modiloader | b5e939d8cbb67950f49fa05fe3de5043badb3a5d248bd4f56a495dc4a5eb284c

Analysis

max time kernel
147s
max time network
121s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
28-06-2024 02:31

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General

Target

18776d2fccb0606b081c4677304a9a95_JaffaCakes118.exe
Size

125KB
MD5

18776d2fccb0606b081c4677304a9a95
SHA1

cf2656a26fed2022e4cafdac5bbe3b03ba81a4e5
SHA256

b5e939d8cbb67950f49fa05fe3de5043badb3a5d248bd4f56a495dc4a5eb284c
SHA512

1f478a8c8dfa86fb40c078e4084b6d0927a452a73a1d273863182ef525175a82c1a02833fa2ff3ccb90b2e4160619af224302ab9eea7828ad08ecc03fa081a96
SSDEEP

3072:toy8j7VnNdrPHaSekwi+mWkEdfvoutZABL:N8jZ7rvaU3+mWVfvoSW5

Score

10^/10

modiloader evasion persistence trojan upx

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
UAC bypass 3 TTPs 1 IoCs
evasion trojan

Bypass User Account Control
T1548.002

Disable or Modify Tools
T1562.001

Modify Registry
T1112

Processes:

mstwain32.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mstwain32.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

ModiLoader Second Stage 17 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2032-12-0x0000000000400000-0x0000000000458000-memory.dmp	modiloader_stage2
behavioral1/memory/1616-20-0x0000000075A30000-0x0000000075B20000-memory.dmp	modiloader_stage2
behavioral1/memory/1616-21-0x0000000000400000-0x0000000000458000-memory.dmp	modiloader_stage2
behavioral1/memory/1616-24-0x0000000000400000-0x0000000000458000-memory.dmp	modiloader_stage2
behavioral1/memory/1616-25-0x0000000000400000-0x0000000000458000-memory.dmp	modiloader_stage2
behavioral1/memory/1616-30-0x0000000000400000-0x0000000000458000-memory.dmp	modiloader_stage2
behavioral1/memory/1616-33-0x0000000000400000-0x0000000000458000-memory.dmp	modiloader_stage2
behavioral1/memory/1616-36-0x0000000000400000-0x0000000000458000-memory.dmp	modiloader_stage2
behavioral1/memory/1616-40-0x0000000000400000-0x0000000000458000-memory.dmp	modiloader_stage2
behavioral1/memory/1616-43-0x0000000000400000-0x0000000000458000-memory.dmp	modiloader_stage2
behavioral1/memory/1616-46-0x0000000000400000-0x0000000000458000-memory.dmp	modiloader_stage2
behavioral1/memory/1616-49-0x0000000000400000-0x0000000000458000-memory.dmp	modiloader_stage2
behavioral1/memory/1616-52-0x0000000000400000-0x0000000000458000-memory.dmp	modiloader_stage2
behavioral1/memory/1616-55-0x0000000000400000-0x0000000000458000-memory.dmp	modiloader_stage2
behavioral1/memory/1616-58-0x0000000000400000-0x0000000000458000-memory.dmp	modiloader_stage2
behavioral1/memory/1616-61-0x0000000000400000-0x0000000000458000-memory.dmp	modiloader_stage2
behavioral1/memory/1616-64-0x0000000000400000-0x0000000000458000-memory.dmp	modiloader_stage2

Deletes itself 1 IoCs

Processes:

mstwain32.exe

pid process

1616 mstwain32.exe
Executes dropped EXE 1 IoCs

Processes:

mstwain32.exe

pid process

1616 mstwain32.exe

pid	process
1616	mstwain32.exe

pid	process
1616	mstwain32.exe

UPX packed file 19 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral1/memory/2032-0-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral1/memory/2032-12-0x0000000000400000-0x0000000000458000-memory.dmp	upx
C:\Windows\mstwain32.exe	upx
behavioral1/memory/1616-20-0x0000000075A30000-0x0000000075B20000-memory.dmp	upx
behavioral1/memory/1616-21-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral1/memory/1616-24-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral1/memory/1616-25-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral1/memory/1616-30-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral1/memory/1616-33-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral1/memory/1616-36-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral1/memory/1616-40-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral1/memory/1616-43-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral1/memory/1616-46-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral1/memory/1616-49-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral1/memory/1616-52-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral1/memory/1616-55-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral1/memory/1616-58-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral1/memory/1616-61-0x0000000000400000-0x0000000000458000-memory.dmp	upx
behavioral1/memory/1616-64-0x0000000000400000-0x0000000000458000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs
persistence

Registry Run Keys / Startup Folder
T1547.001

Modify Registry
T1112

Processes:

mstwain32.exe

description ioc process

Set value (str) \REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000\Software\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe" mstwain32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1340930862-1405011213-2821322012-1000\Software\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe"	mstwain32.exe

Checks whether UAC is enabled 1 TTPs 3 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

18776d2fccb0606b081c4677304a9a95_JaffaCakes118.exemstwain32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	18776d2fccb0606b081c4677304a9a95_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	mstwain32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

Drops file in Windows directory 4 IoCs

Processes:

18776d2fccb0606b081c4677304a9a95_JaffaCakes118.exemstwain32.exe

description	ioc	process
File created	C:\Windows\mstwain32.exe	18776d2fccb0606b081c4677304a9a95_JaffaCakes118.exe
File opened for modification	C:\Windows\mstwain32.exe	18776d2fccb0606b081c4677304a9a95_JaffaCakes118.exe
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe
File created	C:\Windows\cmsetac.dll	mstwain32.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

18776d2fccb0606b081c4677304a9a95_JaffaCakes118.exevssvc.exemstwain32.exe

description	pid	process
Token: SeDebugPrivilege	2032	18776d2fccb0606b081c4677304a9a95_JaffaCakes118.exe
Token: SeBackupPrivilege	1692	vssvc.exe
Token: SeRestorePrivilege	1692	vssvc.exe
Token: SeAuditPrivilege	1692	vssvc.exe
Token: SeDebugPrivilege	1616	mstwain32.exe
Token: SeDebugPrivilege	1616	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mstwain32.exe

pid process

1616 mstwain32.exe
1616 mstwain32.exe

pid	process
1616	mstwain32.exe
1616	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

18776d2fccb0606b081c4677304a9a95_JaffaCakes118.exe

description	pid	process	target process
PID 2032 wrote to memory of 1616	2032	18776d2fccb0606b081c4677304a9a95_JaffaCakes118.exe	mstwain32.exe
PID 2032 wrote to memory of 1616	2032	18776d2fccb0606b081c4677304a9a95_JaffaCakes118.exe	mstwain32.exe
PID 2032 wrote to memory of 1616	2032	18776d2fccb0606b081c4677304a9a95_JaffaCakes118.exe	mstwain32.exe
PID 2032 wrote to memory of 1616	2032	18776d2fccb0606b081c4677304a9a95_JaffaCakes118.exe	mstwain32.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

mstwain32.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mstwain32.exe
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe

C:\Users\Admin\AppData\Local\Temp\18776d2fccb0606b081c4677304a9a95_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\18776d2fccb0606b081c4677304a9a95_JaffaCakes118.exe"
1⤵
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2032

C:\Windows\mstwain32.exe
"C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\18776d2fccb0606b081c4677304a9a95_JaffaCakes118.exe"
2⤵
- UAC bypass
- Deletes itself
- Executes dropped EXE
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- System policy modification
PID:1616

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1692

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

C:\Windows\mstwain32.exe
Filesize
125KB

MD5
18776d2fccb0606b081c4677304a9a95

SHA1
cf2656a26fed2022e4cafdac5bbe3b03ba81a4e5

SHA256
b5e939d8cbb67950f49fa05fe3de5043badb3a5d248bd4f56a495dc4a5eb284c

SHA512
1f478a8c8dfa86fb40c078e4084b6d0927a452a73a1d273863182ef525175a82c1a02833fa2ff3ccb90b2e4160619af224302ab9eea7828ad08ecc03fa081a96

Download Submit
memory/1616-28-0x0000000075A30000-0x0000000075B20000-memory.dmp

Filesize
960KB

Download
memory/1616-64-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1616-25-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1616-61-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1616-16-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/1616-17-0x0000000002300000-0x000000000230E000-memory.dmp

Filesize
56KB

Download
memory/1616-20-0x0000000075A30000-0x0000000075B20000-memory.dmp

Filesize
960KB

Download
memory/1616-19-0x0000000075A40000-0x0000000075A41000-memory.dmp

Filesize
4KB

Download
memory/1616-21-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1616-23-0x0000000002300000-0x000000000230E000-memory.dmp

Filesize
56KB

Download
memory/1616-22-0x0000000000270000-0x0000000000278000-memory.dmp

Filesize
32KB

Download
memory/1616-24-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1616-58-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1616-55-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1616-49-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1616-30-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1616-33-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1616-36-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1616-40-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1616-43-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1616-46-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/1616-29-0x0000000075A30000-0x0000000075B20000-memory.dmp

Filesize
960KB

Download
memory/1616-52-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2032-5-0x0000000003700000-0x0000000003710000-memory.dmp

Filesize
64KB

Download
memory/2032-12-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download
memory/2032-1-0x0000000000260000-0x0000000000261000-memory.dmp

Filesize
4KB

Download
memory/2032-0-0x0000000000400000-0x0000000000458000-memory.dmp

Filesize
352KB

Download