7aaffd165e5afc593a062d7390ebb9236271d09f8b51efa96b35c5f285bf5fb9

Analysis

max time kernel
134s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
02-07-2024 11:18

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General

Target

1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe
Size

24KB
MD5

1f21f94ba45380359311002a4e1d3da5
SHA1

465670e0b865c35a92b04057c453c14141f7634f
SHA256

7aaffd165e5afc593a062d7390ebb9236271d09f8b51efa96b35c5f285bf5fb9
SHA512

9d4fe824a01c111f61a20561890babbdb2c08ae98348f5e659e0186141e75ab67ff8eaae043f5b83ec8a063b608e4593f28900810767c6bd390cd4c3f276d3a7
SSDEEP

384:E0dJn1nUzy5q/AsprougOc4QUrFheclmfSp6A/fG3+RoRR5N0zw:vyzyU/DroV0eclmfCVe3+K9m

Score

8^/10

discovery exploit upx

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

4272 takeown.exe
4448 icacls.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

4272 takeown.exe
4448 icacls.exe
UPX packed file 2 IoCs
Detects executables packed with UPX/modified UPX open source packer.
upx

Processes:

resource yara_rule

behavioral2/memory/2072-0-0x0000000000400000-0x0000000000415000-memory.dmp upx
behavioral2/memory/2072-10-0x0000000000400000-0x0000000000415000-memory.dmp upx

pid	process
4272	takeown.exe
4448	icacls.exe

pid	process
4272	takeown.exe
4448	icacls.exe

resource	yara_rule
behavioral2/memory/2072-0-0x0000000000400000-0x0000000000415000-memory.dmp	upx
behavioral2/memory/2072-10-0x0000000000400000-0x0000000000415000-memory.dmp	upx

Drops file in System32 directory 4 IoCs

Processes:

1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe

description	ioc	process
File created	C:\Windows\SysWOW64\ole.dll	1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\imm32.dll.log	1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\imm32.dll.log	1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe
File created	C:\Windows\SysWOW64\imm32.dll	1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe

pid process

2072 1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe
2072 1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exetakeown.exe

description pid process

Token: SeDebugPrivilege 2072 1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege 4272 takeown.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe

pid process

2072 1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe
2072 1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe

pid	process
2072	1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe
2072	1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe

description	pid	process
Token: SeDebugPrivilege	2072	1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4272	takeown.exe

pid	process
2072	1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe
2072	1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe

description	pid	process	target process
PID 2072 wrote to memory of 4272	2072	1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe	takeown.exe
PID 2072 wrote to memory of 4272	2072	1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe	takeown.exe
PID 2072 wrote to memory of 4272	2072	1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe	takeown.exe
PID 2072 wrote to memory of 4448	2072	1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe	icacls.exe
PID 2072 wrote to memory of 4448	2072	1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe	icacls.exe
PID 2072 wrote to memory of 4448	2072	1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe	icacls.exe
PID 2072 wrote to memory of 4776	2072	1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe	cmd.exe
PID 2072 wrote to memory of 4776	2072	1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe	cmd.exe
PID 2072 wrote to memory of 4776	2072	1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1f21f94ba45380359311002a4e1d3da5_JaffaCakes118.exe"
1⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2072

C:\Windows\SysWOW64\takeown.exe
takeown /F C:\Windows\system32\imm32.dll
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
- Suspicious use of AdjustPrivilegeToken
PID:4272

C:\Windows\SysWOW64\icacls.exe
icacls C:\Windows\system32\imm32.dll /grant administrators:f
2⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:4448

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c c:\dele57753f.bat
2⤵
PID:4776

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\??\c:\dele57753f.bat
Filesize
235B

MD5
5fb19fe926faa7b3895d54fc86d2a74c

SHA1
999fc16efdb9ec673699cd2bbefcf47ee3d7d4a6

SHA256
db4f9c474517a8eb468ab0bc48d09682c56d0aeebbb9e93bb3b7a135e1ecca53

SHA512
81bae8972c0cde24c877518db6bdc4abb475c67f5c00fe1ca1579c1943fb65686f0fa1e934e5e42b5c9142122f9dc6fb461ceacbeaad67ee6e975cd68123a1af

Download Submit
memory/2072-0-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2072-10-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/2072-11-0x0000000075C80000-0x0000000075CA5000-memory.dmp

Filesize
148KB

Download