e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969

Analysis

max time kernel
115s
max time network
18s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
18/09/2024, 23:58

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General

Target

e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
Size

3.3MB
MD5

ce0cfa774b5453a216b53a6cdf7241b0
SHA1

3600aa18d9f92eaffd7dea724d5f008bdf0b61ab
SHA256

e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969
SHA512

046fc8001698df63988bc9b413bb864ffa2db2fc807ba6de616d393c19c3008a19bae5af183e6ae285088166ddfdd68e98ebb4f1559b4877b5b55bd3c116e605
SSDEEP

24576:5MMpXS0hN0V0HYSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0Nf:qwi0L0q1piyx5W1

Score

10^/10

aspackv2 discovery 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"	HelpMe.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe HelpMe.exe"	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.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/0x000c000000016d32-4.dat	aspack_v212_v242
behavioral1/files/0x0009000000018f2c-38.dat	aspack_v212_v242
behavioral1/files/0x0001000000000026-46.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	HelpMe.exe
File created	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	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe

Executes dropped EXE 1 IoCs

pid	Process
1596	HelpMe.exe

Loads dropped DLL 2 IoCs

pid	Process
1848	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
1848	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.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)	\??\M:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\R:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\G:	HelpMe.exe
File opened (read-only)	\??\K:	HelpMe.exe
File opened (read-only)	\??\R:	HelpMe.exe
File opened (read-only)	\??\O:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\T:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\Y:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\A:	HelpMe.exe
File opened (read-only)	\??\B:	HelpMe.exe
File opened (read-only)	\??\M:	HelpMe.exe
File opened (read-only)	\??\O:	HelpMe.exe
File opened (read-only)	\??\S:	HelpMe.exe
File opened (read-only)	\??\Y:	HelpMe.exe
File opened (read-only)	\??\A:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\E:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\G:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\K:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\W:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\V:	HelpMe.exe
File opened (read-only)	\??\Z:	HelpMe.exe
File opened (read-only)	\??\I:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\L:	HelpMe.exe
File opened (read-only)	\??\J:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\V:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\I:	HelpMe.exe
File opened (read-only)	\??\P:	HelpMe.exe
File opened (read-only)	\??\B:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\N:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\P:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\S:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\Q:	HelpMe.exe
File opened (read-only)	\??\T:	HelpMe.exe
File opened (read-only)	\??\H:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\L:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\E:	HelpMe.exe
File opened (read-only)	\??\U:	HelpMe.exe
File opened (read-only)	\??\W:	HelpMe.exe
File opened (read-only)	\??\Q:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\U:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\X:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\Z:	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened (read-only)	\??\H:	HelpMe.exe
File opened (read-only)	\??\J:	HelpMe.exe
File opened (read-only)	\??\N:	HelpMe.exe
File opened (read-only)	\??\X:	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	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
File opened for modification	C:\AUTORUN.INF	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.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	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.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

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HelpMe.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1848 wrote to memory of 1596	1848	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe	30
PID 1848 wrote to memory of 1596	1848	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe	30
PID 1848 wrote to memory of 1596	1848	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe	30
PID 1848 wrote to memory of 1596	1848	e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe	30

C:\Users\Admin\AppData\Local\Temp\e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe
"C:\Users\Admin\AppData\Local\Temp\e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969N.exe"
1⤵
- Modifies WinLogon for persistence
- Drops startup file
- Loads dropped DLL
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1848
- 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
  - System Location Discovery: System Language Discovery
  PID:1596

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\$Recycle.Bin\S-1-5-21-457978338-2990298471-2379561640-1000\desktop.ini.exe

Filesize
3.3MB

MD5
3053919d56e913a4b8b05f8d00495f24

SHA1
5fda9746cd4b6333d8817fbffce83fb02ba8ce93

SHA256
90c11217aa4d23eba63bdea39cbec7a01fd609f00ad1295f3c2dff01e770f2f8

SHA512
7b8c2606400787bde48aa7a87660d3b6dd361174a7b67d0de99327f90c0467bb5e40c3343e4ec4611191fa4a3b5ccb8ae9606f5867b09a8e5b948f9298b67356

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

Filesize
1KB

MD5
e35eb0f0a0842f0a4e4ee35d2c210e81

SHA1
1f0c779d91f2b3e2f1c45313744d39f2e2e36b06

SHA256
986e65af59f0ef20b2e31015406e5fcbd2a202ff523f3618f61802cf31292a69

SHA512
bb22a9b3f46fe8b21b97b57eda1d68108d541bacde8fd790f7c714722384eba39aeadc276ce24ca7008b47c345f8b07b16bf640f27ca98f9838eefdfe832efba

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

Filesize
950B

MD5
914b9f950fbbb66b7943c49fe7ad209b

SHA1
89959b46090317805182a019d994a1b7e945f043

SHA256
f09c049ed53237cc0303bfe92cbb34752af0c56157adff9b784c919c02abfb0d

SHA512
305724a5c87e54afca02a2bcf92e85e16f5ca0b95d0ced8181d86e00e744329023d07c580295518b695f3197430635f8345de70831f377b3f717300875dc4d3f

Download Submit
F:\AUTORUN.INF

Filesize
145B

MD5
ca13857b2fd3895a39f09d9dde3cca97

SHA1
8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

SHA256
cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

SHA512
55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

Download Submit
F:\AutoRun.exe

Filesize
3.3MB

MD5
ce0cfa774b5453a216b53a6cdf7241b0

SHA1
3600aa18d9f92eaffd7dea724d5f008bdf0b61ab

SHA256
e3f84259e31817c4b23b46af4c4f8f73d26f205af4ad1f6acbda430baaf53969

SHA512
046fc8001698df63988bc9b413bb864ffa2db2fc807ba6de616d393c19c3008a19bae5af183e6ae285088166ddfdd68e98ebb4f1559b4877b5b55bd3c116e605

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
3.0MB

MD5
be89d2050f52e31ccb97e942f6986d67

SHA1
b843c9b6e67a7915d555298827ae5887637e632b

SHA256
226bdff312854ab8975b430130aceccdf6c0802e7ef1f2a37892a447feb1f7d4

SHA512
e43936db01290a33df2aa7e557d6a3ae9fe910080b8e8a7730be1c31de0ea0fdb3ee952ac1d25e4393cb22fdc9477d8e586652f05c970250285d9cc424e58956

Download Submit
memory/1596-10-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/1848-0-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads