modiloader | e4919537743b021c31d9e04564f4a0ab013eb9f9405d2dfca01a12e0ec96e2be

General

Target

ee6127fe03905c2677e61486dfa3f8ba_JaffaCakes118.exe
Size

312KB
MD5

ee6127fe03905c2677e61486dfa3f8ba
SHA1

0bbad06d391248dca40d25b1139e1d3622215f19
SHA256

e4919537743b021c31d9e04564f4a0ab013eb9f9405d2dfca01a12e0ec96e2be
SHA512

90d82dd55018c133388ddf6db2c95764bd5ab7fde248eac8ea204154ba7ba0398718a37ebf1f380c2e317aab101e06fe5b70390e4e11c1cf0ad236dff200e62a
SSDEEP

6144:DGyjnBSkuV1d4eZd88ORJIf/wTBt53QpcJMoS:yYnBSkuVUeZdYqwTmRoS

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/3756-0-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/files/0x000c000000023b35-6.dat	modiloader_stage2
behavioral2/memory/3756-12-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/1812-28-0x0000000000400000-0x0000000000450000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	ee6127fe03905c2677e61486dfa3f8ba_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
1812	mstwain32.exe

Executes dropped EXE 1 IoCs

pid	Process
1812	mstwain32.exe

Loads dropped DLL 4 IoCs

pid	Process
1812	mstwain32.exe
1812	mstwain32.exe
1812	mstwain32.exe
1812	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-1-5-21-1045960512-3948844814-3059691613-1000\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	ee6127fe03905c2677e61486dfa3f8ba_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/3756-0-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/files/0x000c000000023b35-6.dat	upx
behavioral2/memory/3756-12-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/1812-28-0x0000000000400000-0x0000000000450000-memory.dmp	upx

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\mstwain32.exe	ee6127fe03905c2677e61486dfa3f8ba_JaffaCakes118.exe
File opened for modification	C:\Windows\mstwain32.exe	ee6127fe03905c2677e61486dfa3f8ba_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	ee6127fe03905c2677e61486dfa3f8ba_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3756	ee6127fe03905c2677e61486dfa3f8ba_JaffaCakes118.exe
Token: SeBackupPrivilege	2448	vssvc.exe
Token: SeRestorePrivilege	2448	vssvc.exe
Token: SeAuditPrivilege	2448	vssvc.exe
Token: SeDebugPrivilege	1812	mstwain32.exe
Token: SeDebugPrivilege	1812	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1812	mstwain32.exe
1812	mstwain32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3756 wrote to memory of 1812	3756	ee6127fe03905c2677e61486dfa3f8ba_JaffaCakes118.exe	86
PID 3756 wrote to memory of 1812	3756	ee6127fe03905c2677e61486dfa3f8ba_JaffaCakes118.exe	86
PID 3756 wrote to memory of 1812	3756	ee6127fe03905c2677e61486dfa3f8ba_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\ee6127fe03905c2677e61486dfa3f8ba_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ee6127fe03905c2677e61486dfa3f8ba_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:3756
- C:\Windows\mstwain32.exe
  "C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\ee6127fe03905c2677e61486dfa3f8ba_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:1812

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2448

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
62a44b5482e2d0432375f9676f177abb

SHA1
c18c72292f28245ef8be41222958bb75dcbf509f

SHA256
d93c93a1aee92dc0ffc64282fd873a0d7724c6f1ed7dbbe4ce32c77e6cf41c39

SHA512
3d272db40df4063e61f0d97e825754fae78d6d688dbc2b945959affcf19001e427d8b4c410a7b88bf907b1ea85ff6292387baa4bba4b6d9af8e5c4ebf31857d6

Download Submit
C:\Windows\mstwain32.exe

Filesize
312KB

MD5
ee6127fe03905c2677e61486dfa3f8ba

SHA1
0bbad06d391248dca40d25b1139e1d3622215f19

SHA256
e4919537743b021c31d9e04564f4a0ab013eb9f9405d2dfca01a12e0ec96e2be

SHA512
90d82dd55018c133388ddf6db2c95764bd5ab7fde248eac8ea204154ba7ba0398718a37ebf1f380c2e317aab101e06fe5b70390e4e11c1cf0ad236dff200e62a

Download Submit
C:\Windows\ntdtcstp.dll

Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
memory/1812-20-0x00000000004E0000-0x00000000004E1000-memory.dmp

Filesize
4KB

Download
memory/1812-24-0x00000000030E0000-0x00000000030EE000-memory.dmp

Filesize
56KB

Download
memory/1812-27-0x0000000002F90000-0x0000000002F91000-memory.dmp

Filesize
4KB

Download
memory/1812-28-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1812-29-0x00000000004F0000-0x00000000004F8000-memory.dmp

Filesize
32KB

Download
memory/1812-30-0x00000000030E0000-0x00000000030EE000-memory.dmp

Filesize
56KB

Download
memory/3756-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3756-1-0x0000000000560000-0x0000000000561000-memory.dmp

Filesize
4KB

Download
memory/3756-12-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads