5066c57aea803df0bf8f3adbd

SHA1
fa74f980cd7f4b69c74b88df2b08f920223d8d7f

SHA256
b8311f394ab4d29be5fd05bf972b830c8f779c75ae7372646b2db96a48dd6bf4

SHA512
eb837a48a9042eb3f5b4e28bc93bf1cc2de1aad70e4d8ed112fb7fc449946fa8575dcb2701c9758e78a60b3f73ff0a53bded53dabd1f89c054f81338c2966556

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

Filesize
1KB

MD5
e5969a907e1eb5b535ffabba8bfcc77d

SHA1
23ba4289c58e4936d1e0f0afcf1d1df735547659

SHA256
f78d879159bbb1e2bfc807fe31726367dd97503dba177e7feb6ea9314ddeccc4

SHA512
83d1800e202c9f3947763bfcc12a5f568d6cd77d7a63c6f919937c4c751e154959c9f9dce345b233dd9bbe60a214d63145a63eabe27a396d8aeb93e064efc711

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

Filesize
950B

MD5
e4fead48cf0f88fd50d1ac0bee7e3ef3

SHA1
ae8c3bb77c0a20733822894b3a873ba95122e288

SHA256
d1874ac4f4793f8a581b0ce76aeda6135ae5a6d22637b5758b3ce2f60d5c2329

SHA512
f2aed094c0c4da62544f05809a9f45584df7953c33bb047096db70a36a70df2c2ac4124fba53c95234f2851b09c34f7fc8ce92fb414f22aab3ff3c1ceb2524c3

Download Submit
F:\AUTORUN.INF

Filesize
145B

MD5
ca13857b2fd3895a39f09d9dde3cca97

SHA1
8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

SHA256
cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

SHA512
55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

Download Submit
F:\AutoRun.exe

Filesize
261KB

MD5
c147a525419628354e2cf5f2fbac1861

SHA1
f2c12841ed7f80e84a6f5f142bed277aace4509c

SHA256
d3b67deaa4094313d1ab97d5b28c1da8777825d4a11f579e9cd584e78f4bef5c

SHA512
459087ce684e8db27cc187a44de70884159de52ce3f84d27cbbd0115eafc9592f55a33fde627cf0ec281aefe37754a380f15d96b38fb604b83c4498f28966205

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
258KB

MD5
d4e53ff995b62db58b4fe58d3e013928

SHA1
c4fe01bc630ba321d9cee775ba70bc9945f15308

SHA256
c5f101d2c71dbfa4b2c2a44fcc917bcce925734aa29789936d55149d5000206f

SHA512
536f4313c4b2af5ce12a8230deaab4b30add154ef15effa614d8e42e14b02fb2a1cbb49f327f62d95d0be542c1e2b1e8cbcf8e498a7701e8cee0613ad87c6412

Download Submit
memory/1888-285-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1888-259-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1888-234-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1888-368-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1888-246-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1888-362-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1888-248-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/1888-321-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1888-356-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1888-268-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1888-349-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1888-0-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/1888-344-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1888-297-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1888-333-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1888-309-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-260-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-310-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-322-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-298-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-334-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-286-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-345-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-274-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-351-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-10-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/2192-357-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-247-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-363-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-235-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-369-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download