Malware Analysis Report

2024-08-06 13:58

Sample ID 240616-gqmnwawejk
Target b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118
SHA256 5940a848145f1201b5a8247158ea561f61dbfca205f6b26a0479b0e24146291d
Tags
modiloader evasion persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

5940a848145f1201b5a8247158ea561f61dbfca205f6b26a0479b0e24146291d

Threat Level: Known bad

The file b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

modiloader evasion persistence trojan

ModiLoader Second Stage

Modiloader family

ModiLoader, DBatLoader

UAC bypass

ModiLoader Second Stage

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Checks whether UAC is enabled

Adds Run key to start application

Drops file in Windows directory

Unsigned PE

Enumerates physical storage devices

System policy modification

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Privilege Escalation
TA0004
Abuse Elevation Control Mechanism
T1548
Bypass User Account Control
T1548.002
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Defense Evasion
TA0005
Abuse Elevation Control Mechanism
T1548
Bypass User Account Control
T1548.002
Impair Defenses
T1562
Disable or Modify Tools
T1562.001
Modify Registry
T1112
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Query Registry
T1012
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-16 06:00

Signatures

ModiLoader Second Stage

Description Indicator Process Target
N/A N/A N/A N/A

Modiloader family

modiloader

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-16 06:00

Reported

2024-06-16 06:03

Platform

win7-20240221-en

Max time kernel

149s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe"

Signatures

ModiLoader, DBatLoader

trojan modiloader

UAC bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Windows\mstwain32.exe N/A

ModiLoader Second Stage

Description Indicator Process Target
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Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\mstwain32.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe" C:\Windows\mstwain32.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Windows\mstwain32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Windows\mstwain32.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\mstwain32.exe C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe N/A
File opened for modification C:\Windows\mstwain32.exe C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe N/A
File created C:\Windows\ntdtcstp.dll C:\Windows\mstwain32.exe N/A
File created C:\Windows\cmsetac.dll C:\Windows\mstwain32.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\mstwain32.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\mstwain32.exe N/A

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\mstwain32.exe N/A
N/A N/A C:\Windows\mstwain32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2840 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe C:\Windows\mstwain32.exe
PID 2840 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe C:\Windows\mstwain32.exe
PID 2840 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe C:\Windows\mstwain32.exe
PID 2840 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe C:\Windows\mstwain32.exe

System policy modification

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Windows\mstwain32.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe"

C:\Windows\mstwain32.exe

"C:\Windows\mstwain32.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 delaye77.no-ip.biz udp

Files

memory/2840-0-0x0000000002990000-0x0000000002991000-memory.dmp

C:\Windows\mstwain32.exe

MD5 b2074e99f2099166f5487f3b0d2413d6
SHA1 27ba18d3321dd43b2fd972d0527b89e2f3e28ea6
SHA256 5940a848145f1201b5a8247158ea561f61dbfca205f6b26a0479b0e24146291d
SHA512 9144a1e18ab0be6f581be776e155830f0fff9d8802cccd56593813e11a393e47533b007b533d8011add377211e5facee5bad03e8004f9c9aad51d8682ba097cf

memory/2840-9-0x0000000000400000-0x000000000044B000-memory.dmp

memory/3052-14-0x00000000002E0000-0x00000000002E1000-memory.dmp

memory/3052-15-0x0000000000460000-0x000000000046E000-memory.dmp

memory/3052-17-0x0000000075210000-0x0000000075211000-memory.dmp

memory/3052-18-0x0000000075200000-0x00000000752F0000-memory.dmp

memory/3052-20-0x00000000002F0000-0x00000000002F8000-memory.dmp

memory/3052-19-0x0000000000400000-0x000000000044B000-memory.dmp

memory/3052-21-0x0000000000460000-0x000000000046E000-memory.dmp

memory/3052-22-0x0000000000400000-0x000000000044B000-memory.dmp

memory/3052-25-0x0000000000400000-0x000000000044B000-memory.dmp

memory/3052-28-0x0000000000400000-0x000000000044B000-memory.dmp

memory/3052-31-0x0000000000400000-0x000000000044B000-memory.dmp

memory/3052-34-0x0000000000400000-0x000000000044B000-memory.dmp

memory/3052-37-0x0000000000400000-0x000000000044B000-memory.dmp

memory/3052-40-0x0000000000400000-0x000000000044B000-memory.dmp

memory/3052-43-0x0000000000400000-0x000000000044B000-memory.dmp

memory/3052-46-0x0000000000400000-0x000000000044B000-memory.dmp

memory/3052-49-0x0000000000400000-0x000000000044B000-memory.dmp

memory/3052-52-0x0000000000400000-0x000000000044B000-memory.dmp

memory/3052-55-0x0000000000400000-0x000000000044B000-memory.dmp

memory/3052-58-0x0000000000400000-0x000000000044B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-16 06:00

Reported

2024-06-16 06:03

Platform

win10v2004-20240508-en

Max time kernel

149s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe"

Signatures

ModiLoader, DBatLoader

trojan modiloader

UAC bypass

evasion trojan
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Windows\mstwain32.exe N/A

ModiLoader Second Stage

Description Indicator Process Target
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Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\mstwain32.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\mstwain32.exe N/A
N/A N/A C:\Windows\mstwain32.exe N/A
N/A N/A C:\Windows\mstwain32.exe N/A
N/A N/A C:\Windows\mstwain32.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe" C:\Windows\mstwain32.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Windows\mstwain32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Windows\mstwain32.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\mstwain32.exe C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe N/A
File created C:\Windows\ntdtcstp.dll C:\Windows\mstwain32.exe N/A
File created C:\Windows\cmsetac.dll C:\Windows\mstwain32.exe N/A
File created C:\Windows\mstwain32.exe C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\mstwain32.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\mstwain32.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\mstwain32.exe N/A
N/A N/A C:\Windows\mstwain32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2052 wrote to memory of 1556 N/A C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe C:\Windows\mstwain32.exe
PID 2052 wrote to memory of 1556 N/A C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe C:\Windows\mstwain32.exe
PID 2052 wrote to memory of 1556 N/A C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe C:\Windows\mstwain32.exe

System policy modification

evasion
Description Indicator Process Target
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Windows\mstwain32.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b2074e99f2099166f5487f3b0d2413d6_JaffaCakes118.exe"

C:\Windows\mstwain32.exe

"C:\Windows\mstwain32.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=2860,i,2607710392823067546,4648797561512801463,262144 --variations-seed-version --mojo-platform-channel-handle=3996 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 delaye77.no-ip.biz udp
US 8.8.8.8:53 delaye77.no-ip.biz udp
US 8.8.8.8:53 delaye77.no-ip.biz udp
US 8.8.8.8:53 delaye77.no-ip.biz udp
US 8.8.8.8:53 delaye77.no-ip.biz udp
US 8.8.8.8:53 delaye77.no-ip.biz udp
US 8.8.8.8:53 delaye77.no-ip.biz udp
US 8.8.8.8:53 delaye77.no-ip.biz udp
US 8.8.8.8:53 delaye77.no-ip.biz udp
US 8.8.8.8:53 delaye77.no-ip.biz udp
US 8.8.8.8:53 delaye77.no-ip.biz udp
US 8.8.8.8:53 delaye77.no-ip.biz udp
US 8.8.8.8:53 delaye77.no-ip.biz udp

Files

C:\Windows\mstwain32.exe

MD5 b2074e99f2099166f5487f3b0d2413d6
SHA1 27ba18d3321dd43b2fd972d0527b89e2f3e28ea6
SHA256 5940a848145f1201b5a8247158ea561f61dbfca205f6b26a0479b0e24146291d
SHA512 9144a1e18ab0be6f581be776e155830f0fff9d8802cccd56593813e11a393e47533b007b533d8011add377211e5facee5bad03e8004f9c9aad51d8682ba097cf

memory/2052-9-0x0000000000400000-0x000000000044B000-memory.dmp

C:\Windows\ntdtcstp.dll

MD5 67587e25a971a141628d7f07bd40ffa0
SHA1 76fcd014539a3bb247cc0b761225f68bd6055f6b
SHA256 e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378
SHA512 6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

memory/1556-18-0x00000000007A0000-0x00000000007A1000-memory.dmp

C:\Windows\cmsetac.dll

MD5 9ef34f425e1ca855af02dc940e6c9990
SHA1 198bed2ffbc04778272208b7a254ab7c1445f46d
SHA256 8f9479d142e825fded1d0b7035a9f6fb032c4bb01ebbeb866e5dba00f9d515ef
SHA512 7b0c9ed75b3dc8f0dbb9e2c6927b1204e59be902b768b00ce4c0e138aaba0dbbcdf8fd58b9227302eb73e9c6ce26ea5a66847cd2d25d9070b29acfcf2a25d994

memory/1556-22-0x00000000030E0000-0x00000000030EE000-memory.dmp

memory/1556-25-0x0000000002F90000-0x0000000002F91000-memory.dmp

memory/1556-26-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1556-28-0x00000000030E0000-0x00000000030EE000-memory.dmp

memory/1556-27-0x00000000007B0000-0x00000000007B8000-memory.dmp

memory/1556-29-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1556-32-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1556-35-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1556-38-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1556-41-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1556-44-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1556-47-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1556-50-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1556-53-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1556-56-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1556-59-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1556-62-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1556-65-0x0000000000400000-0x000000000044B000-memory.dmp