9ab65884625468f01401f7b8a297f9156310dfb75b0e79190310b1bfb1ea2923

Analysis

max time kernel
145s
max time network
121s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
14-10-2024 17:50

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General

Target

436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
Size

10.0MB
MD5

436f7eb5c07a0951dda1c73b46092c9b
SHA1

2f93ea5cb1900753a2411526299822fcd14288f1
SHA256

9ab65884625468f01401f7b8a297f9156310dfb75b0e79190310b1bfb1ea2923
SHA512

4f4eded20cf5f0f2cc64339ff322900a588747cb914adf9d518e314f91ff0fe318e6b0ae1f0173ceeced640d00848aa4ac874bfcec381412b490ab0b5048ed3a
SSDEEP

98304:1i0li0khMMHMMMvMMZMMMlmMMMiMMMYJMMHMMM6MMZMMMqNMMzMMMUMMVMMMYJM9:40I0kxI2lyE

Score

10^/10

aspackv2 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"	436f7eb5c07a0951dda1c73b46092c9b_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/0x000b0000000122cf-2.dat	aspack_v212_v242
behavioral1/files/0x0008000000016dc9-38.dat	aspack_v212_v242
behavioral1/files/0x0001000000000026-61.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	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.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	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
1880	HelpMe.exe

Loads dropped DLL 2 IoCs

pid	Process
2232	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
2232	436f7eb5c07a0951dda1c73b46092c9b_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)	\??\A:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\O:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\U:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\K:	HelpMe.exe
File opened (read-only)	\??\X:	HelpMe.exe
File opened (read-only)	\??\E:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\G:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\N:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\S:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\A:	HelpMe.exe
File opened (read-only)	\??\H:	HelpMe.exe
File opened (read-only)	\??\J:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\K:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\Q:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\I:	HelpMe.exe
File opened (read-only)	\??\L:	HelpMe.exe
File opened (read-only)	\??\M:	HelpMe.exe
File opened (read-only)	\??\P:	HelpMe.exe
File opened (read-only)	\??\M:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\P:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\R:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\V:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\W:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\X:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\Z:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\E:	HelpMe.exe
File opened (read-only)	\??\T:	HelpMe.exe
File opened (read-only)	\??\V:	HelpMe.exe
File opened (read-only)	\??\H:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\L:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\Y:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\B:	HelpMe.exe
File opened (read-only)	\??\J:	HelpMe.exe
File opened (read-only)	\??\O:	HelpMe.exe
File opened (read-only)	\??\Z:	HelpMe.exe
File opened (read-only)	\??\I:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\N:	HelpMe.exe
File opened (read-only)	\??\Q:	HelpMe.exe
File opened (read-only)	\??\R:	HelpMe.exe
File opened (read-only)	\??\S:	HelpMe.exe
File opened (read-only)	\??\W:	HelpMe.exe
File opened (read-only)	\??\B:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\T:	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened (read-only)	\??\G:	HelpMe.exe
File opened (read-only)	\??\U:	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	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
File opened for modification	C:\AUTORUN.INF	436f7eb5c07a0951dda1c73b46092c9b_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	436f7eb5c07a0951dda1c73b46092c9b_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	HelpMe.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2232 wrote to memory of 1880	2232	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe	31
PID 2232 wrote to memory of 1880	2232	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe	31
PID 2232 wrote to memory of 1880	2232	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe	31
PID 2232 wrote to memory of 1880	2232	436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\436f7eb5c07a0951dda1c73b46092c9b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\436f7eb5c07a0951dda1c73b46092c9b_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:2232
- 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:1880

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-1-5-21-2703099537-420551529-3771253338-1000\desktop.ini.exe

Filesize
10.0MB

MD5
b434852d1b258de8385095ef39ec5f9a

SHA1
b6b039f103b24b6cf053f4af80a9b912b390f25a

SHA256
b8d4b22e5d5393569d46a1c822c17e5eb2d801e91a5d226f06af3eee2a7631b2

SHA512
69d01e9f8dbea25f7d5f3953bc96786fa948af624264d513d4febe82c646edf31aa21c6ba087e14aa89dd6ad50510f6e75b7781a24163fd9c3e0b58fd4ebc34c

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

Filesize
1KB

MD5
968eacdcf13ca89ce069bc51cde804ab

SHA1
a3d06d78494d3aa7d3d33b8210d25132a6d4ee3a

SHA256
a836a68a11bcbd6127db2d4de6b63aa4df0e602fb76537868a2bec8d16044545

SHA512
2bcc0dc3a37a75aa2d2da8d75a330139313eb6dd5d1715c22aca3290f3b808e977179f51ab3ef94419ff93cb3e5bc2493c6cec203b4ed817b984273c9c382ae9

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

Filesize
950B

MD5
cc16f2faf45b1100cae58a30c99c7c83

SHA1
c417f08a90064375e5ce949cd0e1db359c77fb61

SHA256
3f1da088be494bcd20a9cda728a4d7295619f143eaad09c6724b184dcabcc87a

SHA512
4d0a45452ad627674b5062ac5dee0c923c19f2667233d29916b02a50169fe54e6147b648dcdc28955fc343246189afb10e47341cbf478635d478b7d863b0e83a

Download Submit
F:\AUTORUN.INF

Filesize
145B

MD5
ca13857b2fd3895a39f09d9dde3cca97

SHA1
8b78c5b2ec97c372ebdcef92d14b0998f8dd6dd0

SHA256
cfe448b4506a95b33b529efa88f1ac704d8bdf98a941c065650ead27609318ae

SHA512
55e5b5325968d1e5314527fb2d26012f5aae4a1c38e305417be273400cb1c6d0c22b85bddb501d7a5720a3f53bb5caf6ada8a7894232344c4f6c6ef85d226b47

Download Submit
F:\AutoRun.exe

Filesize
10.0MB

MD5
436f7eb5c07a0951dda1c73b46092c9b

SHA1
2f93ea5cb1900753a2411526299822fcd14288f1

SHA256
9ab65884625468f01401f7b8a297f9156310dfb75b0e79190310b1bfb1ea2923

SHA512
4f4eded20cf5f0f2cc64339ff322900a588747cb914adf9d518e314f91ff0fe318e6b0ae1f0173ceeced640d00848aa4ac874bfcec381412b490ab0b5048ed3a

Download Submit
\Windows\SysWOW64\HelpMe.exe

Filesize
10.0MB

MD5
ba821acb8cbf18f1908279df5d09b1f3

SHA1
12f15bfcbe844d3fa044d75b984b50b8d5eca80c

SHA256
9fe1a82791d2343cabe61293f9b3d3c2e533f22760ac28455fdf89111b073645

SHA512
9b20e9862f2efe5a3d5751d02f195a9ad3638d66b01505601387ff167b5d8952603d6cea64e1d93460c81d1914d8ad7977892a2a21b5921934ce08a0b7cfa122

Download Submit
memory/1880-9-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2232-0-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads