modiloader | 17a9641fcbe8718819a1b7c0d769d8f24747133926f056ef2ab4c3bff704f754

General

Target

JaffaCakes118_d75beb3d5164bcc39ff2a149257902f3.exe
Size

270KB
MD5

d75beb3d5164bcc39ff2a149257902f3
SHA1

3a6a6880f7f01285b8d7bd57ee1bc98e75fbf9cd
SHA256

17a9641fcbe8718819a1b7c0d769d8f24747133926f056ef2ab4c3bff704f754
SHA512

a414cf9c1cc6a19a8ee02d72e4c8be72d2da66ff58177cb9ec2be4f82974df22ffff2d3da870128914458ffdbda027bdd89233190378a627f42a50a9cea6b686
SSDEEP

6144:GGyjnBSkuV1d4eZd88ORJIz8wTB42G3opc:lYnBSkuVUeZdYdwTt

Score

10^/10

modiloader discovery evasion persistence trojan

Malware Config

Signatures

ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader
Modiloader family
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 16 IoCs

resource	yara_rule
behavioral1/files/0x00060000000055cf-6.dat	modiloader_stage2
behavioral1/memory/2944-11-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/108-18-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/108-20-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/108-22-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/108-24-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/108-26-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/108-29-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/108-31-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/108-33-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/108-35-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/108-37-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/108-39-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/108-41-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/108-43-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/108-45-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2

Executes dropped EXE 1 IoCs

pid	Process
108	mstwain32.exe

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-1-5-21-1846800975-3917212583-2893086201-1000\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	JaffaCakes118_d75beb3d5164bcc39ff2a149257902f3.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	JaffaCakes118_d75beb3d5164bcc39ff2a149257902f3.exe
File opened for modification	C:\Windows\mstwain32.exe	JaffaCakes118_d75beb3d5164bcc39ff2a149257902f3.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

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	JaffaCakes118_d75beb3d5164bcc39ff2a149257902f3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2944	JaffaCakes118_d75beb3d5164bcc39ff2a149257902f3.exe
Token: SeBackupPrivilege	2244	vssvc.exe
Token: SeRestorePrivilege	2244	vssvc.exe
Token: SeAuditPrivilege	2244	vssvc.exe
Token: SeDebugPrivilege	108	mstwain32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2944	JaffaCakes118_d75beb3d5164bcc39ff2a149257902f3.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2944 wrote to memory of 108	2944	JaffaCakes118_d75beb3d5164bcc39ff2a149257902f3.exe	34
PID 2944 wrote to memory of 108	2944	JaffaCakes118_d75beb3d5164bcc39ff2a149257902f3.exe	34
PID 2944 wrote to memory of 108	2944	JaffaCakes118_d75beb3d5164bcc39ff2a149257902f3.exe	34
PID 2944 wrote to memory of 108	2944	JaffaCakes118_d75beb3d5164bcc39ff2a149257902f3.exe	34

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\JaffaCakes118_d75beb3d5164bcc39ff2a149257902f3.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_d75beb3d5164bcc39ff2a149257902f3.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 FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2944
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - System policy modification
  PID:108

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2244

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

2

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
270KB

MD5
d75beb3d5164bcc39ff2a149257902f3

SHA1
3a6a6880f7f01285b8d7bd57ee1bc98e75fbf9cd

SHA256
17a9641fcbe8718819a1b7c0d769d8f24747133926f056ef2ab4c3bff704f754

SHA512
a414cf9c1cc6a19a8ee02d72e4c8be72d2da66ff58177cb9ec2be4f82974df22ffff2d3da870128914458ffdbda027bdd89233190378a627f42a50a9cea6b686

Download Submit
memory/108-24-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/108-33-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/108-45-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/108-15-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/108-17-0x00000000003F0000-0x00000000003F1000-memory.dmp

Filesize
4KB

Download
memory/108-18-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/108-19-0x00000000002F0000-0x00000000002F8000-memory.dmp

Filesize
32KB

Download
memory/108-20-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/108-43-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/108-41-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/108-31-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/108-29-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/108-26-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/108-22-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/108-35-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/108-37-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/108-39-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2944-1-0x0000000001FB0000-0x0000000001FB1000-memory.dmp

Filesize
4KB

Download
memory/2944-0-0x00000000001F0000-0x00000000001F1000-memory.dmp

Filesize
4KB

Download
memory/2944-11-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads