modiloader | cbe95a72e8c326113e7e5d8af4c8e31767acf6a13eb9bf58b4529eaa398bc404

General

Target

f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.exe
Size

590KB
MD5

f3e5ff58e0e0e8744ec917e88ba6eed9
SHA1

031f392e2362432bfd1cc4a9d506a35ef1dfeb9c
SHA256

cbe95a72e8c326113e7e5d8af4c8e31767acf6a13eb9bf58b4529eaa398bc404
SHA512

01b6360ba1c699d5d1d4c1d1737581124a4cec0fdf9039e004c2b1b8dbca6d8723c5606300249d04ad6ec44d0a8bd047b7030323a2b704489bd91a2ac4c6bd0c
SSDEEP

12288:U1FIAhwASC2AFCYG9+LbRQ+RhKr5rZnlB15A4wJ2/F:8r2ASCt7vJQ+RhKNJlWd29

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 7 IoCs

resource	yara_rule
behavioral2/memory/220-5-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral2/memory/220-6-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral2/memory/220-17-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral2/memory/2932-24-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral2/memory/2932-25-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral2/memory/2932-26-0x0000000000400000-0x0000000000451000-memory.dmp	modiloader_stage2
behavioral2/memory/2932-39-0x0000000000400000-0x0000000000451000-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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
4088	mstwain32.exe
2932	mstwain32.exe

Loads dropped DLL 4 IoCs

pid	Process
2932	mstwain32.exe
2932	mstwain32.exe
2932	mstwain32.exe
2932	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-1-5-21-3227495264-2217614367-4027411560-1000\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	f3e5ff58e0e0e8744ec917e88ba6eed9_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

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3092 set thread context of 220	3092	f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.exe	82
PID 4088 set thread context of 2932	4088	mstwain32.exe	87

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/220-1-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/220-4-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/220-5-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/220-6-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/220-17-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/2932-22-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/2932-24-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/2932-25-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/2932-26-0x0000000000400000-0x0000000000451000-memory.dmp	upx
behavioral2/memory/2932-39-0x0000000000400000-0x0000000000451000-memory.dmp	upx

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\mstwain32.exe	f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.exe
File opened for modification	C:\Windows\mstwain32.exe	f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.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	f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.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	220	f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.exe
Token: SeBackupPrivilege	336	vssvc.exe
Token: SeRestorePrivilege	336	vssvc.exe
Token: SeAuditPrivilege	336	vssvc.exe
Token: SeDebugPrivilege	2932	mstwain32.exe
Token: SeDebugPrivilege	2932	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2932	mstwain32.exe
2932	mstwain32.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 3092 wrote to memory of 220	3092	f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.exe	82
PID 3092 wrote to memory of 220	3092	f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.exe	82
PID 3092 wrote to memory of 220	3092	f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.exe	82
PID 3092 wrote to memory of 220	3092	f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.exe	82
PID 3092 wrote to memory of 220	3092	f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.exe	82
PID 220 wrote to memory of 4088	220	f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.exe	86
PID 220 wrote to memory of 4088	220	f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.exe	86
PID 220 wrote to memory of 4088	220	f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.exe	86
PID 4088 wrote to memory of 2932	4088	mstwain32.exe	87
PID 4088 wrote to memory of 2932	4088	mstwain32.exe	87
PID 4088 wrote to memory of 2932	4088	mstwain32.exe	87
PID 4088 wrote to memory of 2932	4088	mstwain32.exe	87
PID 4088 wrote to memory of 2932	4088	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\f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3092
- C:\Users\Admin\AppData\Local\Temp\f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.exe
  C:\Users\Admin\AppData\Local\Temp\f3e5ff58e0e0e8744ec917e88ba6eed9_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:220
- - C:\Windows\mstwain32.exe
    "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\f3e5ff58e0e0e8744ec917e88ba6eed9_JaffaCakes118.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4088
  - - 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:2932

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:336

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
a03d77e830fd1450577d31232e455430

SHA1
0f4ae99a4b6a85f0647fbddfa8d07ef0f49a5022

SHA256
d8326cd8174926c737b6fd9986052db7b19251d4726ea20700b1014ed03924fa

SHA512
2a9334572e3f835b63a52afdfb5e9dbf2fb749842118508260df93046fddda7d41ae95ba85fe0066836fd26e32058b81b435d04995516fecb762852a53037420

Download Submit
C:\Windows\mstwain32.exe

Filesize
590KB

MD5
f3e5ff58e0e0e8744ec917e88ba6eed9

SHA1
031f392e2362432bfd1cc4a9d506a35ef1dfeb9c

SHA256
cbe95a72e8c326113e7e5d8af4c8e31767acf6a13eb9bf58b4529eaa398bc404

SHA512
01b6360ba1c699d5d1d4c1d1737581124a4cec0fdf9039e004c2b1b8dbca6d8723c5606300249d04ad6ec44d0a8bd047b7030323a2b704489bd91a2ac4c6bd0c

Download Submit
C:\Windows\ntdtcstp.dll

Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
memory/220-6-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/220-5-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/220-1-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/220-7-0x00000000006E0000-0x00000000006E1000-memory.dmp

Filesize
4KB

Download
memory/220-4-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/220-17-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2932-24-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2932-22-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2932-25-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2932-26-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2932-33-0x0000000000920000-0x0000000000921000-memory.dmp

Filesize
4KB

Download
memory/2932-37-0x0000000003220000-0x000000000322E000-memory.dmp

Filesize
56KB

Download
memory/2932-39-0x0000000000400000-0x0000000000451000-memory.dmp

Filesize
324KB

Download
memory/2932-40-0x0000000002220000-0x0000000002228000-memory.dmp

Filesize
32KB

Download
memory/2932-41-0x0000000003220000-0x000000000322E000-memory.dmp

Filesize
56KB

Download
memory/3092-3-0x0000000010000000-0x0000000010082000-memory.dmp

Filesize
520KB

Download
memory/3092-0-0x00000000009D0000-0x00000000009D1000-memory.dmp

Filesize
4KB

Download
memory/4088-23-0x0000000010000000-0x0000000010082000-memory.dmp

Filesize
520KB

Download
memory/4088-18-0x00000000006A0000-0x00000000006A1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads