modiloader | bfe93ab65f358e8f3afd02c4300bfc270ee89c68051b2a96a5eb3a3a6c8508b6

General

Target

e08fd799cf4b7aec2bf8208b9dfee0de_JaffaCakes118.exe
Size

310KB
MD5

e08fd799cf4b7aec2bf8208b9dfee0de
SHA1

58ab10d5ce9e6ab95122b91baecbc9c98e87a427
SHA256

bfe93ab65f358e8f3afd02c4300bfc270ee89c68051b2a96a5eb3a3a6c8508b6
SHA512

0c916d9255a677c94b7a2bc62bbeccc2ef27c7965f8608149f9e9cf76c9bb532035bcdd0b94508441768cf208dfa7ce2583e7ab2a2675ca4386c3747fcd800d2
SSDEEP

6144:4GyjnBSkuV1d4eZd88ORJIf/wTBt530yqpck3coS:jYnBSkuVUeZdYqwTYdcoS

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/1364-0-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/files/0x00050000000226f8-7.dat	modiloader_stage2
behavioral2/memory/1364-13-0x0000000000400000-0x000000000044F000-memory.dmp	modiloader_stage2
behavioral2/memory/3276-29-0x0000000000400000-0x000000000044F000-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-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation	e08fd799cf4b7aec2bf8208b9dfee0de_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
3276	mstwain32.exe

Executes dropped EXE 1 IoCs

pid	Process
3276	mstwain32.exe

Loads dropped DLL 4 IoCs

pid	Process
3276	mstwain32.exe
3276	mstwain32.exe
3276	mstwain32.exe
3276	mstwain32.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1364-0-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/files/0x00050000000226f8-7.dat	upx
behavioral2/memory/1364-13-0x0000000000400000-0x000000000044F000-memory.dmp	upx
behavioral2/memory/3276-29-0x0000000000400000-0x000000000044F000-memory.dmp	upx

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-1-5-21-656926755-4116854191-210765258-1000\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	e08fd799cf4b7aec2bf8208b9dfee0de_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

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\ntdtcstp.dll	mstwain32.exe
File created	C:\Windows\cmsetac.dll	mstwain32.exe
File created	C:\Windows\mstwain32.exe	e08fd799cf4b7aec2bf8208b9dfee0de_JaffaCakes118.exe
File opened for modification	C:\Windows\mstwain32.exe	e08fd799cf4b7aec2bf8208b9dfee0de_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 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	e08fd799cf4b7aec2bf8208b9dfee0de_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1364	e08fd799cf4b7aec2bf8208b9dfee0de_JaffaCakes118.exe
Token: SeBackupPrivilege	3984	vssvc.exe
Token: SeRestorePrivilege	3984	vssvc.exe
Token: SeAuditPrivilege	3984	vssvc.exe
Token: SeDebugPrivilege	3276	mstwain32.exe
Token: SeDebugPrivilege	3276	mstwain32.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1364	e08fd799cf4b7aec2bf8208b9dfee0de_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3276	mstwain32.exe
3276	mstwain32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1364 wrote to memory of 3276	1364	e08fd799cf4b7aec2bf8208b9dfee0de_JaffaCakes118.exe	93
PID 1364 wrote to memory of 3276	1364	e08fd799cf4b7aec2bf8208b9dfee0de_JaffaCakes118.exe	93
PID 1364 wrote to memory of 3276	1364	e08fd799cf4b7aec2bf8208b9dfee0de_JaffaCakes118.exe	93

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\e08fd799cf4b7aec2bf8208b9dfee0de_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e08fd799cf4b7aec2bf8208b9dfee0de_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 FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1364
- C:\Windows\mstwain32.exe
  "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\e08fd799cf4b7aec2bf8208b9dfee0de_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:3276

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3984

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
32KB

MD5
3fb4121f50e069810e0241b0fe65db57

SHA1
ea7eed26cf62da3ba338b874c0ef303b36305e65

SHA256
fac121b362a858fb62b72dc68cd74196021022aae46f8bceb6edc4b789794545

SHA512
8a03d05d07b25a81447228683387150e044875c9f76feb826db68018ae399cec4ce439f948b9c72fc39efb54d834935fa92c9716492d9b73c7f687e47c4236ec

Download Submit
C:\Windows\mstwain32.exe

Filesize
310KB

MD5
e08fd799cf4b7aec2bf8208b9dfee0de

SHA1
58ab10d5ce9e6ab95122b91baecbc9c98e87a427

SHA256
bfe93ab65f358e8f3afd02c4300bfc270ee89c68051b2a96a5eb3a3a6c8508b6

SHA512
0c916d9255a677c94b7a2bc62bbeccc2ef27c7965f8608149f9e9cf76c9bb532035bcdd0b94508441768cf208dfa7ce2583e7ab2a2675ca4386c3747fcd800d2

Download Submit
C:\Windows\ntdtcstp.dll

Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
memory/1364-0-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/1364-1-0x00000000006E0000-0x00000000006E1000-memory.dmp

Filesize
4KB

Download
memory/1364-13-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3276-21-0x0000000000A60000-0x0000000000A61000-memory.dmp

Filesize
4KB

Download
memory/3276-25-0x0000000002420000-0x000000000242E000-memory.dmp

Filesize
56KB

Download
memory/3276-28-0x0000000002410000-0x0000000002411000-memory.dmp

Filesize
4KB

Download
memory/3276-29-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/3276-30-0x0000000000AB0000-0x0000000000AB8000-memory.dmp

Filesize
32KB

Download
memory/3276-31-0x0000000002420000-0x000000000242E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads