ec4cd1b7ee4220b41cc739fdeafe4abef736b63942de482c2dac35bd5de7864d

Analysis

max time kernel
145s
max time network
18s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-09-2024 22:59

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General

Target

ee98af6625db71981750d105c4950849_JaffaCakes118.exe
Size

991KB
MD5

ee98af6625db71981750d105c4950849
SHA1

a5a8d37ca219a08020c42c13b3fd0c615904e2e1
SHA256

ec4cd1b7ee4220b41cc739fdeafe4abef736b63942de482c2dac35bd5de7864d
SHA512

371e94baed164e451140c9c4f5c8774f85e387a1975c1fbfab509e126c74daa7b286e82a9da5d04ada78e8a148dac24c1d3b8b2f7db58caeed18f941fecb0de2
SSDEEP

24576:TEtl9mRda1cSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0NuJv7:oEs1h5

Score

10^/10

discovery 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"	ee98af6625db71981750d105c4950849_JaffaCakes118.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	HelpMe.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	ee98af6625db71981750d105c4950849_JaffaCakes118.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
2588	HelpMe.exe

Loads dropped DLL 2 IoCs

pid	Process
488	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
488	ee98af6625db71981750d105c4950849_JaffaCakes118.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)	\??\X:	HelpMe.exe
File opened (read-only)	\??\A:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\E:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\M:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\Q:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\S:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\E:	HelpMe.exe
File opened (read-only)	\??\L:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\Z:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\A:	HelpMe.exe
File opened (read-only)	\??\K:	HelpMe.exe
File opened (read-only)	\??\M:	HelpMe.exe
File opened (read-only)	\??\Y:	HelpMe.exe
File opened (read-only)	\??\B:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\H:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\O:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\Q:	HelpMe.exe
File opened (read-only)	\??\V:	HelpMe.exe
File opened (read-only)	\??\I:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\V:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\B:	HelpMe.exe
File opened (read-only)	\??\I:	HelpMe.exe
File opened (read-only)	\??\O:	HelpMe.exe
File opened (read-only)	\??\U:	HelpMe.exe
File opened (read-only)	\??\J:	HelpMe.exe
File opened (read-only)	\??\P:	HelpMe.exe
File opened (read-only)	\??\R:	HelpMe.exe
File opened (read-only)	\??\S:	HelpMe.exe
File opened (read-only)	\??\T:	HelpMe.exe
File opened (read-only)	\??\K:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\N:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\P:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\W:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\G:	HelpMe.exe
File opened (read-only)	\??\Z:	HelpMe.exe
File opened (read-only)	\??\G:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\T:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\U:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\W:	HelpMe.exe
File opened (read-only)	\??\N:	HelpMe.exe
File opened (read-only)	\??\J:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\R:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\X:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\Y:	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened (read-only)	\??\H:	HelpMe.exe
File opened (read-only)	\??\L:	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	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
File opened for modification	C:\AUTORUN.INF	ee98af6625db71981750d105c4950849_JaffaCakes118.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	ee98af6625db71981750d105c4950849_JaffaCakes118.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

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ee98af6625db71981750d105c4950849_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HelpMe.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 488 wrote to memory of 2588	488	ee98af6625db71981750d105c4950849_JaffaCakes118.exe	29
PID 488 wrote to memory of 2588	488	ee98af6625db71981750d105c4950849_JaffaCakes118.exe	29
PID 488 wrote to memory of 2588	488	ee98af6625db71981750d105c4950849_JaffaCakes118.exe	29
PID 488 wrote to memory of 2588	488	ee98af6625db71981750d105c4950849_JaffaCakes118.exe	29

C:\Users\Admin\AppData\Local\Temp\ee98af6625db71981750d105c4950849_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ee98af6625db71981750d105c4950849_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Drops startup file
- Loads dropped DLL
- Enumerates connected drives
- Drops autorun.inf file
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:488
- 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
  - System Location Discovery: System Language Discovery
  PID:2588

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\$Recycle.Bin\S-1-5-21-457978338-2990298471-2379561640-1000\desktop.ini.exe

Filesize
992KB

MD5
92ca76dead9e0aae53b0cec169a244c1

SHA1
aedfcc823b1d71cf363b0140f542526cb9ec809b

SHA256
82f20cb641b5e742037053ffce2448be9e2e53f05a658b094cecdbf83b6a79f9

SHA512
016a4c44d0d3c2e287b8dadb0ffaf34311a9ef6f01caeca5d7bd2952b8cacdb32d8fe1c1e5f711222e3fd519aa509244130361e4dee5213f080556b70439e252

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

Filesize
1KB

MD5
344bf28bdbfc39c6aa0cff28932e024a

SHA1
7c95267a750014a71a55cf0deb957cde7e0c5cf0

SHA256
d3d0b64dda42b015fa1886919f6c5c643a6e87c7d9841a9fcd93efcfb33c798c

SHA512
3032ebcd272a9176c3eba1f38ba7c6593a9176ccc758915d7fbb3020921c822a670dc7d2cc1ee6a04aaecc85332743f6cc70c6bc256ff444b4e4627a260f0d41

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

Filesize
950B

MD5
c911f4258414af1be59fdcde0badefe2

SHA1
9e66792ce1fef42df881968df5baf94acce9b341

SHA256
4f4ddef4752d6b45c419e8860a2c0b38bb599e19a7b51c55cd1ecff6eec32d2d

SHA512
4d387d20166adf8e3308c98664736a3455893c59e38d06e2268ba0f41aefed7941e3e4e1e433a916f0f6f19ce9eae408663d337298d350d61e03d6ea69ca1888

Download Submit
F:\AUTORUN.INF

Filesize
145B

MD5
ca13857b2fd3895a39f09d9dde3cca97

SHA1
8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

SHA256
cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

SHA512
55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

Download Submit
F:\AutoRun.exe

Filesize
991KB

MD5
ee98af6625db71981750d105c4950849

SHA1
a5a8d37ca219a08020c42c13b3fd0c615904e2e1

SHA256
ec4cd1b7ee4220b41cc739fdeafe4abef736b63942de482c2dac35bd5de7864d

SHA512
371e94baed164e451140c9c4f5c8774f85e387a1975c1fbfab509e126c74daa7b286e82a9da5d04ada78e8a148dac24c1d3b8b2f7db58caeed18f941fecb0de2

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
799KB

MD5
e2de31549040b35262c3b68df86844fa

SHA1
1ea286ea4667f8e73d8283018bf472becb72f670

SHA256
d0b41076dafa32efc3ee6cd8030ab08370560530ca42626ac1fe6041455e8600

SHA512
ae4ac099aac995ca38f910aa89789060e516f18187bbf8bd586c7e18df9c0c06c0f9bb92a24728adc3bce5b61ffb592dda7ba26ecacdf013d7cc43708459e1d9

Download Submit
memory/488-331-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/488-243-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/488-365-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/488-57-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/488-74-0x0000000000480000-0x00000000004F7000-memory.dmp

Filesize
476KB

Download
memory/488-343-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/488-295-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/488-97-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/488-355-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/488-10-0x0000000000480000-0x00000000004F7000-memory.dmp

Filesize
476KB

Download
memory/488-325-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/488-0-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/488-253-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/488-1-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/488-261-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/488-315-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/488-273-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/488-305-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/488-285-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2588-254-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2588-286-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2588-296-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2588-274-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2588-306-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2588-266-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2588-316-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2588-244-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2588-326-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2588-98-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2588-332-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2588-75-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2588-344-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2588-13-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2588-356-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2588-11-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download
memory/2588-366-0x0000000000400000-0x0000000000477000-memory.dmp

Filesize
476KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads