Malware Analysis Report

2024-08-06 14:36

Sample ID 240525-mgb4nsde2s
Target 71a52cd7ea8e36076356f2b9802746c2_JaffaCakes118
SHA256 3f1d7c85a9a509adc149731134578d1bd1bc9da42a777d095886473cb4ac2088
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

3f1d7c85a9a509adc149731134578d1bd1bc9da42a777d095886473cb4ac2088

Threat Level: Known bad

The file 71a52cd7ea8e36076356f2b9802746c2_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

modiloader evasion persistence trojan

Modiloader family

ModiLoader Second Stage

ModiLoader, DBatLoader

UAC bypass

ModiLoader Second Stage

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Adds Run key to start application

Checks whether UAC is enabled

Drops file in Windows directory

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

System policy modification

Suspicious use of AdjustPrivilegeToken

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

2024-05-25 10:25

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

2024-05-25 10:25

Reported

2024-05-25 10:28

Platform

win7-20240508-en

Max time kernel

149s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\71a52cd7ea8e36076356f2b9802746c2_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-1-5-21-268080393-3149932598-1824759070-1000\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\71a52cd7ea8e36076356f2b9802746c2_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\71a52cd7ea8e36076356f2b9802746c2_JaffaCakes118.exe N/A
File opened for modification C:\Windows\mstwain32.exe C:\Users\Admin\AppData\Local\Temp\71a52cd7ea8e36076356f2b9802746c2_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\71a52cd7ea8e36076356f2b9802746c2_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 2344 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\71a52cd7ea8e36076356f2b9802746c2_JaffaCakes118.exe C:\Windows\mstwain32.exe
PID 2344 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\71a52cd7ea8e36076356f2b9802746c2_JaffaCakes118.exe C:\Windows\mstwain32.exe
PID 2344 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\71a52cd7ea8e36076356f2b9802746c2_JaffaCakes118.exe C:\Windows\mstwain32.exe
PID 2344 wrote to memory of 2688 N/A C:\Users\Admin\AppData\Local\Temp\71a52cd7ea8e36076356f2b9802746c2_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\71a52cd7ea8e36076356f2b9802746c2_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\71a52cd7ea8e36076356f2b9802746c2_JaffaCakes118.exe"

C:\Windows\mstwain32.exe

"C:\Windows\mstwain32.exe"

Network

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

Files

memory/2344-7-0x0000000000400000-0x000000000044C000-memory.dmp

C:\Windows\mstwain32.exe

MD5 71a52cd7ea8e36076356f2b9802746c2
SHA1 1d638b20b2fa70c8fc7ff5a4740ce18f07486b8a
SHA256 3f1d7c85a9a509adc149731134578d1bd1bc9da42a777d095886473cb4ac2088
SHA512 3d1d1c44ab64fa116d379d22d0b6e7d471b45d96617e965b9d032f798135600f8c73f708dcefb913d6565dd3968522af6e6e5e23f09c47551537236fd9c68523

memory/2688-11-0x0000000000320000-0x0000000000321000-memory.dmp

memory/2688-12-0x0000000001D40000-0x0000000001D4E000-memory.dmp

memory/2688-14-0x00000000761C0000-0x00000000761C1000-memory.dmp

memory/2688-15-0x00000000761B0000-0x00000000762A0000-memory.dmp

memory/2688-16-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2688-18-0x0000000001D40000-0x0000000001D4E000-memory.dmp

memory/2688-17-0x0000000000380000-0x0000000000388000-memory.dmp

memory/2688-19-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2688-22-0x00000000761B0000-0x00000000762A0000-memory.dmp

memory/2688-23-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2688-26-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2688-29-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2688-32-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2688-35-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2688-38-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2688-41-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2688-44-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2688-47-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2688-50-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2688-53-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2688-56-0x0000000000400000-0x000000000044C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-25 10:25

Reported

2024-05-25 10:28

Platform

win10v2004-20240426-en

Max time kernel

148s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\71a52cd7ea8e36076356f2b9802746c2_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-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\71a52cd7ea8e36076356f2b9802746c2_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-1-5-21-540404634-651139247-2967210625-1000\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:\Windows\mstwain32.exe N/A
Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" C:\Windows\mstwain32.exe N/A
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\71a52cd7ea8e36076356f2b9802746c2_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\cmsetac.dll C:\Windows\mstwain32.exe N/A
File created C:\Windows\mstwain32.exe C:\Users\Admin\AppData\Local\Temp\71a52cd7ea8e36076356f2b9802746c2_JaffaCakes118.exe N/A
File opened for modification C:\Windows\mstwain32.exe C:\Users\Admin\AppData\Local\Temp\71a52cd7ea8e36076356f2b9802746c2_JaffaCakes118.exe N/A
File created C:\Windows\ntdtcstp.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\71a52cd7ea8e36076356f2b9802746c2_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 3452 wrote to memory of 2356 N/A C:\Users\Admin\AppData\Local\Temp\71a52cd7ea8e36076356f2b9802746c2_JaffaCakes118.exe C:\Windows\mstwain32.exe
PID 3452 wrote to memory of 2356 N/A C:\Users\Admin\AppData\Local\Temp\71a52cd7ea8e36076356f2b9802746c2_JaffaCakes118.exe C:\Windows\mstwain32.exe
PID 3452 wrote to memory of 2356 N/A C:\Users\Admin\AppData\Local\Temp\71a52cd7ea8e36076356f2b9802746c2_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\71a52cd7ea8e36076356f2b9802746c2_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\71a52cd7ea8e36076356f2b9802746c2_JaffaCakes118.exe"

C:\Windows\mstwain32.exe

"C:\Windows\mstwain32.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 amazingness.no-ip.biz udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 amazingness.no-ip.biz udp
US 8.8.8.8:53 amazingness.no-ip.biz udp
US 8.8.8.8:53 amazingness.no-ip.biz udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 amazingness.no-ip.biz udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 amazingness.no-ip.biz udp
US 8.8.8.8:53 amazingness.no-ip.biz udp
US 8.8.8.8:53 amazingness.no-ip.biz udp
US 8.8.8.8:53 96.136.73.23.in-addr.arpa udp
US 8.8.8.8:53 amazingness.no-ip.biz udp
US 8.8.8.8:53 amazingness.no-ip.biz udp
US 8.8.8.8:53 amazingness.no-ip.biz udp
US 8.8.8.8:53 amazingness.no-ip.biz udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 amazingness.no-ip.biz udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 amazingness.no-ip.biz udp
US 8.8.8.8:53 amazingness.no-ip.biz udp
US 8.8.8.8:53 amazingness.no-ip.biz udp
US 8.8.8.8:53 amazingness.no-ip.biz udp
US 8.8.8.8:53 amazingness.no-ip.biz udp
US 8.8.8.8:53 amazingness.no-ip.biz udp

Files

C:\Windows\mstwain32.exe

MD5 71a52cd7ea8e36076356f2b9802746c2
SHA1 1d638b20b2fa70c8fc7ff5a4740ce18f07486b8a
SHA256 3f1d7c85a9a509adc149731134578d1bd1bc9da42a777d095886473cb4ac2088
SHA512 3d1d1c44ab64fa116d379d22d0b6e7d471b45d96617e965b9d032f798135600f8c73f708dcefb913d6565dd3968522af6e6e5e23f09c47551537236fd9c68523

memory/3452-8-0x0000000000400000-0x000000000044C000-memory.dmp

C:\Windows\ntdtcstp.dll

MD5 67587e25a971a141628d7f07bd40ffa0
SHA1 76fcd014539a3bb247cc0b761225f68bd6055f6b
SHA256 e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378
SHA512 6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

memory/2356-16-0x0000000001FD0000-0x0000000001FD1000-memory.dmp

C:\Windows\cmsetac.dll

MD5 d2b20db3f5352befbf6d2a38f3dd8d5c
SHA1 25cdc577ac81bca03def5b34916d4ffd81444604
SHA256 ef61b13e879b9ddacff5a073a53640b485951931fc68c6399fa6ffacaa91c5f6
SHA512 474a35c11a80f6bfb3718a520b89f8d747f4ac1e0ca9bda66c34a0692e08d8e0d4841c1931035faa4ccebc14fa26dac660331278d4a0696b59d8704092771435

memory/2356-20-0x00000000030E0000-0x00000000030EE000-memory.dmp

memory/2356-23-0x0000000002F90000-0x0000000002F91000-memory.dmp

memory/2356-24-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2356-26-0x00000000030E0000-0x00000000030EE000-memory.dmp

memory/2356-25-0x0000000002020000-0x0000000002028000-memory.dmp

memory/2356-27-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2356-30-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2356-33-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2356-36-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2356-39-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2356-42-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2356-45-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2356-48-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2356-51-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2356-54-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2356-57-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2356-60-0x0000000000400000-0x000000000044C000-memory.dmp

memory/2356-63-0x0000000000400000-0x000000000044C000-memory.dmp