modiloader | cded66790060017f7ee4bd73a7bca07fe31d523334a007b9d9d83688d09faded

General

Target

f372b595ce6a26cefa0aab6d4f3e9a0e_JaffaCakes118.exe
Size

313KB
MD5

f372b595ce6a26cefa0aab6d4f3e9a0e
SHA1

a7b36becc3e1c23b70d070931e8974270d36e0ce
SHA256

cded66790060017f7ee4bd73a7bca07fe31d523334a007b9d9d83688d09faded
SHA512

82643ac9b352a6d7dbdded79cf5165f76e7e3cd22bc869ca394ff3de44d542253200daa2160c54dcf6ae746048d37b6bf2f0f3f811d0b1c634cfdbfbf15db227
SSDEEP

6144:fG377xS2Vp2CeiorXhwTBN53LpcCJJvHomboS:er7xS2Vp6FwTVbJJvHnoS

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/4264-0-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/files/0x000900000002341f-5.dat	modiloader_stage2
behavioral2/memory/4264-11-0x0000000000400000-0x0000000000450000-memory.dmp	modiloader_stage2
behavioral2/memory/836-27-0x0000000000400000-0x0000000000450000-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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	f372b595ce6a26cefa0aab6d4f3e9a0e_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
836	mstwain32.exe

Loads dropped DLL 4 IoCs

pid	Process
836	mstwain32.exe
836	mstwain32.exe
836	mstwain32.exe
836	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-1-5-21-786284298-625481688-3210388970-1000\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	f372b595ce6a26cefa0aab6d4f3e9a0e_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/4264-0-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/files/0x000900000002341f-5.dat	upx
behavioral2/memory/4264-11-0x0000000000400000-0x0000000000450000-memory.dmp	upx
behavioral2/memory/836-27-0x0000000000400000-0x0000000000450000-memory.dmp	upx

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\mstwain32.exe	f372b595ce6a26cefa0aab6d4f3e9a0e_JaffaCakes118.exe
File opened for modification	C:\Windows\mstwain32.exe	f372b595ce6a26cefa0aab6d4f3e9a0e_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	f372b595ce6a26cefa0aab6d4f3e9a0e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4264	f372b595ce6a26cefa0aab6d4f3e9a0e_JaffaCakes118.exe
Token: SeBackupPrivilege	3936	vssvc.exe
Token: SeRestorePrivilege	3936	vssvc.exe
Token: SeAuditPrivilege	3936	vssvc.exe
Token: SeDebugPrivilege	836	mstwain32.exe
Token: SeDebugPrivilege	836	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
836	mstwain32.exe
836	mstwain32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4264 wrote to memory of 836	4264	f372b595ce6a26cefa0aab6d4f3e9a0e_JaffaCakes118.exe	85
PID 4264 wrote to memory of 836	4264	f372b595ce6a26cefa0aab6d4f3e9a0e_JaffaCakes118.exe	85
PID 4264 wrote to memory of 836	4264	f372b595ce6a26cefa0aab6d4f3e9a0e_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\f372b595ce6a26cefa0aab6d4f3e9a0e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f372b595ce6a26cefa0aab6d4f3e9a0e_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:4264
- 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:836

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:3936

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
b48eb02b3b5c160086524476eec8e39d

SHA1
1515ea79a7036528e698bf97eaa15885ad441e1b

SHA256
d9bb8200ebbf4f0adc136763f43469cf0285d1ff6e8a64ecd32dd01e26a20928

SHA512
24c37a8235b20a6db50e65dbe6f0f62aa89a4561455e7080668eeb5b9e63302b2b35398bb6b87e6d2737c5819632c85440b98c22673426b96651eb5af5a27135

Download Submit
C:\Windows\mstwain32.exe

Filesize
313KB

MD5
f372b595ce6a26cefa0aab6d4f3e9a0e

SHA1
a7b36becc3e1c23b70d070931e8974270d36e0ce

SHA256
cded66790060017f7ee4bd73a7bca07fe31d523334a007b9d9d83688d09faded

SHA512
82643ac9b352a6d7dbdded79cf5165f76e7e3cd22bc869ca394ff3de44d542253200daa2160c54dcf6ae746048d37b6bf2f0f3f811d0b1c634cfdbfbf15db227

Download Submit
C:\Windows\ntdtcstp.dll

Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
memory/836-19-0x0000000000920000-0x0000000000921000-memory.dmp

Filesize
4KB

Download
memory/836-23-0x00000000030E0000-0x00000000030EE000-memory.dmp

Filesize
56KB

Download
memory/836-26-0x0000000002F90000-0x0000000002F91000-memory.dmp

Filesize
4KB

Download
memory/836-27-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/836-28-0x0000000000930000-0x0000000000938000-memory.dmp

Filesize
32KB

Download
memory/836-29-0x00000000030E0000-0x00000000030EE000-memory.dmp

Filesize
56KB

Download
memory/4264-0-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download
memory/4264-8-0x0000000000510000-0x0000000000511000-memory.dmp

Filesize
4KB

Download
memory/4264-11-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads