modiloader | f97962a8689c8da2ab0ea021878216f35680d3f0c68805f9380240db460cd35e

General

Target

JaffaCakes118_6b58d6f808cd5c741d1c34a436db4cf2.exe
Size

314KB
MD5

6b58d6f808cd5c741d1c34a436db4cf2
SHA1

3c85764216155521bc7373efc5167763b661d34c
SHA256

f97962a8689c8da2ab0ea021878216f35680d3f0c68805f9380240db460cd35e
SHA512

f79a5b071d96460e8b17a895cc11ce798cd366ccbc0061a3973c885d9c3b5f6a74e7ff227cd92412ed0c26b90215aaffb861b82f573828b303b3b04dcedfb49b
SSDEEP

6144:0G377xS2Vp2CeiorXhwTBN53CrpcCJJvHrsoS:Pr7xS2Vp6FwT0bJJvHIoS

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 6 IoCs

resource	yara_rule
behavioral1/memory/2380-0-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral1/memory/2380-1-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral1/memory/2380-11-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral1/files/0x00060000000055d7-10.dat	modiloader_stage2
behavioral1/memory/1096-21-0x0000000076FD0000-0x00000000770C0000-memory.dmp	modiloader_stage2
behavioral1/memory/1096-22-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2

Deletes itself 1 IoCs

pid	Process
1096	mstwain32.exe

Executes dropped EXE 1 IoCs

pid	Process
1096	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-1-5-21-3692679935-4019334568-335155002-1000\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	mstwain32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	mstwain32.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	JaffaCakes118_6b58d6f808cd5c741d1c34a436db4cf2.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2380-0-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/2380-1-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/memory/2380-11-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral1/files/0x00060000000055d7-10.dat	upx
behavioral1/memory/1096-22-0x0000000000400000-0x0000000000450000-memory.dmp	upx

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\mstwain32.exe	JaffaCakes118_6b58d6f808cd5c741d1c34a436db4cf2.exe
File opened for modification	C:\Windows\mstwain32.exe	JaffaCakes118_6b58d6f808cd5c741d1c34a436db4cf2.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_6b58d6f808cd5c741d1c34a436db4cf2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2380	JaffaCakes118_6b58d6f808cd5c741d1c34a436db4cf2.exe
Token: SeBackupPrivilege	2852	vssvc.exe
Token: SeRestorePrivilege	2852	vssvc.exe
Token: SeAuditPrivilege	2852	vssvc.exe
Token: SeDebugPrivilege	1096	mstwain32.exe
Token: SeDebugPrivilege	1096	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1096	mstwain32.exe
1096	mstwain32.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 1096	2380	JaffaCakes118_6b58d6f808cd5c741d1c34a436db4cf2.exe	32
PID 2380 wrote to memory of 1096	2380	JaffaCakes118_6b58d6f808cd5c741d1c34a436db4cf2.exe	32
PID 2380 wrote to memory of 1096	2380	JaffaCakes118_6b58d6f808cd5c741d1c34a436db4cf2.exe	32
PID 2380 wrote to memory of 1096	2380	JaffaCakes118_6b58d6f808cd5c741d1c34a436db4cf2.exe	32

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_6b58d6f808cd5c741d1c34a436db4cf2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b58d6f808cd5c741d1c34a436db4cf2.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:2380
- C:\Windows\mstwain32.exe
  "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6b58d6f808cd5c741d1c34a436db4cf2.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
  - Suspicious use of SetWindowsHookEx
  - System policy modification
  PID:1096

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2852

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
314KB

MD5
6b58d6f808cd5c741d1c34a436db4cf2

SHA1
3c85764216155521bc7373efc5167763b661d34c

SHA256
f97962a8689c8da2ab0ea021878216f35680d3f0c68805f9380240db460cd35e

SHA512
f79a5b071d96460e8b17a895cc11ce798cd366ccbc0061a3973c885d9c3b5f6a74e7ff227cd92412ed0c26b90215aaffb861b82f573828b303b3b04dcedfb49b

Download Submit
memory/1096-20-0x0000000076FD0000-0x00000000770C0000-memory.dmp

Filesize
960KB

Download
memory/1096-22-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1096-25-0x0000000002590000-0x000000000259E000-memory.dmp

Filesize
56KB

Download
memory/1096-24-0x00000000003F0000-0x00000000003F8000-memory.dmp

Filesize
32KB

Download
memory/1096-23-0x0000000076FD0000-0x00000000770C0000-memory.dmp

Filesize
960KB

Download
memory/1096-16-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/1096-17-0x0000000002590000-0x000000000259E000-memory.dmp

Filesize
56KB

Download
memory/1096-19-0x0000000076FE0000-0x0000000076FE1000-memory.dmp

Filesize
4KB

Download
memory/1096-21-0x0000000076FD0000-0x00000000770C0000-memory.dmp

Filesize
960KB

Download
memory/2380-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2380-5-0x0000000002990000-0x00000000029A0000-memory.dmp

Filesize
64KB

Download
memory/2380-1-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2380-11-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2380-12-0x0000000002990000-0x000000000299D000-memory.dmp

Filesize
52KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads