modiloader | 91a4318aa3087fccfe71e96f8f26bf449aa5f11256f11606081a233202085519

General

Target

fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe
Size

698KB
MD5

fea1ea38e2baf6e5e4f2e774d6f1cf3f
SHA1

83640555fa74e77e77b9c4051f547a3bfbb73ffe
SHA256

91a4318aa3087fccfe71e96f8f26bf449aa5f11256f11606081a233202085519
SHA512

1125dd7551686955562c4a94582de8a868720c16b40d32bce472c7dbab2edc163fb47f2a9ac0fbf13719b6c5cafac672884f61de4b7684a5560e709be1c29be2
SSDEEP

12288:JHLUMuiv9RgfSjAzRty+C5LsZUMrzS23NcoDa+D6kS5h:xtARK52UMrW0uu/I5h

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
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 22 IoCs

resource	yara_rule
behavioral2/memory/4036-1-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4036-2-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4036-3-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4036-4-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/4036-19-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/856-24-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/856-27-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/856-39-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/856-40-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/856-43-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/856-46-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/856-49-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/856-52-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/856-55-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/856-58-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/856-61-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/856-64-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/856-67-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/856-70-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/856-73-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/856-76-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2
behavioral2/memory/856-79-0x0000000000400000-0x000000000044B000-memory.dmp	modiloader_stage2

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1664	mstwain32.exe
856	mstwain32.exe

Loads dropped DLL 4 IoCs

pid	Process
856	mstwain32.exe
856	mstwain32.exe
856	mstwain32.exe
856	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-1-5-21-4089630652-1596403869-279772308-1000\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	fea1ea38e2baf6e5e4f2e774d6f1cf3f_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

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/3124-6-0x0000000000400000-0x00000000004FB000-memory.dmp	autoit_exe
behavioral2/memory/1664-26-0x0000000000400000-0x00000000004FB000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3124 set thread context of 4036	3124	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe	82
PID 1664 set thread context of 856	1664	mstwain32.exe	87

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3124-0-0x0000000000400000-0x00000000004FB000-memory.dmp	upx
behavioral2/memory/3124-6-0x0000000000400000-0x00000000004FB000-memory.dmp	upx
behavioral2/files/0x000400000001db4f-11.dat	upx
behavioral2/memory/1664-26-0x0000000000400000-0x00000000004FB000-memory.dmp	upx

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\mstwain32.exe	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe
File created	C:\Windows\cmsetac.dll	mstwain32.exe
File created	C:\Windows\mstwain32.exe	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.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 4 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	mstwain32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4036	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe
Token: SeBackupPrivilege	2692	vssvc.exe
Token: SeRestorePrivilege	2692	vssvc.exe
Token: SeAuditPrivilege	2692	vssvc.exe
Token: SeDebugPrivilege	856	mstwain32.exe
Token: SeDebugPrivilege	856	mstwain32.exe

Suspicious use of FindShellTrayWindow 6 IoCs

pid	Process
3124	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe
3124	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe
3124	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe
1664	mstwain32.exe
1664	mstwain32.exe
1664	mstwain32.exe

Suspicious use of SendNotifyMessage 6 IoCs

pid	Process
3124	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe
3124	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe
3124	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe
1664	mstwain32.exe
1664	mstwain32.exe
1664	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
856	mstwain32.exe
856	mstwain32.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 3124 wrote to memory of 4036	3124	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe	82
PID 3124 wrote to memory of 4036	3124	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe	82
PID 3124 wrote to memory of 4036	3124	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe	82
PID 3124 wrote to memory of 4036	3124	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe	82
PID 3124 wrote to memory of 4036	3124	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe	82
PID 3124 wrote to memory of 4036	3124	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe	82
PID 3124 wrote to memory of 4036	3124	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe	82
PID 3124 wrote to memory of 4036	3124	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe	82
PID 3124 wrote to memory of 4036	3124	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe	82
PID 3124 wrote to memory of 4036	3124	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe	82
PID 4036 wrote to memory of 1664	4036	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe	86
PID 4036 wrote to memory of 1664	4036	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe	86
PID 4036 wrote to memory of 1664	4036	fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe	86
PID 1664 wrote to memory of 856	1664	mstwain32.exe	87
PID 1664 wrote to memory of 856	1664	mstwain32.exe	87
PID 1664 wrote to memory of 856	1664	mstwain32.exe	87
PID 1664 wrote to memory of 856	1664	mstwain32.exe	87
PID 1664 wrote to memory of 856	1664	mstwain32.exe	87
PID 1664 wrote to memory of 856	1664	mstwain32.exe	87
PID 1664 wrote to memory of 856	1664	mstwain32.exe	87
PID 1664 wrote to memory of 856	1664	mstwain32.exe	87
PID 1664 wrote to memory of 856	1664	mstwain32.exe	87
PID 1664 wrote to memory of 856	1664	mstwain32.exe	87

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\fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3124
- C:\Users\Admin\AppData\Local\Temp\fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\fea1ea38e2baf6e5e4f2e774d6f1cf3f_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - 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:4036
- - C:\Windows\mstwain32.exe
    "C:\Windows\mstwain32.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    - Suspicious use of WriteProcessMemory
    PID:1664
  - - C:\Windows\mstwain32.exe
      "C:\Windows\mstwain32.exe"
      4⤵
      UAC bypass
      Executes dropped EXE
      Loads dropped DLL
      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:856

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2692

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

Query Registry

1

T1012

System Information Discovery

3

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\cmsetac.dll

Filesize
33KB

MD5
7c3ff4d4d394fde7c693d04c488a55f8

SHA1
ae2b2acc7e91a910f9075e0e095b528e97827ba4

SHA256
4878bf71fd37ffac1fd6f5153357298544d0ef1f3a114c1f0451befcb85c59a8

SHA512
33c601d9e706cff0c3dce8280b040c361aa51004fd20b51946469b6a02453def5a7aad1e5f58bec3435cc6e25470155d07f71dc0f81ec642efc53215d7be316a

Download Submit
C:\Windows\mstwain32.exe

Filesize
698KB

MD5
fea1ea38e2baf6e5e4f2e774d6f1cf3f

SHA1
83640555fa74e77e77b9c4051f547a3bfbb73ffe

SHA256
91a4318aa3087fccfe71e96f8f26bf449aa5f11256f11606081a233202085519

SHA512
1125dd7551686955562c4a94582de8a868720c16b40d32bce472c7dbab2edc163fb47f2a9ac0fbf13719b6c5cafac672884f61de4b7684a5560e709be1c29be2

Download Submit
C:\Windows\ntdtcstp.dll

Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
memory/856-52-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/856-55-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/856-79-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/856-76-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/856-73-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/856-24-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/856-70-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/856-67-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/856-27-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/856-64-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/856-37-0x00000000033D0000-0x00000000033DE000-memory.dmp

Filesize
56KB

Download
memory/856-39-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/856-40-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/856-41-0x0000000000A40000-0x0000000000A48000-memory.dmp

Filesize
32KB

Download
memory/856-42-0x00000000033D0000-0x00000000033DE000-memory.dmp

Filesize
56KB

Download
memory/856-43-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/856-46-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/856-49-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/856-61-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/856-58-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/1664-26-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download
memory/3124-0-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download
memory/3124-6-0x0000000000400000-0x00000000004FB000-memory.dmp

Filesize
1004KB

Download
memory/4036-4-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4036-1-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4036-2-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4036-19-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4036-3-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads