modiloader | ae28321888cc6214ceb5bbeb42ed2d37a38e3f2316f25076506b70fc9fd1a59f

General

Target

JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe
Size

256KB
MD5

03b9671be7d36d355c365e01b91c4ec6
SHA1

7b3a1acdee78ab20271757218166319b13def4f4
SHA256

ae28321888cc6214ceb5bbeb42ed2d37a38e3f2316f25076506b70fc9fd1a59f
SHA512

eba21e8975c3d9ee45221e8ed309ab29ce88872ad664026db8e01888b92954471f9594f0d552e9e632bf54a5afd02b763961d47e70ddf0e0660099af531fba52
SSDEEP

3072:r2Ut9IeAwf0RMEIVTpfEIEdaVo8TcWky4w6Y6J69fa8ew5vG8cXJ4OSqAy2IYjYl:r7tfqixJaQ37XqlTL4mLHZBWpnCUbQf

Score

10^/10

modiloader defense_evasion discovery 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

defense_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 24 IoCs

resource	yara_rule
behavioral2/memory/1552-6-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/1552-5-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/1552-18-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-28-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-29-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-30-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-37-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-43-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-44-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-45-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-48-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-49-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-52-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-55-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-58-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-61-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-64-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-67-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-70-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-73-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-76-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-79-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-82-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4416-85-0x0000000000400000-0x0000000000450000-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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe

Executes dropped EXE 2 IoCs

pid	Process
4852	mstwain32.exe
4416	mstwain32.exe

Loads dropped DLL 4 IoCs

pid	Process
4416	mstwain32.exe
4416	mstwain32.exe
4416	mstwain32.exe
4416	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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe"	mstwain32.exe

Checks whether UAC is enabled 1 TTPs 3 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 668 set thread context of 1552	668	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe	83
PID 4852 set thread context of 4416	4852	mstwain32.exe	88

UPX packed file 27 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1552-2-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/1552-4-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/1552-6-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/1552-5-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/1552-18-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-27-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-28-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-29-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-30-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-37-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-43-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-44-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-45-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-48-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-49-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-52-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-55-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-58-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-61-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-64-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-67-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-70-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-73-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-76-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-79-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-82-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4416-85-0x0000000000400000-0x0000000000450000-memory.dmp	upx

Drops file in Windows directory 5 IoCs

description	ioc	Process
File created	C:\Windows\mstwain32.exe	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe
File opened for modification	C:\Windows\mstwain32.exe	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe
File opened for modification	C:\Windows\mstwain32.exe	mstwain32.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 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	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstwain32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1552	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe
Token: SeBackupPrivilege	4496	vssvc.exe
Token: SeRestorePrivilege	4496	vssvc.exe
Token: SeAuditPrivilege	4496	vssvc.exe
Token: SeDebugPrivilege	4416	mstwain32.exe
Token: SeDebugPrivilege	4416	mstwain32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
668	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe
4852	mstwain32.exe
4416	mstwain32.exe
4416	mstwain32.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 668 wrote to memory of 1552	668	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe	83
PID 668 wrote to memory of 1552	668	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe	83
PID 668 wrote to memory of 1552	668	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe	83
PID 668 wrote to memory of 1552	668	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe	83
PID 668 wrote to memory of 1552	668	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe	83
PID 668 wrote to memory of 1552	668	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe	83
PID 668 wrote to memory of 1552	668	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe	83
PID 668 wrote to memory of 1552	668	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe	83
PID 1552 wrote to memory of 4852	1552	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe	87
PID 1552 wrote to memory of 4852	1552	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe	87
PID 1552 wrote to memory of 4852	1552	JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe	87
PID 4852 wrote to memory of 4416	4852	mstwain32.exe	88
PID 4852 wrote to memory of 4416	4852	mstwain32.exe	88
PID 4852 wrote to memory of 4416	4852	mstwain32.exe	88
PID 4852 wrote to memory of 4416	4852	mstwain32.exe	88
PID 4852 wrote to memory of 4416	4852	mstwain32.exe	88
PID 4852 wrote to memory of 4416	4852	mstwain32.exe	88
PID 4852 wrote to memory of 4416	4852	mstwain32.exe	88
PID 4852 wrote to memory of 4416	4852	mstwain32.exe	88

System policy modification 1 TTPs 1 IoCs

defense_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_03b9671be7d36d355c365e01b91c4ec6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:668
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.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:1552
- - C:\Windows\mstwain32.exe
    "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4852
  - - C:\Windows\mstwain32.exe
      \melt "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_03b9671be7d36d355c365e01b91c4ec6.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:4416

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4496

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
d2b20db3f5352befbf6d2a38f3dd8d5c

SHA1
25cdc577ac81bca03def5b34916d4ffd81444604

SHA256
ef61b13e879b9ddacff5a073a53640b485951931fc68c6399fa6ffacaa91c5f6

SHA512
474a35c11a80f6bfb3718a520b89f8d747f4ac1e0ca9bda66c34a0692e08d8e0d4841c1931035faa4ccebc14fa26dac660331278d4a0696b59d8704092771435

Download Submit
C:\Windows\mstwain32.exe

Filesize
256KB

MD5
03b9671be7d36d355c365e01b91c4ec6

SHA1
7b3a1acdee78ab20271757218166319b13def4f4

SHA256
ae28321888cc6214ceb5bbeb42ed2d37a38e3f2316f25076506b70fc9fd1a59f

SHA512
eba21e8975c3d9ee45221e8ed309ab29ce88872ad664026db8e01888b92954471f9594f0d552e9e632bf54a5afd02b763961d47e70ddf0e0660099af531fba52

Download Submit
C:\Windows\ntdtcstp.dll

Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
memory/1552-4-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1552-6-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1552-5-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1552-18-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1552-2-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-45-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-52-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-29-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-37-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-28-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-41-0x00000000030E0000-0x00000000030EE000-memory.dmp

Filesize
56KB

Download
memory/4416-43-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-44-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-27-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-48-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-47-0x00000000030E0000-0x00000000030EE000-memory.dmp

Filesize
56KB

Download
memory/4416-46-0x0000000002120000-0x0000000002128000-memory.dmp

Filesize
32KB

Download
memory/4416-49-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-30-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-55-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-58-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-61-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-64-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-67-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-70-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-73-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-76-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-79-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-82-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4416-85-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads