modiloader | aa424ae8cd3dd06d9c8f4136b058c750fe9c2cf0f093a1d410f057351b48a0a5

General

Target

eb4ad38d81b52824f4f94e998577f8ab_JaffaCakes118.exe
Size

311KB
MD5

eb4ad38d81b52824f4f94e998577f8ab
SHA1

2a83b93cf6f2871862684b40250ed9702561a566
SHA256

aa424ae8cd3dd06d9c8f4136b058c750fe9c2cf0f093a1d410f057351b48a0a5
SHA512

ab1e661fd12b774bfe51b51f52bd145a1be4d0f1ae12cb6128a8fdc2ffef742d5577d3bebe0bc0d0e7c920c5e29df90b058c3332757ab746bb84e277ec5825b8
SSDEEP

6144:uG377xS2Vp2CeiorXhwTBN538oq5pcCJJvHqaoS:Nr7xS2Vp6FwTu5bJJvHnoS

Score

10^/10

modiloader discovery 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

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

ModiLoader Second Stage 5 IoCs

resource	yara_rule
behavioral1/memory/2300-0-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral1/memory/2996-12-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral1/memory/2300-11-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral1/files/0x00060000000055d8-10.dat	modiloader_stage2
behavioral1/memory/2996-19-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2

Deletes itself 1 IoCs

pid	Process
2996	mstwain32.exe

Executes dropped EXE 1 IoCs

pid	Process
2996	mstwain32.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2300-0-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral1/memory/2996-12-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral1/memory/2300-11-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral1/files/0x00060000000055d8-10.dat	upx
behavioral1/memory/2996-19-0x0000000000400000-0x000000000044F000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	eb4ad38d81b52824f4f94e998577f8ab_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

description	ioc	Process
File created	C:\Windows\mstwain32.exe	eb4ad38d81b52824f4f94e998577f8ab_JaffaCakes118.exe
File opened for modification	C:\Windows\mstwain32.exe	eb4ad38d81b52824f4f94e998577f8ab_JaffaCakes118.exe
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe
File created	C:\Windows\cmsetac.dll	mstwain32.exe

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	eb4ad38d81b52824f4f94e998577f8ab_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2300	eb4ad38d81b52824f4f94e998577f8ab_JaffaCakes118.exe
Token: SeBackupPrivilege	1672	vssvc.exe
Token: SeRestorePrivilege	1672	vssvc.exe
Token: SeAuditPrivilege	1672	vssvc.exe
Token: SeDebugPrivilege	2996	mstwain32.exe
Token: SeDebugPrivilege	2996	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2996	mstwain32.exe
2996	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 2996	2300	eb4ad38d81b52824f4f94e998577f8ab_JaffaCakes118.exe	33
PID 2300 wrote to memory of 2996	2300	eb4ad38d81b52824f4f94e998577f8ab_JaffaCakes118.exe	33
PID 2300 wrote to memory of 2996	2300	eb4ad38d81b52824f4f94e998577f8ab_JaffaCakes118.exe	33
PID 2300 wrote to memory of 2996	2300	eb4ad38d81b52824f4f94e998577f8ab_JaffaCakes118.exe	33

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

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

C:\Users\Admin\AppData\Local\Temp\eb4ad38d81b52824f4f94e998577f8ab_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\eb4ad38d81b52824f4f94e998577f8ab_JaffaCakes118.exe"
1⤵
- Checks whether UAC is enabled
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Windows\mstwain32.exe
  "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\eb4ad38d81b52824f4f94e998577f8ab_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
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - System policy modification
  PID:2996

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1672

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\mstwain32.exe

Filesize
311KB

MD5
eb4ad38d81b52824f4f94e998577f8ab

SHA1
2a83b93cf6f2871862684b40250ed9702561a566

SHA256
aa424ae8cd3dd06d9c8f4136b058c750fe9c2cf0f093a1d410f057351b48a0a5

SHA512
ab1e661fd12b774bfe51b51f52bd145a1be4d0f1ae12cb6128a8fdc2ffef742d5577d3bebe0bc0d0e7c920c5e29df90b058c3332757ab746bb84e277ec5825b8

Download Submit
memory/2300-0-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2300-1-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2300-5-0x00000000036F0000-0x0000000003700000-memory.dmp

Filesize
64KB

Download
memory/2300-11-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2996-12-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2996-16-0x00000000002B0000-0x00000000002B8000-memory.dmp

Filesize
32KB

Download
memory/2996-17-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/2996-19-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2996-21-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads