b750f083991480d06e2ecce65bf38f3fb33acdcd5c14b2abaaceb48d00929e67

Analysis

max time kernel
150s
max time network
120s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
13/06/2024, 06:28

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General

Target

a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
Size

780KB
MD5

a434202ac3de751db68069fc3aec25d3
SHA1

235e30c3e08a0d9a7a57490d802ee151ba38ef2d
SHA256

b750f083991480d06e2ecce65bf38f3fb33acdcd5c14b2abaaceb48d00929e67
SHA512

f24a053dfe22c8a87e023338671bd63b67b1b965f278538451eda217e91b0ac12fcc53087903a4a2e65127a099e144cddf5c3c56a86b782ae4fc520cf83e0771
SSDEEP

24576:ZMMpXS0hN0V0HUSGB2uJ2s4otqFCJrW9FqvSbqsHasgXhFHDAGtlRXZ+CP63n0Nb:Kwi0L0qJi

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"	a434202ac3de751db68069fc3aec25d3_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

ASPack v2.12-2.42 3 IoCs

Detects executables packed with ASPack v2.12-2.42

aspackv2

resource	yara_rule
behavioral1/files/0x000a000000012286-2.dat	aspack_v212_v242
behavioral1/files/0x0007000000015693-38.dat	aspack_v212_v242
behavioral1/files/0x0001000000000026-54.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	HelpMe.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Soft.lnk	a434202ac3de751db68069fc3aec25d3_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
2136	HelpMe.exe

Loads dropped DLL 2 IoCs

pid	Process
1700	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
1700	a434202ac3de751db68069fc3aec25d3_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)	\??\S:	HelpMe.exe
File opened (read-only)	\??\Z:	HelpMe.exe
File opened (read-only)	\??\N:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\Q:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\V:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\L:	HelpMe.exe
File opened (read-only)	\??\R:	HelpMe.exe
File opened (read-only)	\??\I:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\J:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\J:	HelpMe.exe
File opened (read-only)	\??\N:	HelpMe.exe
File opened (read-only)	\??\V:	HelpMe.exe
File opened (read-only)	\??\E:	HelpMe.exe
File opened (read-only)	\??\Q:	HelpMe.exe
File opened (read-only)	\??\H:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\K:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\P:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\Y:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\B:	HelpMe.exe
File opened (read-only)	\??\G:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\R:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\U:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\K:	HelpMe.exe
File opened (read-only)	\??\T:	HelpMe.exe
File opened (read-only)	\??\O:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\A:	HelpMe.exe
File opened (read-only)	\??\H:	HelpMe.exe
File opened (read-only)	\??\W:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\X:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\G:	HelpMe.exe
File opened (read-only)	\??\B:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\E:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\L:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\M:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\S:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\M:	HelpMe.exe
File opened (read-only)	\??\O:	HelpMe.exe
File opened (read-only)	\??\P:	HelpMe.exe
File opened (read-only)	\??\X:	HelpMe.exe
File opened (read-only)	\??\Y:	HelpMe.exe
File opened (read-only)	\??\T:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\A:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\Z:	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened (read-only)	\??\I:	HelpMe.exe
File opened (read-only)	\??\U:	HelpMe.exe
File opened (read-only)	\??\W:	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	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
File opened for modification	C:\AUTORUN.INF	a434202ac3de751db68069fc3aec25d3_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	a434202ac3de751db68069fc3aec25d3_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

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 2136	1700	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe	29
PID 1700 wrote to memory of 2136	1700	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe	29
PID 1700 wrote to memory of 2136	1700	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe	29
PID 1700 wrote to memory of 2136	1700	a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe	29

C:\Users\Admin\AppData\Local\Temp\a434202ac3de751db68069fc3aec25d3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\a434202ac3de751db68069fc3aec25d3_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
- Suspicious use of WriteProcessMemory
PID:1700
- 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:2136

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-1-5-21-2737914667-933161113-3798636211-1000\desktop.ini.exe

Filesize
781KB

MD5
a7a86484a1d2d8f0da1cafced4152173

SHA1
5f809a8682702e636c5319a721a24d6e76f8d77e

SHA256
12a9d66cda2eaf82f13021d08cb5fee14eca2a45a19ccdef1fa7510e2fa4242f

SHA512
bee9a8616bf367e15777784d4d5d97ca9431b5ab7a742bf14163ce465a79ea1329b5bac3ec2d656c510927b59ea79ee8c6fa9bc23d60106f1bc55be46022fd9a

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

Filesize
950B

MD5
e29b9ddf5bec91bde3e5f5cef2c820d1

SHA1
f0ef9c6b6e9646a9cde3fa956ae11c7a09bd5d1a

SHA256
3780d6503ca43e60832ef5f03d9b5a5ac030ead966b5f5202e9b5288de96f548

SHA512
680e7325fce62b3d7d7609070b64a6530c7abc9ec3c915163c64cd6984cc984914885a9b552bffa6a1084437bbd76dbc689c71f582cafdffa2e8995251db9759

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

Filesize
1KB

MD5
964df02d27327efcf71271b198e001c9

SHA1
93a681f1178f517ddf691c31531a8b4b74baef31

SHA256
82ba4ef97015d1ad776efcf5912513959849a28dc51dcf35114daaa161c43cfb

SHA512
4d7ebc4b956840b982e0ab3a4eabdb8aff3e1532fc7ee3a58c30e0ff3074b20f4a01b509f8a556935c22e8a78131d8fcb7188ccde5de610389d3844e9b3025c3

Download Submit
F:\AUTORUN.INF

Filesize
145B

MD5
ca13857b2fd3895a39f09d9dde3cca97

SHA1
8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

SHA256
cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

SHA512
55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

Download Submit
F:\AutoRun.exe

Filesize
780KB

MD5
a434202ac3de751db68069fc3aec25d3

SHA1
235e30c3e08a0d9a7a57490d802ee151ba38ef2d

SHA256
b750f083991480d06e2ecce65bf38f3fb33acdcd5c14b2abaaceb48d00929e67

SHA512
f24a053dfe22c8a87e023338671bd63b67b1b965f278538451eda217e91b0ac12fcc53087903a4a2e65127a099e144cddf5c3c56a86b782ae4fc520cf83e0771

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
779KB

MD5
98c8b6e613ca213dd89bff54b75b5534

SHA1
ef940a182850b2d1d8fc35e2aeae8843264bc0df

SHA256
f0d8068267cf50759aa827a4622d86118a533de819b5e4f3d4756ed9b6b96c98

SHA512
eb4ad28e0efd142de1e473464f4e258ff2ba63dc7126f814403bc36ca427c6ad038c47ce370e11b40f716f17499afd0026d4192bfa433f75c6aca782160dc595

Download Submit
memory/1700-269-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1700-289-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1700-226-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1700-365-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1700-236-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1700-359-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1700-238-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/1700-349-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1700-247-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1700-259-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1700-339-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1700-0-0x00000000003A0000-0x00000000003A1000-memory.dmp

Filesize
4KB

Download
memory/1700-327-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1700-279-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1700-319-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1700-309-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/1700-299-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2136-270-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2136-248-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2136-227-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2136-310-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2136-280-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2136-320-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2136-300-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2136-260-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2136-290-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2136-340-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2136-328-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2136-350-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2136-237-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2136-360-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2136-10-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads