modiloader | 57c54fb9836639a64b6f6282ac71bfb5e19b7644bd40a57c28604c7048e78993

General

Target

JaffaCakes118_6a926a8bbdc726464b1d01e5856def32.exe
Size

270KB
MD5

6a926a8bbdc726464b1d01e5856def32
SHA1

4a93bc99db9d978098219e7dbf69480e37158d53
SHA256

57c54fb9836639a64b6f6282ac71bfb5e19b7644bd40a57c28604c7048e78993
SHA512

3c16dbdb00ff6fef4eaebc42c93962ae076d3766d64a49cbd6d643f2d7f7612758f22198f8f38f8dfe93593cfd88139eab5b0f5e2fb405dff43e67ba065ec327
SSDEEP

3072:XGvo6giwpW9DGD2VdKvY/gIg/CtTIuOmxkiozXgeXdHwTBf4Wgczc+0iesvvFmoD:XG377xS2Vp2CeiorXdwTBgWx4s3f

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/0x00060000000055de-6.dat	modiloader_stage2
behavioral1/memory/2844-7-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/812-12-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/812-14-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/812-16-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/812-18-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/812-20-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/812-23-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/812-25-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/812-27-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/812-29-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/812-31-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/812-33-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/812-35-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/812-37-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral1/memory/812-39-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2

Deletes itself 1 IoCs

pid	Process
812	mstwain32.exe

Executes dropped EXE 1 IoCs

pid	Process
812	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-1-5-21-2039016743-699959520-214465309-1000\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_6a926a8bbdc726464b1d01e5856def32.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 3 IoCs

description	ioc	Process
File created	C:\Windows\mstwain32.exe	JaffaCakes118_6a926a8bbdc726464b1d01e5856def32.exe
File opened for modification	C:\Windows\mstwain32.exe	JaffaCakes118_6a926a8bbdc726464b1d01e5856def32.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

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_6a926a8bbdc726464b1d01e5856def32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2844	JaffaCakes118_6a926a8bbdc726464b1d01e5856def32.exe
Token: SeBackupPrivilege	3016	vssvc.exe
Token: SeRestorePrivilege	3016	vssvc.exe
Token: SeAuditPrivilege	3016	vssvc.exe
Token: SeDebugPrivilege	812	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2844 wrote to memory of 812	2844	JaffaCakes118_6a926a8bbdc726464b1d01e5856def32.exe	33
PID 2844 wrote to memory of 812	2844	JaffaCakes118_6a926a8bbdc726464b1d01e5856def32.exe	33
PID 2844 wrote to memory of 812	2844	JaffaCakes118_6a926a8bbdc726464b1d01e5856def32.exe	33
PID 2844 wrote to memory of 812	2844	JaffaCakes118_6a926a8bbdc726464b1d01e5856def32.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\JaffaCakes118_6a926a8bbdc726464b1d01e5856def32.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6a926a8bbdc726464b1d01e5856def32.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:2844
- C:\Windows\mstwain32.exe
  "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6a926a8bbdc726464b1d01e5856def32.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
  - System policy modification
  PID:812

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3016

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
6a926a8bbdc726464b1d01e5856def32

SHA1
4a93bc99db9d978098219e7dbf69480e37158d53

SHA256
57c54fb9836639a64b6f6282ac71bfb5e19b7644bd40a57c28604c7048e78993

SHA512
3c16dbdb00ff6fef4eaebc42c93962ae076d3766d64a49cbd6d643f2d7f7612758f22198f8f38f8dfe93593cfd88139eab5b0f5e2fb405dff43e67ba065ec327

Download Submit
memory/812-18-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/812-11-0x00000000006E0000-0x00000000006E1000-memory.dmp

Filesize
4KB

Download
memory/812-23-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/812-25-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/812-13-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/812-14-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/812-16-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/812-20-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/812-39-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/812-10-0x0000000000360000-0x0000000000361000-memory.dmp

Filesize
4KB

Download
memory/812-12-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/812-27-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/812-29-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/812-31-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/812-33-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/812-35-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/812-37-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2844-7-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads