be984dcb05ac824b5ffcab2d7c0c2c5f131da0801c8efb93e953a65d71cadd41

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-06-2024 11:08

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

19e46408cdf85c1790728b2ad1e00dec_JaffaCakes118.exe
Size

108KB
MD5

19e46408cdf85c1790728b2ad1e00dec
SHA1

f5c355b93840cb4038852d67611ca7160a5692f3
SHA256

be984dcb05ac824b5ffcab2d7c0c2c5f131da0801c8efb93e953a65d71cadd41
SHA512

641dda503ec23dec97562952d297bac137f0064b47f47837c73f8d42c76e8c4c26f69eae5e0e5bf2653c8ad754f5520460b54d5410cc5c359676cf4415523754
SSDEEP

3072:AxCuqnzsUkYrPHl5dBONYIoriXIrKfiHpI61FFTF:Ax/YrLdBONYH+IrK0I61

Score

8^/10

defense_evasion discovery exploit

Malware Config

Signatures

Possible privilege escalation attempt 2 IoCs
exploit

Processes:

takeown.exeicacls.exe

pid process

1980 takeown.exe
2256 icacls.exe
Deletes itself 1 IoCs

Processes:

regsvr32.exe

pid process

2300 regsvr32.exe
Loads dropped DLL 1 IoCs

Processes:

regsvr32.exe

pid process

2300 regsvr32.exe
Modifies file permissions 1 TTPs 2 IoCs
discovery

File and Directory Permissions Modification
T1222

Processes:

takeown.exeicacls.exe

pid process

1980 takeown.exe
2256 icacls.exe
File and Directory Permissions Modification: Windows File and Directory Permissions Modification 1 TTPs
defense_evasion

Windows File and Directory Permissions Modification
T1222.001

pid	process
1980	takeown.exe
2256	icacls.exe

pid	process
2300	regsvr32.exe

pid	process
2300	regsvr32.exe

pid	process
1980	takeown.exe
2256	icacls.exe

Drops file in System32 directory 3 IoCs

Processes:

regsvr32.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\apa.dll	regsvr32.exe
File created	C:\Windows\SysWOW64\rpcss.dll	regsvr32.exe
File opened for modification	C:\Windows\SysWOW64\rpcss.dll	regsvr32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

regsvr32.exe

pid process

2300 regsvr32.exe
2300 regsvr32.exe
2300 regsvr32.exe
2300 regsvr32.exe
2300 regsvr32.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

regsvr32.exetakeown.exe

description pid process

Token: SeDebugPrivilege 2300 regsvr32.exe
Token: SeTakeOwnershipPrivilege 1980 takeown.exe

pid	process
2300	regsvr32.exe
2300	regsvr32.exe
2300	regsvr32.exe
2300	regsvr32.exe
2300	regsvr32.exe

description	pid	process
Token: SeDebugPrivilege	2300	regsvr32.exe
Token: SeTakeOwnershipPrivilege	1980	takeown.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

19e46408cdf85c1790728b2ad1e00dec_JaffaCakes118.exeregsvr32.exe

description	pid	process	target process
PID 2976 wrote to memory of 2300	2976	19e46408cdf85c1790728b2ad1e00dec_JaffaCakes118.exe	regsvr32.exe
PID 2976 wrote to memory of 2300	2976	19e46408cdf85c1790728b2ad1e00dec_JaffaCakes118.exe	regsvr32.exe
PID 2976 wrote to memory of 2300	2976	19e46408cdf85c1790728b2ad1e00dec_JaffaCakes118.exe	regsvr32.exe
PID 2976 wrote to memory of 2300	2976	19e46408cdf85c1790728b2ad1e00dec_JaffaCakes118.exe	regsvr32.exe
PID 2976 wrote to memory of 2300	2976	19e46408cdf85c1790728b2ad1e00dec_JaffaCakes118.exe	regsvr32.exe
PID 2976 wrote to memory of 2300	2976	19e46408cdf85c1790728b2ad1e00dec_JaffaCakes118.exe	regsvr32.exe
PID 2976 wrote to memory of 2300	2976	19e46408cdf85c1790728b2ad1e00dec_JaffaCakes118.exe	regsvr32.exe
PID 2300 wrote to memory of 1980	2300	regsvr32.exe	takeown.exe
PID 2300 wrote to memory of 1980	2300	regsvr32.exe	takeown.exe
PID 2300 wrote to memory of 1980	2300	regsvr32.exe	takeown.exe
PID 2300 wrote to memory of 1980	2300	regsvr32.exe	takeown.exe
PID 2300 wrote to memory of 2256	2300	regsvr32.exe	icacls.exe
PID 2300 wrote to memory of 2256	2300	regsvr32.exe	icacls.exe
PID 2300 wrote to memory of 2256	2300	regsvr32.exe	icacls.exe
PID 2300 wrote to memory of 2256	2300	regsvr32.exe	icacls.exe
PID 2300 wrote to memory of 604	2300	regsvr32.exe	svchost.exe
PID 2300 wrote to memory of 604	2300	regsvr32.exe	svchost.exe
PID 2300 wrote to memory of 684	2300	regsvr32.exe	svchost.exe
PID 2300 wrote to memory of 684	2300	regsvr32.exe	svchost.exe
PID 2300 wrote to memory of 748	2300	regsvr32.exe	svchost.exe
PID 2300 wrote to memory of 748	2300	regsvr32.exe	svchost.exe
PID 2300 wrote to memory of 808	2300	regsvr32.exe	svchost.exe
PID 2300 wrote to memory of 808	2300	regsvr32.exe	svchost.exe
PID 2300 wrote to memory of 856	2300	regsvr32.exe	svchost.exe
PID 2300 wrote to memory of 856	2300	regsvr32.exe	svchost.exe
PID 2300 wrote to memory of 972	2300	regsvr32.exe	svchost.exe
PID 2300 wrote to memory of 972	2300	regsvr32.exe	svchost.exe
PID 2300 wrote to memory of 240	2300	regsvr32.exe	svchost.exe
PID 2300 wrote to memory of 240	2300	regsvr32.exe	svchost.exe
PID 2300 wrote to memory of 1076	2300	regsvr32.exe	svchost.exe
PID 2300 wrote to memory of 1076	2300	regsvr32.exe	svchost.exe
PID 2300 wrote to memory of 1704	2300	regsvr32.exe	svchost.exe
PID 2300 wrote to memory of 1704	2300	regsvr32.exe	svchost.exe
PID 2300 wrote to memory of 2672	2300	regsvr32.exe	cmd.exe
PID 2300 wrote to memory of 2672	2300	regsvr32.exe	cmd.exe
PID 2300 wrote to memory of 2672	2300	regsvr32.exe	cmd.exe
PID 2300 wrote to memory of 2672	2300	regsvr32.exe	cmd.exe

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch
1⤵
PID:604

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k RPCSS
1⤵
PID:684

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
1⤵
PID:748

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
1⤵
PID:808

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs
1⤵
PID:856

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService
1⤵
PID:972

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService
1⤵
PID:240

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
1⤵
PID:1076

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
1⤵
PID:1704

C:\Users\Admin\AppData\Local\Temp\19e46408cdf85c1790728b2ad1e00dec_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\19e46408cdf85c1790728b2ad1e00dec_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2976

C:\Windows\SysWOW64\regsvr32.exe
"C:\Windows\system32\regsvr32.exe" /s C:\Users\Admin\AppData\Local\Temp\f760e24~.tmp ,C:\Users\Admin\AppData\Local\Temp\19e46408cdf85c1790728b2ad1e00dec_JaffaCakes118.exe
2⤵
- Deletes itself
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2300

C:\Windows\SysWOW64\takeown.exe
takeown /f "C:\Windows\system32\rpcss.dll"
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
- Suspicious use of AdjustPrivilegeToken
PID:1980

C:\Windows\SysWOW64\icacls.exe
icacls "C:\Windows\system32\rpcss.dll" /grant administrators:F
3⤵
- Possible privilege escalation attempt
- Modifies file permissions
PID:2256

C:\Windows\SysWOW64\cmd.exe
cmd /c del %SystemRoot%\system32\rpcss.dll~*
3⤵
PID:2672

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Windows File and Directory Permissions Modification

T1222.001

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\f760e24~.tmp
Filesize
915KB

MD5
36f922a60f155a6f3559bdb5f85a2701

SHA1
2f3b4b2dd7e66910288d3e932968b21544db8343

SHA256
3077dfd2d02e710597f6b398a9b9c5bb0f797f6ad6c6013ef0e222d6c7b13bbd

SHA512
6567f10e5b426e55e83370593bd62046d63f8c020f83451f72fde08aee5f2f38f480fe1cba5312efd5bb863d81971f60cbd49ba31cf6dbcac55e7fd3cb84947f

Download Submit
memory/604-12-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download