Malware Analysis Report

2024-10-23 19:35

Sample ID 240503-r8q45ace49
Target 10c6f2ab630e600b78ed200b381e7040_JaffaCakes118
SHA256 0bc43275172f6b2c4af4d7518beb64cad28ab6cddade83e042d89654e7bc8355
Tags
modiloader evasion persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

0bc43275172f6b2c4af4d7518beb64cad28ab6cddade83e042d89654e7bc8355

Threat Level: Known bad

The file 10c6f2ab630e600b78ed200b381e7040_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

modiloader evasion persistence trojan

ModiLoader Second Stage

UAC bypass

ModiLoader, DBatLoader

Modiloader family

ModiLoader Second Stage

Checks computer location settings

Deletes itself

Loads dropped DLL

Executes dropped EXE

Adds Run key to start application

Checks whether UAC is enabled

Drops file in Windows directory

Unsigned PE

Enumerates physical storage devices

Uses Volume Shadow Copy service COM API

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

System policy modification

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-03 14:52

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

2024-05-03 14:52

Reported

2024-05-03 14:54

Platform

win7-20240221-en

Max time kernel

143s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\10c6f2ab630e600b78ed200b381e7040_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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Deletes itself

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

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-1-5-21-3452737119-3959686427-228443150-1000\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\10c6f2ab630e600b78ed200b381e7040_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\10c6f2ab630e600b78ed200b381e7040_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\10c6f2ab630e600b78ed200b381e7040_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\10c6f2ab630e600b78ed200b381e7040_JaffaCakes118.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\system32\vssvc.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

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

Uses Volume Shadow Copy service COM API

ransomware

Processes

C:\Users\Admin\AppData\Local\Temp\10c6f2ab630e600b78ed200b381e7040_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\10c6f2ab630e600b78ed200b381e7040_JaffaCakes118.exe"

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

C:\Windows\mstwain32.exe

"C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\10c6f2ab630e600b78ed200b381e7040_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 zuhaha.no-ip.org udp

Files

C:\Windows\mstwain32.exe

MD5 10c6f2ab630e600b78ed200b381e7040
SHA1 fde4d24d51c1ce8990a6c4a95d31b54139cafd92
SHA256 0bc43275172f6b2c4af4d7518beb64cad28ab6cddade83e042d89654e7bc8355
SHA512 39f8a473b40615ebc98ca894dc2574f27a197c0fd238313c2a95a121a5976819984e58682d598f1e003e8d9063d7bdfdf949945d1704d221c9c0f4a847ee1d88

memory/1196-8-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1348-12-0x00000000002B0000-0x00000000002B1000-memory.dmp

memory/1348-13-0x00000000005E0000-0x00000000005EE000-memory.dmp

memory/1348-16-0x0000000076B70000-0x0000000076C60000-memory.dmp

memory/1348-15-0x0000000076B80000-0x0000000076B81000-memory.dmp

memory/1348-17-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1348-19-0x00000000005E0000-0x00000000005EE000-memory.dmp

memory/1348-18-0x00000000002C0000-0x00000000002C8000-memory.dmp

memory/1348-20-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1348-23-0x0000000076B70000-0x0000000076C60000-memory.dmp

memory/1348-24-0x0000000076B70000-0x0000000076C60000-memory.dmp

memory/1348-25-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1348-28-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1348-31-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1348-35-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1348-38-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1348-41-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1348-44-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1348-47-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1348-50-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1348-53-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1348-56-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1348-59-0x0000000000400000-0x000000000044B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-03 14:52

Reported

2024-05-03 14:54

Platform

win10v2004-20240419-en

Max time kernel

142s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\10c6f2ab630e600b78ed200b381e7040_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-1-5-21-877519540-908060166-1852957295-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\10c6f2ab630e600b78ed200b381e7040_JaffaCakes118.exe N/A

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\mstwain32.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-1-5-21-877519540-908060166-1852957295-1000\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\10c6f2ab630e600b78ed200b381e7040_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\10c6f2ab630e600b78ed200b381e7040_JaffaCakes118.exe N/A
File opened for modification C:\Windows\mstwain32.exe C:\Users\Admin\AppData\Local\Temp\10c6f2ab630e600b78ed200b381e7040_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\10c6f2ab630e600b78ed200b381e7040_JaffaCakes118.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\system32\vssvc.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

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

Uses Volume Shadow Copy service COM API

ransomware

Processes

C:\Users\Admin\AppData\Local\Temp\10c6f2ab630e600b78ed200b381e7040_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\10c6f2ab630e600b78ed200b381e7040_JaffaCakes118.exe"

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

C:\Windows\mstwain32.exe

"C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\10c6f2ab630e600b78ed200b381e7040_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 zuhaha.no-ip.org udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
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 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 zuhaha.no-ip.org udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 zuhaha.no-ip.org udp
US 8.8.8.8:53 zuhaha.no-ip.org udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 219.138.73.23.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 zuhaha.no-ip.org udp
US 8.8.8.8:53 30.243.111.52.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 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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 zuhaha.no-ip.org udp
US 8.8.8.8:53 zuhaha.no-ip.org udp
US 8.8.8.8:53 zuhaha.no-ip.org udp

Files

C:\Windows\mstwain32.exe

MD5 10c6f2ab630e600b78ed200b381e7040
SHA1 fde4d24d51c1ce8990a6c4a95d31b54139cafd92
SHA256 0bc43275172f6b2c4af4d7518beb64cad28ab6cddade83e042d89654e7bc8355
SHA512 39f8a473b40615ebc98ca894dc2574f27a197c0fd238313c2a95a121a5976819984e58682d598f1e003e8d9063d7bdfdf949945d1704d221c9c0f4a847ee1d88

memory/4788-10-0x0000000000400000-0x000000000044B000-memory.dmp

memory/4788-9-0x0000000000A20000-0x0000000000A21000-memory.dmp

C:\Windows\ntdtcstp.dll

MD5 67587e25a971a141628d7f07bd40ffa0
SHA1 76fcd014539a3bb247cc0b761225f68bd6055f6b
SHA256 e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378
SHA512 6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

memory/1076-18-0x00000000020D0000-0x00000000020D1000-memory.dmp

memory/1076-22-0x0000000002360000-0x000000000236E000-memory.dmp

C:\Windows\cmsetac.dll

MD5 ffd14b863df7d127683a529a00e55657
SHA1 0ce631feb557731af3555a9c595beae9bd5fdcbc
SHA256 98badef8039a15955436e3faca5a7f02a19962c88cd0350f072ffcd35a43dfb3
SHA512 800276b3cd2a530f5fc4a2310492422f6b0c3f315c2fc8707b557ac1a92fb65ed72fc733f788484b2f9c13d8998e1558ee9f92565ca0fca8337e89761122c4f2

memory/1076-25-0x0000000002350000-0x0000000002351000-memory.dmp

memory/1076-26-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1076-28-0x0000000002360000-0x000000000236E000-memory.dmp

memory/1076-27-0x0000000002120000-0x0000000002128000-memory.dmp

memory/1076-29-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1076-32-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1076-35-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1076-38-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1076-41-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1076-44-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1076-47-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1076-50-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1076-53-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1076-56-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1076-59-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1076-62-0x0000000000400000-0x000000000044B000-memory.dmp

memory/1076-65-0x0000000000400000-0x000000000044B000-memory.dmp