7818e559bd7eb1a59e44bae2781519ee345c4213a96eb4fd587f6c31aaa0f58c

Analysis

max time kernel
145s
max time network
119s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/01/2024, 20:16

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General

Target

756bab043d61134b32672f731922b9ad.exe
Size

5.9MB
MD5

756bab043d61134b32672f731922b9ad
SHA1

cd259f4a8e1ff1d0713b03bf6a36044eb94d0e4d
SHA256

7818e559bd7eb1a59e44bae2781519ee345c4213a96eb4fd587f6c31aaa0f58c
SHA512

8984e42b966a057898ce641d892b8fa599efae68fa1f50cf134e2e8dae6eebfe3087b6c5805ab5f5057f3e70a02304fa22548f3f5a6d172ae038a94b87b77d14
SSDEEP

24576:ZMMpXS0hN0V0HZSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0Nf:Kwi0L0qk

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"	756bab043d61134b32672f731922b9ad.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 7 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x000c000000012327-2.dat	aspack_v212_v242
behavioral1/files/0x000c000000012327-8.dat	aspack_v212_v242
behavioral1/files/0x000c000000012327-7.dat	aspack_v212_v242
behavioral1/files/0x000c000000012327-4.dat	aspack_v212_v242
behavioral1/files/0x000c000000012327-9.dat	aspack_v212_v242
behavioral1/files/0x0007000000015651-38.dat	aspack_v212_v242
behavioral1/files/0x0001000000000026-61.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 opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	756bab043d61134b32672f731922b9ad.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	756bab043d61134b32672f731922b9ad.exe

Executes dropped EXE 1 IoCs

pid	Process
2144	HelpMe.exe

Loads dropped DLL 2 IoCs

pid	Process
3028	756bab043d61134b32672f731922b9ad.exe
3028	756bab043d61134b32672f731922b9ad.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)	\??\Y:	HelpMe.exe
File opened (read-only)	\??\N:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\P:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\V:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\Z:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\I:	HelpMe.exe
File opened (read-only)	\??\P:	HelpMe.exe
File opened (read-only)	\??\S:	HelpMe.exe
File opened (read-only)	\??\J:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\Q:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\E:	HelpMe.exe
File opened (read-only)	\??\N:	HelpMe.exe
File opened (read-only)	\??\R:	HelpMe.exe
File opened (read-only)	\??\W:	HelpMe.exe
File opened (read-only)	\??\Q:	HelpMe.exe
File opened (read-only)	\??\A:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\B:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\G:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\M:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\S:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\Y:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\K:	HelpMe.exe
File opened (read-only)	\??\X:	HelpMe.exe
File opened (read-only)	\??\X:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\T:	HelpMe.exe
File opened (read-only)	\??\Z:	HelpMe.exe
File opened (read-only)	\??\R:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\A:	HelpMe.exe
File opened (read-only)	\??\B:	HelpMe.exe
File opened (read-only)	\??\L:	HelpMe.exe
File opened (read-only)	\??\O:	HelpMe.exe
File opened (read-only)	\??\W:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\H:	HelpMe.exe
File opened (read-only)	\??\U:	HelpMe.exe
File opened (read-only)	\??\V:	HelpMe.exe
File opened (read-only)	\??\E:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\H:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\K:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\L:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\O:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\T:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\G:	HelpMe.exe
File opened (read-only)	\??\I:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\U:	756bab043d61134b32672f731922b9ad.exe
File opened (read-only)	\??\J:	HelpMe.exe
File opened (read-only)	\??\M:	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	756bab043d61134b32672f731922b9ad.exe
File opened for modification	C:\AUTORUN.INF	756bab043d61134b32672f731922b9ad.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	756bab043d61134b32672f731922b9ad.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 3028 wrote to memory of 2144	3028	756bab043d61134b32672f731922b9ad.exe	28
PID 3028 wrote to memory of 2144	3028	756bab043d61134b32672f731922b9ad.exe	28
PID 3028 wrote to memory of 2144	3028	756bab043d61134b32672f731922b9ad.exe	28
PID 3028 wrote to memory of 2144	3028	756bab043d61134b32672f731922b9ad.exe	28

C:\Users\Admin\AppData\Local\Temp\756bab043d61134b32672f731922b9ad.exe
"C:\Users\Admin\AppData\Local\Temp\756bab043d61134b32672f731922b9ad.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:3028
- 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:2144

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

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Downloads

C:\$Recycle.Bin\S-1-5-21-3818056530-936619650-3554021955-1000\desktop.ini.exe

Filesize
1.7MB

MD5
6a71c7c9aae8a4d111b014697ab699d3

SHA1
f2ac96dc726bd5b1fb9aab5683f5e70bc0d72e41

SHA256
f9831837c9d16617d32669d394b0bb87f2b431ded6104658a5e12c952ec1ff04

SHA512
222efd0983544031ac24e953162976116741dec53e1f0da55bb827c53973fc10c25c8bdeca4ccf0e55f1098da8b070cded61421b61d3818cf6db54ee8f16a343

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

Filesize
1KB

MD5
3519f0563b26b33e610ba18281622789

SHA1
004a2b4f4c014ca9d75f95d0690d9f6c25abb9aa

SHA256
98238dcf66967ccc0ce81ae865e32145ea19511879e0a05ec1b0c6c51df98a9b

SHA512
9bacfbe4f9443b66123097dea74c8f891ea243bd2b547e93a32cc6eb4e69ce72e5d259aec0a639dab3649f92ed670d0931f6bcac56f1763473a029bbc4a55a2b

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

Filesize
950B

MD5
bc85055336665e4a538e071c81a20e2a

SHA1
a1158a0a5c3d0a97795c3ede7b2b576b8ac1e924

SHA256
f4c25112c7daf9b5fb1429a48584e113b80f2b818a6730cf154e015901c005e9

SHA512
e0f5202a878cbba3112cdae0bcf8b25fe22a2e2a92ba9ad4798faabe8390d91ea71ff7001ce162f2d5801022819d55566086097ee95d44201788fc384c3d4374

Download Submit
C:\Windows\SysWOW64\HelpMe.exe

Filesize
636KB

MD5
42f26ed376f4e7894330e59d77dc5af1

SHA1
a7ce6afc8ef1b2406ad7936cd6a24a3a574f29a0

SHA256
6087fca4e2056141f9739d1ce66d4b326f40cc34cc26bb73af3364baccf231cd

SHA512
941541a32aaa1792d194ae9961b1bc518e8850e4462b45b67101ff1be6923c925f3e2373e3eed063a551533cead94e7675e941a16e9ac1759488e6eb3d4ece6c

Download Submit
C:\Windows\SysWOW64\HelpMe.exe

Filesize
567KB

MD5
2fa9fe1ef28eb0fb3ec393360780324a

SHA1
fc4762440762130bdcc7fdb1e602c9115e96c65a

SHA256
20fe9585600f53600da6ed8c7be36522e8e97d9dd5b14f5a3ec94744344dead4

SHA512
a4b643b3695fa5a0a4d3311c532c8772f95580b1a00457ecb91d07bcef19cc4a3db9c9b1d349dc625c6d490d3571ba5158229610a2789fbc4bb9b52d5769f63e

Download Submit
C:\Windows\SysWOW64\HelpMe.exe

Filesize
1.0MB

MD5
7c5050979402512dfb9b221b5784cba8

SHA1
a7270f67bf4c0aefc52c18e61b19b6ab3803f3b5

SHA256
ff45805fea350a65f5294af85d5094aff996fa7f690b24fd36ec1b3c802ef4f7

SHA512
68f8a567e00bf4e3b619e9099e2afa356767eb1c1a4ace031fa150a00a77e5075754b8c823ead0d376234042ae656f8f96156502ab07c587f8ae558bbba6fce8

Download Submit
F:\AUTORUN.INF

Filesize
145B

MD5
ca13857b2fd3895a39f09d9dde3cca97

SHA1
8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

SHA256
cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

SHA512
55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

Download Submit
F:\AutoRun.exe

Filesize
1.6MB

MD5
e9f694ef9ab552b4d2751ffb287263f7

SHA1
2b76a611d30cf2009842f7ff60f62faede7b501a

SHA256
0647f8983b53291b502d5e73347768e7178cd6ebf5dcf43211f58a0b4c23d5d2

SHA512
56f907a0a373d557a36c60338920d79d26f5a7b70e174ad5855ff5f79199b9d492840d2e204be77bf71ac6da6ad2dbf3c6311a698e91176d15b301a8d6540c98

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
1.7MB

MD5
e4fa1e6b63a13629d5a857ead5a8130a

SHA1
69b3c042eced1ad70bbd3f5f87f9156b50dad80a

SHA256
34211fac055018f7ab22f4496aff391ad2537b86154ef4d540eaf53ec7b4ea66

SHA512
a3eece92396e9a70d484aa40c488f48ca4e733c287de1f0672fc418d9f2eb284e68c04e6b996138432228821aefebd39909ee3407495e51542564e21d66ef5f8

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
957KB

MD5
ef72f3821a26a31d33a44a7d93a0634d

SHA1
5b6fc3575cb1958a20396084fcd707243ca5b45c

SHA256
fe3334a3d6be292911d73d74cbbaa095fac664eaa043ad1af20364ff8d749a26

SHA512
6e034fddeced0ce01b3bb67bf8e5a0d3395aa17bae01926e0142c8dbffcbdb4aeaf3f554fa102f0c5b0cdc5121b63ba640a171c8c9403c91fbab02166ca32c67

Download Submit
memory/2144-261-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2144-329-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2144-361-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2144-229-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2144-351-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2144-239-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2144-341-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2144-249-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2144-10-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2144-321-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2144-311-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2144-271-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2144-301-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2144-281-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2144-291-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3028-320-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3028-340-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3028-280-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3028-310-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3028-270-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3028-1-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/3028-300-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3028-328-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3028-290-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3028-248-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3028-256-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3028-238-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3028-350-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3028-228-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/3028-360-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads