bcfb667a2c45940ad4674f23e10f3fcf5af3708ff78b64d180cf6d8e1f512ef2

Analysis

max time kernel
148s
max time network
30s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
10/01/2024, 19:32

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

36ee0e6caffac0e32220a3f949a8caba.exe
Size

921KB
MD5

36ee0e6caffac0e32220a3f949a8caba
SHA1

5947cd25fe9fad2e94d67ed0a4bc2e08914b9ae0
SHA256

bcfb667a2c45940ad4674f23e10f3fcf5af3708ff78b64d180cf6d8e1f512ef2
SHA512

b7c763b6fe82eef18d408d16c9bb03c488929b6756ab97682f980eec684fabcb821fb75cd5dba253764185c1b7bfd02c969b900f86ab60cf8dc1d73582af69f3
SSDEEP

6144:LiMmXRH6pXfSb0ceR/VFAHh1kgcs0HW1kyApHhP+gDzvRGDWd4oTqW+lowK42euE:5MMpXKb0hNGh1kG0HWnALbp4os31BKDY

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"	HelpMe.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe HelpMe.exe"	36ee0e6caffac0e32220a3f949a8caba.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/0x000d0000000122c5-2.dat	aspack_v212_v242
behavioral1/files/0x0007000000015596-38.dat	aspack_v212_v242
behavioral1/files/0x0001000000000026-65.dat	aspack_v212_v242

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	36ee0e6caffac0e32220a3f949a8caba.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	36ee0e6caffac0e32220a3f949a8caba.exe

Executes dropped EXE 1 IoCs

pid	Process
2712	HelpMe.exe

Loads dropped DLL 31 IoCs

pid	Process
2460	36ee0e6caffac0e32220a3f949a8caba.exe
2460	36ee0e6caffac0e32220a3f949a8caba.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	HelpMe.exe
2712	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)	\??\B:	HelpMe.exe
File opened (read-only)	\??\J:	HelpMe.exe
File opened (read-only)	\??\O:	HelpMe.exe
File opened (read-only)	\??\S:	HelpMe.exe
File opened (read-only)	\??\W:	HelpMe.exe
File opened (read-only)	\??\R:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\U:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\W:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\T:	HelpMe.exe
File opened (read-only)	\??\J:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\L:	36ee0e6caffac0e32220a3f949a8caba.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)	\??\Z:	HelpMe.exe
File opened (read-only)	\??\O:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\A:	HelpMe.exe
File opened (read-only)	\??\V:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\P:	HelpMe.exe
File opened (read-only)	\??\H:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\K:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\Z:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\H:	HelpMe.exe
File opened (read-only)	\??\Q:	HelpMe.exe
File opened (read-only)	\??\T:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\Y:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\Q:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\S:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\X:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\M:	HelpMe.exe
File opened (read-only)	\??\U:	HelpMe.exe
File opened (read-only)	\??\V:	HelpMe.exe
File opened (read-only)	\??\A:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\G:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\I:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\N:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\P:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\I:	HelpMe.exe
File opened (read-only)	\??\L:	HelpMe.exe
File opened (read-only)	\??\N:	HelpMe.exe
File opened (read-only)	\??\B:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\E:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\X:	HelpMe.exe
File opened (read-only)	\??\Y:	HelpMe.exe
File opened (read-only)	\??\M:	36ee0e6caffac0e32220a3f949a8caba.exe
File opened (read-only)	\??\E:	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	HelpMe.exe
File opened for modification	F:\AUTORUN.INF	36ee0e6caffac0e32220a3f949a8caba.exe
File opened for modification	C:\AUTORUN.INF	36ee0e6caffac0e32220a3f949a8caba.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\HelpMe.exe	36ee0e6caffac0e32220a3f949a8caba.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 2460 wrote to memory of 2712	2460	36ee0e6caffac0e32220a3f949a8caba.exe	28
PID 2460 wrote to memory of 2712	2460	36ee0e6caffac0e32220a3f949a8caba.exe	28
PID 2460 wrote to memory of 2712	2460	36ee0e6caffac0e32220a3f949a8caba.exe	28
PID 2460 wrote to memory of 2712	2460	36ee0e6caffac0e32220a3f949a8caba.exe	28

C:\Users\Admin\AppData\Local\Temp\36ee0e6caffac0e32220a3f949a8caba.exe
"C:\Users\Admin\AppData\Local\Temp\36ee0e6caffac0e32220a3f949a8caba.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:2460
- 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
  PID:2712

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-1-5-21-928733405-3780110381-2966456290-1000\desktop.ini.exe

Filesize
922KB

MD5
a1e2e0c650918470cc5ed532c80bd85b

SHA1
31b0b27f59c74405308dc2865dc1df8e78580f3c

SHA256
b55c2d6c213743b79b2805ae6f8a5fe593be9979dafd2e5a1455b404493483a4

SHA512
2dafb401f83879add7b3764afba5bdc94b81682f7ecbdafd68becb5e3e060afa53e0c3f7ea07b40e1bf9781dd5907fd8c9948d0b89eea898f5293f69531e6552

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

Filesize
950B

MD5
802232367c00f81fd287dcc6b27e7614

SHA1
95195a2253315f96a22aa6e029ebcb9f835bbe44

SHA256
aad073dbf5d0456bd45c2de6acc54173ffd9ef9fa4d290c82f9a31645e2452c9

SHA512
700514315b132e7c75b9e14a1f2d3f2d3288464b7335c5847b7266148a5bb10c324e3c67bd59939fde3b9e081bb92adf4b848321f6a5b827ea155260e07ae48b

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

Filesize
1KB

MD5
6e058c18617310fe3df628240cdc6f76

SHA1
5b9ec6ad0daa211bda0040de51ac2bcff42b7d3a

SHA256
ac87916a6db90232776a20d6a3d532be5c854d1797167df3ed37d5bbab7d2e28

SHA512
54d3ba8588106163d69d9eaab7ba6f2c7b21c05dd200c3862ebada302eaf6c47118a0cfd5dfe0dd56b6ea2213b82102129fb22f546b77506d28772459e13f815

Download Submit
F:\AUTORUN.INF

Filesize
145B

MD5
ca13857b2fd3895a39f09d9dde3cca97

SHA1
8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

SHA256
cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

SHA512
55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

Download Submit
F:\AutoRun.exe

Filesize
921KB

MD5
36ee0e6caffac0e32220a3f949a8caba

SHA1
5947cd25fe9fad2e94d67ed0a4bc2e08914b9ae0

SHA256
bcfb667a2c45940ad4674f23e10f3fcf5af3708ff78b64d180cf6d8e1f512ef2

SHA512
b7c763b6fe82eef18d408d16c9bb03c488929b6756ab97682f980eec684fabcb821fb75cd5dba253764185c1b7bfd02c969b900f86ab60cf8dc1d73582af69f3

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
409KB

MD5
a3dbaf57a7773d57d91ae86aad979bdb

SHA1
1e14804802c11a12ccdc91dfa752c81d5aaa915d

SHA256
c9344141fc16b1948179171b28a999aba1ac7bdfb80bebe99f00b3cf7ab91aba

SHA512
5ce4fb46a79f23bc11d997ffc541e7fe91745a66746db5e5e0db55df3ed369b21b03a4977a3f8b1256784d9616c578448df9e4bd4d1bc2ef82bb727f15dead0e

Download Submit
memory/2460-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2460-90-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2712-10-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads