e61e016f08831015aa39a818fc430b786f13f3611d269a8a88165c899730a4f7

Analysis

max time kernel
72s
max time network
126s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
09/01/2024, 19:38

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General

Target

4f0a7b8523cea2af5411490ec5a94333.exe
Size

666KB
MD5

4f0a7b8523cea2af5411490ec5a94333
SHA1

291f3a0e32334823c41da2e1013819bd9b133bd4
SHA256

e61e016f08831015aa39a818fc430b786f13f3611d269a8a88165c899730a4f7
SHA512

62488dd26192fcc487785e09f7493b990d54fba6b97aa1b201f3a746dd0b789e16b98d5bbd3f5e96f7b6b2cb0acc6266b29b558e52612bddbaf6e4c6873eb9bd
SSDEEP

12288:5MMpXKb0hNGh1kG0HWnAL7MMpXKb0hNGh1kG0HWnAL+:5MMpXS0hN0V0H7MMpXS0hN0V0H+

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"	4f0a7b8523cea2af5411490ec5a94333.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/0x000e0000000122f6-2.dat	aspack_v212_v242
behavioral1/files/0x000e0000000122f6-8.dat	aspack_v212_v242
behavioral1/files/0x000e0000000122f6-9.dat	aspack_v212_v242
behavioral1/files/0x000e0000000122f6-7.dat	aspack_v212_v242
behavioral1/files/0x000e0000000122f6-4.dat	aspack_v212_v242
behavioral1/files/0x0007000000014bf8-38.dat	aspack_v212_v242
behavioral1/files/0x0001000000000026-55.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	4f0a7b8523cea2af5411490ec5a94333.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	4f0a7b8523cea2af5411490ec5a94333.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
1788	HelpMe.exe

Loads dropped DLL 2 IoCs

pid	Process
2172	4f0a7b8523cea2af5411490ec5a94333.exe
2172	4f0a7b8523cea2af5411490ec5a94333.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)	\??\A:	HelpMe.exe
File opened (read-only)	\??\Z:	HelpMe.exe
File opened (read-only)	\??\E:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\P:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\V:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\E:	HelpMe.exe
File opened (read-only)	\??\K:	HelpMe.exe
File opened (read-only)	\??\O:	HelpMe.exe
File opened (read-only)	\??\R:	HelpMe.exe
File opened (read-only)	\??\Y:	HelpMe.exe
File opened (read-only)	\??\Q:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\R:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\T:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\M:	HelpMe.exe
File opened (read-only)	\??\T:	HelpMe.exe
File opened (read-only)	\??\U:	HelpMe.exe
File opened (read-only)	\??\L:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\M:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\S:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\Z:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\Q:	HelpMe.exe
File opened (read-only)	\??\A:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\O:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\N:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\U:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\I:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\K:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\Y:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\J:	HelpMe.exe
File opened (read-only)	\??\N:	HelpMe.exe
File opened (read-only)	\??\S:	HelpMe.exe
File opened (read-only)	\??\V:	HelpMe.exe
File opened (read-only)	\??\B:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\H:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\G:	HelpMe.exe
File opened (read-only)	\??\L:	HelpMe.exe
File opened (read-only)	\??\X:	HelpMe.exe
File opened (read-only)	\??\J:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\W:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\B:	HelpMe.exe
File opened (read-only)	\??\H:	HelpMe.exe
File opened (read-only)	\??\I:	HelpMe.exe
File opened (read-only)	\??\P:	HelpMe.exe
File opened (read-only)	\??\W:	HelpMe.exe
File opened (read-only)	\??\G:	4f0a7b8523cea2af5411490ec5a94333.exe
File opened (read-only)	\??\X:	4f0a7b8523cea2af5411490ec5a94333.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	C:\AUTORUN.INF	4f0a7b8523cea2af5411490ec5a94333.exe
File opened for modification	F:\AUTORUN.INF	HelpMe.exe
File opened for modification	F:\AUTORUN.INF	4f0a7b8523cea2af5411490ec5a94333.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\HelpMe.exe	HelpMe.exe
File created	C:\Windows\SysWOW64\HelpMe.exe	4f0a7b8523cea2af5411490ec5a94333.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 2172 wrote to memory of 1788	2172	4f0a7b8523cea2af5411490ec5a94333.exe	28
PID 2172 wrote to memory of 1788	2172	4f0a7b8523cea2af5411490ec5a94333.exe	28
PID 2172 wrote to memory of 1788	2172	4f0a7b8523cea2af5411490ec5a94333.exe	28
PID 2172 wrote to memory of 1788	2172	4f0a7b8523cea2af5411490ec5a94333.exe	28

C:\Users\Admin\AppData\Local\Temp\4f0a7b8523cea2af5411490ec5a94333.exe
"C:\Users\Admin\AppData\Local\Temp\4f0a7b8523cea2af5411490ec5a94333.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:2172
- 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:1788

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-1-5-21-1268429524-3929314613-1992311491-1000\desktop.ini.exe

Filesize
120KB

MD5
7d7bcab4c52b3be5ebc36ec15edf67e2

SHA1
6296f2005338b45b819e9684ddced8a519c34b14

SHA256
be60141cd555935f945f6ad1d52cc1a18a593a9aace4d9e673fc8d5328ae6d9b

SHA512
7131ac44103437fbdf8214e6a407b52869e365cf570256e88afdedc8f6e76d93bc8ea04d9e1cfd046e443ae1940187e2710e38835ea808370892b2bb43b3b76a

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

Filesize
1KB

MD5
2cbfeb8588fbaefa4a6a775bd3c55a82

SHA1
59e1c63cbf5991cedf2245ee2299ab6da00a6fa3

SHA256
035b4453dabc32f71d17d072c60c6674228743e951a331043b0f352994b43c27

SHA512
c24504a7d3facd6af3bde7af61a771d92a1bfc418925d762d521cbfc87b1441ecffc1bbe342ee3589d32e4900c2dc970cd0aecc8020a3a3060d1ff33bf8c1cc5

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

Filesize
954B

MD5
d8a3bc21ad5c8a4a0b48409d38dc287a

SHA1
26641bc3cf7e3300fc07f33a6a147316826f7ab0

SHA256
6ce25b904980ae0370f2e8f3bd14988018f40cd0c4c6451421578ba37997b6dc

SHA512
6f8aa574ca6d4c2e4f9c8f8b4cfe676c5b2a24ab6b9a5dba7874754c982232b16febe568599723e2c1b69126caf03e71e0d0b2a2b7a88fe190da0045d538e280

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

Filesize
173KB

MD5
5aa0bc02d1a8f4997ab590a0b3320563

SHA1
5673df495f279b0aadb87f7c3bcc6818c0658781

SHA256
4f17efb9b3ef88b1470b52e898fe93ab3462383c6d98a715541960ce18dd9316

SHA512
844ebe52c048d846f7e579198293fa7ffb1dd338a8253b2e8bb06f231b1d26c78432c8a8cfbb6266d85cfd1b0bd3222a1c9fdf122d72cce6b0d757767785c617

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

Filesize
143KB

MD5
a987c6c591bfa789987c146958ccd7b1

SHA1
ba7e99a5819691fa448ff7a5a26595c3aad2c0d0

SHA256
4f7bdf42861ffdd23b8d094c160040e85a34a6ece24b4508ffdb5422bd53936a

SHA512
508fa310fe5fe1c3dd351d2ba412e600042cfa9cb789b0efd60d1090e246383dbb3902f53b21347be2485476ff272a1a1e459d668fc7291cc36c8f6cb2d7bc00

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

Filesize
212KB

MD5
7238f6ec30c3e7a8d144a205b083c663

SHA1
b8c7a72536c4bc401b37f1a29bc2c57d0e27bf16

SHA256
d8143b4c1f0b0192919ba9bd9e087b152a8cef336f6397baa17aaa5b357ecc52

SHA512
eabb83ba1aea577f7e5f2dc9a053ff61eda7743949416ed2ddc817641e0719b7a08862d95a24e4b1200dde2f54409cc81fe41aa72d5cc045313e4f13744dfb7f

Download Submit
F:\AUTORUN.INF

Filesize
145B

MD5
ca13857b2fd3895a39f09d9dde3cca97

SHA1
8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

SHA256
cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

SHA512
55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

Download Submit
F:\AutoRun.exe

Filesize
167KB

MD5
c4dbd886096e72123aec2f3aeb40fa8e

SHA1
1330810707305405b61c0ada9244aded2ba4bb48

SHA256
f32440a9e1921e06b94839c8d4baf173bded28fbda2e45427be69b6bd3e00a91

SHA512
f1e7e481f676ed8d03b35794c83213c58325deb0f5450be6aa0f1249396cac85c409d4cc01feda13fbcf8d531cc5c86c015cab9bd07f1f02f3ad80b7f37cd342

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
60KB

MD5
9f449d8cda8191bb116b9c2522a378f2

SHA1
ad187fe7366fc37a20207a00f83c0360cf518335

SHA256
914f57654933701c0b913373e5b8c537da4ced607717de2b7fa0ed4cc23fc605

SHA512
59bc16f2cc18f66e594a464cb0daa119a3461a385c45e25ba245113cde659899661e7e2177292baf428db5d11cd761d8b3fa5f71da96c210628c244a5d9689ee

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
137KB

MD5
487122fe7e1fce57e066c292624b498a

SHA1
fe90ffa1a139d8e5e850d27c712feed3ae33291d

SHA256
566b1a3a7d46ba426f0593e6193954894187ee225eeacdad1b2547f0ec7a077b

SHA512
cb341588fbe224d01d86b49c749f4f388b02e2f2e055287b6c5a91865bde3e645143e7ff078e543585fd2ca699efe8081f88d3f5ba976513e0cdbfda62203183

Download Submit
memory/1788-10-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2172-0-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2172-104-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads