modiloader | abcef57a97b2a19a9f8df603bbfccc1e8557202b8d48b2b9216eb415e6b30928

General

Target

ec5d2979948319843d3848615048d215_JaffaCakes118.exe
Size

312KB
MD5

ec5d2979948319843d3848615048d215
SHA1

514b6ce9da6c6c190bdfa9d55246c33b06e8625c
SHA256

abcef57a97b2a19a9f8df603bbfccc1e8557202b8d48b2b9216eb415e6b30928
SHA512

0a38a71fca118d4e8a1b2517e1389c9c114732d3c9176a025ddcc75484fac4f879d815b30fa9f784f6425751deba30c4e86425518f5d45b9ef75901fe7af1df2
SSDEEP

6144:EG377xS2Vp2CeiorXhwTBN536pcCJJvHPBoS:/r7xS2Vp6FwTUbJJvHZoS

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/2156-0-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/files/0x000500000001db65-5.dat	modiloader_stage2
behavioral2/memory/2156-11-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/3724-27-0x0000000000400000-0x0000000000450000-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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	ec5d2979948319843d3848615048d215_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
3724	mstwain32.exe

Loads dropped DLL 4 IoCs

pid	Process
3724	mstwain32.exe
3724	mstwain32.exe
3724	mstwain32.exe
3724	mstwain32.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2156-0-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/files/0x000500000001db65-5.dat	upx
behavioral2/memory/2156-11-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/3724-27-0x0000000000400000-0x0000000000450000-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-1-5-21-1194130065-3471212556-1656947724-1000\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	ec5d2979948319843d3848615048d215_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\mstwain32.exe	ec5d2979948319843d3848615048d215_JaffaCakes118.exe
File opened for modification	C:\Windows\mstwain32.exe	ec5d2979948319843d3848615048d215_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	ec5d2979948319843d3848615048d215_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2156	ec5d2979948319843d3848615048d215_JaffaCakes118.exe
Token: SeBackupPrivilege	3744	vssvc.exe
Token: SeRestorePrivilege	3744	vssvc.exe
Token: SeAuditPrivilege	3744	vssvc.exe
Token: SeDebugPrivilege	3724	mstwain32.exe
Token: SeDebugPrivilege	3724	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3724	mstwain32.exe
3724	mstwain32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 3724	2156	ec5d2979948319843d3848615048d215_JaffaCakes118.exe	85
PID 2156 wrote to memory of 3724	2156	ec5d2979948319843d3848615048d215_JaffaCakes118.exe	85
PID 2156 wrote to memory of 3724	2156	ec5d2979948319843d3848615048d215_JaffaCakes118.exe	85

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\ec5d2979948319843d3848615048d215_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ec5d2979948319843d3848615048d215_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:2156
- C:\Windows\mstwain32.exe
  "C:\Windows\mstwain32.exe"
  2⤵
  - UAC bypass
  - 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:3724

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3744

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
7c3ff4d4d394fde7c693d04c488a55f8

SHA1
ae2b2acc7e91a910f9075e0e095b528e97827ba4

SHA256
4878bf71fd37ffac1fd6f5153357298544d0ef1f3a114c1f0451befcb85c59a8

SHA512
33c601d9e706cff0c3dce8280b040c361aa51004fd20b51946469b6a02453def5a7aad1e5f58bec3435cc6e25470155d07f71dc0f81ec642efc53215d7be316a

Download Submit
C:\Windows\mstwain32.exe

Filesize
312KB

MD5
ec5d2979948319843d3848615048d215

SHA1
514b6ce9da6c6c190bdfa9d55246c33b06e8625c

SHA256
abcef57a97b2a19a9f8df603bbfccc1e8557202b8d48b2b9216eb415e6b30928

SHA512
0a38a71fca118d4e8a1b2517e1389c9c114732d3c9176a025ddcc75484fac4f879d815b30fa9f784f6425751deba30c4e86425518f5d45b9ef75901fe7af1df2

Download Submit
C:\Windows\ntdtcstp.dll

Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
memory/2156-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2156-10-0x00000000005E0000-0x00000000005E1000-memory.dmp

Filesize
4KB

Download
memory/2156-11-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3724-19-0x00000000005E0000-0x00000000005E1000-memory.dmp

Filesize
4KB

Download
memory/3724-23-0x00000000030E0000-0x00000000030EE000-memory.dmp

Filesize
56KB

Download
memory/3724-26-0x0000000002F90000-0x0000000002F91000-memory.dmp

Filesize
4KB

Download
memory/3724-27-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/3724-28-0x00000000005F0000-0x00000000005F8000-memory.dmp

Filesize
32KB

Download
memory/3724-29-0x00000000030E0000-0x00000000030EE000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads