8e5baf96f62fab27ddf02ded10ae29cca1946defcca9245e091b81359ebab83e

Analysis

max time kernel
146s
max time network
121s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
13-02-2024 10:59

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General

Target

993f65ea49b033f781ec1c071f4e34df.exe
Size

2.2MB
MD5

993f65ea49b033f781ec1c071f4e34df
SHA1

0ef33b1149c38b975d770ccf55a5984af3823578
SHA256

8e5baf96f62fab27ddf02ded10ae29cca1946defcca9245e091b81359ebab83e
SHA512

92d161be2a37b68aea93fe01ad534948dba6c5b0ed83db4aebbfc116da98bf66c723d78d6ad7eb25d33c4218f945913711860ab9c3ba5364c40b324cdfe678c8
SSDEEP

24576:ZMMpXS0hN0V0HZHMMpXS0hN0V0HZCSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDT:Kwi0L0q+wi0L0qRyxd

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"	993f65ea49b033f781ec1c071f4e34df.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/0x000c0000000122db-2.dat	aspack_v212_v242
behavioral1/files/0x00310000000146d4-38.dat	aspack_v212_v242
behavioral1/files/0x0001000000000026-57.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	993f65ea49b033f781ec1c071f4e34df.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	993f65ea49b033f781ec1c071f4e34df.exe

Executes dropped EXE 1 IoCs

pid	Process
2192	HelpMe.exe

Loads dropped DLL 2 IoCs

pid	Process
828	993f65ea49b033f781ec1c071f4e34df.exe
828	993f65ea49b033f781ec1c071f4e34df.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)	\??\G:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\L:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\X:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\J:	HelpMe.exe
File opened (read-only)	\??\M:	HelpMe.exe
File opened (read-only)	\??\W:	HelpMe.exe
File opened (read-only)	\??\B:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\I:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\K:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\N:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\Q:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\S:	HelpMe.exe
File opened (read-only)	\??\Z:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\K:	HelpMe.exe
File opened (read-only)	\??\P:	HelpMe.exe
File opened (read-only)	\??\Z:	HelpMe.exe
File opened (read-only)	\??\R:	HelpMe.exe
File opened (read-only)	\??\P:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\R:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\E:	HelpMe.exe
File opened (read-only)	\??\H:	HelpMe.exe
File opened (read-only)	\??\I:	HelpMe.exe
File opened (read-only)	\??\L:	HelpMe.exe
File opened (read-only)	\??\M:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\T:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\V:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\Q:	HelpMe.exe
File opened (read-only)	\??\V:	HelpMe.exe
File opened (read-only)	\??\X:	HelpMe.exe
File opened (read-only)	\??\A:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\E:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\S:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\A:	HelpMe.exe
File opened (read-only)	\??\B:	HelpMe.exe
File opened (read-only)	\??\U:	HelpMe.exe
File opened (read-only)	\??\J:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\W:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\O:	HelpMe.exe
File opened (read-only)	\??\T:	HelpMe.exe
File opened (read-only)	\??\H:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\O:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\U:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\Y:	993f65ea49b033f781ec1c071f4e34df.exe
File opened (read-only)	\??\G:	HelpMe.exe
File opened (read-only)	\??\N:	HelpMe.exe
File opened (read-only)	\??\Y:	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	993f65ea49b033f781ec1c071f4e34df.exe
File opened for modification	C:\AUTORUN.INF	993f65ea49b033f781ec1c071f4e34df.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	HelpMe.exe
File created	C:\Windows\SysWOW64\HelpMe.exe	993f65ea49b033f781ec1c071f4e34df.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 828 wrote to memory of 2192	828	993f65ea49b033f781ec1c071f4e34df.exe	28
PID 828 wrote to memory of 2192	828	993f65ea49b033f781ec1c071f4e34df.exe	28
PID 828 wrote to memory of 2192	828	993f65ea49b033f781ec1c071f4e34df.exe	28
PID 828 wrote to memory of 2192	828	993f65ea49b033f781ec1c071f4e34df.exe	28

C:\Users\Admin\AppData\Local\Temp\993f65ea49b033f781ec1c071f4e34df.exe
"C:\Users\Admin\AppData\Local\Temp\993f65ea49b033f781ec1c071f4e34df.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:828
- 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: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

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Downloads

C:\$Recycle.Bin\S-1-5-21-3308111660-3636268597-2291490419-1000\desktop.ini.exe

Filesize
2.2MB

MD5
5d4eb72226621d89ab558326c20d0019

SHA1
14997b4b03b41115a2e993d75e59937a5c7ad7b0

SHA256
970d02a56a544c6920d5af82fd45b23b11d6df31ee2e3d28e04bc51c64c01c56

SHA512
d7776e0b7b432b41a1513b530350561c7824aab40f7ccd9f880a0267602b565c5e712a913c6c7011c41b211b78245af44a380fd5f97395ff0fc67bdc4a69d827

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

Filesize
954B

MD5
8fce8fc7081cd076a4da3a925c528ffa

SHA1
31278f36250decdded108da62e55aca4c1953003

SHA256
6a5f02a3c0da7bead1f5feddc60b27c48aac1af056589b4d558a1555941db2db

SHA512
d0cad156e008e8ce2c6ffbcbb4c7c7626d81745d3cb8fb5ff48c0d491d67f49c847ca5640aa7f68d9e1100ebb03fd8ad1994cf4d5a18bfa6647217bb89d2fb42

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

Filesize
1KB

MD5
50830cea2c38fbd509cef15c93b0671c

SHA1
5fd4f2da8618220a35f4dcba5677bffb0b081893

SHA256
20c85a0c5debdcfd019c42c1e4d935e6020484e3025f40e44c929e86ff83a385

SHA512
e31aa994f2d54032fb0287bdb3d63bf4575bd97ab911a93ad72d7357c1e59be3c8e1f6ee36242a9062b3f6e83bf7cca8f2c50268d3c6f6b27656a4a84ef36afe

Download Submit
F:\AUTORUN.INF

Filesize
145B

MD5
ca13857b2fd3895a39f09d9dde3cca97

SHA1
8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

SHA256
cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

SHA512
55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

Download Submit
F:\AutoRun.exe

Filesize
2.2MB

MD5
993f65ea49b033f781ec1c071f4e34df

SHA1
0ef33b1149c38b975d770ccf55a5984af3823578

SHA256
8e5baf96f62fab27ddf02ded10ae29cca1946defcca9245e091b81359ebab83e

SHA512
92d161be2a37b68aea93fe01ad534948dba6c5b0ed83db4aebbfc116da98bf66c723d78d6ad7eb25d33c4218f945913711860ab9c3ba5364c40b324cdfe678c8

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
2.2MB

MD5
6df927c145d46bcd2a9909abaa6470aa

SHA1
a5f7f874a9461cd11eaa4e3a79a411c181be4acd

SHA256
9f016a4b9a71e4030b3d890e30a0614c71cb1b5839a9c94fb3a594b4cbf8ddca

SHA512
f45a78da843d51113918aa1e014baaaaa3b51b21dc86b169afa5a77249099315873dc29f98bdc7893af8f1394cd290ddadeb9cfeefbe897d01f0a97614c0e697

Download Submit
memory/828-249-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/828-240-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/828-0-0x0000000000230000-0x0000000000231000-memory.dmp

Filesize
4KB

Download
memory/828-361-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/828-339-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/828-347-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/828-90-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/828-299-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/828-238-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/828-259-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/828-331-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/828-269-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/828-321-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/828-281-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/828-307-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/828-291-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-91-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-292-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-300-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-282-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-312-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-270-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

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

Filesize
480KB

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

Filesize
480KB

Download
memory/2192-332-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-250-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-340-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-239-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-352-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2192-10-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2192-362-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads