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 4 IoCs

resource	yara_rule
behavioral2/memory/4924-0-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/files/0x0009000000023c60-5.dat	modiloader_stage2
behavioral2/memory/4924-11-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/1232-27-0x0000000000400000-0x0000000000450000-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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	JaffaCakes118_6b58d6f808cd5c741d1c34a436db4cf2.exe

Deletes itself 1 IoCs

pid	Process
1232	mstwain32.exe

Executes dropped EXE 1 IoCs

pid	Process
1232	mstwain32.exe

Loads dropped DLL 4 IoCs

pid	Process
1232	mstwain32.exe
1232	mstwain32.exe
1232	mstwain32.exe
1232	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-1-5-21-2045521122-590294423-3465680274-1000\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	JaffaCakes118_6b58d6f808cd5c741d1c34a436db4cf2.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/4924-0-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/files/0x0009000000023c60-5.dat	upx
behavioral2/memory/4924-11-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/1232-27-0x0000000000400000-0x0000000000450000-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	4924	JaffaCakes118_6b58d6f808cd5c741d1c34a436db4cf2.exe
Token: SeBackupPrivilege	4588	vssvc.exe
Token: SeRestorePrivilege	4588	vssvc.exe
Token: SeAuditPrivilege	4588	vssvc.exe
Token: SeDebugPrivilege	1232	mstwain32.exe
Token: SeDebugPrivilege	1232	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1232	mstwain32.exe
1232	mstwain32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4924 wrote to memory of 1232	4924	JaffaCakes118_6b58d6f808cd5c741d1c34a436db4cf2.exe	88
PID 4924 wrote to memory of 1232	4924	JaffaCakes118_6b58d6f808cd5c741d1c34a436db4cf2.exe	88
PID 4924 wrote to memory of 1232	4924	JaffaCakes118_6b58d6f808cd5c741d1c34a436db4cf2.exe	88

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 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:4924
- 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
  - 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:1232

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4588

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
4f8f2bc2171ca471daaeef6d765a6590

SHA1
f86b592b9f89b9fc8a440f16865f08236e7dd5a1

SHA256
67b41df3c057f687448c9ecee48fdaff7b1564a5a8edaa8ee306e95ed53aa2e9

SHA512
87dff592e71381502745764b83e8ed367ae34ce8fd021a16c5b15de6eae78ca34619dab8a87a64706f7558c705a170cd71babfbc2253c920c88deeda1e98208c

Download Submit
C:\Windows\mstwain32.exe

Filesize
314KB

MD5
6b58d6f808cd5c741d1c34a436db4cf2

SHA1
3c85764216155521bc7373efc5167763b661d34c

SHA256
f97962a8689c8da2ab0ea021878216f35680d3f0c68805f9380240db460cd35e

SHA512
f79a5b071d96460e8b17a895cc11ce798cd366ccbc0061a3973c885d9c3b5f6a74e7ff227cd92412ed0c26b90215aaffb861b82f573828b303b3b04dcedfb49b

Download Submit
C:\Windows\ntdtcstp.dll

Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
memory/1232-19-0x00000000020D0000-0x00000000020D1000-memory.dmp

Filesize
4KB

Download
memory/1232-23-0x0000000003220000-0x000000000322E000-memory.dmp

Filesize
56KB

Download
memory/1232-26-0x00000000030D0000-0x00000000030D1000-memory.dmp

Filesize
4KB

Download
memory/1232-27-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1232-28-0x0000000002120000-0x0000000002128000-memory.dmp

Filesize
32KB

Download
memory/1232-29-0x0000000003220000-0x000000000322E000-memory.dmp

Filesize
56KB

Download
memory/4924-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4924-10-0x00000000005D0000-0x00000000005D1000-memory.dmp

Filesize
4KB

Download
memory/4924-11-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads