modiloader | a79036a5f04e77094fbc7478a7dc0d7ac3ace1e60edc704484673db0b0a56dd7

General

Target

fcc50af35fd36fd3a119ece65c6a5d21_JaffaCakes118.exe
Size

313KB
MD5

fcc50af35fd36fd3a119ece65c6a5d21
SHA1

835ba6fc14a9e1045beec2180035e54e17873eeb
SHA256

a79036a5f04e77094fbc7478a7dc0d7ac3ace1e60edc704484673db0b0a56dd7
SHA512

2d4f46880c9c13b57bdb0e4ab494bece87535b87fd7ea716fc92dc616f8e3d01567679890bb70dc6838d9a4bb937cfcce77d2bba51db35938af44c316c523209
SSDEEP

6144:iG377xS2Vp2CeiorXhwTBN53GpcCJJvHAi9oS:xr7xS2Vp6FwTcbJJvHloS

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

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 4 IoCs

resource	yara_rule
behavioral2/memory/3944-0-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/files/0x000600000001db1f-5.dat	modiloader_stage2
behavioral2/memory/3944-11-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/4492-27-0x0000000000400000-0x0000000000450000-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-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation	fcc50af35fd36fd3a119ece65c6a5d21_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4492	mstwain32.exe

Executes dropped EXE 1 IoCs

pid	Process
4492	mstwain32.exe

Loads dropped DLL 4 IoCs

pid	Process
4492	mstwain32.exe
4492	mstwain32.exe
4492	mstwain32.exe
4492	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-1-5-21-523280732-2327480845-3730041215-1000\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	fcc50af35fd36fd3a119ece65c6a5d21_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

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3944-0-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/files/0x000600000001db1f-5.dat	upx
behavioral2/memory/3944-11-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/4492-27-0x0000000000400000-0x0000000000450000-memory.dmp	upx

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\mstwain32.exe	fcc50af35fd36fd3a119ece65c6a5d21_JaffaCakes118.exe
File opened for modification	C:\Windows\mstwain32.exe	fcc50af35fd36fd3a119ece65c6a5d21_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 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	fcc50af35fd36fd3a119ece65c6a5d21_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3944	fcc50af35fd36fd3a119ece65c6a5d21_JaffaCakes118.exe
Token: SeBackupPrivilege	684	vssvc.exe
Token: SeRestorePrivilege	684	vssvc.exe
Token: SeAuditPrivilege	684	vssvc.exe
Token: SeDebugPrivilege	4492	mstwain32.exe
Token: SeDebugPrivilege	4492	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4492	mstwain32.exe
4492	mstwain32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3944 wrote to memory of 4492	3944	fcc50af35fd36fd3a119ece65c6a5d21_JaffaCakes118.exe	86
PID 3944 wrote to memory of 4492	3944	fcc50af35fd36fd3a119ece65c6a5d21_JaffaCakes118.exe	86
PID 3944 wrote to memory of 4492	3944	fcc50af35fd36fd3a119ece65c6a5d21_JaffaCakes118.exe	86

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\fcc50af35fd36fd3a119ece65c6a5d21_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fcc50af35fd36fd3a119ece65c6a5d21_JaffaCakes118.exe"
1⤵
- 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:3944
- C:\Windows\mstwain32.exe
  "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\fcc50af35fd36fd3a119ece65c6a5d21_JaffaCakes118.exe"
  2⤵
  - UAC bypass
  - Deletes itself
  - 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:4492

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:684

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
d2c5f612fd88aa5902e732241f54b381

SHA1
fae7b92aecd1d0f76e358ab32dbe53878f19b0b7

SHA256
34a438cca34241e09d28700aafd605dcccb81ad671ccc869779c60d5a331aecc

SHA512
ed2e38713dee9fad24395d197d7c5e749e68af07f8c4e78a9033b6075989ae5378795a81272797c9930a855bc974722d11ca41560feb69d9a8c6781c4e040355

Download Submit
C:\Windows\mstwain32.exe

Filesize
313KB

MD5
fcc50af35fd36fd3a119ece65c6a5d21

SHA1
835ba6fc14a9e1045beec2180035e54e17873eeb

SHA256
a79036a5f04e77094fbc7478a7dc0d7ac3ace1e60edc704484673db0b0a56dd7

SHA512
2d4f46880c9c13b57bdb0e4ab494bece87535b87fd7ea716fc92dc616f8e3d01567679890bb70dc6838d9a4bb937cfcce77d2bba51db35938af44c316c523209

Download Submit
C:\Windows\ntdtcstp.dll

Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
memory/3944-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3944-9-0x0000000000710000-0x0000000000711000-memory.dmp

Filesize
4KB

Download
memory/3944-11-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4492-19-0x0000000000910000-0x0000000000911000-memory.dmp

Filesize
4KB

Download
memory/4492-23-0x0000000003210000-0x000000000321E000-memory.dmp

Filesize
56KB

Download
memory/4492-26-0x00000000030C0000-0x00000000030C1000-memory.dmp

Filesize
4KB

Download
memory/4492-27-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4492-28-0x0000000000920000-0x0000000000928000-memory.dmp

Filesize
32KB

Download
memory/4492-29-0x0000000003210000-0x000000000321E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads