Malware Analysis Report

2024-10-19 06:59

Sample ID 240620-srzwdathrd
Target 073b159eb8e8458f0f130191a8edcbce_JaffaCakes118
SHA256 548f3abab155389d2df54938b04d56a662a8a0d49728b25828eb9e9be04b551e
Tags
upx 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

548f3abab155389d2df54938b04d56a662a8a0d49728b25828eb9e9be04b551e

Threat Level: Known bad

The file 073b159eb8e8458f0f130191a8edcbce_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

upx modiloader evasion persistence trojan

UAC bypass

ModiLoader, DBatLoader

ModiLoader Second Stage

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

UPX packed file

Checks whether UAC is enabled

Adds Run key to start application

Drops file in Windows directory

Enumerates physical storage devices

Unsigned PE

Suspicious use of SetWindowsHookEx

Uses Volume Shadow Copy service COM API

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

System policy modification

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-20 15:22

Signatures

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-20 15:22

Reported

2024-06-20 15:24

Platform

win7-20240419-en

Max time kernel

147s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\073b159eb8e8458f0f130191a8edcbce_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

UPX packed file

upx
Description Indicator Process Target
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Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000\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\073b159eb8e8458f0f130191a8edcbce_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\073b159eb8e8458f0f130191a8edcbce_JaffaCakes118.exe N/A
File opened for modification C:\Windows\mstwain32.exe C:\Users\Admin\AppData\Local\Temp\073b159eb8e8458f0f130191a8edcbce_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\073b159eb8e8458f0f130191a8edcbce_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\073b159eb8e8458f0f130191a8edcbce_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\073b159eb8e8458f0f130191a8edcbce_JaffaCakes118.exe"

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

C:\Windows\mstwain32.exe

"C:\Windows\mstwain32.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 AGFA.ZAPTO.ORG udp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
US 8.8.8.8:53 AGFA.ZAPTO.ORG udp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
US 8.8.8.8:53 AGFA.ZAPTO.ORG udp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp

Files

memory/2036-0-0x0000000000400000-0x0000000000450000-memory.dmp

memory/2036-1-0x00000000002A0000-0x00000000002A1000-memory.dmp

memory/2036-5-0x0000000001F40000-0x0000000001F50000-memory.dmp

C:\Windows\mstwain32.exe

MD5 073b159eb8e8458f0f130191a8edcbce
SHA1 088aa82107fd6e669c350269ca3c4f75a73bfb6b
SHA256 548f3abab155389d2df54938b04d56a662a8a0d49728b25828eb9e9be04b551e
SHA512 9bf78abe09ea2fbfeb08b2fa4e1c8492557d0e2df85e78e19a4a98fbdbd72904777f1b8a73f9641ea2f337a58b8889b22768ff072fb023bdd95e10ea7f6bcd32

memory/2828-13-0x0000000000400000-0x0000000000450000-memory.dmp

memory/2036-12-0x0000000000400000-0x0000000000450000-memory.dmp

memory/2828-17-0x00000000002B0000-0x00000000002B1000-memory.dmp

memory/2828-18-0x0000000000490000-0x000000000049E000-memory.dmp

memory/2828-21-0x0000000075DB0000-0x0000000075EA0000-memory.dmp

memory/2828-20-0x0000000075DC0000-0x0000000075DC1000-memory.dmp

memory/2828-23-0x00000000002C0000-0x00000000002C8000-memory.dmp

memory/2828-22-0x0000000000400000-0x0000000000450000-memory.dmp

memory/2828-24-0x0000000000490000-0x000000000049E000-memory.dmp

memory/2828-25-0x0000000000400000-0x0000000000450000-memory.dmp

memory/2828-26-0x0000000000400000-0x0000000000450000-memory.dmp

memory/2828-29-0x0000000075DB0000-0x0000000075EA0000-memory.dmp

memory/2828-30-0x0000000075DB0000-0x0000000075EA0000-memory.dmp

memory/2828-31-0x0000000000400000-0x0000000000450000-memory.dmp

memory/2828-34-0x0000000000400000-0x0000000000450000-memory.dmp

memory/2828-37-0x0000000000400000-0x0000000000450000-memory.dmp

memory/2828-41-0x0000000000400000-0x0000000000450000-memory.dmp

memory/2828-44-0x0000000000400000-0x0000000000450000-memory.dmp

memory/2828-47-0x0000000000400000-0x0000000000450000-memory.dmp

memory/2828-50-0x0000000000400000-0x0000000000450000-memory.dmp

memory/2828-53-0x0000000000400000-0x0000000000450000-memory.dmp

memory/2828-56-0x0000000000400000-0x0000000000450000-memory.dmp

memory/2828-59-0x0000000000400000-0x0000000000450000-memory.dmp

memory/2828-62-0x0000000000400000-0x0000000000450000-memory.dmp

memory/2828-65-0x0000000000400000-0x0000000000450000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-20 15:22

Reported

2024-06-20 15:24

Platform

win10v2004-20240611-en

Max time kernel

148s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\073b159eb8e8458f0f130191a8edcbce_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-1-5-21-2447855248-390457009-3660902674-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\073b159eb8e8458f0f130191a8edcbce_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

UPX packed file

upx
Description Indicator Process Target
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Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\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\073b159eb8e8458f0f130191a8edcbce_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\073b159eb8e8458f0f130191a8edcbce_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\073b159eb8e8458f0f130191a8edcbce_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\073b159eb8e8458f0f130191a8edcbce_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\073b159eb8e8458f0f130191a8edcbce_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\073b159eb8e8458f0f130191a8edcbce_JaffaCakes118.exe"

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

C:\Windows\mstwain32.exe

"C:\Windows\mstwain32.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 100.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 129.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 AGFA.ZAPTO.ORG udp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
US 8.8.8.8:53 97.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 AGFA.ZAPTO.ORG udp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 37.56.20.217.in-addr.arpa udp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
US 8.8.8.8:53 AGFA.ZAPTO.ORG udp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp
PS 94.73.22.187:15963 AGFA.ZAPTO.ORG tcp

Files

memory/5100-0-0x0000000000400000-0x0000000000450000-memory.dmp

memory/5100-1-0x00000000006E0000-0x00000000006E1000-memory.dmp

C:\Windows\mstwain32.exe

MD5 073b159eb8e8458f0f130191a8edcbce
SHA1 088aa82107fd6e669c350269ca3c4f75a73bfb6b
SHA256 548f3abab155389d2df54938b04d56a662a8a0d49728b25828eb9e9be04b551e
SHA512 9bf78abe09ea2fbfeb08b2fa4e1c8492557d0e2df85e78e19a4a98fbdbd72904777f1b8a73f9641ea2f337a58b8889b22768ff072fb023bdd95e10ea7f6bcd32

memory/5100-12-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1588-13-0x0000000000400000-0x0000000000450000-memory.dmp

C:\Windows\ntdtcstp.dll

MD5 67587e25a971a141628d7f07bd40ffa0
SHA1 76fcd014539a3bb247cc0b761225f68bd6055f6b
SHA256 e6829866322d68d5c5b78e3d48dcec70a41cdc42c6f357a44fd329f74a8b4378
SHA512 6e6de7aa02c48f8b96b06e5f1160fbc5c95312320636e138cc997ef3362a61bc50ec03db1f06292eb964cd71915ddb2ec2eb741432c7da44215a4acbb576a350

memory/1588-21-0x0000000000920000-0x0000000000921000-memory.dmp

memory/1588-25-0x00000000028E0000-0x00000000028EE000-memory.dmp

C:\Windows\cmsetac.dll

MD5 fb34c90238f831b28b7a519763dcf85f
SHA1 afa36af09b39cad1d0036560a3ae41c42086d5b6
SHA256 174611c1ce754b8cc497e956de809838a44f552d617b804b0a5364bc0c01cf4c
SHA512 e2bb0da858675c5fdf1cc01562d2d76aee279ec6ccfecb251d81143a73f7199728d7f93673c5c6db339cc877795002116b46f97e65e6457c3bfaacc296eeadfa

memory/1588-28-0x0000000002790000-0x0000000002791000-memory.dmp

memory/1588-29-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1588-30-0x0000000000930000-0x0000000000938000-memory.dmp

memory/1588-31-0x00000000028E0000-0x00000000028EE000-memory.dmp

memory/1588-32-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1588-33-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1588-36-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1588-39-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1588-42-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1588-45-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1588-48-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1588-51-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1588-54-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1588-57-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1588-60-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1588-63-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1588-66-0x0000000000400000-0x0000000000450000-memory.dmp

memory/1588-69-0x0000000000400000-0x0000000000450000-memory.dmp