modiloader | f07d42419a8523516b317e09305ac922cc82ffdebeabefd7b4f9eb6478cd2c84

General

Target

83cb82792903284c98b07c1a1c6abbe0_JaffaCakes118.exe
Size

243KB
MD5

83cb82792903284c98b07c1a1c6abbe0
SHA1

10cfa56d09b30bb30e55eb6cc14add5bac6af924
SHA256

f07d42419a8523516b317e09305ac922cc82ffdebeabefd7b4f9eb6478cd2c84
SHA512

36eb9b548156b8e325d094f36858f3bb44795b34b20c99e34cffd509055e61b482f5ce1917144b106d42c9a2dee1f71ff4075fb39ac3cdcccba0d3d286267db6
SSDEEP

6144:c+LucQYBVNnFl7qADxiUIvwhkju6+w3Rh4AttOc:lLP9BVtF1qADUUIv/+QRh4APD

Score

10^/10

modiloader discovery evasion persistence trojan

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 2 IoCs

resource	yara_rule
behavioral2/memory/2584-14-0x0000000000400000-0x00000000007EF000-memory.dmp	modiloader_stage2
behavioral2/memory/924-35-0x0000000000400000-0x00000000007EF000-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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	83cb82792903284c98b07c1a1c6abbe0_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
924	mstwain32.exe

Loads dropped DLL 4 IoCs

pid	Process
924	mstwain32.exe
924	mstwain32.exe
924	mstwain32.exe
924	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-1-5-21-4182098368-2521458979-3782681353-1000\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	83cb82792903284c98b07c1a1c6abbe0_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	83cb82792903284c98b07c1a1c6abbe0_JaffaCakes118.exe
File opened for modification	C:\Windows\mstwain32.exe	83cb82792903284c98b07c1a1c6abbe0_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	83cb82792903284c98b07c1a1c6abbe0_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstwain32.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2584	83cb82792903284c98b07c1a1c6abbe0_JaffaCakes118.exe
Token: SeBackupPrivilege	4772	vssvc.exe
Token: SeRestorePrivilege	4772	vssvc.exe
Token: SeAuditPrivilege	4772	vssvc.exe
Token: SeDebugPrivilege	924	mstwain32.exe
Token: SeDebugPrivilege	924	mstwain32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
924	mstwain32.exe
924	mstwain32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2584 wrote to memory of 924	2584	83cb82792903284c98b07c1a1c6abbe0_JaffaCakes118.exe	92
PID 2584 wrote to memory of 924	2584	83cb82792903284c98b07c1a1c6abbe0_JaffaCakes118.exe	92
PID 2584 wrote to memory of 924	2584	83cb82792903284c98b07c1a1c6abbe0_JaffaCakes118.exe	92

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\83cb82792903284c98b07c1a1c6abbe0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\83cb82792903284c98b07c1a1c6abbe0_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:2584
- 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:924

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4772

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
e2440f38788161ca32a74b0af8b389fb

SHA1
e48b5f621fa1b47b446d16efd6e393f4b0a85c05

SHA256
6636bde681219fd799628b197e7b1752b487e742214d8ccb64630427e759c4bb

SHA512
b33a7c4bd004797701458f11b8feabf0e0f5e74aa95e2509bb1e73d201c19cf8fd828fe80e29c661e97621d777df4326b11db86149ccb126b7b6caf06c93ab32

Download Submit
C:\Windows\mstwain32.exe

Filesize
243KB

MD5
83cb82792903284c98b07c1a1c6abbe0

SHA1
10cfa56d09b30bb30e55eb6cc14add5bac6af924

SHA256
f07d42419a8523516b317e09305ac922cc82ffdebeabefd7b4f9eb6478cd2c84

SHA512
36eb9b548156b8e325d094f36858f3bb44795b34b20c99e34cffd509055e61b482f5ce1917144b106d42c9a2dee1f71ff4075fb39ac3cdcccba0d3d286267db6

Download Submit
C:\Windows\ntdtcstp.dll

Filesize
7KB

MD5
67587e25a971a141628d7f07bd40ffa0

SHA1
76fcd014539a3bb247cc0b761225f68bd6055f6b

SHA256
e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378

SHA512
6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

Download Submit
memory/924-12-0x0000000000400000-0x00000000007EF000-memory.dmp

Filesize
3.9MB

Download
memory/924-16-0x0000000002450000-0x0000000002540000-memory.dmp

Filesize
960KB

Download
memory/924-24-0x0000000002E70000-0x0000000002E71000-memory.dmp

Filesize
4KB

Download
memory/924-28-0x0000000003D40000-0x0000000003D4E000-memory.dmp

Filesize
56KB

Download
memory/924-31-0x0000000003BF0000-0x0000000003BF1000-memory.dmp

Filesize
4KB

Download
memory/924-33-0x0000000002FC0000-0x0000000002FC8000-memory.dmp

Filesize
32KB

Download
memory/924-34-0x0000000003D40000-0x0000000003D4E000-memory.dmp

Filesize
56KB

Download
memory/924-35-0x0000000000400000-0x00000000007EF000-memory.dmp

Filesize
3.9MB

Download
memory/2584-0-0x0000000000400000-0x00000000007EF000-memory.dmp

Filesize
3.9MB

Download
memory/2584-15-0x0000000002780000-0x0000000002870000-memory.dmp

Filesize
960KB

Download
memory/2584-14-0x0000000000400000-0x00000000007EF000-memory.dmp

Filesize
3.9MB

Download
memory/2584-13-0x0000000002E30000-0x0000000002E31000-memory.dmp

Filesize
4KB

Download
memory/2584-1-0x0000000002780000-0x0000000002870000-memory.dmp

Filesize
960KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads