345efb6e2d178dc9c57c9959d005a1f709340cc1e00a80960483ffbca6c4954d

Analysis

max time kernel
145s
max time network
119s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
12/02/2024, 09:53

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General

Target

96dfcbc0a357630ce67db6083cf5bf3d.exe
Size

6.3MB
MD5

96dfcbc0a357630ce67db6083cf5bf3d
SHA1

e5c9b296e5d09e340f394a7ad751b7a71368823d
SHA256

345efb6e2d178dc9c57c9959d005a1f709340cc1e00a80960483ffbca6c4954d
SHA512

ac3a99dd49796883eccae155bda30c28dbdc0b4c637b6cbf0a99c23cd68d9112a687b65b494305e3327038f852bc9e4de4a9025974f183e9522b12d007d7b016
SSDEEP

49152:NEs1qB8NIMI8Sfpwotkzaxc1OGz8iB8NIMI8Sfpwotkzaxc1OGz8j:NE2HIMzKpXOMGQvIMzKpXOMGQj

Score

10^/10

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"	96dfcbc0a357630ce67db6083cf5bf3d.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

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	96dfcbc0a357630ce67db6083cf5bf3d.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	96dfcbc0a357630ce67db6083cf5bf3d.exe

Executes dropped EXE 1 IoCs

pid	Process
2728	HelpMe.exe

Loads dropped DLL 2 IoCs

pid	Process
1884	96dfcbc0a357630ce67db6083cf5bf3d.exe
1884	96dfcbc0a357630ce67db6083cf5bf3d.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)	\??\Q:	HelpMe.exe
File opened (read-only)	\??\A:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\J:	HelpMe.exe
File opened (read-only)	\??\I:	HelpMe.exe
File opened (read-only)	\??\M:	HelpMe.exe
File opened (read-only)	\??\N:	HelpMe.exe
File opened (read-only)	\??\O:	HelpMe.exe
File opened (read-only)	\??\R:	HelpMe.exe
File opened (read-only)	\??\U:	HelpMe.exe
File opened (read-only)	\??\M:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\Q:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\Z:	HelpMe.exe
File opened (read-only)	\??\V:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\W:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\A:	HelpMe.exe
File opened (read-only)	\??\G:	HelpMe.exe
File opened (read-only)	\??\K:	HelpMe.exe
File opened (read-only)	\??\T:	HelpMe.exe
File opened (read-only)	\??\J:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\S:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\V:	HelpMe.exe
File opened (read-only)	\??\E:	HelpMe.exe
File opened (read-only)	\??\S:	HelpMe.exe
File opened (read-only)	\??\W:	HelpMe.exe
File opened (read-only)	\??\I:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\R:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\Y:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\N:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\P:	HelpMe.exe
File opened (read-only)	\??\E:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\L:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\O:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\P:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\T:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\U:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\H:	HelpMe.exe
File opened (read-only)	\??\Y:	HelpMe.exe
File opened (read-only)	\??\G:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\H:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\X:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\Z:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\B:	HelpMe.exe
File opened (read-only)	\??\L:	HelpMe.exe
File opened (read-only)	\??\X:	HelpMe.exe
File opened (read-only)	\??\B:	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened (read-only)	\??\K:	96dfcbc0a357630ce67db6083cf5bf3d.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	96dfcbc0a357630ce67db6083cf5bf3d.exe
File opened for modification	C:\AUTORUN.INF	96dfcbc0a357630ce67db6083cf5bf3d.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	96dfcbc0a357630ce67db6083cf5bf3d.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 1884 wrote to memory of 2728	1884	96dfcbc0a357630ce67db6083cf5bf3d.exe	28
PID 1884 wrote to memory of 2728	1884	96dfcbc0a357630ce67db6083cf5bf3d.exe	28
PID 1884 wrote to memory of 2728	1884	96dfcbc0a357630ce67db6083cf5bf3d.exe	28
PID 1884 wrote to memory of 2728	1884	96dfcbc0a357630ce67db6083cf5bf3d.exe	28

C:\Users\Admin\AppData\Local\Temp\96dfcbc0a357630ce67db6083cf5bf3d.exe
"C:\Users\Admin\AppData\Local\Temp\96dfcbc0a357630ce67db6083cf5bf3d.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:1884
- 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:2728

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-1-5-21-3627615824-4061627003-3019543961-1000\desktop.ini.exe

Filesize
6.3MB

MD5
1576187693f306c8b6eb9fc34528df2c

SHA1
a41de0140d258bb8119cc1c896f627d24f2da52a

SHA256
efadb1d3f63b4705639e81f5cb404a82a8bc4aa842cdd3e183bc0577350765d0

SHA512
039fb8d73dc2b876305d88f0288a7eebbc99e9e0fc48e01e11381f03cdaa649d65df49375428969259e6e70a7e501aaa113fc120e224364af4f2045339a71930

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

Filesize
1KB

MD5
7b3b6fded0f49c8cca12fec7a9eac905

SHA1
11ca152c021673d3e500775c0c57d774b176da69

SHA256
17e73ca0ab415b7dcf214a7d9f85498a56527851aec297dbdb61ff8ed7b14a15

SHA512
fac7a01b25c06fc37549818bb2b10109944c63c964b6f982dd391893106f251bca4b1e7e4b9e52b56f922d449c56ad520de615f29269e8b19b68d0a0da450949

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

Filesize
954B

MD5
3ccb9b73c5f35d3cbad3333ea8c6d42b

SHA1
95a59d4b6b1e00171d1d74a9cd7b6026cb383478

SHA256
8b01c8b0c5394e6ec1f77e18aa9b526f425299b1deb529cf0393057b4d7da527

SHA512
a94ae905cb7c1c8c898225a7c315f7c8b23ea7a10b514e1caef6effcf9e85cc0666d6313097b7992f3eb3b7825cdd2dc9d09c36b21b0a62595fda9f0f2f30b8f

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

Filesize
864KB

MD5
032f241650743ccb6f60bbe3e79b0a4d

SHA1
02e92b2e0ef8239e330c7db7f1d628b45f06b648

SHA256
afd7fd746c3aa9fb48d2b7ed99f7709a46a419576488ab6d31d1982996fb667e

SHA512
1e72fb11a0dfe95c70cc2e3b2987f13254be710348d533a523df9aae37cf9a414ef5755fd8e8c0d19fcd0eaefbf0fe5065053de80e29f6f15ef0dd214d0dac13

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

Filesize
1.3MB

MD5
5b84271bd7b7e1b34d07e7db4b786c32

SHA1
d1ed30993c4670f98e372dbbc607e242a2bce452

SHA256
66a47c1e844273dbd5447cc85189ad1d1c865029eb50587c92e61dc1d38c25df

SHA512
970bcc9c410cc7b0481536befabc2c2f92986cfcac59c7b9002edc31d673df96943f4419ff244af53d30c33edda6b14a7231d352b4349cc818bba9069754817d

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

Filesize
1.3MB

MD5
6338d7d20b6605173ffc2cbac7e3fe98

SHA1
e0017a73621ebd7d12475e11d202a0fb8b200507

SHA256
4d994d4ef5a05116a97d948ecc8673118a530f6744a11fe2fec8c5aa7b67fa38

SHA512
363a144be57873336ea2f7fdb7ba1eeb4f8b6f1b727918b2e078db8e62be32366d912a4047a18d3550d2797685d6c4440ea64fdc9ab2c1fbbb244a2172434881

Download Submit
F:\AUTORUN.INF

Filesize
145B

MD5
ca13857b2fd3895a39f09d9dde3cca97

SHA1
8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

SHA256
cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

SHA512
55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

Download Submit
F:\AutoRun.exe

Filesize
6.3MB

MD5
96dfcbc0a357630ce67db6083cf5bf3d

SHA1
e5c9b296e5d09e340f394a7ad751b7a71368823d

SHA256
345efb6e2d178dc9c57c9959d005a1f709340cc1e00a80960483ffbca6c4954d

SHA512
ac3a99dd49796883eccae155bda30c28dbdc0b4c637b6cbf0a99c23cd68d9112a687b65b494305e3327038f852bc9e4de4a9025974f183e9522b12d007d7b016

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
2.1MB

MD5
e248db26f49ab5dd99c8547deec49239

SHA1
598e32cdc2713bab0af90b11a727725434eedf0b

SHA256
b036b5264474d878115c5c22f1d98d53cf7eda8eee76b6422f7db1c507ba6038

SHA512
01f563019af211bb987023bb4ac196ae1e8903bdd422f5bd78d7d6819152c4ae650dcf3fdcab71e010bc24d9384dfd27e7170d67ac6e273ef311aa4842fb9dd8

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
1.2MB

MD5
0d6d051daa88dd1921344650d4657de3

SHA1
12ec0622125a08f94702ac6717c42ebf7c9bf69f

SHA256
82b020c61d1117452f66bec2c0c2e5ccb40e3f9777e4b15f0005ebf6b9dfed2f

SHA512
ab4baacc1efd0fa40728a655d58454c834eefac726d67183d7a766134b8fc6a1aa33c050da13414cd8deb506d209ecc6a124ed43b560966f70934eabd417ac19

Download Submit
memory/1884-0-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/1884-4-0x0000000001C20000-0x0000000001C9C000-memory.dmp

Filesize
496KB

Download
memory/1884-231-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/1884-1-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/1884-236-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/1884-237-0x0000000001C20000-0x0000000001C9C000-memory.dmp

Filesize
496KB

Download
memory/1884-243-0x0000000001C20000-0x0000000001C9C000-memory.dmp

Filesize
496KB

Download
memory/2728-13-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2728-11-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/2728-238-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads