modiloader | eb20b605b84513cdb618538beb1f2f572ec7e01e63d6ee4966fdc486b8b82d81

General

Target

f051ef7670d60fe0b472f5c505c42ff9_JaffaCakes118.exe
Size

317KB
MD5

f051ef7670d60fe0b472f5c505c42ff9
SHA1

9e789c40094cbbcb491062ad3cfbb03d356d0ccb
SHA256

eb20b605b84513cdb618538beb1f2f572ec7e01e63d6ee4966fdc486b8b82d81
SHA512

9cfc02de337af30c8fa75333eef3682336f076e6d49312f98bfe2957a0ea9e25d20c8ab54047b9cb878e98b19715a298a0e9db73fbf1eb945a4d204ecab6b063
SSDEEP

6144:3G377xS2Vp2CeiorXhwTBF53lGzOjpcCJJvHCKpoS:2r7xS2Vp6FwTPZjbJJvHdpoS

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/2036-0-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/files/0x0008000000023418-6.dat	modiloader_stage2
behavioral2/memory/2036-11-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/1544-27-0x0000000000400000-0x0000000000450000-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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	f051ef7670d60fe0b472f5c505c42ff9_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
1544	mstwain32.exe

Loads dropped DLL 4 IoCs

pid	Process
1544	mstwain32.exe
1544	mstwain32.exe
1544	mstwain32.exe
1544	mstwain32.exe

UPX packed file 4 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2036-0-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/files/0x0008000000023418-6.dat	upx
behavioral2/memory/2036-11-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/1544-27-0x0000000000400000-0x0000000000450000-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-1-5-21-2392887640-1187051047-2909758433-1000\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	f051ef7670d60fe0b472f5c505c42ff9_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	f051ef7670d60fe0b472f5c505c42ff9_JaffaCakes118.exe
File opened for modification	C:\Windows\mstwain32.exe	f051ef7670d60fe0b472f5c505c42ff9_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	f051ef7670d60fe0b472f5c505c42ff9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2036	f051ef7670d60fe0b472f5c505c42ff9_JaffaCakes118.exe
Token: SeBackupPrivilege	3968	vssvc.exe
Token: SeRestorePrivilege	3968	vssvc.exe
Token: SeAuditPrivilege	3968	vssvc.exe
Token: SeDebugPrivilege	1544	mstwain32.exe
Token: SeDebugPrivilege	1544	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1544	mstwain32.exe
1544	mstwain32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 1544	2036	f051ef7670d60fe0b472f5c505c42ff9_JaffaCakes118.exe	90
PID 2036 wrote to memory of 1544	2036	f051ef7670d60fe0b472f5c505c42ff9_JaffaCakes118.exe	90
PID 2036 wrote to memory of 1544	2036	f051ef7670d60fe0b472f5c505c42ff9_JaffaCakes118.exe	90

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\f051ef7670d60fe0b472f5c505c42ff9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f051ef7670d60fe0b472f5c505c42ff9_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:2036
- 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:1544

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3968

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

Replay Monitor

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Downloads

C:\Windows\cmsetac.dll

Filesize
33KB

MD5
289033ce80b9371d56e0186ab76b3f3a

SHA1
a788407c9f15de81d3e2d874936f7d08cf2049bf

SHA256
0d80a1c2fc713f4765974614d84c0d6c94b166f4bd9b1bb2509fbcda5a9ca691

SHA512
c6ab6b4feae6592ff4fc6e5c12c1a535f135c9551b966faa6ee304ce6dcb966d5c3a065ae39d7248704da763c27f0610e07435ecc56c24a5a77b1ac1c44b53cf

Download Submit
C:\Windows\mstwain32.exe

Filesize
317KB

MD5
f051ef7670d60fe0b472f5c505c42ff9

SHA1
9e789c40094cbbcb491062ad3cfbb03d356d0ccb

SHA256
eb20b605b84513cdb618538beb1f2f572ec7e01e63d6ee4966fdc486b8b82d81

SHA512
9cfc02de337af30c8fa75333eef3682336f076e6d49312f98bfe2957a0ea9e25d20c8ab54047b9cb878e98b19715a298a0e9db73fbf1eb945a4d204ecab6b063

Download Submit
C:\Windows\ntdtcstp.dll

Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
memory/1544-19-0x0000000000970000-0x0000000000971000-memory.dmp

Filesize
4KB

Download
memory/1544-23-0x00000000030E0000-0x00000000030EE000-memory.dmp

Filesize
56KB

Download
memory/1544-26-0x0000000002F90000-0x0000000002F91000-memory.dmp

Filesize
4KB

Download
memory/1544-27-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/1544-28-0x0000000000980000-0x0000000000988000-memory.dmp

Filesize
32KB

Download
memory/1544-29-0x00000000030E0000-0x00000000030EE000-memory.dmp

Filesize
56KB

Download
memory/2036-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/2036-1-0x0000000000A20000-0x0000000000A21000-memory.dmp

Filesize
4KB

Download
memory/2036-11-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads