modiloader | 534a87cd1da6e9bcc0795b99c5f52f436093072fa582f08a3e9869bc9e37e4d3

Analysis

max time kernel
144s
max time network
123s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
01-07-2024 22:36

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General

Target

1cc1b6fc2ec89fe4ec20ddaf4cc59c4f_JaffaCakes118.exe
Size

113KB
MD5

1cc1b6fc2ec89fe4ec20ddaf4cc59c4f
SHA1

70fcf8017e8b529f3c0112c09756ac0b6396398d
SHA256

534a87cd1da6e9bcc0795b99c5f52f436093072fa582f08a3e9869bc9e37e4d3
SHA512

4f9f73b97bb1c33238c485496f991ab33f050596df317283d6c54c6a06ed72b6280a7f23faa9ef8e920691d3cd99a095e2bc51befaad8cc9dc2f80b33787a789
SSDEEP

3072:Aoy8j7VnNdrPHaSekwi+mWSL4UfEK72out:w8jZ7rvaU3+mWSsUctoS

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 16 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1708-11-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral1/memory/2936-21-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral1/memory/2936-24-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral1/memory/2936-25-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral1/memory/2936-30-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral1/memory/2936-33-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral1/memory/2936-36-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral1/memory/2936-40-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral1/memory/2936-43-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral1/memory/2936-46-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral1/memory/2936-49-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral1/memory/2936-52-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral1/memory/2936-55-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral1/memory/2936-58-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral1/memory/2936-61-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral1/memory/2936-64-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

Processes:

mstwain32.exe

pid process

2936 mstwain32.exe

pid	process
2936	mstwain32.exe

UPX packed file 19 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1708-0-0x0000000000400000-0x0000000000451000-memory.dmp	upx
C:\Windows\mstwain32.exe	upx
behavioral1/memory/2936-12-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/1708-11-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2936-21-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2936-24-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2936-25-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2936-30-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2936-33-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2936-36-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2936-40-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2936-43-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2936-46-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2936-49-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2936-52-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2936-55-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2936-58-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2936-61-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral1/memory/2936-64-0x0000000000400000-0x0000000000451000-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-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe" mstwain32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\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:

1cc1b6fc2ec89fe4ec20ddaf4cc59c4f_JaffaCakes118.exemstwain32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	1cc1b6fc2ec89fe4ec20ddaf4cc59c4f_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:

mstwain32.exe1cc1b6fc2ec89fe4ec20ddaf4cc59c4f_JaffaCakes118.exe

description	ioc	process
File created	C:\Windows\cmsetac.dll	mstwain32.exe
File created	C:\Windows\mstwain32.exe	1cc1b6fc2ec89fe4ec20ddaf4cc59c4f_JaffaCakes118.exe
File opened for modification	C:\Windows\mstwain32.exe	1cc1b6fc2ec89fe4ec20ddaf4cc59c4f_JaffaCakes118.exe
File created	C:\Windows\ntdtcstp.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:

1cc1b6fc2ec89fe4ec20ddaf4cc59c4f_JaffaCakes118.exevssvc.exemstwain32.exe

description	pid	process
Token: SeDebugPrivilege	1708	1cc1b6fc2ec89fe4ec20ddaf4cc59c4f_JaffaCakes118.exe
Token: SeBackupPrivilege	2860	vssvc.exe
Token: SeRestorePrivilege	2860	vssvc.exe
Token: SeAuditPrivilege	2860	vssvc.exe
Token: SeDebugPrivilege	2936	mstwain32.exe
Token: SeDebugPrivilege	2936	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

mstwain32.exe

pid process

2936 mstwain32.exe
2936 mstwain32.exe

pid	process
2936	mstwain32.exe
2936	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

1cc1b6fc2ec89fe4ec20ddaf4cc59c4f_JaffaCakes118.exe

description	pid	process	target process
PID 1708 wrote to memory of 2936	1708	1cc1b6fc2ec89fe4ec20ddaf4cc59c4f_JaffaCakes118.exe	mstwain32.exe
PID 1708 wrote to memory of 2936	1708	1cc1b6fc2ec89fe4ec20ddaf4cc59c4f_JaffaCakes118.exe	mstwain32.exe
PID 1708 wrote to memory of 2936	1708	1cc1b6fc2ec89fe4ec20ddaf4cc59c4f_JaffaCakes118.exe	mstwain32.exe
PID 1708 wrote to memory of 2936	1708	1cc1b6fc2ec89fe4ec20ddaf4cc59c4f_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\1cc1b6fc2ec89fe4ec20ddaf4cc59c4f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1cc1b6fc2ec89fe4ec20ddaf4cc59c4f_JaffaCakes118.exe"
1⤵
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1708

C:\Windows\mstwain32.exe
"C:\Windows\mstwain32.exe"
2⤵
- UAC bypass
- 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:2936

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2860

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads

C:\Windows\mstwain32.exe
Filesize
113KB

MD5
1cc1b6fc2ec89fe4ec20ddaf4cc59c4f

SHA1
70fcf8017e8b529f3c0112c09756ac0b6396398d

SHA256
534a87cd1da6e9bcc0795b99c5f52f436093072fa582f08a3e9869bc9e37e4d3

SHA512
4f9f73b97bb1c33238c485496f991ab33f050596df317283d6c54c6a06ed72b6280a7f23faa9ef8e920691d3cd99a095e2bc51befaad8cc9dc2f80b33787a789

Download Submit
memory/1708-11-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/1708-4-0x00000000005B0000-0x00000000005C0000-memory.dmp

Filesize
64KB

Download
memory/1708-0-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2936-28-0x00000000753C0000-0x00000000754B0000-memory.dmp

Filesize
960KB

Download
memory/2936-29-0x00000000753C0000-0x00000000754B0000-memory.dmp

Filesize
960KB

Download
memory/2936-17-0x0000000002480000-0x000000000248E000-memory.dmp

Filesize
56KB

Download
memory/2936-19-0x00000000753D0000-0x00000000753D1000-memory.dmp

Filesize
4KB

Download
memory/2936-20-0x00000000753C0000-0x00000000754B0000-memory.dmp

Filesize
960KB

Download
memory/2936-21-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2936-22-0x00000000004E0000-0x00000000004E8000-memory.dmp

Filesize
32KB

Download
memory/2936-23-0x0000000002480000-0x000000000248E000-memory.dmp

Filesize
56KB

Download
memory/2936-24-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2936-25-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2936-12-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2936-16-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2936-30-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2936-33-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2936-36-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2936-40-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2936-43-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2936-46-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2936-49-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2936-52-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2936-55-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2936-58-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2936-61-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2936-64-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download